diff options
Diffstat (limited to 'clang')
11 files changed, 1582 insertions, 3 deletions
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst index 4ac300deb58..37a8f30e0bc 100644 --- a/clang/docs/ReleaseNotes.rst +++ b/clang/docs/ReleaseNotes.rst @@ -78,6 +78,10 @@ Non-comprehensive list of changes in this release been extended to detect these cases, so that code relying on them can be detected and fixed. +* The Implicit Conversion Sanitizer (``-fsanitize=implicit-conversion``) has + learned to sanitize pre/post increment/decrement of types with bit width + smaller than ``int``. + - For X86 target, -march=skylake-avx512, -march=icelake-client, -march=icelake-server, -march=cascadelake, -march=cooperlake will default to not using 512-bit zmm registers in vectorized code unless 512-bit intrinsics diff --git a/clang/lib/CodeGen/CGExprScalar.cpp b/clang/lib/CodeGen/CGExprScalar.cpp index 82297664064..953ced9168c 100644 --- a/clang/lib/CodeGen/CGExprScalar.cpp +++ b/clang/lib/CodeGen/CGExprScalar.cpp @@ -2419,9 +2419,39 @@ ScalarExprEmitter::EmitScalarPrePostIncDec(const UnaryOperator *E, LValue LV, // Most common case by far: integer increment. } else if (type->isIntegerType()) { - // Note that signed integer inc/dec with width less than int can't - // overflow because of promotion rules; we're just eliding a few steps here. - if (E->canOverflow() && type->isSignedIntegerOrEnumerationType()) { + assert((!type->isPromotableIntegerType() || + (type->isSignedIntegerOrEnumerationType() || + CGF.getContext() + .getPromotedIntegerType(type) + ->isSignedIntegerOrEnumerationType())) && + "The following check expects that if we do promotion, at least one " + "of the types (either base or promoted) will be signed."); + if (CGF.SanOpts.hasOneOf( + SanitizerKind::ImplicitIntegerArithmeticValueChange) && + type->isPromotableIntegerType()) { + // While `x += 1` (for `x` with width less than int) is modeled as + // promotion+arithmetics+demotion, and we can catch lossy demotion with + // ease; inc/dec with width less than int can't overflow because of + // promotion rules, so we omit promotion+demotion, which means that we can + // not catch lossy "demotion". Because we still want to catch these cases + // when the sanitizer is enabled, we perform the promotion, then perform + // the increment/decrement in the wider type, and finally + // perform the demotion. This will catch lossy demotions. + + QualType promotedType = CGF.getContext().getPromotedIntegerType(type); + assert(promotedType != type && "Shouldn't promote to the same type."); + value = EmitScalarConversion(value, type, promotedType, E->getExprLoc()); + Value *amt = llvm::ConstantInt::get(value->getType(), amount, true); + value = Builder.CreateAdd(value, amt, isInc ? "inc" : "dec"); + // Do pass non-default ScalarConversionOpts so that sanitizer check is + // emitted. + value = EmitScalarConversion(value, promotedType, type, E->getExprLoc(), + ScalarConversionOpts(CGF.SanOpts)); + + // Note that signed integer inc/dec with width less than int can't + // overflow because of promotion rules; we're just eliding a few steps + // here. + } else if (E->canOverflow() && type->isSignedIntegerOrEnumerationType()) { value = EmitIncDecConsiderOverflowBehavior(E, value, isInc); } else if (E->canOverflow() && type->isUnsignedIntegerType() && CGF.SanOpts.has(SanitizerKind::UnsignedIntegerOverflow)) { diff --git a/clang/test/CodeGen/catch-implicit-conversions-incdec-basics.c b/clang/test/CodeGen/catch-implicit-conversions-incdec-basics.c new file mode 100644 index 00000000000..e97a72cb0a3 --- /dev/null +++ b/clang/test/CodeGen/catch-implicit-conversions-incdec-basics.c @@ -0,0 +1,139 @@ +// RUN: %clang_cc1 -fsanitize=implicit-unsigned-integer-truncation,implicit-signed-integer-truncation,implicit-integer-sign-change -fsanitize-recover=implicit-unsigned-integer-truncation,implicit-signed-integer-truncation,implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK + +// CHECK-DAG: @[[INT:.*]] = {{.*}} c"'int'\00" } +// CHECK-DAG: @[[UNSIGNED_SHORT:.*]] = {{.*}} c"'unsigned short'\00" } +// CHECK-DAG: @[[LINE_100:.*]] = {{.*}}, i32 100, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_200:.*]] = {{.*}}, i32 200, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_300:.*]] = {{.*}}, i32 300, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_400:.*]] = {{.*}}, i32 400, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[SHORT:.*]] = {{.*}} c"'short'\00" } +// CHECK-DAG: @[[LINE_500:.*]] = {{.*}}, i32 500, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_600:.*]] = {{.*}}, i32 600, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_700:.*]] = {{.*}}, i32 700, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_800:.*]] = {{.*}}, i32 800, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[UNSIGNED_CHAR:.*]] = {{.*}} c"'unsigned char'\00" } +// CHECK-DAG: @[[LINE_900:.*]] = {{.*}}, i32 900, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1000:.*]] = {{.*}}, i32 1000, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1100:.*]] = {{.*}}, i32 1100, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1200:.*]] = {{.*}}, i32 1200, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[SIGNED_CHAR:.*]] = {{.*}} c"'signed char'\00" } +// CHECK-DAG: @[[LINE_1300:.*]] = {{.*}}, i32 1300, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1400:.*]] = {{.*}}, i32 1400, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1500:.*]] = {{.*}}, i32 1500, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1600:.*]] = {{.