File: promote-alloca-array-allocation.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 (48 lines) | stat: -rw-r--r-- 2,349 bytes parent folder | download | duplicates (12)
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
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
; RUN: opt -S -mtriple=amdgcn-amd-amdhsa -passes=amdgpu-promote-alloca < %s | FileCheck %s

; Make sure this allocates the correct size if the alloca has a non-0
; number of elements.

; CHECK-LABEL: @array_alloca(
; CHECK: %stack = alloca i32, i32 5, align 4, addrspace(5)
define amdgpu_kernel void @array_alloca(ptr addrspace(1) nocapture %out, ptr addrspace(1) nocapture %in) #0 {
entry:
  %stack = alloca i32, i32 5, align 4, addrspace(5)
  %ld0 = load i32, ptr addrspace(1) %in, align 4
  %arrayidx1 = getelementptr inbounds i32, ptr addrspace(5) %stack, i32 %ld0
  store i32 4, ptr addrspace(5) %arrayidx1, align 4
  %arrayidx2 = getelementptr inbounds i32, ptr addrspace(1) %in, i32 1
  %ld1 = load i32, ptr addrspace(1) %arrayidx2, align 4
  %arrayidx3 = getelementptr inbounds i32, ptr addrspace(5) %stack, i32 %ld1
  store i32 5, ptr addrspace(5) %arrayidx3, align 4
  %ld2 = load i32, ptr addrspace(5) %stack, align 4
  store i32 %ld2, ptr addrspace(1) %out, align 4
  %arrayidx12 = getelementptr inbounds i32, ptr addrspace(5) %stack, i32 1
  %ld3 = load i32, ptr addrspace(5) %arrayidx12
  %arrayidx13 = getelementptr inbounds i32, ptr addrspace(1) %out, i32 1
  store i32 %ld3, ptr addrspace(1) %arrayidx13
  ret void
}

; CHECK-LABEL: @array_alloca_dynamic(
; CHECK: %stack = alloca i32, i32 %size, align 4, addrspace(5)
define amdgpu_kernel void @array_alloca_dynamic(ptr addrspace(1) nocapture %out, ptr addrspace(1) nocapture %in, i32 %size) #0 {
entry:
  %stack = alloca i32, i32 %size, align 4, addrspace(5)
  %ld0 = load i32, ptr addrspace(1) %in, align 4
  %arrayidx1 = getelementptr inbounds i32, ptr addrspace(5) %stack, i32 %ld0
  store i32 4, ptr addrspace(5) %arrayidx1, align 4
  %arrayidx2 = getelementptr inbounds i32, ptr addrspace(1) %in, i32 1
  %ld1 = load i32, ptr addrspace(1) %arrayidx2, align 4
  %arrayidx3 = getelementptr inbounds i32, ptr addrspace(5) %stack, i32 %ld1
  store i32 5, ptr addrspace(5) %arrayidx3, align 4
  %ld2 = load i32, ptr addrspace(5) %stack, align 4
  store i32 %ld2, ptr addrspace(1) %out, align 4
  %arrayidx12 = getelementptr inbounds i32, ptr addrspace(5) %stack, i32 1
  %ld3 = load i32, ptr addrspace(5) %arrayidx12
  %arrayidx13 = getelementptr inbounds i32, ptr addrspace(1) %out, i32 1
  store i32 %ld3, ptr addrspace(1) %arrayidx13
  ret void
}

attributes #0 = { nounwind }