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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 | 41a300757171e208a1367d423feca80db0f40364 (patch) | |
| tree | 3e85c63677659288a08fcdd59946650c2e384ebc /lib/Transforms/Utils | |
| parent | 7c2b072d69cc4743866f56eb538cc7674dcd289e (diff) | |
| download | llvm-41a300757171e208a1367d423feca80db0f40364.tar.gz llvm-41a300757171e208a1367d423feca80db0f40364.tar.bz2 llvm-41a300757171e208a1367d423feca80db0f40364.tar.xz | |
Resubmit r196544: Apply transformation on OS X 10.9+ and iOS 7.0+: pow(10, x) ―> __exp10(x)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197109 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils')
| -rw-r--r-- | lib/Transforms/Utils/SimplifyLibCalls.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Transforms/Utils/SimplifyLibCalls.cpp b/lib/Transforms/Utils/SimplifyLibCalls.cpp index 15b3e66f94..b555cf8bdd 100644 --- a/lib/Transforms/Utils/SimplifyLibCalls.cpp +++ b/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); |