*}}, i32 1600, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } + +// CHECK-LABEL: @t0( +unsigned short t0(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_100]] to i8*) +#line 100 + x++; + return x; +} +// CHECK-LABEL: @t1( +unsigned short t1(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_200]] to i8*) +#line 200 + x--; + return x; +} +// CHECK-LABEL: @t2( +unsigned short t2(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_300]] to i8*) +#line 300 + ++x; + return x; +} +// CHECK-LABEL: @t3( +unsigned short t3(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_400]] to i8*) +#line 400 + --x; + return x; +} + +// CHECK-LABEL: @t4( +signed short t4(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_500]] to i8*) +#line 500 + x++; + return x; +} +// CHECK-LABEL: @t5( +signed short t5(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_600]] to i8*) +#line 600 + x--; + return x; +} +// CHECK-LABEL: @t6( +signed short t6(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_700]] to i8*) +#line 700 + ++x; + return x; +} +// CHECK-LABEL: @t7( +signed short t7(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_800]] to i8*) +#line 800 + --x; + return x; +} + +// CHECK-LABEL: @t8( +unsigned char t8(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_900]] to i8*) +#line 900 + x++; + return x; +} +// CHECK-LABEL: @t9( +unsigned char t9(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1000]] to i8*) +#line 1000 + x--; + return x; +} +// CHECK-LABEL: @t10( +unsigned char t10(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1100]] to i8*) +#line 1100 + ++x; + return x; +} +// CHECK-LABEL: @t11( +unsigned char t11(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1200]] to i8*) +#line 1200 + --x; + return x; +} + +// CHECK-LABEL: @t12( +signed char t12(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1300]] to i8*) +#line 1300 + x++; + return x; +} +// CHECK-LABEL: @t13( +signed char t13(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1400]] to i8*) +#line 1400 + x--; + return x; +} +// CHECK-LABEL: @t14( +signed char t14(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1500]] to i8*) +#line 1500 + ++x; + return x; +} +// CHECK-LABEL: @t15( +signed char t15(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1600]] to i8*) +#line 1600 + --x; + return x; +} diff --git a/clang/test/CodeGen/catch-implicit-integer-arithmetic-value-change-incdec-basics.c b/clang/test/CodeGen/catch-implicit-integer-arithmetic-value-change-incdec-basics.c new file mode 100644 index 00000000000..5e0aa1108df --- /dev/null +++ b/clang/test/CodeGen/catch-implicit-integer-arithmetic-value-change-incdec-basics.c @@ -0,0 +1,139 @@ +// RUN: %clang_cc1 -fsanitize=implicit-signed-integer-truncation,implicit-integer-sign-change -fsanitize-recover=implicit-signed-integer-truncation,implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK + +// CHECK-DAG: @[[INT:.*]] = {{.*}} c"'int'\00" } +// CHECK-DAG: @[[UNSIGNED_SHORT:.*]] = {{.*}} c"'unsigned short'\00" } +// CHECK-DAG: @[[LINE_100:.*]] = {{.*}}, i32 100, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_200:.*]] = {{.*}}, i32 200, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_300:.*]] = {{.*}}, i32 300, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_400:.*]] = {{.*}}, i32 400, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[SHORT:.*]] = {{.*}} c"'short'\00" } +// CHECK-DAG: @[[LINE_500:.*]] = {{.*}}, i32 500, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_600:.*]] = {{.*}}, i32 600, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_700:.*]] = {{.*}}, i32 700, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_800:.*]] = {{.*}}, i32 800, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[UNSIGNED_CHAR:.*]] = {{.*}} c"'unsigned char'\00" } +// CHECK-DAG: @[[LINE_900:.*]] = {{.*}}, i32 900, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1000:.*]] = {{.*}}, i32 1000, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1100:.*]] = {{.*}}, i32 1100, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1200:.*]] = {{.*}}, i32 1200, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[SIGNED_CHAR:.*]] = {{.*}} c"'signed char'\00" } +// CHECK-DAG: @[[LINE_1300:.*]] = {{.*}}, i32 1300, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1400:.*]] = {{.*}}, i32 1400, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1500:.*]] = {{.*}}, i32 1500, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1600:.*]] = {{.*}}, i32 1600, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } + +// CHECK-LABEL: @t0( +unsigned short t0(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_100]] to i8*) +#line 100 + x++; + return x; +} +// CHECK-LABEL: @t1( +unsigned short t1(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_200]] to i8*) +#line 200 + x--; + return x; +} +// CHECK-LABEL: @t2( +unsigned short t2(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_300]] to i8*) +#line 300 + ++x; + return x; +} +// CHECK-LABEL: @t3( +unsigned short t3(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_400]] to i8*) +#line 400 + --x; + return x; +} + +// CHECK-LABEL: @t4( +signed short t4(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_500]] to i8*) +#line 500 + x++; + return x; +} +// CHECK-LABEL: @t5( +signed short t5(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_600]] to i8*) +#line 600 + x--; + return x; +} +// CHECK-LABEL: @t6( +signed short t6(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_700]] to i8*) +#line 700 + ++x; + return x; +} +// CHECK-LABEL: @t7( +signed short t7(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_800]] to i8*) +#line 800 + --x; + return x; +} + +// CHECK-LABEL: @t8( +unsigned char t8(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_900]] to i8*) +#line 900 + x++; + return x; +} +// CHECK-LABEL: @t9( +unsigned char t9(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1000]] to i8*) +#line 1000 + x--; + return x; +} +// CHECK-LABEL: @t10( +unsigned char t10(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1100]] to i8*) +#line 1100 + ++x; + return x; +} +// CHECK-LABEL: @t11( +unsigned char t11(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1200]] to i8*) +#line 1200 + --x; + return x; +} + +// CHECK-LABEL: @t12( +signed char t12(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1300]] to i8*) +#line 1300 + x++; + return x; +} +// CHECK-LABEL: @t13( +signed char t13(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1400]] to i8*) +#line 1400 + x--; + return x; +} +// CHECK-LABEL: @t14( +signed char t14(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1500]] to i8*) +#line 1500 + ++x; + return x; +} +// CHECK-LABEL: @t15( +signed char t15(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1600]] to i8*) +#line 1600 + --x; + return x; +} diff --git a/clang/test/CodeGen/catch-implicit-integer-conversions-incdec-basics.c b/clang/test/CodeGen/catch-implicit-integer-conversions-incdec-basics.c new file mode 100644 index 00000000000..e97a72cb0a3 --- /dev/null +++ b/clang/test/CodeGen/catch-implicit-integer-conversions-incdec-basics.c @@ -0,0 +1,139 @@ +// RUN: %clang_cc1 -fsanitize=implicit-unsigned-integer-truncation,implicit-signed-integer-truncation,implicit-integer-sign-change -fsanitize-recover=implicit-unsigned-integer-truncation,implicit-signed-integer-truncation,implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK + +// CHECK-DAG: @[[INT:.