xref: /llvm-project/llvm/test/CodeGen/SystemZ/regalloc-fast-invalid-kill-flag.mir (revision 1bc8b3258e6d42f702fb11eb60d84d0e23935e3e)
1# RUN: llc -verify-machineinstrs -run-pass regallocfast -mtriple s390x-ibm-linux -o - %s | FileCheck %s
2# RUN: llc -verify-machineinstrs -passes=regallocfast -mtriple s390x-ibm-linux -o - %s | FileCheck %s
3--- |
4
5  @g_167 = external global [5 x i64], align 8
6  define void @main() local_unnamed_addr {
7    ret void
8  }
9...
10# Make sure the usage of different subregisters on the same virtual register
11# does not result in invalid kill flags.
12# PR33677
13---
14name:            main
15alignment:       4
16tracksRegLiveness: true
17# CHECK: $r0l = COPY renamable $r1l
18# Although R0L partially redefines R0Q, it must not mark R0Q as kill
19# because R1D is still live through that instruction.
20# CHECK-NOT: implicit killed $r0q
21# CHECK-NEXT: {{\$r[0-9]+d}} = COPY renamable $r1d
22# CHECK-NEXT: LARL
23body:             |
24  bb.0:
25    %0 : gr128bit = IMPLICIT_DEF
26    %0.subreg_l32 = COPY %0.subreg_ll32
27    %1 : gr64bit = COPY %0.subreg_l64
28    %2 : addr64bit = LARL @g_167
29    STC %1.subreg_l32, %2, 8, $noreg
30
31...
32