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path: root/lib/Target/ARM/ARMFastISel.cpp
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Diffstat (limited to 'lib/Target/ARM/ARMFastISel.cpp')
-rw-r--r--lib/Target/ARM/ARMFastISel.cpp18
1 files changed, 13 insertions, 5 deletions
diff --git a/lib/Target/ARM/ARMFastISel.cpp b/lib/Target/ARM/ARMFastISel.cpp
index 23629e7667..44c88aa7fd 100644
--- a/lib/Target/ARM/ARMFastISel.cpp
+++ b/lib/Target/ARM/ARMFastISel.cpp
@@ -846,9 +846,17 @@ void ARMFastISel::ARMSimplifyAddress(Address &Addr, EVT VT) {
switch (VT.getSimpleVT().SimpleTy) {
default:
assert(false && "Unhandled load/store type!");
+ case MVT::i16:
+ if (isThumb2)
+ // Integer loads/stores handle 12-bit offsets.
+ needsLowering = ((Addr.Offset & 0xfff) != Addr.Offset);
+ else
+ // ARM i16 integer loads/stores handle +/-imm8 offsets.
+ if (Addr.Offset > 255 || Addr.Offset < -255)
+ needsLowering = true;
+ break;
case MVT::i1:
case MVT::i8:
- case MVT::i16:
case MVT::i32:
// Integer loads/stores handle 12-bit offsets.
needsLowering = ((Addr.Offset & 0xfff) != Addr.Offset);
@@ -932,14 +940,14 @@ bool ARMFastISel::ARMEmitLoad(EVT VT, unsigned &ResultReg, Address &Addr) {
switch (VT.getSimpleVT().SimpleTy) {
// This is mostly going to be Neon/vector support.
default: return false;
- case MVT::i16:
- Opc = isThumb2 ? ARM::t2LDRHi12 : ARM::LDRH;
- RC = ARM::GPRRegisterClass;
- break;
case MVT::i8:
Opc = isThumb2 ? ARM::t2LDRBi12 : ARM::LDRBi12;
RC = ARM::GPRRegisterClass;
break;
+ case MVT::i16:
+ Opc = isThumb2 ? ARM::t2LDRHi12 : ARM::LDRH;
+ RC = ARM::GPRRegisterClass;
+ break;
case MVT::i32:
Opc = isThumb2 ? ARM::t2LDRi12 : ARM::LDRi12;
RC = ARM::GPRRegisterClass;