1 # RUN: llc -march=hexagon -run-pass unreachable-mbb-elimination %s -o - | FileCheck %s 2 3 --- 4 name: fred 5 tracksRegLiveness: true 6 body: | 7 bb.0: 8 liveins: $d0 9 successors: %bb.2 10 11 %0 : doubleregs = COPY $d0 12 J2_jump %bb.2, implicit-def $pc 13 14 bb.1: 15 successors: %bb.2 16 A2_nop 17 18 bb.2: 19 ; Make sure that the subregister from the PHI operand is preserved. 20 ; CHECK: %[[REG:[0-9]+]]:intregs = COPY %0.isub_lo 21 ; CHECK: $r0 = COPY %[[REG]] 22 %1 : intregs = PHI %0.isub_lo, %bb.0, %0.isub_hi, %bb.1 23 $r0 = COPY %1 24 ... 25
