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Merging r232957:

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r232957 | thomas.stellard | 2015-03-23 12:06:01 -0400 (Mon, 23 Mar 2015) | 5 lines

R600/SI: Fix crash in SIInstrInfo::areLoadsFromSameBasePtr()

This function assumed that SMRD instructions always have immediate
offsets, which is not always the case.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@236069 91177308-0d34-0410-b5e6-96231b3b80d8
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Tom Stellard committed 2015-04-29 00:59:42 +00:00
1 parent 487f5c5d0e
commit 1e430573e2
2 files changed
+43 -3
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lib/Target/R600/SIInstrInfo.cpp
+10 -2
View File
@@ -121,12 +121,20 @@ bool SIInstrInfo::areLoadsFromSameBasePtr(SDNode *Load0, SDNode *Load1,
if (Load0->getOperand(0) != Load1->getOperand(0))
return false;
const ConstantSDNode *Load0Offset =
dyn_cast<ConstantSDNode>(Load0->getOperand(1));
const ConstantSDNode *Load1Offset =
dyn_cast<ConstantSDNode>(Load1->getOperand(1));
if (!Load0Offset || !Load1Offset)
return false;
// Check chain.
if (findChainOperand(Load0) != findChainOperand(Load1))
return false;
Offset0 = cast<ConstantSDNode>(Load0->getOperand(1))->getZExtValue();
Offset1 = cast<ConstantSDNode>(Load1->getOperand(1))->getZExtValue();
Offset0 = Load0Offset->getZExtValue();
Offset1 = Load1Offset->getZExtValue();
return true;
}