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Lower llvm.sqrt -> fsqrt/sqrt

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21629 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-04-30 04:07:50 +00:00
parent 459ced2657
commit b42a9ffbe9
1 changed files with 17 additions and 1 deletions
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18
lib/CodeGen/IntrinsicLowering.cpp
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@ -110,8 +110,13 @@ void DefaultIntrinsicLowering::AddPrototypes(Module &M) {
case Intrinsic::isunordered: case Intrinsic::isunordered:
EnsureFunctionExists(M, "isunordered", I->arg_begin(), I->arg_end(), Type::BoolTy); EnsureFunctionExists(M, "isunordered", I->arg_begin(), I->arg_end(), Type::BoolTy);
break; break;
case Intrinsic::sqrt:
if(I->abegin()->getType() == Type::FloatTy)
EnsureFunctionExists(M, "sqrtf", I->arg_begin(), I->arg_end(), Type::FloatTy);
else
EnsureFunctionExists(M, "sqrt", I->arg_begin(), I->arg_end(), Type::DoubleTy);
break;
} }
} }
void DefaultIntrinsicLowering::LowerIntrinsicCall(CallInst *CI) { void DefaultIntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
@ -219,6 +224,17 @@ void DefaultIntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
"isunordered", CI)); "isunordered", CI));
break; break;
} }
case Intrinsic::sqrt: {
static Function *sqrtFCache = 0;
static Function *sqrtfFCache = 0;
if(CI->getType() == Type::FloatTy)
ReplaceCallWith("sqrtf", CI, CI->op_begin()+1, CI->op_end(),
Type::FloatTy, sqrtfFCache);
else
ReplaceCallWith("sqrt", CI, CI->op_begin()+1, CI->op_end(),
Type::DoubleTy, sqrtFCache);
break;
}
} }
assert(CI->use_empty() && assert(CI->use_empty() &&