diff options
Diffstat (limited to 'llvm/test/Transforms')
16 files changed, 904 insertions, 0 deletions
diff --git a/llvm/test/Transforms/WholeProgramDevirt/bad-read-from-vtable.ll b/llvm/test/Transforms/WholeProgramDevirt/bad-read-from-vtable.ll new file mode 100644 index 00000000000..9402076adf0 --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/bad-read-from-vtable.ll @@ -0,0 +1,64 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +@vt = global [2 x i8*] [i8* zeroinitializer, i8* bitcast (void (i8*)* @vf to i8*)] + +define void @vf(i8* %this) { + ret void +} + +; CHECK: define void @unaligned +define void @unaligned(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr i8, i8* %vtablei8, i32 1 + %fptrptr_casted = bitcast i8* %fptrptr to i8** + %fptr = load i8*, i8** %fptrptr_casted + %fptr_casted = bitcast i8* %fptr to void (i8*)* + ; CHECK: call void % + call void %fptr_casted(i8* %obj) + ret void +} + +; CHECK: define void @outofbounds +define void @outofbounds(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr i8, i8* %vtablei8, i32 16 + %fptrptr_casted = bitcast i8* %fptrptr to i8** + %fptr = load i8*, i8** %fptrptr_casted + %fptr_casted = bitcast i8* %fptr to void (i8*)* + ; CHECK: call void % + call void %fptr_casted(i8* %obj) + ret void +} + +; CHECK: define void @nonfunction +define void @nonfunction(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr i8, i8* %vtablei8, i32 0 + %fptrptr_casted = bitcast i8* %fptrptr to i8** + %fptr = load i8*, i8** %fptrptr_casted + %fptr_casted = bitcast i8* %fptr to void (i8*)* + ; CHECK: call void % + call void %fptr_casted(i8* %obj) + ret void +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset", [2 x i8*]* @vt, i32 0} +!llvm.bitsets = !{!0} diff --git a/llvm/test/Transforms/WholeProgramDevirt/constant-arg.ll b/llvm/test/Transforms/WholeProgramDevirt/constant-arg.ll new file mode 100644 index 00000000000..ea72d16930a --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/constant-arg.ll @@ -0,0 +1,79 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +; CHECK: private constant { [8 x i8], [1 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\00\00\00\00\01", [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf1 to i8*)], [0 x i8] zeroinitializer } +; CHECK: private constant { [8 x i8], [1 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\00\00\00\00\02", [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf2 to i8*)], [0 x i8] zeroinitializer } +; CHECK: private constant { [8 x i8], [1 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\00\00\00\00\01", [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf4 to i8*)], [0 x i8] zeroinitializer } +; CHECK: private constant { [8 x i8], [1 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\00\00\00\00\02", [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf8 to i8*)], [0 x i8] zeroinitializer } + +@vt1 = constant [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf1 to i8*)] +@vt2 = constant [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf2 to i8*)] +@vt4 = constant [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf4 to i8*)] +@vt8 = constant [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf8 to i8*)] + +define i1 @vf1(i8* %this, i32 %arg) readnone { + %and = and i32 %arg, 1 + %cmp = icmp ne i32 %and, 0 + ret i1 %cmp +} + +define i1 @vf2(i8* %this, i32 %arg) readnone { + %and = and i32 %arg, 2 + %cmp = icmp ne i32 %and, 0 + ret i1 %cmp +} + +define i1 @vf4(i8* %this, i32 %arg) readnone { + %and = and i32 %arg, 4 + %cmp = icmp ne i32 %and, 0 + ret i1 %cmp +} + +define i1 @vf8(i8* %this, i32 %arg) readnone { + %and = and i32 %arg, 8 + %cmp = icmp ne i32 %and, 0 + ret i1 %cmp +} + +; CHECK: define i1 @call1 +define i1 @call1(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i1 (i8*, i32)* + ; CHECK: getelementptr {{.*}} -1 + ; CHECK: and {{.*}}, 1 + %result = call i1 %fptr_casted(i8* %obj, i32 5) + ret i1 %result +} + +; CHECK: define i1 @call2 +define i1 @call2(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i1 (i8*, i32)* + ; CHECK: getelementptr {{.*}} -1 + ; CHECK: and {{.*}}, 2 + %result = call i1 %fptr_casted(i8* %obj, i32 10) + ret i1 %result +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset", [1 x i8*]* @vt1, i32 0} +!1 = !{!"bitset", [1 x i8*]* @vt2, i32 0} +!2 = !{!"bitset", [1 x i8*]* @vt4, i32 0} +!3 = !{!"bitset", [1 x i8*]* @vt8, i32 0} +!llvm.bitsets = !{!0, !1, !2, !3} diff --git a/llvm/test/Transforms/WholeProgramDevirt/devirt-single-impl.ll b/llvm/test/Transforms/WholeProgramDevirt/devirt-single-impl.ll new file mode 100644 index 00000000000..85041551f67 --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/devirt-single-impl.ll @@ -0,0 +1,33 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +@vt1 = constant [1 x i8*] [i8* bitcast (void (i8*)* @vf to i8*)] +@vt2 = constant [1 x i8*] [i8* bitcast (void (i8*)* @vf to i8*)] + +define void @vf(i8* %this) { + ret void +} + +; CHECK: define void @call +define void @call(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to void (i8*)* + ; CHECK: call void @vf( + call void %fptr_casted(i8* %obj) + ret void +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset", [1 x i8*]* @vt1, i32 0} +!1 = !{!"bitset", [1 x i8*]* @vt2, i32 0} +!llvm.bitsets = !{!0, !1} diff --git a/llvm/test/Transforms/WholeProgramDevirt/non-array-vtable.ll b/llvm/test/Transforms/WholeProgramDevirt/non-array-vtable.ll new file mode 100644 index 00000000000..d6befd591e9 --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/non-array-vtable.ll @@ -0,0 +1,31 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +@vt = constant i8* bitcast (void (i8*)* @vf to i8*) + +define void @vf(i8* %this) { + ret void +} + +; CHECK: define void @call +define void @call(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to void (i8*)* + ; CHECK: call void % + call void %fptr_casted(i8* %obj) + ret void +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset", i8** @vt, i32 0} +!llvm.bitsets = !{!0} diff --git a/llvm/test/Transforms/WholeProgramDevirt/non-constant-vtable.ll b/llvm/test/Transforms/WholeProgramDevirt/non-constant-vtable.ll new file mode 100644 index 00000000000..394f5e6c37a --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/non-constant-vtable.ll @@ -0,0 +1,31 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +@vt = global [1 x i8*] [i8* bitcast (void (i8*)* @vf to i8*)] + +define void @vf(i8* %this) { + ret void +} + +; CHECK: define void @call +define void @call(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to void (i8*)* + ; CHECK: call void % + call void %fptr_casted(i8* %obj) + ret void +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset", [1 x i8*]* @vt, i32 0} +!llvm.bitsets = !