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| author | Akira Hatanaka <ahatanaka@mips.com> | 2013-06-11 22:21:44 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@mips.com> | 2013-06-11 22:21:44 +0000 |
| commit | 45137f954f976ea75282f7b4b2dac5777837840f (patch) | |
| tree | d26cbbbd3339d9a81bfae2a53c7451eb4f784fe9 /lib/Target/Mips/MipsTargetMachine.cpp | |
| parent | a11c3e25015a62c817e60ec4f955a7f3f3bb6c67 (diff) | |
| download | llvm-45137f954f976ea75282f7b4b2dac5777837840f.tar.gz llvm-45137f954f976ea75282f7b4b2dac5777837840f.tar.bz2 llvm-45137f954f976ea75282f7b4b2dac5777837840f.tar.xz | |
[mips] Add an IR transformation pass that optimizes calls to sqrt.
The pass emits a call to sqrt that has attribute "read-none". This call will be
converted to an ISD::FSQRT node during DAG construction, which will turn into
a mips native sqrt instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183802 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/MipsTargetMachine.cpp')
| -rw-r--r-- | lib/Target/Mips/MipsTargetMachine.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Target/Mips/MipsTargetMachine.cpp b/lib/Target/Mips/MipsTargetMachine.cpp index 89407351a0..9af2f1b201 100644 --- a/lib/Target/Mips/MipsTargetMachine.cpp +++ b/lib/Target/Mips/MipsTargetMachine.cpp @@ -160,6 +160,7 @@ void MipsPassConfig::addIRPasses() { addPass(createMipsOs16(getMipsTargetMachine())); if (getMipsSubtarget().inMips16HardFloat()) addPass(createMips16HardFloat(getMipsTargetMachine())); + addPass(createMipsOptimizeMathLibCalls(getMipsTargetMachine())); } // Install an instruction selector pass using // the ISelDag to gen Mips code. |