File: spill-to-smem-m0.ll

package info (click to toggle)
llvm-toolchain-6.0 1%3A6.0.1-10
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 598,080 kB
  • sloc: cpp: 3,046,253; ansic: 595,057; asm: 271,965; python: 128,926; objc: 106,554; sh: 21,906; lisp: 10,191; pascal: 6,094; ml: 5,544; perl: 5,265; makefile: 2,227; cs: 2,027; xml: 686; php: 212; csh: 117
file content (22 lines) | stat: -rw-r--r-- 711 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
; RUN: llc -O0 -march=amdgcn -mcpu=fiji -amdgpu-spill-sgpr-to-smem=1 -verify-machineinstrs -stop-before=prologepilog < %s

; Spill to SMEM clobbers M0. Check that the implicit-def dead operand is present
; in the pseudo instructions.

; CHECK-LABEL: {{^}}spill_sgpr:
; CHECK: SI_SPILL_S32_SAVE {{.*}}, implicit-def dead %m0
; CHECK: SI_SPILL_S32_RESTORE {{.*}}, implicit-def dead %m0
define amdgpu_kernel void @spill_sgpr(i32 addrspace(1)* %out, i32 %in) #0 {
  %sgpr = call i32  asm sideeffect "; def $0", "=s" () #0
  %cmp = icmp eq i32 %in, 0
  br i1 %cmp, label %bb0, label %ret

bb0:
  call void asm sideeffect "; use $0", "s"(i32 %sgpr) #0
  br label %ret

ret:
  ret void
}

attributes #0 = { nounwind }