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[X86] Add an early out to combineLoopMAddPattern and combineLoopSADPattern when SSE2 is disabled.

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Without this the madd.ll and sad.ll test cases both throw assertions if you run them with SSE2 disabled.

llvm-svn: 311872
This commit is contained in:
Craig Topper 2017-08-28 04:29:08 +00:00
parent ed191215a4
commit 43ff91b11b
1 changed files with 6 additions and 0 deletions
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6
lib/Target/X86/X86ISelLowering.cpp
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@ -35230,6 +35230,9 @@ static SDValue combineAddOrSubToADCOrSBB(SDNode *N, SelectionDAG &DAG) {
static SDValue combineLoopMAddPattern(SDNode *N, SelectionDAG &DAG,
const X86Subtarget &Subtarget) {
if (!Subtarget.hasSSE2())
return SDValue();
SDValue MulOp = N->getOperand(0);
SDValue Phi = N->getOperand(1);
@ -35275,6 +35278,9 @@ static SDValue combineLoopMAddPattern(SDNode *N, SelectionDAG &DAG,
static SDValue combineLoopSADPattern(SDNode *N, SelectionDAG &DAG,
const X86Subtarget &Subtarget) {
if (!Subtarget.hasSSE2())
return SDValue();
SDLoc DL(N);
EVT VT = N->getValueType(0);
SDValue Op0 = N->getOperand(0);