{!0} diff --git a/llvm/test/Transforms/WholeProgramDevirt/uniform-retval-invoke.ll b/llvm/test/Transforms/WholeProgramDevirt/uniform-retval-invoke.ll new file mode 100644 index 00000000000..d34a529daa4 --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/uniform-retval-invoke.ll @@ -0,0 +1,45 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +@vt1 = constant [1 x i8*] [i8* bitcast (i32 (i8*)* @vf1 to i8*)] +@vt2 = constant [1 x i8*] [i8* bitcast (i32 (i8*)* @vf2 to i8*)] + +define i32 @vf1(i8* %this) readnone { + ret i32 123 +} + +define i32 @vf2(i8* %this) readnone { + ret i32 123 +} + +; CHECK: define i32 @call +define i32 @call(i8* %obj) personality i8* undef { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i32 (i8*)* + ; CHECK: br label %[[RET:[0-9A-Za-z]*]] + %result = invoke i32 %fptr_casted(i8* %obj) to label %ret unwind label %unwind + +unwind: + %x = landingpad i32 cleanup + unreachable + +ret: + ; CHECK: [[RET]]: + ; CHECK-NEXT: ret i32 123 + ret i32 %result +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset", [1 x i8*]* @vt1, i32 0} +!1 = !{!"bitset", [1 x i8*]* @vt2, i32 0} +!llvm.bitsets = !{!0, !1} diff --git a/llvm/test/Transforms/WholeProgramDevirt/uniform-retval.ll b/llvm/test/Transforms/WholeProgramDevirt/uniform-retval.ll new file mode 100644 index 00000000000..f6433c32aba --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/uniform-retval.ll @@ -0,0 +1,38 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +@vt1 = constant [1 x i8*] [i8* bitcast (i32 (i8*)* @vf1 to i8*)] +@vt2 = constant [1 x i8*] [i8* bitcast (i32 (i8*)* @vf2 to i8*)] + +define i32 @vf1(i8* %this) readnone { + ret i32 123 +} + +define i32 @vf2(i8* %this) readnone { + ret i32 123 +} + +; CHECK: define i32 @call +define i32 @call(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i32 (i8*)* + %result = call i32 %fptr_casted(i8* %obj) + ; CHECK-NOT: call + ; CHECK: ret i32 123 + ret i32 %result +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset", [1 x i8*]* @vt1, i32 0} +!1 = !{!"bitset", [1 x i8*]* @vt2, i32 0} +!llvm.bitsets = !{!0, !1} diff --git a/llvm/test/Transforms/WholeProgramDevirt/unique-retval.ll b/llvm/test/Transforms/WholeProgramDevirt/unique-retval.ll new file mode 100644 index 00000000000..41aa3e59e8a --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/unique-retval.ll @@ -0,0 +1,61 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +@vt1 = constant [1 x i8*] [i8* bitcast (i1 (i8*)* @vf0 to i8*)] +@vt2 = constant [1 x i8*] [i8* bitcast (i1 (i8*)* @vf0 to i8*)] +@vt3 = constant [1 x i8*] [i8* bitcast (i1 (i8*)* @vf1 to i8*)] +@vt4 = constant [1 x i8*] [i8* bitcast (i1 (i8*)* @vf1 to i8*)] + +define i1 @vf0(i8* %this) readnone { + ret i1 0 +} + +define i1 @vf1(i8* %this) readnone { + ret i1 1 +} + +; CHECK: define i1 @call1 +define i1 @call1(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + ; CHECK: [[VT1:%[^ ]*]] = bitcast [1 x i8*]* {{.*}} to i8* + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset1") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i1 (i8*)* + ; CHECK: [[RES1:%[^ ]*]] = icmp eq i8* [[VT1]], bitcast ([1 x i8*]* @vt3 to i8*) + %result = call i1 %fptr_casted(i8* %obj) + ; CHECK: ret i1 [[RES1]] + ret i1 %result +} + +; CHECK: define i1 @call2 +define i1 @call2(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + ; CHECK: [[VT2:%[^ ]*]] = bitcast [1 x i8*]* {{.*}} to i8* + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset2") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i1 (i8*)* + ; CHECK: [[RES1:%[^ ]*]] = icmp ne i8* [[VT1]], bitcast ([1 x i8*]* @vt2 to i8*) + %result = call i1 %fptr_casted(i8* %obj) + ret i1 %result +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset1", [1 x i8*]* @vt1, i32 0} +!1 = !