File: insert-subvector-unused-scratch.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 (28 lines) | stat: -rw-r--r-- 1,021 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
26
27
28
 
; RUN: llc -mtriple amdgcn-amd-- -mcpu=bonaire -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s

; Before the fix that this test was committed with, this code would leave
; an unused stack slot, causing ScratchSize to be non-zero.

; GCN-LABEL: store_v3i32:
; GCN:        ds_read_b96
; GCN:        ds_write_b96
; GCN: ScratchSize: 0
define amdgpu_kernel void @store_v3i32(<3 x i32> addrspace(3)* %out, <3 x i32> %a) nounwind {
  %val = load <3 x i32>, <3 x i32> addrspace(3)* %out
  %val.1 = add <3 x i32> %a, %val
  store <3 x i32> %val.1, <3 x i32> addrspace(3)* %out, align 16
  ret void
}

; GCN-LABEL: store_v5i32:
; GCN:        ds_read_b128
; GCN:        ds_read_b32
; GCN:        ds_write_b32
; GCN:        ds_write_b128
; GCN: ScratchSize: 0
define amdgpu_kernel void @store_v5i32(<5 x i32> addrspace(3)* %out, <5 x i32> %a) nounwind {
  %val = load <5 x i32>, <5 x i32> addrspace(3)* %out
  %val.1 = add <5 x i32> %a, %val
  store <5 x i32> %val.1, <5 x i32> addrspace(3)* %out, align 16
  ret void
}