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# RUN: llc -verify-machineinstrs -run-pass regallocfast -mtriple s390x-ibm-linux -o - %s | FileCheck %s
--- |
@g_167 = external global [5 x i64], align 8
define void @main() local_unnamed_addr {
ret void
}
...
# Make sure the usage of different subregisters on the same virtual register
# does not result in invalid kill flags.
# PR33677
---
name: main
alignment: 2
tracksRegLiveness: true
registers:
- { id: 0, class: gr128bit }
- { id: 1, class: gr64bit }
- { id: 2, class: addr64bit }
# CHECK: %r0q = L128
# CHECK-NEXT: %r0l = COPY renamable %r1l
# Although R0L partially redefines R0Q, it must not mark R0Q as kill
# because R1D is still live through that instruction.
# CHECK-NOT: implicit killed %r0q
# CHECK-NEXT: %r2d = COPY renamable %r1d
# CHECK-NEXT: LARL
body: |
bb.0:
%0.subreg_hl32 = COPY %0.subreg_l32
%1 = COPY %0.subreg_l64
%2 = LARL @g_167
STC %1.subreg_l32, %2, 8, %noreg
...
|
