diff options
Diffstat (limited to 'lib/Target/ARM/ARMFastISel.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMFastISel.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMFastISel.cpp b/lib/Target/ARM/ARMFastISel.cpp index 873404effd..d6ef3f333b 100644 --- a/lib/Target/ARM/ARMFastISel.cpp +++ b/lib/Target/ARM/ARMFastISel.cpp @@ -1026,6 +1026,9 @@ bool ARMFastISel::ARMEmitLoad(EVT VT, unsigned &ResultReg, Address &Addr, RC = &ARM::GPRRegClass; break; case MVT::i16: + if (Alignment && Alignment < 2 && !Subtarget->allowsUnalignedMem()) + return false; + if (isThumb2) { if (Addr.Offset < 0 && Addr.Offset > -256 && Subtarget->hasV6T2Ops()) Opc = isZExt ? ARM::t2LDRHi8 : ARM::t2LDRSHi8; @@ -1038,6 +1041,9 @@ bool ARMFastISel::ARMEmitLoad(EVT VT, unsigned &ResultReg, Address &Addr, RC = &ARM::GPRRegClass; break; case MVT::i32: + if (Alignment && Alignment < 4 && !Subtarget->allowsUnalignedMem()) + return false; + if (isThumb2) { if (Addr.Offset < 0 && Addr.Offset > -256 && Subtarget->hasV6T2Ops()) Opc = ARM::t2LDRi8; @@ -1144,6 +1150,9 @@ bool ARMFastISel::ARMEmitStore(EVT VT, unsigned SrcReg, Address &Addr, } break; case MVT::i16: + if (Alignment && Alignment < 2 && !Subtarget->allowsUnalignedMem()) + return false; + if (isThumb2) { if (Addr.Offset < 0 && Addr.Offset > -256 && Subtarget->hasV6T2Ops()) StrOpc = ARM::t2STRHi8; @@ -1155,6 +1164,9 @@ bool ARMFastISel::ARMEmitStore(EVT VT, unsigned SrcReg, Address &Addr, } break; case MVT::i32: + if (Alignment && Alignment < 4 && !Subtarget->allowsUnalignedMem()) + return false; + if (isThumb2) { if (Addr.Offset < 0 && Addr.Offset > -256 && Subtarget->hasV6T2Ops()) StrOpc = ARM::t2STRi8; |