ARM extend instructions simplification.
Refactor the SXTB, SXTH, SXTB16, UXTB, UXTH, and UXTB16 instructions to not
have an 'r' and an 'r_rot' version, but just a single version with a rotate
that can be zero. Use plain Pat<>'s for the ISel of the non-rotated version.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136225 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMFastISel.cpp b/lib/Target/ARM/ARMFastISel.cpp
index 5d73bd9..35d6406 100644
--- a/lib/Target/ARM/ARMFastISel.cpp
+++ b/lib/Target/ARM/ARMFastISel.cpp
@@ -2003,15 +2003,15 @@
default: return false;
case MVT::i16:
if (isZext)
- Opc = isThumb ? ARM::t2UXTHr : ARM::UXTHr;
+ Opc = isThumb ? ARM::t2UXTH : ARM::UXTH;
else
- Opc = isThumb ? ARM::t2SXTHr : ARM::SXTHr;
+ Opc = isThumb ? ARM::t2SXTH : ARM::SXTH;
break;
case MVT::i8:
if (isZext)
- Opc = isThumb ? ARM::t2UXTBr : ARM::UXTBr;
+ Opc = isThumb ? ARM::t2UXTB : ARM::UXTB;
else
- Opc = isThumb ? ARM::t2SXTBr : ARM::SXTBr;
+ Opc = isThumb ? ARM::t2SXTB : ARM::SXTB;
break;
case MVT::i1:
if (isZext) {
@@ -2033,6 +2033,8 @@
.addReg(SrcReg);
if (isBoolZext)
MIB.addImm(1);
+ else
+ MIB.addImm(0);
AddOptionalDefs(MIB);
UpdateValueMap(I, DestReg);
return true;