Fix r93758. Use isel patterns instead of c++ selection code to select rbit and make sure we pick different instructions for ARM vs. Thumb2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93829 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td
index 3670d0f..34a793c 100644
--- a/lib/Target/ARM/ARMInstrThumb2.td
+++ b/lib/Target/ARM/ARMInstrThumb2.td
@@ -1541,7 +1541,8 @@
"clz", "\t$dst, $src", [(set GPR:$dst, (ctlz GPR:$src))]>;
def t2RBIT : T2I_misc<0b01, 0b10, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
- "rbit", "\t$dst, $src", []>;
+ "rbit", "\t$dst, $src",
+ [(set GPR:$dst, (ARMrbit GPR:$src))]>;
def t2REV : T2I_misc<0b01, 0b00, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
"rev", ".w\t$dst, $src", [(set GPR:$dst, (bswap GPR:$src))]>;