File: inst-select-amdgcn.readfirstlane.mir

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (65 lines) | stat: -rw-r--r-- 2,261 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
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn -mcpu=tahiti -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=2 -pass-remarks-missed='gisel*' %s -o - 2> %t | FileCheck -check-prefix=GCN %s
# RUN: FileCheck -check-prefix=ERR %s < %t

# ERR: remark: <unknown>:0:0: cannot select: %1:sgpr(s32) = G_INTRINSIC_CONVERGENT intrinsic(@llvm.amdgcn.readfirstlane), %0:sgpr(s32) (in function: readfirstlane_s)

---
name: readfirstlane_v
legalized: true
regBankSelected: true
tracksRegLiveness: true

body: |
  bb.0:
    liveins: $vgpr0
    ; GCN-LABEL: name: readfirstlane_v
    ; GCN: liveins: $vgpr0
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
    ; GCN-NEXT: [[V_READFIRSTLANE_B32_:%[0-9]+]]:sreg_32 = V_READFIRSTLANE_B32 [[COPY]], implicit $exec
    ; GCN-NEXT: S_ENDPGM 0, implicit [[V_READFIRSTLANE_B32_]]
    %0:vgpr(s32) = COPY $vgpr0
    %1:sgpr(s32) = G_INTRINSIC_CONVERGENT intrinsic(@llvm.amdgcn.readfirstlane), %0
    S_ENDPGM 0, implicit %1
...

---
name: readfirstlane_v_imm
legalized: true
regBankSelected: true
tracksRegLiveness: true

body: |
  bb.0:

    ; GCN-LABEL: name: readfirstlane_v_imm
    ; GCN: [[V_MOV_B32_e32_:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 123, implicit $exec
    ; GCN-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY [[V_MOV_B32_e32_]]
    ; GCN-NEXT: [[S_MOV_B32_:%[0-9]+]]:sreg_32 = S_MOV_B32 [[COPY]]
    ; GCN-NEXT: S_ENDPGM 0, implicit [[S_MOV_B32_]]
    %0:vgpr(s32) = G_CONSTANT i32 123
    %1:sgpr(s32) = G_INTRINSIC_CONVERGENT intrinsic(@llvm.amdgcn.readfirstlane), %0
    S_ENDPGM 0, implicit %1
...

# Make sure this fails to select
---
name: readfirstlane_s
legalized: true
regBankSelected: true
tracksRegLiveness: true

body: |
  bb.0:
    liveins: $sgpr0
    ; GCN-LABEL: name: readfirstlane_s
    ; GCN: liveins: $sgpr0
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: [[COPY:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
    ; GCN-NEXT: [[INT:%[0-9]+]]:sgpr(s32) = G_INTRINSIC_CONVERGENT intrinsic(@llvm.amdgcn.readfirstlane), [[COPY]](s32)
    ; GCN-NEXT: S_ENDPGM 0, implicit [[INT]](s32)
    %0:sgpr(s32) = COPY $sgpr0
    %1:sgpr(s32) = G_INTRINSIC_CONVERGENT intrinsic(@llvm.amdgcn.readfirstlane), %0
    S_ENDPGM 0, implicit %1
...