File: fastregalloc-illegal-subreg-physreg.mir

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (28 lines) | stat: -rw-r--r-- 1,117 bytes parent folder | download | duplicates (5) 
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
 
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -run-pass=regallocfast -o - %s | FileCheck %s

# This would hit "Illegal subregister index for physical register" verifier error since
# tied operands would skip dropping the subregister index.

---
name:   invalid_subreg_index
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body:             |
  bb.0:
    liveins: $vgpr0, $sgpr0

    ; CHECK-LABEL: name: invalid_subreg_index
    ; CHECK: liveins: $vgpr0, $sgpr0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: $m0 = COPY renamable $sgpr0
    ; CHECK-NEXT: undef renamable $vgpr1 = V_INTERP_P2_F32 undef $vgpr1, undef $vgpr0, 0, 1, implicit $mode, implicit $m0, implicit $exec, implicit-def dead $vgpr0_vgpr1
    ; CHECK-NEXT: S_ENDPGM 0, implicit killed renamable $sgpr0
    %0:vgpr_32 = COPY $vgpr0
    %1:sgpr_32 = COPY $sgpr0
    $m0 = COPY %1
    undef %2.sub1:vreg_64 = V_INTERP_P2_F32 undef %2.sub1, undef %0:vgpr_32, 0, 1, implicit $mode, implicit $m0, implicit $exec
    S_ENDPGM 0, implicit %1

...