Author: dim
Date: Sun Jan 28 16:10:40 2018
New Revision: 328513
URL: https://svnweb.freebsd.org/changeset/base/328513
Log:
Pull in r322245 from upstream clang trunk (by Craig Topper):
[X86] Make -mavx512f imply -mfma and -mf16c in the frontend like it
does in the backend.
Similarly, make -mno-fma and -mno-f16c imply -mno-avx512f.
Withou this "-mno-sse -mavx512f" ends up with avx512f being enabled
in the frontend but disabled in the backend.
Reported by: pawel
PR: 225488
Modified:
head/contrib/llvm/tools/clang/lib/Basic/Targets/X86.cpp
Modified: head/contrib/llvm/tools/clang/lib/Basic/Targets/X86.cpp
==============================================================================
--- head/contrib/llvm/tools/clang/lib/Basic/Targets/X86.cpp Sun Jan 28
15:33:32 2018 (r328512)
+++ head/contrib/llvm/tools/clang/lib/Basic/Targets/X86.cpp Sun Jan 28
16:10:40 2018 (r328513)
@@ -409,7 +409,7 @@ void X86TargetInfo::setSSELevel(llvm::StringMap<bool>
if (Enabled) {
switch (Level) {
case AVX512F:
- Features["avx512f"] = true;
+ Features["avx512f"] = Features["fma"] = Features["f16c"] = true;
LLVM_FALLTHROUGH;
case AVX2:
Features["avx2"] = true;
@@ -623,6 +623,8 @@ void X86TargetInfo::setFeatureEnabledImpl(llvm::String
} else if (Name == "fma") {
if (Enabled)
setSSELevel(Features, AVX, Enabled);
+ else
+ setSSELevel(Features, AVX512F, Enabled);
} else if (Name == "fma4") {
setXOPLevel(Features, FMA4, Enabled);
} else if (Name == "xop") {
@@ -632,6 +634,8 @@ void X86TargetInfo::setFeatureEnabledImpl(llvm::String
} else if (Name == "f16c") {
if (Enabled)
setSSELevel(Features, AVX, Enabled);
+ else
+ setSSELevel(Features, AVX512F, Enabled);
} else if (Name == "sha") {
if (Enabled)
setSSELevel(Features, SSE2, Enabled);
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