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path: root/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
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Diffstat (limited to 'lib/Target/ARM/ARMLoadStoreOptimizer.cpp')
-rw-r--r--lib/Target/ARM/ARMLoadStoreOptimizer.cpp12
1 files changed, 3 insertions, 9 deletions
diff --git a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
index d9dc5cdedb..23e0788a06 100644
--- a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
+++ b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
@@ -1530,15 +1530,9 @@ ARMPreAllocLoadStoreOpt::CanFormLdStDWord(MachineInstr *Op0, MachineInstr *Op1,
// Then make sure the immediate offset fits.
int OffImm = getMemoryOpOffset(Op0);
if (isT2) {
- if (OffImm < 0) {
- if (OffImm < -255)
- // Can't fall back to t2LDRi8 / t2STRi8.
- return false;
- } else {
- int Limit = (1 << 8) * Scale;
- if (OffImm >= Limit || (OffImm & (Scale-1)))
- return false;
- }
+ int Limit = (1 << 8) * Scale;
+ if (OffImm >= Limit || (OffImm <= -Limit) || (OffImm & (Scale-1)))
+ return false;
Offset = OffImm;
} else {
ARM_AM::AddrOpc AddSub = ARM_AM::add;