diff options
Diffstat (limited to 'clang')
| -rw-r--r-- | clang/lib/Basic/Targets.cpp | 3 | ||||
| -rw-r--r-- | clang/test/CodeGen/x86_32-inline-asm.c | 11 |
2 files changed, 11 insertions, 3 deletions
diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp index 7f30ac551b0..b4b8ec007db 100644 --- a/clang/lib/Basic/Targets.cpp +++ b/clang/lib/Basic/Targets.cpp @@ -3084,7 +3084,8 @@ bool X86TargetInfo::validateOperandSize(StringRef Constraint, case 'u': return Size <= 128; case 'x': - return Size <= 256; + // 256-bit ymm registers can be used if target supports AVX. + return Size <= (SSELevel >= AVX ? 256 : 128); } return true; diff --git a/clang/test/CodeGen/x86_32-inline-asm.c b/clang/test/CodeGen/x86_32-inline-asm.c index 25745212e96..c1fba0eee94 100644 --- a/clang/test/CodeGen/x86_32-inline-asm.c +++ b/clang/test/CodeGen/x86_32-inline-asm.c @@ -1,4 +1,5 @@ // RUN: %clang_cc1 -triple i386-apple-darwin9 -verify %s +// RUN: %clang_cc1 -triple i386-apple-darwin9 -target-feature +avx -verify %s // <rdar://problem/12415959> // rdar://problem/11846140 @@ -45,7 +46,6 @@ int func1() { __asm__ volatile("foo1 %0" : : "f" (val256)); // expected-error {{invalid input size for constraint 'f'}} __asm__ volatile("foo1 %0" : : "t" (val256)); // expected-error {{invalid input size for constraint 't'}} __asm__ volatile("foo1 %0" : : "u" (val256)); // expected-error {{invalid input size for constraint 'u'}} - __asm__ volatile("foo1 %0" : : "x" (val256)); // No error. __asm__ volatile("foo1 %0" : : "x" (val512)); // expected-error {{invalid input size for constraint 'x'}} __asm__ volatile("foo1 %0" : "=R" (val)); // expected-error {{invalid output size for constraint '=R'}} @@ -60,6 +60,13 @@ int func1() { __asm__ volatile("foo1 %0" : "=A" (val128)); // expected-error {{invalid output size for constraint '=A'}} __asm__ volatile("foo1 %0" : "=t" (val256)); // expected-error {{invalid output size for constraint '=t'}} __asm__ volatile("foo1 %0" : "=u" (val256)); // expected-error {{invalid output size for constraint '=u'}} - __asm__ volatile("foo1 %0" : "=x" (val256)); // No error. __asm__ volatile("foo1 %0" : "=x" (val512)); // expected-error {{invalid output size for constraint '=x'}} + +#ifdef __AVX__ + __asm__ volatile("foo1 %0" : : "x" (val256)); // No error. + __asm__ volatile("foo1 %0" : "=x" (val256)); // No error. +#else + __asm__ volatile("foo1 %0" : : "x" (val256)); // expected-error {{invalid input size for constraint 'x'}} + __asm__ volatile("foo1 %0" : "=x" (val256)); // expected-error {{invalid output size for constraint '=x'}} +#endif } |