*]] = {{.*}} c"'int'\00" } +// CHECK-DAG: @[[UNSIGNED_SHORT:.*]] = {{.*}} c"'unsigned short'\00" } +// CHECK-DAG: @[[LINE_100:.*]] = {{.*}}, i32 100, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_200:.*]] = {{.*}}, i32 200, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_300:.*]] = {{.*}}, i32 300, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_400:.*]] = {{.*}}, i32 400, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[SHORT:.*]] = {{.*}} c"'short'\00" } +// CHECK-DAG: @[[LINE_500:.*]] = {{.*}}, i32 500, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_600:.*]] = {{.*}}, i32 600, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_700:.*]] = {{.*}}, i32 700, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_800:.*]] = {{.*}}, i32 800, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[UNSIGNED_CHAR:.*]] = {{.*}} c"'unsigned char'\00" } +// CHECK-DAG: @[[LINE_900:.*]] = {{.*}}, i32 900, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1000:.*]] = {{.*}}, i32 1000, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1100:.*]] = {{.*}}, i32 1100, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1200:.*]] = {{.*}}, i32 1200, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[SIGNED_CHAR:.*]] = {{.*}} c"'signed char'\00" } +// CHECK-DAG: @[[LINE_1300:.*]] = {{.*}}, i32 1300, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1400:.*]] = {{.*}}, i32 1400, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1500:.*]] = {{.*}}, i32 1500, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1600:.*]] = {{.*}}, i32 1600, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } + +// CHECK-LABEL: @t0( +unsigned short t0(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_100]] to i8*) +#line 100 + x++; + return x; +} +// CHECK-LABEL: @t1( +unsigned short t1(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_200]] to i8*) +#line 200 + x--; + return x; +} +// CHECK-LABEL: @t2( +unsigned short t2(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_300]] to i8*) +#line 300 + ++x; + return x; +} +// CHECK-LABEL: @t3( +unsigned short t3(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_400]] to i8*) +#line 400 + --x; + return x; +} + +// CHECK-LABEL: @t4( +signed short t4(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_500]] to i8*) +#line 500 + x++; + return x; +} +// CHECK-LABEL: @t5( +signed short t5(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_600]] to i8*) +#line 600 + x--; + return x; +} +// CHECK-LABEL: @t6( +signed short t6(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_700]] to i8*) +#line 700 + ++x; + return x; +} +// CHECK-LABEL: @t7( +signed short t7(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_800]] to i8*) +#line 800 + --x; + return x; +} + +// CHECK-LABEL: @t8( +unsigned char t8(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_900]] to i8*) +#line 900 + x++; + return x; +} +// CHECK-LABEL: @t9( +unsigned char t9(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1000]] to i8*) +#line 1000 + x--; + return x; +} +// CHECK-LABEL: @t10( +unsigned char t10(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1100]] to i8*) +#line 1100 + ++x; + return x; +} +// CHECK-LABEL: @t11( +unsigned char t11(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1200]] to i8*) +#line 1200 + --x; + return x; +} + +// CHECK-LABEL: @t12( +signed char t12(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1300]] to i8*) +#line 1300 + x++; + return x; +} +// CHECK-LABEL: @t13( +signed char t13(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1400]] to i8*) +#line 1400 + x--; + return x; +} +// CHECK-LABEL: @t14( +signed char t14(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1500]] to i8*) +#line 1500 + ++x; + return x; +} +// CHECK-LABEL: @t15( +signed char t15(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1600]] to i8*) +#line 1600 + --x; + return x; +} diff --git a/clang/test/CodeGen/catch-implicit-integer-sign-changes-incdec-basics.c b/clang/test/CodeGen/catch-implicit-integer-sign-changes-incdec-basics.c new file mode 100644 index 00000000000..93495b331b9 --- /dev/null +++ b/clang/test/CodeGen/catch-implicit-integer-sign-changes-incdec-basics.c @@ -0,0 +1,139 @@ +// RUN: %clang_cc1 -fsanitize=implicit-integer-sign-change -fsanitize-recover=implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK + +// CHECK-DAG: @[[INT:.*]] = {{.*}} c"'int'\00" } +// CHECK-DAG: @[[UNSIGNED_SHORT:.*]] = {{.*}} c"'unsigned short'\00" } +// CHECK-DAG: @[[LINE_100:.*]] = {{.*}}, i32 100, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 3 } +// CHECK-DAG: @[[LINE_200:.*]] = {{.*}}, i32 200, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 3 } +// CHECK-DAG: @[[LINE_300:.*]] = {{.*}}, i32 300, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 3 } +// CHECK-DAG: @[[LINE_400:.*]] = {{.*}}, i32 400, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 3 } +// CHECK-DAG: @[[SHORT:.*]] = {{.*}} c"'short'\00" } +// CHECK-DAG: @[[LINE_500:.*]] = {{.*}}, i32 500, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 3 } +// CHECK-DAG: @[[LINE_600:.*]] = {{.*}}, i32 600, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 3 } +// CHECK-DAG: @[[LINE_700:.*]] = {{.*}}, i32 700, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 3 } +// CHECK-DAG: @[[LINE_800:.*]] = {{.*}}, i32 800, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 3 } +// CHECK-DAG: @[[UNSIGNED_CHAR:.*]] = {{.*}} c"'unsigned char'\00" } +// CHECK-DAG: @[[LINE_900:.*]] = {{.*}}, i32 900, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 } +// CHECK-DAG: @[[LINE_1000:.*]] = {{.*}}, i32 1000, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 } +// CHECK-DAG: @[[LINE_1100:.*]] = {{.