Clean up the conditional for handling of sign_extend_inreg based on
whether the extract instructions are available.
rdar://7956878
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103277 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index f8c17b8..d8582ec 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -393,8 +393,11 @@
setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32, Expand);
setOperationAction(ISD::MEMBARRIER, MVT::Other, Custom);
- if (!Subtarget->hasV6Ops() && (!Subtarget->isThumb2()
- || !Subtarget->hasT2ExtractPack())) {
+ // If the subtarget does not have extract instructions, sign_extend_inreg
+ // needs to be expanded. Extract is available in ARM mode on v6 and up,
+ // and on most Thumb2 implementations.
+ if ((!Subtarget->isThumb() && !Subtarget->hasV6Ops())
+ || (Subtarget->isThumb2() && !Subtarget->hasT2ExtractPack())) {
setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i16, Expand);
setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i8, Expand);
}