{!"bitset1", [1 x i8*]* @vt2, i32 0} +!2 = !{!"bitset1", [1 x i8*]* @vt3, i32 0} +!3 = !{!"bitset2", [1 x i8*]* @vt2, i32 0} +!4 = !{!"bitset2", [1 x i8*]* @vt3, i32 0} +!5 = !{!"bitset2", [1 x i8*]* @vt4, i32 0} +!llvm.bitsets = !{!0, !1, !2, !3, !4, !5} diff --git a/llvm/test/Transforms/WholeProgramDevirt/vcp-accesses-memory.ll b/llvm/test/Transforms/WholeProgramDevirt/vcp-accesses-memory.ll new file mode 100644 index 00000000000..f963d18e164 --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/vcp-accesses-memory.ll @@ -0,0 +1,37 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +@vt1 = global [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf1 to i8*)] +@vt2 = global [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf2 to i8*)] + +define i32 @vf1(i8* %this, i32 %arg) { + ret i32 %arg +} + +define i32 @vf2(i8* %this, i32 %arg) { + ret i32 %arg +} + +; CHECK: define i32 @call +define i32 @call(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i32 (i8*, i32)* + ; CHECK: call i32 % + %result = call i32 %fptr_casted(i8* %obj, i32 1) + ret i32 %result +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset", [1 x i8*]* @vt1, i32 0} +!1 = !{!"bitset", [1 x i8*]* @vt2, i32 0} +!llvm.bitsets = !{!0} diff --git a/llvm/test/Transforms/WholeProgramDevirt/vcp-no-this.ll b/llvm/test/Transforms/WholeProgramDevirt/vcp-no-this.ll new file mode 100644 index 00000000000..28d39e169e8 --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/vcp-no-this.ll @@ -0,0 +1,37 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +@vt1 = global [1 x i8*] [i8* bitcast (i32 ()* @vf1 to i8*)] +@vt2 = global [1 x i8*] [i8* bitcast (i32 ()* @vf2 to i8*)] + +define i32 @vf1() readnone { + ret i32 1 +} + +define i32 @vf2() readnone { + ret i32 2 +} + +; CHECK: define i32 @call +define i32 @call(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i32 ()* + ; CHECK: call i32 % + %result = call i32 %fptr_casted() + ret i32 %result +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset", [1 x i8*]* @vt1, i32 0} +!1 = !{!"bitset", [1 x i8*]* @vt2, i32 0} +!llvm.bitsets = !{!0} diff --git a/llvm/test/Transforms/WholeProgramDevirt/vcp-non-constant-arg.ll b/llvm/test/Transforms/WholeProgramDevirt/vcp-non-constant-arg.ll new file mode 100644 index 00000000000..c056832de6d --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/vcp-non-constant-arg.ll @@ -0,0 +1,37 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +@vt1 = global [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf1 to i8*)] +@vt2 = global [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf2 to i8*)] + +define i32 @vf1(i8* %this, i32 %arg) readnone { + ret i32 %arg +} + +define i32 @vf2(i8* %this, i32 %arg) readnone { + ret i32 %arg +} + +; CHECK: define void @call +define void @call(i8* %obj, i32 %arg) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i32 (i8*, i32)* + ; CHECK: call i32 % + %result = call i32 %fptr_casted(i8* %obj, i32 %arg) + ret void +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset", [1 x i8*]* @vt1, i32 0} +!1 = !{!"bitset", [1 x i8*]* @vt2, i32 0} +!llvm.bitsets = !