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-rw-r--r--llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp b/llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp
index dcb05601e5f..8a76c42b589 100644
--- a/llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp
+++ b/llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp
@@ -1470,6 +1470,9 @@ bool AArch64LoadStoreOpt::tryToPairLdStInst(MachineBasicBlock::iterator &MBBI) {
bool IsUnscaled = TII->isUnscaledLdSt(MI);
int Offset = getLdStOffsetOp(MI).getImm();
int OffsetStride = IsUnscaled ? getMemScale(MI) : 1;
+ // Allow one more for offset.
+ if (Offset > 0)
+ Offset -= OffsetStride;
if (!inBoundsForPair(IsUnscaled, Offset, OffsetStride))
return false;
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