1 # RUN: llc -march=hexagon -run-pass if-converter -o - %s -verify-machineinstrs | FileCheck %s
3 # The register r23 is live on the path bb.0->bb.2->bb.3. Make sure we add
4 # an implicit use of r23 to the predicated redefinition:
5 # CHECK: $r23 = A2_tfrt killed $p0, killed $r1, implicit killed $r23
7 # LivePhysRegs::addPristines could accidentally remove a callee-saved
8 # register, if it determined that it wasn't pristine. Doing that caused
9 # r23 in this testcase to be dropped from the Redefs set, and subsequently
10 # the necessary implicit use was not added for it.
14 tracksRegLiveness: true
16 - { id: 0, offset: 0, size: 4, alignment: 4, callee-saved-register: '$r23' }
19 successors: %bb.1, %bb.2
20 liveins: $r0, $r1, $r23
21 $p0 = C2_cmpgti killed $r0, 0
22 J2_jumpf killed $p0, %bb.2, implicit-def $pc
27 $r23 = A2_tfr killed $r1
28 J2_jump %bb.3, implicit-def $pc