Author: Matthias Braun Date: 2024-12-03T15:01:28-08:00 New Revision: ea6cdb9a0708330089d583ce20aeaf81eec94ff7
URL: https://github.com/llvm/llvm-project/commit/ea6cdb9a0708330089d583ce20aeaf81eec94ff7 DIFF: https://github.com/llvm/llvm-project/commit/ea6cdb9a0708330089d583ce20aeaf81eec94ff7.diff LOG: allow prefer 256 bit attribute target (#117092) This allows `__attribute__((target("prefer-256-bit")))` / `__attribute__((target("no-prefer-256-bit")))` to create variants of a functions with 256/512 bit vector sizes within the same application. Added: Modified: clang/lib/Basic/Targets/X86.cpp clang/test/CodeGen/attr-target-x86.c Removed: ################################################################################ diff --git a/clang/lib/Basic/Targets/X86.cpp b/clang/lib/Basic/Targets/X86.cpp index 8c31bbe0567416..1b16888a0711b5 100644 --- a/clang/lib/Basic/Targets/X86.cpp +++ b/clang/lib/Basic/Targets/X86.cpp @@ -1162,6 +1162,7 @@ bool X86TargetInfo::isValidFeatureName(StringRef Name) const { .Case("pconfig", true) .Case("pku", true) .Case("popcnt", true) + .Case("prefer-256-bit", true) .Case("prefetchi", true) .Case("prfchw", true) .Case("ptwrite", true) diff --git a/clang/test/CodeGen/attr-target-x86.c b/clang/test/CodeGen/attr-target-x86.c index 75e6dd18be2090..c92aad633082f6 100644 --- a/clang/test/CodeGen/attr-target-x86.c +++ b/clang/test/CodeGen/attr-target-x86.c @@ -18,6 +18,8 @@ // CHECK: define {{.*}}@f_x86_64_v4({{.*}} [[f_x86_64_v4:#[0-9]+]] // CHECK: define {{.*}}@f_avx10_1_256{{.*}} [[f_avx10_1_256:#[0-9]+]] // CHECK: define {{.*}}@f_avx10_1_512{{.*}} [[f_avx10_1_512:#[0-9]+]] +// CHECK: define {{.*}}@f_prefer_256_bit({{.*}} [[f_prefer_256_bit:#[0-9]+]] +// CHECK: define {{.*}}@f_no_prefer_256_bit({{.*}} [[f_no_prefer_256_bit:#[0-9]+]] // CHECK: [[f_default]] = {{.*}}"target-cpu"="i686" "target-features"="+cmov,+cx8,+x87" "tune-cpu"="i686" void f_default(void) {} @@ -103,3 +105,11 @@ void f_avx10_1_256(void) {} // CHECK: [[f_avx10_1_512]] = {{.*}}"target-cpu"="i686" "target-features"="+aes,+avx,+avx10.1-256,+avx10.1-512,+avx2,+avx512bf16,+avx512bitalg,+avx512bw,+avx512cd,+avx512dq,+avx512f,+avx512fp16,+avx512ifma,+avx512vbmi,+avx512vbmi2,+avx512vl,+avx512vnni,+avx512vpopcntdq,+cmov,+crc32,+cx8,+evex512,+f16c,+fma,+mmx,+pclmul,+popcnt,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+vaes,+vpclmulqdq,+x87,+xsave" __attribute__((target("avx10.1-512"))) void f_avx10_1_512(void) {} + +// CHECK: [[f_prefer_256_bit]] = {{.*}}"target-features"="{{.*}}+prefer-256-bit +__attribute__((target("prefer-256-bit"))) +void f_prefer_256_bit(void) {} + +// CHECK: [[f_no_prefer_256_bit]] = {{.*}}"target-features"="{{.*}}-prefer-256-bit +__attribute__((target("no-prefer-256-bit"))) +void f_no_prefer_256_bit(void) {} \ No newline at end of file _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
