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[FastISel][AArch64] Add sqrt intrinsic support.

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Fixes <rdar://problem/17867067>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214388 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Juergen Ributzka
2014-07-31 06:25:33 +00:00
parent a4a812fedd
commit a60ed423a6
2 changed files with 39 additions and 0 deletions
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19
lib/Target/AArch64/AArch64FastISel.cpp
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@@ -1708,6 +1708,25 @@ bool AArch64FastISel::FastLowerIntrinsicCall(const IntrinsicInst *II) {
.addImm(1);
return true;
}
case Intrinsic::sqrt: {
Type *RetTy = II->getCalledFunction()->getReturnType();
MVT VT;
if (!isTypeLegal(RetTy, VT))
return false;
unsigned Op0Reg = getRegForValue(II->getOperand(0));
if (!Op0Reg)
return false;
bool Op0IsKill = hasTrivialKill(II->getOperand(0));
unsigned ResultReg = FastEmit_r(VT, VT, ISD::FSQRT, Op0Reg, Op0IsKill);
if (!ResultReg)
return false;
UpdateValueMap(II, ResultReg);
return true;
}
case Intrinsic::sadd_with_overflow:
case Intrinsic::uadd_with_overflow:
case Intrinsic::ssub_with_overflow: