Enable load / store multiple pass for Thumb2. It's not using ldrd / strd yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78104 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
index c6afbe9..a81b790 100644
--- a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
+++ b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
@@ -615,12 +615,15 @@
return false;
bool isDPR = NewOpc == ARM::FLDMD || NewOpc == ARM::FSTMD;
- unsigned Offset = isAM5
- ? ARM_AM::getAM5Opc((AddSub == ARM_AM::sub) ? ARM_AM::db : ARM_AM::ia,
- true, isDPR ? 2 : 1)
- : (isAM2
- ? ARM_AM::getAM2Opc(AddSub, Bytes, ARM_AM::no_shift)
- : Bytes);
+ unsigned Offset = 0;
+ if (isAM5)
+ Offset = ARM_AM::getAM5Opc((AddSub == ARM_AM::sub)
+ ? ARM_AM::db
+ : ARM_AM::ia, true, (isDPR ? 2 : 1));
+ else if (isAM2)
+ Offset = ARM_AM::getAM2Opc(AddSub, Bytes, ARM_AM::no_shift);
+ else
+ Offset = AddSub == ARM_AM::sub ? -Bytes : Bytes;
if (isLd) {
if (isAM5)
// FLDMS, FLDMD