{!0} diff --git a/llvm/test/Transforms/WholeProgramDevirt/vcp-too-wide-ints.ll b/llvm/test/Transforms/WholeProgramDevirt/vcp-too-wide-ints.ll new file mode 100644 index 00000000000..4dbbc1b458b --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/vcp-too-wide-ints.ll @@ -0,0 +1,37 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +@vt1 = global [1 x i8*] [i8* bitcast (i128 (i8*, i128)* @vf1 to i8*)] +@vt2 = global [1 x i8*] [i8* bitcast (i128 (i8*, i128)* @vf2 to i8*)] + +define i128 @vf1(i8* %this, i128 %arg) readnone { + ret i128 %arg +} + +define i128 @vf2(i8* %this, i128 %arg) readnone { + ret i128 %arg +} + +; CHECK: define i128 @call +define i128 @call(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i128 (i8*, i128)* + ; CHECK: call i128 % + %result = call i128 %fptr_casted(i8* %obj, i128 1) + ret i128 %result +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset", [1 x i8*]* @vt1, i32 0} +!1 = !{!"bitset", [1 x i8*]* @vt2, i32 0} +!llvm.bitsets = !{!0} diff --git a/llvm/test/Transforms/WholeProgramDevirt/vcp-type-mismatch.ll b/llvm/test/Transforms/WholeProgramDevirt/vcp-type-mismatch.ll new file mode 100644 index 00000000000..6dff4d17a2b --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/vcp-type-mismatch.ll @@ -0,0 +1,67 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +@vt1 = global [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf1 to i8*)] +@vt2 = global [1 x i8*] [i8* bitcast (i32 (i8*, i32)* @vf2 to i8*)] + +define i32 @vf1(i8* %this, i32 %arg) readnone { + ret i32 %arg +} + +define i32 @vf2(i8* %this, i32 %arg) readnone { + ret i32 %arg +} + +; CHECK: define i32 @bad_arg_type +define i32 @bad_arg_type(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i32 (i8*, i64)* + ; CHECK: call i32 % + %result = call i32 %fptr_casted(i8* %obj, i64 1) + ret i32 %result +} + +; CHECK: define i32 @bad_arg_count +define i32 @bad_arg_count(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i32 (i8*, i64, i64)* + ; CHECK: call i32 % + %result = call i32 %fptr_casted(i8* %obj, i64 1, i64 2) + ret i32 %result +} + +; CHECK: define i64 @bad_return_type +define i64 @bad_return_type(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i64 (i8*, i32)* + ; CHECK: call i64 % + %result = call i64 %fptr_casted(i8* %obj, i32 1) + ret i64 %result +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset", [1 x i8*]* @vt1, i32 0} +!1 = !{!"bitset", [1 x i8*]* @vt2, i32 0} +!llvm.bitsets = !{!0} diff --git a/llvm/test/Transforms/WholeProgramDevirt/vcp-uses-this.ll b/llvm/test/Transforms/WholeProgramDevirt/vcp-uses-this.ll new file mode 100644 index 00000000000..39a63c62f44 --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/vcp-uses-this.ll @@ -0,0 +1,39 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +@vt1 = global [1 x i8*] [i8* bitcast (i32 (i8*)* @vf1 to i8*)] +@vt2 = global [1 x i8*] [i8* bitcast (i32 (i8*)* @vf2 to i8*)] + +define i32 @vf1(i8* %this) readnone { + %this_int = ptrtoint i8* %this to i32 + ret i32 %this_int +} + +define i32 @vf2(i8* %this) readnone { + %this_int = ptrtoint i8* %this to i32 + ret i32 %this_int +} + +; CHECK: define i32 @call +define i32 @call(i8* %obj) { + %vtableptr = bitcast i8* %obj to [1 x i8*]** + %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr + %vtablei8 = bitcast [1 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i32 (i8*)* + ; CHECK: call i32 % + %result = call i32 %fptr_casted(i8* %obj) + ret i32 %result +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset", [1 x i8*]* @vt1, i32 0} +!1 = !{!"bitset", [1 x i8*]* @vt2, i32 0} +!llvm.bitsets = !