diff options
| -rw-r--r-- | lib/Target/ARM/ARMInstrThumb2.td | 11 | ||||
| -rw-r--r-- | test/CodeGen/Thumb2/thumb2-lsr3.ll | 19 |
2 files changed, 29 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td index 1126be4422..2affa6389c 100644 --- a/lib/Target/ARM/ARMInstrThumb2.td +++ b/lib/Target/ARM/ARMInstrThumb2.td @@ -715,9 +715,18 @@ defm t2ASR : T2I_sh_ir<"asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>; defm t2ROR : T2I_sh_ir<"ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>; def t2MOVrx : T2sI<(outs GPR:$dst), (ins GPR:$src), - "mov", " $dst, $src, rrx", + "rrx", " $dst, $src", [(set GPR:$dst, (ARMrrx GPR:$src))]>; +let Defs = [CPSR] in { +def t2MOVsrl_flag : T2XI<(outs GPR:$dst), (ins GPR:$src), + "lsrs.w $dst, $src, #1", + [(set GPR:$dst, (ARMsrl_flag GPR:$src))]>; +def t2MOVsra_flag : T2XI<(outs GPR:$dst), (ins GPR:$src), + "asrs.w $dst, $src, #1", + [(set GPR:$dst, (ARMsra_flag GPR:$src))]>; +} + //===----------------------------------------------------------------------===// // Bitwise Instructions. // diff --git a/test/CodeGen/Thumb2/thumb2-lsr3.ll b/test/CodeGen/Thumb2/thumb2-lsr3.ll new file mode 100644 index 0000000000..9bc4b5b7c5 --- /dev/null +++ b/test/CodeGen/Thumb2/thumb2-lsr3.ll @@ -0,0 +1,19 @@ +; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 + +define i1 @test1(i64 %poscnt, i32 %work) { +entry: +; CHECK: rrx r0, r0 +; CHECK: lsrs.w r1, r1, #1 + %0 = lshr i64 %poscnt, 1 + %1 = icmp eq i64 %0, 0 + ret i1 %1 +} + +define i1 @test2(i64 %poscnt, i32 %work) { +entry: +; CHECK: rrx r0, r0 +; CHECK: asrs.w r1, r1, #1 + %0 = ashr i64 %poscnt, 1 + %1 = icmp eq i64 %0, 0 + ret i1 %1 +} |