File: divergence-driven-negsubinlineconst.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,998,492 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 (30 lines) | stat: -rw-r--r-- 1,406 bytes parent folder | download | duplicates (7)
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
; RUN:  llc -mtriple=amdgcn -stop-after=amdgpu-isel < %s | FileCheck -enable-var-scope -check-prefixes=GCN,SI %s
; RUN:  llc -mtriple=amdgcn -mcpu=gfx900 -stop-after=amdgpu-isel < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX900 %s
; RUN:  llc -mtriple=amdgcn -enable-new-pm -stop-after=amdgpu-isel < %s | FileCheck -enable-var-scope -check-prefixes=GCN,SI %s
; RUN:  llc -mtriple=amdgcn -mcpu=gfx900 -enable-new-pm -stop-after=amdgpu-isel < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX900 %s

; GCN-LABEL: name: uniform_add_SIC
; GCN: S_SUB_I32 killed %{{[0-9]+}}, 32
define amdgpu_kernel void @uniform_add_SIC(ptr addrspace(1) %out, ptr addrspace(1) %in) #0 {
  %a = load i32, ptr addrspace(1) %in
  %result = add i32 %a, -32
  store i32 %result, ptr addrspace(1) %out
  ret void
}

; GCN-LABEL: name: divergent_add_SIC
; SI: V_SUB_CO_U32_e64 killed %{{[0-9]+}}, 32
; GFX900: V_SUB_U32_e64 killed %{{[0-9]+}}, 32
define amdgpu_kernel void @divergent_add_SIC(ptr addrspace(1) %out, ptr addrspace(1) %in) #0 {
  %tid = call i32 @llvm.amdgcn.workitem.id.x()
  %gep = getelementptr inbounds i32, ptr addrspace(1) %in, i32 %tid
  %a = load volatile i32, ptr addrspace(1) %gep
  %result = add i32 %a, -32
  store i32 %result, ptr addrspace(1) %out
  ret void
}

declare i32 @llvm.amdgcn.workitem.id.x() #1

attributes #0 = { nounwind }
attributes #1 = { nounwind readnone speculatable }