File: dag-divergence.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (30 lines) | stat: -rw-r--r-- 1,159 bytes parent folder | download | duplicates (11)
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-amd-amdhsa -mcpu=fiji -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s

; GCN-LABEL: {{^}}private_load_maybe_divergent:
; GCN: buffer_load_dword
; GCN-NOT: s_load_dword s
; GCN: flat_load_dword
; GCN-NOT: s_load_dword s
define amdgpu_kernel void @private_load_maybe_divergent(i32 addrspace(4)* %k, i32* %flat) {
  %load = load volatile i32, i32 addrspace(5)* undef, align 4
  %gep = getelementptr inbounds i32, i32 addrspace(4)* %k, i32 %load
  %maybe.not.uniform.load = load i32, i32 addrspace(4)* %gep, align 4
  store i32 %maybe.not.uniform.load, i32 addrspace(1)* undef
  ret void
}

; GCN-LABEL: {{^}}flat_load_maybe_divergent:
; GCN: s_load_dwordx4
; GCN-NOT: s_load
; GCN: flat_load_dword
; GCN-NOT: s_load
; GCN: flat_load_dword
; GCN-NOT: s_load
; GCN: flat_store_dword
define amdgpu_kernel void @flat_load_maybe_divergent(i32 addrspace(4)* %k, i32* %flat) {
  %load = load i32, i32* %flat, align 4
  %gep = getelementptr inbounds i32, i32 addrspace(4)* %k, i32 %load
  %maybe.not.uniform.load = load i32, i32 addrspace(4)* %gep, align 4
  store i32 %maybe.not.uniform.load, i32 addrspace(1)* undef
  ret void
}