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1# RUN: llc -mtriple=hexagon -verify-machineinstrs -run-pass prologepilog -o - %s | FileCheck %s2 3# The PS_vstorerw_ai of W0 would normally expand into stores of V0 and V1,4# but both are clobbered by the regmask. Only V0 is re-defined before the5# store, so only V0 should be stored. LivePhysRegs didn't correctly remove6# registers clobbered by regmasks, so V1 also appeared to be live and was7# stored as well. This resulted in the "using undefined physical register"8# error.9 10# This will fail to compile with -verify-machineinstrs, but we can also check11# directly if the output is correct.12 13# CHECK: J2_call &__hexagon_divsi314# CHECK: $v0 = V6_lvsplatw15# CHECK: V6_vS32b_ai $r29, 128, {{.*}} $v016# CHECK-NOT: V6_vS32b_ai $r29, 192, {{.*}} $v117 18name: f019tracksRegLiveness: true20frameInfo:21 adjustsStack: true22stack:23 - { id: 0, offset: 0, size: 128, alignment: 128 }24 - { id: 1, offset: 128, size: 128, alignment: 128 }25 - { id: 2, offset: 384, size: 128, alignment: 128 }26body: |27 bb.0:28 renamable $r0 = PS_fi %stack.0, 029 ADJCALLSTACKDOWN 0, 0, implicit-def $r29, implicit-def dead $r30, implicit $r31, implicit $r30, implicit $r2930 renamable $w0 = PS_vloadrw_ai %stack.2, 0 :: (load (s1024) from %stack.2)31 V6_vS32b_ai killed renamable $r0, 0, renamable $v1 :: (store (s512) into %stack.0, align 128)32 $r0 = A2_tfrsi 033 renamable $r1 = L2_loadri_io %stack.0, 4 :: (load (s32) from %stack.0 + 4)34 J2_call &__hexagon_divsi3, hexagoncsr, implicit-def dead $pc, implicit-def dead $r31, implicit $r29, implicit killed $r0, implicit killed $r1, implicit-def $r29, implicit-def $r035 ADJCALLSTACKUP 0, 0, implicit-def dead $r29, implicit-def dead $r30, implicit-def dead $r31, implicit $r2936 renamable $v0 = V6_lvsplatw killed renamable $r037 PS_vstorerw_ai %stack.1, 0, killed renamable $w0 :: (store (s1024) into %stack.1)38...39 40 41 42