*}}, i32 1100, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 } +// CHECK-DAG: @[[LINE_1200:.*]] = {{.*}}, i32 1200, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 } +// CHECK-DAG: @[[SIGNED_CHAR:.*]] = {{.*}} c"'signed char'\00" } +// CHECK-DAG: @[[LINE_1300:.*]] = {{.*}}, i32 1300, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 } +// CHECK-DAG: @[[LINE_1400:.*]] = {{.*}}, i32 1400, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 } +// CHECK-DAG: @[[LINE_1500:.*]] = {{.*}}, i32 1500, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 } +// CHECK-DAG: @[[LINE_1600:.*]] = {{.*}}, i32 1600, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 } + +// CHECK-LABEL: @t0( +unsigned short t0(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_100]] to i8*) +#line 100 + x++; + return x; +} +// CHECK-LABEL: @t1( +unsigned short t1(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_200]] to i8*) +#line 200 + x--; + return x; +} +// CHECK-LABEL: @t2( +unsigned short t2(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_300]] to i8*) +#line 300 + ++x; + return x; +} +// CHECK-LABEL: @t3( +unsigned short t3(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_400]] to i8*) +#line 400 + --x; + return x; +} + +// CHECK-LABEL: @t4( +signed short t4(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_500]] to i8*) +#line 500 + x++; + return x; +} +// CHECK-LABEL: @t5( +signed short t5(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_600]] to i8*) +#line 600 + x--; + return x; +} +// CHECK-LABEL: @t6( +signed short t6(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_700]] to i8*) +#line 700 + ++x; + return x; +} +// CHECK-LABEL: @t7( +signed short t7(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_800]] to i8*) +#line 800 + --x; + return x; +} + +// CHECK-LABEL: @t8( +unsigned char t8(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_900]] to i8*) +#line 900 + x++; + return x; +} +// CHECK-LABEL: @t9( +unsigned char t9(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1000]] to i8*) +#line 1000 + x--; + return x; +} +// CHECK-LABEL: @t10( +unsigned char t10(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1100]] to i8*) +#line 1100 + ++x; + return x; +} +// CHECK-LABEL: @t11( +unsigned char t11(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1200]] to i8*) +#line 1200 + --x; + return x; +} + +// CHECK-LABEL: @t12( +signed char t12(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1300]] to i8*) +#line 1300 + x++; + return x; +} +// CHECK-LABEL: @t13( +signed char t13(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1400]] to i8*) +#line 1400 + x--; + return x; +} +// CHECK-LABEL: @t14( +signed char t14(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1500]] to i8*) +#line 1500 + ++x; + return x; +} +// CHECK-LABEL: @t15( +signed char t15(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1600]] to i8*) +#line 1600 + --x; + return x; +} diff --git a/clang/test/CodeGen/catch-implicit-integer-sign-changes-incdec.c b/clang/test/CodeGen/catch-implicit-integer-sign-changes-incdec.c new file mode 100644 index 00000000000..3fe23ecbd8d --- /dev/null +++ b/clang/test/CodeGen/catch-implicit-integer-sign-changes-incdec.c @@ -0,0 +1,307 @@ +// RUN: %clang_cc1 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefixes=CHECK,CHECK-NOSANITIZE + +// RUN: %clang_cc1 -fsanitize=implicit-integer-sign-change -fno-sanitize-recover=implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER,CHECK-SANITIZE-UNREACHABLE +// RUN: %clang_cc1 -fsanitize=implicit-integer-sign-change -fsanitize-recover=implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER +// RUN: %clang_cc1 -fsanitize=implicit-integer-sign-change -fsanitize-trap=implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-TRAP,CHECK-SANITIZE-UNREACHABLE + +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[INT:.*]] = {{.*}} c"'int'\00" } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[UNSIGNED_SHORT:.*]] = {{.*}} c"'unsigned short'\00" } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_100:.*]] = {{.*}}, i32 100, i32 11 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 3 } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_200:.*]] = {{.*}}, i32 200, i32 11 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 3 } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_300:.*]] = {{.*}}, i32 300, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 3 } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_400:.*]] = {{.*}}, i32 400, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 3 } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[SHORT:.*]] = {{.*}} c"'short'\00" } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_500:.*]] = {{.*}}, i32 500, i32 11 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 3 } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_600:.*]] = {{.*}}, i32 600, i32 11 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 3 } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_700:.*]] = {{.*}}, i32 700, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 3 } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_800:.*]] = {{.*}}, i32 800, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 3 } + +unsigned short t0(unsigned short x) { +// CHECK-NOSANITIZE-LABEL: @t0( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], 1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[X_RELOADED]] +// +// CHECK-SANITIZE-LABEL: @t0( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = zext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], 1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[SRC_INC_NEGATIVITYCHECK:%.*]] = icmp slt i32 [[INC]], 0, !nosanitize !2 +// CHECK-SANITIZE-NEXT: [[SIGNCHANGECHECK:%.*]] = icmp eq i1 [[SRC_INC_NEGATIVITYCHECK]], false, !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_100]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_100]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_RELOADED]] +#line 100 + return x++; +} +unsigned short t1(unsigned short x) { +// CHECK-NOSANITIZE-LABEL: @t1( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], -1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[X_RELOADED]] +// +// CHECK-SANITIZE-LABEL: @t1( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = zext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], -1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[SRC_INC_NEGATIVITYCHECK:%.