File: kernarg-stack-alignment.ll

package info (click to toggle)
llvm-toolchain-21 1%3A21.1.6-3
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 2,245,028 kB
  • sloc: cpp: 7,619,726; ansic: 1,434,018; asm: 1,058,748; python: 252,740; f90: 94,671; objc: 70,685; lisp: 42,813; pascal: 18,401; sh: 8,601; ml: 5,111; perl: 4,720; makefile: 3,675; awk: 3,523; javascript: 2,409; xml: 892; fortran: 770
file content (44 lines) | stat: -rw-r--r-- 1,231 bytes parent folder | download | duplicates (9)
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
; RUN: llc -O0 -mtriple=amdgcn -verify-machineinstrs < %s | FileCheck %s

; Test that the alignment of kernel arguments does not impact the
; alignment of the stack

; CHECK-LABEL: {{^}}no_args:
; CHECK: ScratchSize: 8{{$}}
define amdgpu_kernel void @no_args() {
  %alloca = alloca i8, addrspace(5)
  store volatile i8 0, ptr addrspace(5) %alloca
  ret void
}

; CHECK-LABEL: {{^}}force_align32:
; CHECK: ScratchSize: 8{{$}}
define amdgpu_kernel void @force_align32(<8 x i32>) {
  %alloca = alloca i8, addrspace(5)
  store volatile i8 0, ptr addrspace(5) %alloca
  ret void
}

; CHECK-LABEL: {{^}}force_align64:
; CHECK: ScratchSize: 8{{$}}
define amdgpu_kernel void @force_align64(<16 x i32>) {
  %alloca = alloca i8, addrspace(5)
  store volatile i8 0, ptr addrspace(5) %alloca
  ret void
}

; CHECK-LABEL: {{^}}force_align128:
; CHECK: ScratchSize: 8{{$}}
define amdgpu_kernel void @force_align128(<32 x i32>) {
  %alloca = alloca i8, addrspace(5)
  store volatile i8 0, ptr addrspace(5) %alloca
  ret void
}

; CHECK-LABEL: {{^}}force_align256:
; CHECK: ScratchSize: 8{{$}}
define amdgpu_kernel void @force_align256(<64 x i32>) {
  %alloca = alloca i8, addrspace(5)
  store volatile i8 0, ptr addrspace(5) %alloca
  ret void
}