1 # RUN: llc -verify-machineinstrs -run-pass regallocfast -mtriple s390x-ibm-linux -o - %s | FileCheck %s
4 @g_167 = external global [5 x i64], align 8
5 define void @main() local_unnamed_addr {
9 # Make sure the usage of different subregisters on the same virtual register
10 # does not result in invalid kill flags.
15 tracksRegLiveness: true
16 # CHECK: $r0l = COPY renamable $r1l
17 # Although R0L partially redefines R0Q, it must not mark R0Q as kill
18 # because R1D is still live through that instruction.
19 # CHECK-NOT: implicit killed $r0q
20 # CHECK-NEXT: {{\$r[0-9]+d}} = COPY renamable $r1d
24 %0 : gr128bit = IMPLICIT_DEF
25 %0.subreg_hl32 = COPY %0.subreg_l32
26 %1 : gr64bit = COPY %0.subreg_l64
27 %2 : addr64bit = LARL @g_167
28 STC %1.subreg_l32, %2, 8, $noreg