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1# RUN: llc -mtriple=hexagon -run-pass if-converter -o - %s -verify-machineinstrs | FileCheck %s2 3# The register r23 is live on the path bb.0->bb.2->bb.3. Make sure we add4# an implicit use of r23 to the predicated redefinition:5# CHECK: $r23 = A2_tfrt killed $p0, killed $r1, implicit killed $r236 7# LivePhysRegs::addPristines could accidentally remove a callee-saved8# register, if it determined that it wasn't pristine. Doing that caused9# r23 in this testcase to be dropped from the Redefs set, and subsequently10# the necessary implicit use was not added for it.11 12---13name: foo14tracksRegLiveness: true15fixedStack:16 - { id: 0, offset: 0, size: 4, alignment: 4, callee-saved-register: '$r23' }17body: |18 bb.0:19 successors: %bb.1, %bb.220 liveins: $r0, $r1, $r2321 $p0 = C2_cmpgti killed $r0, 022 J2_jumpf killed $p0, %bb.2, implicit-def $pc23 24 bb.1:25 successors: %bb.326 liveins: $r127 $r23 = A2_tfr killed $r128 J2_jump %bb.3, implicit-def $pc29 30 bb.2:31 successors: %bb.332 liveins: $r1, $r2333 $r0 = A2_tfr $r134 35 bb.3:36 liveins: $r2337...38