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Added LLVM_FALLTHROUGH to address gcc warning: this statement may fall through. 

llvm-svn: 303649
This commit is contained in:
Galina Kistanova 2017-05-23 16:33:07 +00:00
parent fcbae3a308
commit 078b301bcc
1 changed files with 45 additions and 1 deletions
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46
clang/lib/Basic/Targets.cpp
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@ -1,4 +1,4 @@
//===--- Targets.cpp - Implement target feature support -------------------===//
//===--- Targets.cpp - Implement target feature support -------------------===//
//
// The LLVM Compiler Infrastructure
//
@ -3440,23 +3440,32 @@ void X86TargetInfo::setSSELevel(llvm::StringMap<bool> &Features,
switch (Level) {
case AVX512F:
Features["avx512f"] = true;
LLVM_FALLTHROUGH;
case AVX2:
Features["avx2"] = true;
LLVM_FALLTHROUGH;
case AVX:
Features["avx"] = true;
Features["xsave"] = true;
LLVM_FALLTHROUGH;
case SSE42:
Features["sse4.2"] = true;
LLVM_FALLTHROUGH;
case SSE41:
Features["sse4.1"] = true;
LLVM_FALLTHROUGH;
case SSSE3:
Features["ssse3"] = true;
LLVM_FALLTHROUGH;
case SSE3:
Features["sse3"] = true;
LLVM_FALLTHROUGH;
case SSE2:
Features["sse2"] = true;
LLVM_FALLTHROUGH;
case SSE1:
Features["sse"] = true;
LLVM_FALLTHROUGH;
case NoSSE:
break;
}
@ -3467,29 +3476,38 @@ void X86TargetInfo::setSSELevel(llvm::StringMap<bool> &Features,
case NoSSE:
case SSE1:
Features["sse"] = false;
LLVM_FALLTHROUGH;
case SSE2:
Features["sse2"] = Features["pclmul"] = Features["aes"] =
Features["sha"] = false;
LLVM_FALLTHROUGH;
case SSE3:
Features["sse3"] = false;
setXOPLevel(Features, NoXOP, false);
LLVM_FALLTHROUGH;
case SSSE3:
Features["ssse3"] = false;
LLVM_FALLTHROUGH;
case SSE41:
Features["sse4.1"] = false;
LLVM_FALLTHROUGH;
case SSE42:
Features["sse4.2"] = false;
LLVM_FALLTHROUGH;
case AVX:
Features["fma"] = Features["avx"] = Features["f16c"] = Features["xsave"] =
Features["xsaveopt"] = false;
setXOPLevel(Features, FMA4, false);
LLVM_FALLTHROUGH;
case AVX2:
Features["avx2"] = false;
LLVM_FALLTHROUGH;
case AVX512F:
Features["avx512f"] = Features["avx512cd"] = Features["avx512er"] =
Features["avx512pf"] = Features["avx512dq"] = Features["avx512bw"] =
Features["avx512vl"] = Features["avx512vbmi"] =
Features["avx512ifma"] = false;
LLVM_FALLTHROUGH;
}
}
@ -3499,10 +3517,13 @@ void X86TargetInfo::setMMXLevel(llvm::StringMap<bool> &Features,
switch (Level) {
case AMD3DNowAthlon:
Features["3dnowa"] = true;
LLVM_FALLTHROUGH;
case AMD3DNow:
Features["3dnow"] = true;
LLVM_FALLTHROUGH;
case MMX:
Features["mmx"] = true;
LLVM_FALLTHROUGH;
case NoMMX3DNow:
break;
}
@ -3513,8 +3534,10 @@ void X86TargetInfo::setMMXLevel(llvm::StringMap<bool> &Features,
case NoMMX3DNow:
case MMX:
Features["mmx"] = false;
LLVM_FALLTHROUGH;
case AMD3DNow:
Features["3dnow"] = false;
LLVM_FALLTHROUGH;
case AMD3DNowAthlon:
Features["3dnowa"] = false;
}
@ -3526,12 +3549,15 @@ void X86TargetInfo::setXOPLevel(llvm::StringMap<bool> &Features, XOPEnum Level,
switch (Level) {
case XOP:
Features["xop"] = true;
LLVM_FALLTHROUGH;
case FMA4:
Features["fma4"] = true;
setSSELevel(Features, AVX, true);
LLVM_FALLTHROUGH;
case SSE4A:
Features["sse4a"] = true;
setSSELevel(Features, SSE3, true);
LLVM_FALLTHROUGH;
case NoXOP:
break;
}
@ -3542,10 +3568,13 @@ void X86TargetInfo::setXOPLevel(llvm::StringMap<bool> &Features, XOPEnum Level,
case NoXOP:
case SSE4A:
Features["sse4a"] = false;
LLVM_FALLTHROUGH;
case FMA4:
Features["fma4"] = false;
LLVM_FALLTHROUGH;
case XOP:
Features["xop"] = false;
LLVM_FALLTHROUGH;
}
}
@ -3991,10 +4020,13 @@ void X86TargetInfo::getTargetDefines(const LangOptions &Opts,
switch (XOPLevel) {
case XOP:
Builder.defineMacro("__XOP__");
LLVM_FALLTHROUGH;
case FMA4:
Builder.defineMacro("__FMA4__");
LLVM_FALLTHROUGH;
case SSE4A:
Builder.defineMacro("__SSE4A__");
LLVM_FALLTHROUGH;
case NoXOP:
break;
}
@ -4056,24 +4088,33 @@ void X86TargetInfo::getTargetDefines(const LangOptions &Opts,
switch (SSELevel) {
case AVX512F:
Builder.defineMacro("__AVX512F__");
LLVM_FALLTHROUGH;
case AVX2:
Builder.defineMacro("__AVX2__");
LLVM_FALLTHROUGH;
case AVX:
Builder.defineMacro("__AVX__");
LLVM_FALLTHROUGH;
case SSE42:
Builder.defineMacro("__SSE4_2__");
LLVM_FALLTHROUGH;
case SSE41:
Builder.defineMacro("__SSE4_1__");
LLVM_FALLTHROUGH;
case SSSE3:
Builder.defineMacro("__SSSE3__");
LLVM_FALLTHROUGH;
case SSE3:
Builder.defineMacro("__SSE3__");
LLVM_FALLTHROUGH;
case SSE2:
Builder.defineMacro("__SSE2__");
Builder.defineMacro("__SSE2_MATH__"); // -mfp-math=sse always implied.
LLVM_FALLTHROUGH;
case SSE1:
Builder.defineMacro("__SSE__");
Builder.defineMacro("__SSE_MATH__"); // -mfp-math=sse always implied.
LLVM_FALLTHROUGH;
case NoSSE:
break;
}
@ -4102,10 +4143,13 @@ void X86TargetInfo::getTargetDefines(const LangOptions &Opts,
switch (MMX3DNowLevel) {
case AMD3DNowAthlon:
Builder.defineMacro("__3dNOW_A__");
LLVM_FALLTHROUGH;
case AMD3DNow:
Builder.defineMacro("__3dNOW__");
LLVM_FALLTHROUGH;
case MMX:
Builder.defineMacro("__MMX__");
LLVM_FALLTHROUGH;
case NoMMX3DNow:
break;
}