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author | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-08-23 10:27:02 +0000 |
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committer | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-08-23 10:27:02 +0000 |
commit | a8a7099c1849fcbb4a68642a292fd0250aa46505 (patch) | |
tree | f3f31347a082cd803e6a47a6e8b57294ac55748d /lib/Analysis/TargetTransformInfo.cpp | |
parent | 287c84a0b45cc826b1200f4cf4be3547d2fcd69c (diff) | |
download | llvm-a8a7099c1849fcbb4a68642a292fd0250aa46505.tar.gz llvm-a8a7099c1849fcbb4a68642a292fd0250aa46505.tar.bz2 llvm-a8a7099c1849fcbb4a68642a292fd0250aa46505.tar.xz |
Turn MipsOptimizeMathLibCalls into a target-independent scalar transform
...so that it can be used for z too. Most of the code is the same.
The only real change is to use TargetTransformInfo to test when a sqrt
instruction is available.
The pass is opt-in because at the moment it only handles sqrt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189097 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/TargetTransformInfo.cpp')
-rw-r--r-- | lib/Analysis/TargetTransformInfo.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Analysis/TargetTransformInfo.cpp b/lib/Analysis/TargetTransformInfo.cpp index 4ad71627be..0a215aa53c 100644 --- a/lib/Analysis/TargetTransformInfo.cpp +++ b/lib/Analysis/TargetTransformInfo.cpp @@ -145,6 +145,10 @@ TargetTransformInfo::getPopcntSupport(unsigned IntTyWidthInBit) const { return PrevTTI->getPopcntSupport(IntTyWidthInBit); } +bool TargetTransformInfo::haveFastSqrt(Type *Ty) const { + return PrevTTI->haveFastSqrt(Ty); +} + unsigned TargetTransformInfo::getIntImmCost(const APInt &Imm, Type *Ty) const { return PrevTTI->getIntImmCost(Imm, Ty); } @@ -505,6 +509,10 @@ struct NoTTI : ImmutablePass, TargetTransformInfo { return PSK_Software; } + bool haveFastSqrt(Type *Ty) const { + return false; + } + unsigned getIntImmCost(const APInt &Imm, Type *Ty) const { return 1; } |