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| author | Yi Jiang <yjiang@apple.com> | 2013-12-12 01:55:04 +0000 |
|---|---|---|
| committer | Yi Jiang <yjiang@apple.com> | 2013-12-12 01:55:04 +0000 |
| commit | f92a574246b391e905847e74b5e0283589c8741f (patch) | |
| tree | f1617a8e57fa85330f1d62026e2183a7c6a87c2b /llvm/lib/Transforms | |
| parent | 4705f8d842662050a88e9c0ac91ff337a5922fb6 (diff) | |
| download | bcm5719-llvm-f92a574246b391e905847e74b5e0283589c8741f.tar.gz bcm5719-llvm-f92a574246b391e905847e74b5e0283589c8741f.zip | |
Resubmit r196544: Apply transformation on OS X 10.9+ and iOS 7.0+: pow(10, x) ―> __exp10(x)
llvm-svn: 197109
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp index 15b3e66f94a..b555cf8bddb 100644 --- a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp @@ -1162,6 +1162,12 @@ struct PowOpt : public UnsafeFPLibCallOptimization { hasUnaryFloatFn(TLI, Op1->getType(), LibFunc::exp2, LibFunc::exp2f, LibFunc::exp2l)) return EmitUnaryFloatFnCall(Op2, "exp2", B, Callee->getAttributes()); + // pow(10.0, x) -> exp10(x) + if (Op1C->isExactlyValue(10.0) && + hasUnaryFloatFn(TLI, Op1->getType(), LibFunc::exp10, LibFunc::exp10f, + LibFunc::exp10l)) + return EmitUnaryFloatFnCall(Op2, TLI->getName(LibFunc::exp10), B, + Callee->getAttributes()); } ConstantFP *Op2C = dyn_cast<ConstantFP>(Op2); |
