File: greedy-remark-crash-unassigned-reg.mir

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.8-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,388 kB
  • sloc: cpp: 7,438,767; ansic: 1,393,871; asm: 1,012,926; python: 241,728; f90: 86,635; objc: 75,411; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (36 lines) | stat: -rw-r--r-- 1,038 bytes parent folder | download | duplicates (13) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
 
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 \
# RUN:   -start-before=greedy,0 -stop-after=virtregrewriter,0 -pass-remarks='.*' -pass-remarks-output=%t.yaml -o /dev/null %s
# RUN: FileCheck %s < %t.yaml

# CHECK: Name:            SpillReloadCopies
# CHECK-NEXT: Function:        func
# CHECK-NEXT: Args:
# CHECK-NEXT: - NumVRCopies:     '3'
# CHECK-NEXT: - String:          ' virtual registers copies '

# Make sure the remarks do not crash with subregisters on unassigned
# virtual register copies.

---
name:            func
tracksRegLiveness: true
body:             |
  bb.0:
    liveins: $vgpr0_vgpr1, $vgpr2_vgpr3, $sgpr1

  ; Unassigned dest with subreg
  undef %0.sub0:vreg_64 = COPY $vgpr0_vgpr1

  ; unassigned src and dest with subregs
  undef %1.sub1:vreg_64 = COPY %0.sub0

   %2:vreg_64 = COPY $vgpr2_vgpr3

  ; Unassigned src with subregs
  $vgpr0 = COPY %2.sub0

  ; Dummy SGPR to allocate to ensure allocation ran.
  %3:sreg_32 = COPY $sgpr1
  S_ENDPGM 0, implicit %0, implicit %1, implicit $vgpr0, implicit %3

...