[llvm] r331420 - Commit r331416 breaks the big-endian PPC bot. On the big endian build, we
Nemanja Ivanovic via llvm-commits
llvm-commits at lists.llvm.org
Wed May 2 18:04:13 PDT 2018
Author: nemanjai
Date: Wed May 2 18:04:13 2018
New Revision: 331420
URL: http://llvm.org/viewvc/llvm-project?rev=331420&view=rev
Log:
Commit r331416 breaks the big-endian PPC bot. On the big endian build, we
actually encounter constants wider than 64-bits. Add the guard to prevent
tripping the assert.
Modified:
llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp
Modified: llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp?rev=331420&r1=331419&r2=331420&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp Wed May 2 18:04:13 2018
@@ -13984,6 +13984,9 @@ isMaskAndCmp0FoldingBeneficial(const Ins
const Value *Mask = AndI.getOperand(1);
// If the mask is suitable for andi. or andis. we should sink the and.
if (const ConstantInt *CI = dyn_cast<ConstantInt>(Mask)) {
+ // Can't handle constants wider than 64-bits.
+ if (CI->getBitWidth() > 64)
+ return false;
int64_t ConstVal = CI->getZExtValue();
return isUInt<16>(ConstVal) ||
(isUInt<16>(ConstVal >> 16) && !(ConstVal & 0xFFFF));
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