File: lds-atomic-fadd.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (25 lines) | stat: -rw-r--r-- 1,344 bytes parent folder | download | duplicates (4)
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
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,VI %s
; RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX9 %s

declare float @llvm.amdgcn.ds.fadd.f32(float addrspace(3)* nocapture, float, i32, i32, i1)

; GCN-LABEL: {{^}}lds_ds_fadd:
; VI-DAG: s_mov_b32 m0
; GFX9-NOT: m0
; GCN-DAG: v_mov_b32_e32 [[V0:v[0-9]+]], 0x42280000
; GCN: ds_add_rtn_f32 [[V2:v[0-9]+]], [[V1:v[0-9]+]], [[V0]] offset:32
; GCN: ds_add_f32 [[V3:v[0-9]+]], [[V0]] offset:64
; GCN: s_waitcnt lgkmcnt(1)
; GCN: ds_add_rtn_f32 {{v[0-9]+}}, {{v[0-9]+}}, [[V2]]
define amdgpu_kernel void @lds_ds_fadd(float addrspace(1)* %out, float addrspace(3)* %ptrf, i32 %idx) {
  %idx.add = add nuw i32 %idx, 4
  %shl0 = shl i32 %idx.add, 3
  %shl1 = shl i32 %idx.add, 4
  %ptr0 = inttoptr i32 %shl0 to float addrspace(3)*
  %ptr1 = inttoptr i32 %shl1 to float addrspace(3)*
  %a1 = call float @llvm.amdgcn.ds.fadd.f32(float addrspace(3)* %ptr0, float 4.2e+1, i32 0, i32 0, i1 false)
  %a2 = call float @llvm.amdgcn.ds.fadd.f32(float addrspace(3)* %ptr1, float 4.2e+1, i32 0, i32 0, i1 false)
  %a3 = call float @llvm.amdgcn.ds.fadd.f32(float addrspace(3)* %ptrf, float %a1, i32 0, i32 0, i1 false)
  store float %a3, float addrspace(1)* %out
  ret void
}