File: opt_exec_copy_fold.mir

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; 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 (23 lines) | stat: -rw-r--r-- 665 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
# RUN: llc -run-pass si-optimize-exec-masking-pre-ra -mtriple=amdgcn -verify-machineinstrs -o - %s | FileCheck --check-prefixes=GCN %s
---
# GCN-LABEL: name: opt_exec_copy_fold
# GCN:             %2:vreg_64 = COPY $exec
name:            opt_exec_copy_fold
tracksRegLiveness: true
liveins:
  - { reg: '$sgpr0_sgpr1' }
body:             |
  bb.0:
    liveins: $sgpr0_sgpr1

    %0:vgpr_32 = V_CNDMASK_B32_e64 0, 0, 0, 1, $sgpr0_sgpr1, implicit $exec
    %1:sreg_64 = V_CMP_NE_U32_e64 0, %0, implicit $exec
    %2:vreg_64 = COPY $exec
    %3:sreg_64 = V_CMP_EQ_U64_e64 %1, %2, implicit $exec
    $scc = COPY %3
    S_CBRANCH_SCC0 %bb.1, implicit $scc
  
  bb.1:
...