*]] = icmp slt i32 [[INC]], 0, !nosanitize !2 +// CHECK-SANITIZE-NEXT: [[SIGNCHANGECHECK:%.*]] = icmp eq i1 [[SRC_INC_NEGATIVITYCHECK]], false, !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_200]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_200]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_RELOADED]] +#line 200 + return x--; +} + +unsigned short t2(unsigned short x) { +// CHECK-NOSANITIZE-LABEL: @t2( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], 1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[INC]] +// +// CHECK-SANITIZE-LABEL: @t2( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = zext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], 1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[SRC_INC_NEGATIVITYCHECK:%.*]] = icmp slt i32 [[INC]], 0, !nosanitize !2 +// CHECK-SANITIZE-NEXT: [[SIGNCHANGECHECK:%.*]] = icmp eq i1 [[SRC_INC_NEGATIVITYCHECK]], false, !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_300]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_300]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_PROMOTED_DEMOTED]] +#line 300 + return ++x; +} + +unsigned short t3(unsigned short x) { +// CHECK-NOSANITIZE-LABEL: @t3( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], -1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[INC]] +// +// CHECK-SANITIZE-LABEL: @t3( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = zext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], -1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[SRC_INC_NEGATIVITYCHECK:%.*]] = icmp slt i32 [[INC]], 0, !nosanitize !2 +// CHECK-SANITIZE-NEXT: [[SIGNCHANGECHECK:%.*]] = icmp eq i1 [[SRC_INC_NEGATIVITYCHECK]], false, !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_400]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_400]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_PROMOTED_DEMOTED]] +#line 400 + return --x; +} + +signed short t4(signed short x) { +// CHECK-NOSANITIZE-LABEL: @t4( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], 1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[X_RELOADED]] +// +// CHECK-SANITIZE-LABEL: @t4( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = sext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], 1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[SRC_INC_NEGATIVITYCHECK:%.*]] = icmp slt i32 [[INC]], 0, !nosanitize !2 +// CHECK-SANITIZE-NEXT: [[DST_NEGATIVITYCHECK:%.*]] = icmp slt i16 [[X_PROMOTED_DEMOTED]], 0, !nosanitize !2 +// CHECK-SANITIZE-NEXT: [[SIGNCHANGECHECK:%.*]] = icmp eq i1 [[SRC_INC_NEGATIVITYCHECK]], [[DST_NEGATIVITYCHECK]], !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_500]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_500]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_RELOADED]] +#line 500 + return x++; +} +signed short t5(signed short x) { +// CHECK-NOSANITIZE-LABEL: @t5( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], -1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[X_RELOADED]] +// +// CHECK-SANITIZE-LABEL: @t5( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = sext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], -1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[SRC_INC_NEGATIVITYCHECK:%.*]] = icmp slt i32 [[INC]], 0, !nosanitize !2 +// CHECK-SANITIZE-NEXT: [[DST_NEGATIVITYCHECK:%.*]] = icmp slt i16 [[X_PROMOTED_DEMOTED]], 0, !nosanitize !2 +// CHECK-SANITIZE-NEXT: [[SIGNCHANGECHECK:%.*]] = icmp eq i1 [[SRC_INC_NEGATIVITYCHECK]], [[DST_NEGATIVITYCHECK]], !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_600]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_600]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_RELOADED]] +#line 600 + return x--; +} + +signed short t6(signed short x) { +// CHECK-NOSANITIZE-LABEL: @t6( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], 1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[INC]] +// +// CHECK-SANITIZE-LABEL: @t6( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = sext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], 1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[SRC_INC_NEGATIVITYCHECK:%.*]] = icmp slt i32 [[INC]], 0, !nosanitize !2 +// CHECK-SANITIZE-NEXT: [[DST_NEGATIVITYCHECK:%.*]] = icmp slt i16 [[X_PROMOTED_DEMOTED]], 0, !nosanitize !2 +// CHECK-SANITIZE-NEXT: [[SIGNCHANGECHECK:%.*]] = icmp eq i1 [[SRC_INC_NEGATIVITYCHECK]], [[DST_NEGATIVITYCHECK]], !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_700]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_700]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_PROMOTED_DEMOTED]] +#line 700 + return ++x; +} + +signed short t7(signed short x) { +// CHECK-NOSANITIZE-LABEL: @t7( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], -1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[INC]] +// +// CHECK-SANITIZE-LABEL: @t7( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = sext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], -1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[SRC_INC_NEGATIVITYCHECK:%.*]] = icmp slt i32 [[INC]], 0, !nosanitize !2 +// CHECK-SANITIZE-NEXT: [[DST_NEGATIVITYCHECK:%.*]] = icmp slt i16 [[X_PROMOTED_DEMOTED]], 0, !nosanitize !2 +// CHECK-SANITIZE-NEXT: [[SIGNCHANGECHECK:%.*]] = icmp eq i1 [[SRC_INC_NEGATIVITYCHECK]], [[DST_NEGATIVITYCHECK]], !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_800]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [91 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_800]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_PROMOTED_DEMOTED]] +#line 800 + return --x; +} diff --git a/clang/test/CodeGen/catch-implicit-integer-truncations-incdec-basics.c b/clang/test/CodeGen/catch-implicit-integer-truncations-incdec-basics.c new file mode 100644 index 00000000000..6ac2be6d9fd --- /dev/null +++ b/clang/test/CodeGen/catch-implicit-integer-truncations-incdec-basics.c @@ -0,0 +1,139 @@ +// RUN: %clang_cc1 -fsanitize=implicit-unsigned-integer-truncation,implicit-signed-integer-truncation -fsanitize-recover=implicit-unsigned-integer-truncation,implicit-signed-integer-truncation -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK + +// CHECK-DAG: @[[INT:.