llvm-project/llvm/test/CodeGen/Hexagon/ifcvt-common-kill.mir

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# RUN: llc -march=hexagon -run-pass if-converter -o - %s -verify-machineinstrs | FileCheck %s
# CHECK: %r26 = A2_tfr %r1
# CHECK: S2_pstorerhf_io undef %p0, undef %r0, 0, killed %r1
---
name: foo
tracksRegLiveness: true
body: |
bb.0:
successors: %bb.1, %bb.2
liveins: %r0, %r1
J2_jumpf undef %p0, %bb.2, implicit-def %pc
bb.1:
successors: %bb.3
liveins: %r1
; This <kill> flag should be cleared. It didn't use to be, because
; this instruction is treated as a duplicate of the corresponding
; instruction from the "false" block bb.2. Clearing of the <kill>
; flags was limited to the non-common part of the "true" block.
%r26 = A2_tfr killed %r1
J2_jump %bb.3, implicit-def %pc
bb.2:
successors: %bb.3
liveins: %r1
%r26 = A2_tfr %r1
S2_storerh_io undef %r0, 0, killed %r1
J2_jump %bb.3, implicit-def %pc
bb.3:
liveins: %r26
...