1# RUN: llc -verify-machineinstrs -run-pass regallocfast -mtriple s390x-ibm-linux -o - %s | FileCheck %s 2--- | 3 4 @g_167 = external global [5 x i64], align 8 5 define void @main() local_unnamed_addr { 6 ret void 7 } 8... 9# Make sure the usage of different subregisters on the same virtual register 10# does not result in invalid kill flags. 11# PR33677 12--- 13name: main 14alignment: 2 15tracksRegLiveness: true 16registers: 17 - { id: 0, class: gr128bit } 18 - { id: 1, class: gr64bit } 19 - { id: 2, class: addr64bit } 20# CHECK: $r0q = L128 21# CHECK-NEXT: $r0l = COPY renamable $r1l 22# Although R0L partially redefines R0Q, it must not mark R0Q as kill 23# because R1D is still live through that instruction. 24# CHECK-NOT: implicit killed $r0q 25# CHECK-NEXT: $r2d = COPY renamable $r1d 26# CHECK-NEXT: LARL 27body: | 28 bb.0: 29 %0.subreg_hl32 = COPY %0.subreg_l32 30 %1 = COPY %0.subreg_l64 31 %2 = LARL @g_167 32 STC %1.subreg_l32, %2, 8, $noreg 33 34... 35