*]] = {{.*}} c"'int'\00" } +// CHECK-DAG: @[[UNSIGNED_SHORT:.*]] = {{.*}} c"'unsigned short'\00" } +// CHECK-DAG: @[[LINE_100:.*]] = {{.*}}, i32 100, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_200:.*]] = {{.*}}, i32 200, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_300:.*]] = {{.*}}, i32 300, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_400:.*]] = {{.*}}, i32 400, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[SHORT:.*]] = {{.*}} c"'short'\00" } +// CHECK-DAG: @[[LINE_500:.*]] = {{.*}}, i32 500, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_600:.*]] = {{.*}}, i32 600, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_700:.*]] = {{.*}}, i32 700, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_800:.*]] = {{.*}}, i32 800, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[UNSIGNED_CHAR:.*]] = {{.*}} c"'unsigned char'\00" } +// CHECK-DAG: @[[LINE_900:.*]] = {{.*}}, i32 900, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1000:.*]] = {{.*}}, i32 1000, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1100:.*]] = {{.*}}, i32 1100, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1200:.*]] = {{.*}}, i32 1200, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[SIGNED_CHAR:.*]] = {{.*}} c"'signed char'\00" } +// CHECK-DAG: @[[LINE_1300:.*]] = {{.*}}, i32 1300, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1400:.*]] = {{.*}}, i32 1400, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1500:.*]] = {{.*}}, i32 1500, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1600:.*]] = {{.*}}, i32 1600, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } + +// CHECK-LABEL: @t0( +unsigned short t0(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_100]] to i8*) +#line 100 + x++; + return x; +} +// CHECK-LABEL: @t1( +unsigned short t1(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_200]] to i8*) +#line 200 + x--; + return x; +} +// CHECK-LABEL: @t2( +unsigned short t2(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_300]] to i8*) +#line 300 + ++x; + return x; +} +// CHECK-LABEL: @t3( +unsigned short t3(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_400]] to i8*) +#line 400 + --x; + return x; +} + +// CHECK-LABEL: @t4( +signed short t4(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_500]] to i8*) +#line 500 + x++; + return x; +} +// CHECK-LABEL: @t5( +signed short t5(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_600]] to i8*) +#line 600 + x--; + return x; +} +// CHECK-LABEL: @t6( +signed short t6(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_700]] to i8*) +#line 700 + ++x; + return x; +} +// CHECK-LABEL: @t7( +signed short t7(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_800]] to i8*) +#line 800 + --x; + return x; +} + +// CHECK-LABEL: @t8( +unsigned char t8(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_900]] to i8*) +#line 900 + x++; + return x; +} +// CHECK-LABEL: @t9( +unsigned char t9(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1000]] to i8*) +#line 1000 + x--; + return x; +} +// CHECK-LABEL: @t10( +unsigned char t10(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1100]] to i8*) +#line 1100 + ++x; + return x; +} +// CHECK-LABEL: @t11( +unsigned char t11(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1200]] to i8*) +#line 1200 + --x; + return x; +} + +// CHECK-LABEL: @t12( +signed char t12(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1300]] to i8*) +#line 1300 + x++; + return x; +} +// CHECK-LABEL: @t13( +signed char t13(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1400]] to i8*) +#line 1400 + x--; + return x; +} +// CHECK-LABEL: @t14( +signed char t14(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1500]] to i8*) +#line 1500 + ++x; + return x; +} +// CHECK-LABEL: @t15( +signed char t15(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1600]] to i8*) +#line 1600 + --x; + return x; +} diff --git a/clang/test/CodeGen/catch-implicit-signed-integer-truncations-incdec-basics.c b/clang/test/CodeGen/catch-implicit-signed-integer-truncations-incdec-basics.c new file mode 100644 index 00000000000..b7e438c7229 --- /dev/null +++ b/clang/test/CodeGen/catch-implicit-signed-integer-truncations-incdec-basics.c @@ -0,0 +1,139 @@ +// RUN: %clang_cc1 -fsanitize=implicit-signed-integer-truncation -fsanitize-recover=implicit-signed-integer-truncation -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK + +// CHECK-DAG: @[[INT:.*]] = {{.*}} c"'int'\00" } +// CHECK-DAG: @[[UNSIGNED_SHORT:.*]] = {{.*}} c"'unsigned short'\00" } +// CHECK-DAG: @[[LINE_100:.*]] = {{.*}}, i32 100, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_200:.*]] = {{.*}}, i32 200, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_300:.*]] = {{.*}}, i32 300, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_400:.*]] = {{.*}}, i32 400, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-DAG: @[[SHORT:.*]] = {{.*}} c"'short'\00" } +// CHECK-DAG: @[[LINE_500:.*]] = {{.*}}, i32 500, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_600:.*]] = {{.*}}, i32 600, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_700:.*]] = {{.*}}, i32 700, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[LINE_800:.*]] = {{.*}}, i32 800, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-DAG: @[[UNSIGNED_CHAR:.*]] = {{.*}} c"'unsigned char'\00" } +// CHECK-DAG: @[[LINE_900:.*]] = {{.*}}, i32 900, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1000:.*]] = {{.*}}, i32 1000, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1100:.*]] = {{.*}}, i32 1100, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1200:.*]] = {{.*}}, i32 1200, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[SIGNED_CHAR:.*]] = {{.*}} c"'signed char'\00" } +// CHECK-DAG: @[[LINE_1300:.*]] = {{.*}}, i32 1300, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1400:.*]] = {{.*}}, i32 1400, i32 4 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1500:.*]] = {{.*}}, i32 1500, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } +// CHECK-DAG: @[[LINE_1600:.*]] = {{.