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Turn MipsOptimizeMathLibCalls into a target-independent scalar transform

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...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
This commit is contained in:
Richard Sandiford
2013-08-23 10:27:02 +00:00
parent 287c84a0b4
commit a8a7099c18
16 changed files with 109 additions and 55 deletions
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3
lib/Target/Mips/MipsTargetMachine.cpp
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@ -32,6 +32,7 @@
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Transforms/Scalar.h"
using namespace llvm;
@ -160,7 +161,7 @@ void MipsPassConfig::addIRPasses() {
addPass(createMipsOs16(getMipsTargetMachine()));
if (getMipsSubtarget().inMips16HardFloat())
addPass(createMips16HardFloat(getMipsTargetMachine()));
addPass(createMipsOptimizeMathLibCalls(getMipsTargetMachine()));
addPass(createPartiallyInlineLibCallsPass());
}
// Install an instruction selector pass using
// the ISelDag to gen Mips code.