{!0} diff --git a/llvm/test/Transforms/WholeProgramDevirt/virtual-const-prop-begin.ll b/llvm/test/Transforms/WholeProgramDevirt/virtual-const-prop-begin.ll new file mode 100644 index 00000000000..3686f8aca3e --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/virtual-const-prop-begin.ll @@ -0,0 +1,137 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +; CHECK: [[VT1DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\01\01\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i32 (i8*)* @vf1i32 to i8*)], [0 x i8] zeroinitializer }, section "vt1sec" +@vt1 = constant [3 x i8*] [ +i8* bitcast (i1 (i8*)* @vf0i1 to i8*), +i8* bitcast (i1 (i8*)* @vf1i1 to i8*), +i8* bitcast (i32 (i8*)* @vf1i32 to i8*) +], section "vt1sec" + +; CHECK: [[VT2DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\02\02\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i32 (i8*)* @vf2i32 to i8*)], [0 x i8] zeroinitializer }{{$}} +@vt2 = constant [3 x i8*] [ +i8* bitcast (i1 (i8*)* @vf1i1 to i8*), +i8* bitcast (i1 (i8*)* @vf0i1 to i8*), +i8* bitcast (i32 (i8*)* @vf2i32 to i8*) +] + +; CHECK: [[VT3DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\01\03\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i32 (i8*)* @vf3i32 to i8*)], [0 x i8] zeroinitializer }{{$}} +@vt3 = constant [3 x i8*] [ +i8* bitcast (i1 (i8*)* @vf0i1 to i8*), +i8* bitcast (i1 (i8*)* @vf1i1 to i8*), +i8* bitcast (i32 (i8*)* @vf3i32 to i8*) +] + +; CHECK: [[VT4DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\02\04\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i32 (i8*)* @vf4i32 to i8*)], [0 x i8] zeroinitializer }{{$}} +@vt4 = constant [3 x i8*] [ +i8* bitcast (i1 (i8*)* @vf1i1 to i8*), +i8* bitcast (i1 (i8*)* @vf0i1 to i8*), +i8* bitcast (i32 (i8*)* @vf4i32 to i8*) +] + +@vt5 = constant [3 x i8*] [ +i8* bitcast (void ()* @__cxa_pure_virtual to i8*), +i8* bitcast (void ()* @__cxa_pure_virtual to i8*), +i8* bitcast (void ()* @__cxa_pure_virtual to i8*) +] + +; CHECK: @vt1 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT1DATA]], i32 0, i32 1) +; CHECK: @vt2 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT2DATA]], i32 0, i32 1) +; CHECK: @vt3 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT3DATA]], i32 0, i32 1) +; CHECK: @vt4 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT4DATA]], i32 0, i32 1) + +define i1 @vf0i1(i8* %this) readnone { + ret i1 0 +} + +define i1 @vf1i1(i8* %this) readnone { + ret i1 1 +} + +define i32 @vf1i32(i8* %this) readnone { + ret i32 1 +} + +define i32 @vf2i32(i8* %this) readnone { + ret i32 2 +} + +define i32 @vf3i32(i8* %this) readnone { + ret i32 3 +} + +define i32 @vf4i32(i8* %this) readnone { + ret i32 4 +} + +; CHECK: define i1 @call1( +define i1 @call1(i8* %obj) { + %vtableptr = bitcast i8* %obj to [3 x i8*]** + %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr + ; CHECK: [[VT1:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* + %vtablei8 = bitcast [3 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i1 (i8*)* + ; CHECK: [[VTGEP1:%[^ ]*]] = getelementptr i8, i8* [[VT1]], i64 -5 + ; CHECK: [[VTLOAD1:%[^ ]*]] = load i8, i8* [[VTGEP1]] + ; CHECK: [[VTAND1:%[^ ]*]] = and i8 [[VTLOAD1]], 2 + ; CHECK: [[VTCMP1:%[^ ]*]] = icmp ne i8 [[VTAND1]], 0 + %result = call i1 %fptr_casted(i8* %obj) + ; CHECK: ret i1 [[VTCMP1]] + ret i1 %result +} + +; CHECK: define i1 @call2( +define i1 @call2(i8* %obj) { + %vtableptr = bitcast i8* %obj to [3 x i8*]** + %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr + ; CHECK: [[VT2:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* + %vtablei8 = bitcast [3 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 1 