*}}, i32 1600, i32 3 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 2 } + +// CHECK-LABEL: @t0( +unsigned short t0(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_100]] to i8*) +#line 100 + x++; + return x; +} +// CHECK-LABEL: @t1( +unsigned short t1(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_200]] to i8*) +#line 200 + x--; + return x; +} +// CHECK-LABEL: @t2( +unsigned short t2(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_300]] to i8*) +#line 300 + ++x; + return x; +} +// CHECK-LABEL: @t3( +unsigned short t3(unsigned short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_400]] to i8*) +#line 400 + --x; + return x; +} + +// CHECK-LABEL: @t4( +signed short t4(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_500]] to i8*) +#line 500 + x++; + return x; +} +// CHECK-LABEL: @t5( +signed short t5(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_600]] to i8*) +#line 600 + x--; + return x; +} +// CHECK-LABEL: @t6( +signed short t6(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_700]] to i8*) +#line 700 + ++x; + return x; +} +// CHECK-LABEL: @t7( +signed short t7(signed short x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_800]] to i8*) +#line 800 + --x; + return x; +} + +// CHECK-LABEL: @t8( +unsigned char t8(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_900]] to i8*) +#line 900 + x++; + return x; +} +// CHECK-LABEL: @t9( +unsigned char t9(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1000]] to i8*) +#line 1000 + x--; + return x; +} +// CHECK-LABEL: @t10( +unsigned char t10(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1100]] to i8*) +#line 1100 + ++x; + return x; +} +// CHECK-LABEL: @t11( +unsigned char t11(unsigned char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1200]] to i8*) +#line 1200 + --x; + return x; +} + +// CHECK-LABEL: @t12( +signed char t12(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1300]] to i8*) +#line 1300 + x++; + return x; +} +// CHECK-LABEL: @t13( +signed char t13(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1400]] to i8*) +#line 1400 + x--; + return x; +} +// CHECK-LABEL: @t14( +signed char t14(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1500]] to i8*) +#line 1500 + ++x; + return x; +} +// CHECK-LABEL: @t15( +signed char t15(signed char x) { + // CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1600]] to i8*) +#line 1600 + --x; + return x; +} diff --git a/clang/test/CodeGen/catch-implicit-signed-integer-truncations-incdec.c b/clang/test/CodeGen/catch-implicit-signed-integer-truncations-incdec.c new file mode 100644 index 00000000000..5e602d60faf --- /dev/null +++ b/clang/test/CodeGen/catch-implicit-signed-integer-truncations-incdec.c @@ -0,0 +1,303 @@ +// RUN: %clang_cc1 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefixes=CHECK,CHECK-NOSANITIZE + +// RUN: %clang_cc1 -fsanitize=implicit-signed-integer-truncation -fno-sanitize-recover=implicit-signed-integer-truncation -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER,CHECK-SANITIZE-UNREACHABLE +// RUN: %clang_cc1 -fsanitize=implicit-signed-integer-truncation -fsanitize-recover=implicit-signed-integer-truncation -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER +// RUN: %clang_cc1 -fsanitize=implicit-signed-integer-truncation -fsanitize-trap=implicit-signed-integer-truncation -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-TRAP,CHECK-SANITIZE-UNREACHABLE + +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[INT:.*]] = {{.*}} c"'int'\00" } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[UNSIGNED_SHORT:.*]] = {{.*}} c"'unsigned short'\00" } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_100:.*]] = {{.*}}, i32 100, i32 11 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_200:.*]] = {{.*}}, i32 200, i32 11 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_300:.*]] = {{.*}}, i32 300, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_400:.*]] = {{.*}}, i32 400, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[SHORT:.*]] = {{.*}} c"'short'\00" } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_500:.*]] = {{.*}}, i32 500, i32 11 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_600:.*]] = {{.*}}, i32 600, i32 11 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_700:.*]] = {{.*}}, i32 700, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } +// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_800:.*]] = {{.*}}, i32 800, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 } + +unsigned short t0(unsigned short x) { +// CHECK-NOSANITIZE-LABEL: @t0( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], 1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[X_RELOADED]] +// +// CHECK-SANITIZE-LABEL: @t0( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = zext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], 1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize +// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_100]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_100]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_RELOADED]] +#line 100 + return x++; +} +unsigned short t1(unsigned short x) { +// CHECK-NOSANITIZE-LABEL: @t1( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], -1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[X_RELOADED]] +// +// CHECK-SANITIZE-LABEL: @t1( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = zext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], -1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize +// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_200]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_200]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_RELOADED]] +#line 200 + return x--; +} + +unsigned short t2(unsigned short x) { +// CHECK-NOSANITIZE-LABEL: @t2( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], 1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[INC]] +// +// CHECK-SANITIZE-LABEL: @t2( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = zext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], 1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize +// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_300]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_300]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_PROMOTED_DEMOTED]] +#line 300 + return ++x; +} + +unsigned short t3(unsigned short x) { +// CHECK-NOSANITIZE-LABEL: @t3( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], -1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[INC]] +// +// CHECK-SANITIZE-LABEL: @t3( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = zext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], -1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize +// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_400]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [17 x i8] }*, i8 }* @[[LINE_400]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_PROMOTED_DEMOTED]] +#line 400 + return --x; +} + +signed short t4(signed short x) { +// CHECK-NOSANITIZE-LABEL: @t4( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], 1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[X_RELOADED]] +// +// CHECK-SANITIZE-LABEL: @t4( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = sext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], 1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = sext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize +// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_500]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_500]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_RELOADED]] +#line 500 + return x++; +} +signed short t5(signed short x) { +// CHECK-NOSANITIZE-LABEL: @t5( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], -1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[X_RELOADED]] +// +// CHECK-SANITIZE-LABEL: @t5( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = sext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], -1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = sext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize +// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_600]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_600]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_RELOADED]] +#line 600 + return x--; +} + +signed short t6(signed short x) { +// CHECK-NOSANITIZE-LABEL: @t6( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], 1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[INC]] +// +// CHECK-SANITIZE-LABEL: @t6( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = sext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], 1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = sext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize +// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_700]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_700]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_PROMOTED_DEMOTED]] +#line 700 + return ++x; +} + +signed short t7(signed short x) { +// CHECK-NOSANITIZE-LABEL: @t7( +// CHECK-NOSANITIZE-NEXT: entry: +// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], -1 +// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2 +// CHECK-NOSANITIZE-NEXT: ret i16 [[INC]] +// +// CHECK-SANITIZE-LABEL: @t7( +// CHECK-SANITIZE-NEXT: entry: +// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2 +// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = sext i16 [[X_RELOADED]] to i32 +// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], -1 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16 +// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = sext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize +// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize +// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize +// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]: +// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize +// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize +// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_800]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ { [97 x i8]*, i32, i32 }, { i16, i16, [6 x i8] }*, { i16, i16, [8 x i8] }*, i8 }* @[[LINE_800]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize +// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize +// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize +// CHECK-SANITIZE: [[CONT]]: +// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2 +// CHECK-SANITIZE-NEXT: ret i16 [[X_PROMOTED_DEMOTED]] +#line 800 + return --x; +} diff --git a/clang/test/CodeGen/catch-implicit-unsigned-integer-truncations-incdec-basics.c b/clang/test/CodeGen/catch-implicit-unsigned-integer-truncations-incdec-basics.c new file mode 100644 index 00000000000..7ad12314f3d --- /dev/null +++ b/clang/test/CodeGen/catch-implicit-unsigned-integer-truncations-incdec-basics.c @@ -0,0 +1,101 @@ +// RUN: %clang_cc1 -fsanitize=implicit-unsigned-integer-truncation -fsanitize-recover=implicit-unsigned-integer-truncation -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK + +// CHECK-LABEL: @t0( +unsigned short t0(unsigned short x) { +#line 100 + x++; + return x; +} +// CHECK-LABEL: @t1( +unsigned short t1(unsigned short x) { +#line 200 + x--; + return x; +} +// CHECK-LABEL: @t2( +unsigned short t2(unsigned short x) { +#line 300 + ++x; + return x; +} +// CHECK-LABEL: @t3( +unsigned short t3(unsigned short x) { +#line 400 + --x; + return x; +} + +// CHECK-LABEL: @t4( +signed short t4(signed short x) { +#line 500 + x++; + return x; +} +// CHECK-LABEL: @t5( +signed short t5(signed short x) { +#line 600 + x--; + return x; +} +// CHECK-LABEL: @t6( +signed short t6(signed short x) { +#line 700 + ++x; + return x; +} +// CHECK-LABEL: @t7( +signed short t7(signed short x) { +#line 800 + --x; + return x; +} + +// CHECK-LABEL: @t8( +unsigned char t8(unsigned char x) { +#line 900 + x++; + return x; +} +// CHECK-LABEL: @t9( +unsigned char t9(unsigned char x) { +#line 1000 + x--; + return x; +} +// CHECK-LABEL: @t10( +unsigned char t10(unsigned char x) { +#line 1100 + ++x; + return x; +} +// CHECK-LABEL: @t11( +unsigned char t11(unsigned char x) { +#line 1200 + --x; + return x; +} + +// CHECK-LABEL: @t12( +signed char t12(signed char x) { +#line 1300 + x++; + return x; +} +// CHECK-LABEL: @t13( +signed char t13(signed char x) { +#line 1400 + x--; + return x; +} +// CHECK-LABEL: @t14( +signed char t14(signed char x) { +#line 1500 + ++x; + return x; +} +// CHECK-LABEL: @t15( +signed char t15(signed char x) { +#line 1600 + --x; + return x; +} |
