File: implicit-def-muse.ll

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (23 lines) | stat: -rw-r--r-- 744 bytes parent folder | download | duplicates (2) 
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 -march=amdgcn -stop-after=amdgpu-isel -verify-machineinstrs -o - %s | FileCheck %s

; CHECK-LABEL: vcopy_i1_undef
; CHECK: [[IMPDEF0:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; CHECK-NOT: COPY
; CHECK: [[IMPDEF1:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; CHECK-NOT: COPY [[IMPDEF0]]
; CHECK-NOT: COPY [[IMPDEF1]]
; CHECK: .false:
define <2 x float> @vcopy_i1_undef(ptr addrspace(1) %p, i1 %c0) {
entry:
  br i1 %c0, label %exit, label %false

false:
  %x = load <2 x float>, ptr addrspace(1) %p
  %cmp = fcmp one <2 x float> %x, zeroinitializer
  br label %exit

exit:
  %c = phi <2 x i1> [ undef, %entry ], [ %cmp, %false ]
  %ret = select <2 x i1> %c, <2 x float> <float 2.0, float 2.0>, <2 x float> <float 4.0, float 4.0>
  ret <2 x float> %ret
}