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i1 (i8*)* + ; CHECK: [[VTGEP2:%[^ ]*]] = getelementptr i8, i8* [[VT2]], i64 -5 + ; CHECK: [[VTLOAD2:%[^ ]*]] = load i8, i8* [[VTGEP2]] + ; CHECK: [[VTAND2:%[^ ]*]] = and i8 [[VTLOAD2]], 1 + ; CHECK: [[VTCMP2:%[^ ]*]] = icmp ne i8 [[VTAND2]], 0 + %result = call i1 %fptr_casted(i8* %obj) + ; CHECK: ret i1 [[VTCMP2]] + ret i1 %result +} + +; CHECK: define i32 @call3( +define i32 @call3(i8* %obj) { + %vtableptr = bitcast i8* %obj to [3 x i8*]** + %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr + ; CHECK: [[VT3:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* + %vtablei8 = bitcast [3 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 2 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i32 (i8*)* + ; CHECK: [[VTGEP3:%[^ ]*]] = getelementptr i8, i8* [[VT3]], i64 -4 + ; CHECK: [[VTBC3:%[^ ]*]] = bitcast i8* [[VTGEP3]] to i32* + ; CHECK: [[VTLOAD3:%[^ ]*]] = load i32, i32* [[VTBC3]] + %result = call i32 %fptr_casted(i8* %obj) + ; CHECK: ret i32 [[VTLOAD3]] + ret i32 %result +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) +declare void @__cxa_pure_virtual() + +!0 = !{!"bitset", [3 x i8*]* @vt1, i32 0} +!1 = !{!"bitset", [3 x i8*]* @vt2, i32 0} +!2 = !{!"bitset", [3 x i8*]* @vt3, i32 0} +!3 = !{!"bitset", [3 x i8*]* @vt4, i32 0} +!4 = !{!"bitset", [3 x i8*]* @vt5, i32 0} +!llvm.bitsets = !{!0, !1, !2, !3, !4} diff --git a/llvm/test/Transforms/WholeProgramDevirt/virtual-const-prop-end.ll b/llvm/test/Transforms/WholeProgramDevirt/virtual-const-prop-end.ll new file mode 100644 index 00000000000..44608cf67a3 --- /dev/null +++ b/llvm/test/Transforms/WholeProgramDevirt/virtual-const-prop-end.ll @@ -0,0 +1,131 @@ +; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s + +target datalayout = "e-p:64:64" +target triple = "x86_64-unknown-linux-gnu" + +; CHECK: [[VT1DATA:@[^ ]*]] = private constant { [0 x i8], [4 x i8*], [8 x i8] } { [0 x i8] zeroinitializer, [4 x i8*] [i8* null, i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i32 (i8*)* @vf1i32 to i8*)], [8 x i8] c"\01\00\00\00\01\00\00\00" } +@vt1 = constant [4 x i8*] [ +i8* null, +i8* bitcast (i1 (i8*)* @vf0i1 to i8*), +i8* bitcast (i1 (i8*)* @vf1i1 to i8*), +i8* bitcast (i32 (i8*)* @vf1i32 to i8*) +] + +; CHECK: [[VT2DATA:@[^ ]*]] = private constant { [0 x i8], [3 x i8*], [8 x i8] } { [0 x i8] zeroinitializer, [3 x i8*] [i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i32 (i8*)* @vf2i32 to i8*)], [8 x i8] c"\02\00\00\00\02\00\00\00" } +@vt2 = constant [3 x i8*] [ +i8* bitcast (i1 (i8*)* @vf1i1 to i8*), +i8* bitcast (i1 (i8*)* @vf0i1 to i8*), +i8* bitcast (i32 (i8*)* @vf2i32 to i8*) +] + +; CHECK: [[VT3DATA:@[^ ]*]] = private constant { [0 x i8], [4 x i8*], [8 x i8] } { [0 x i8] zeroinitializer, [4 x i8*] [i8* null, i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i32 (i8*)* @vf3i32 to i8*)], [8 x i8] c"\03\00\00\00\01\00\00\00" } +@vt3 = constant [4 x i8*] [ +i8* null, +i8* bitcast (i1 (i8*)* @vf0i1 to i8*), +i8* bitcast (i1 (i8*)* @vf1i1 to i8*), +i8* bitcast (i32 (i8*)* @vf3i32 to i8*) +] + +; CHECK: [[VT4DATA:@[^ ]*]] = private constant { [0 x i8], [3 x i8*], [8 x i8] } { [0 x i8] zeroinitializer, [3 x i8*] [i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i32 (i8*)* @vf4i32 to i8*)], [8 x i8] c"\04\00\00\00\02\00\00\00" } +@vt4 = constant [3 x i8*] [ +i8* bitcast (i1 (i8*)* @vf1i1 to i8*), +i8* bitcast (i1 (i8*)* @vf0i1 to i8*), +i8* bitcast (i32 (i8*)* @vf4i32 to i8*) +] + +; CHECK: @vt1 = alias [4 x i8*], getelementptr inbounds ({ [0 x i8], [4 x i8*], [8 x i8] }, { [0 x i8], [4 x i8*], [8 x i8] }* [[VT1DATA]], i32 0, i32 1) +; CHECK: @vt2 = alias [3 x i8*], getelementptr inbounds ({ [0 x i8], [3 x i8*], [8 x i8] }, { [0 x i8], [3 x i8*], [8 x i8] }* [[VT2DATA]], i32 0, i32 1) +; CHECK: @vt3 = alias [4 x i8*], getelementptr inbounds ({ [0 x i8], [4 x i8*], [8 x i8] }, { [0 x i8], [4 x i8*], [8 x i8] }* [[VT3DATA]], i32 0, i32 1) +; CHECK: @vt4 = alias [3 x i8*], getelementptr inbounds ({ [0 x i8], [3 x i8*], [8 x i8] }, { [0 x i8], [3 x i8*], [8 x i8] }* [[VT4DATA]], i32 0, i32 1) + +define i1 @vf0i1(i8* %this) readnone { + ret i1 0 +} + +define i1 @vf1i1(i8* %this) readnone { + ret i1 1 +} + +define i32 @vf1i32(i8* %this) readnone { + ret i32 1 +} + +define i32 @vf2i32(i8* %this) readnone { + ret i32 2 +} + +define i32 @vf3i32(i8* %this) readnone { + ret i32 3 +} + +define i32 @vf4i32(i8* %this) readnone { + ret i32 4 +} + +; CHECK: define i1 @call1( +define i1 @call1(i8* %obj) { + %vtableptr = bitcast i8* %obj to [3 x i8*]** + %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr + ; CHECK: [[VT1:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* + %vtablei8 = bitcast [3 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 0 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i1 (i8*)* + ; CHECK: [[VTGEP1:%[^ ]*]] = getelementptr i8, i8* [[VT1]], i64 28 + ; CHECK: [[VTLOAD1:%[^ ]*]] = load i8, i8* [[VTGEP1]] + ; CHECK: [[VTAND1:%[^ ]*]] = and i8 [[VTLOAD1]], 2 + ; CHECK: [[VTCMP1:%[^ ]*]] = icmp ne i8 [[VTAND1]], 0 + %result = call i1 %fptr_casted(i8* %obj) + ; CHECK: ret i1 [[VTCMP1]] + ret i1 %result +} + +; CHECK: define i1 @call2( +define i1 @call2(i8* %obj) { + %vtableptr = bitcast i8* %obj to [3 x i8*]** + %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr + ; CHECK: [[VT2:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* + %vtablei8 = bitcast [3 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 1 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i1 (i8*)* + ; CHECK: [[VTGEP2:%[^ ]*]] = getelementptr i8, i8* [[VT2]], i64 28 + ; CHECK: [[VTLOAD2:%[^ ]*]] = load i8, i8* [[VTGEP2]] + ; CHECK: [[VTAND2:%[^ ]*]] = and i8 [[VTLOAD2]], 1 + ; CHECK: [[VTCMP2:%[^ ]*]] = icmp ne i8 [[VTAND2]], 0 + %result = call i1 %fptr_casted(i8* %obj) + ; CHECK: ret i1 [[VTCMP2]] + ret i1 %result +} + +; CHECK: define i32 @call3( +define i32 @call3(i8* %obj) { + %vtableptr = bitcast i8* %obj to [3 x i8*]** + %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr + ; CHECK: [[VT3:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* + %vtablei8 = bitcast [3 x i8*]* %vtable to i8* + %p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset") + call void @llvm.assume(i1 %p) + %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 2 + %fptr = load i8*, i8** %fptrptr + %fptr_casted = bitcast i8* %fptr to i32 (i8*)* + ; CHECK: [[VTGEP3:%[^ ]*]] = getelementptr i8, i8* [[VT3]], i64 24 + ; CHECK: [[VTBC3:%[^ ]*]] = bitcast i8* [[VTGEP3]] to i32* + ; CHECK: [[VTLOAD3:%[^ ]*]] = load i32, i32* [[VTBC3]] + %result = call i32 %fptr_casted(i8* %obj) + ; CHECK: ret i32 [[VTLOAD3]] + ret i32 %result +} + +declare i1 @llvm.bitset.test(i8*, metadata) +declare void @llvm.assume(i1) + +!0 = !{!"bitset", [4 x i8*]* @vt1, i32 8} +!1 = !{!"bitset", [3 x i8*]* @vt2, i32 0} +!2 = !{!"bitset", [4 x i8*]* @vt3, i32 8} +!3 = !{!"bitset", [3 x i8*]* @vt4, i32 0} +!llvm.bitsets = !{!0, !1, !2, !3} |
