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# RUN: llc -mtriple=powerpc64-unknown-linux-gnu -start-after machine-combiner -stop-after machine-combiner -o - %s | FileCheck %s
# PR24724
--- |
define signext i32 @main(i32* %p) #0 {
entry:
%0 = load i32, i32* %p, align 4
%or = or i32 0, %0
store i32 %or, i32* %p, align 4
%lnot.1 = icmp eq i32 undef, 0
%lnot.ext.1 = zext i1 %lnot.1 to i32
%shr.i.1 = lshr i32 2072, %lnot.ext.1
%call.lobit.1 = lshr i32 %shr.i.1, 7
%1 = and i32 %call.lobit.1, 1
%or.1 = or i32 %1, %or
ret i32 %or.1
}
attributes #0 = { nounwind "target-cpu"="ppc64" }
...
---
name: main
isSSA: true
tracksRegLiveness: true
registers:
- { id: 0, class: g8rc_and_g8rc_nox0 }
- { id: 1, class: gprc }
- { id: 2, class: gprc }
- { id: 3, class: gprc }
- { id: 4, class: g8rc }
liveins:
- { reg: '%x3', virtual-reg: '%0' }
body: |
bb.0.entry:
liveins: %x3
%0 = COPY %x3
%1 = LWZ 0, %0 :: (load 4 from %ir.p)
%2 = LI 0
%3 = RLWIMI %2, killed %1, 0, 0, 31
%4 = EXTSW_32_64 killed %3
%x3 = COPY %4
; CHECK: BLR8 implicit %lr8, implicit %rm, implicit %x3
BLR8 implicit %lr8, implicit %rm, implicit %x3
...
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