File: llvm.amdgcn.s.getreg.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 (27 lines) | stat: -rw-r--r-- 1,248 bytes parent folder | download | duplicates (8) 
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
 
; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=kaveri -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=fiji -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s

; GCN-LABEL: {{^}}s_getreg_test:
; GCN: s_getreg_b32 s{{[0-9]+}}, hwreg(HW_REG_LDS_ALLOC, 8, 23)
define amdgpu_kernel void @s_getreg_test(i32 addrspace(1)* %out) { ; simm16=45574 for lds size.
  %lds_size_64dwords = call i32 @llvm.amdgcn.s.getreg(i32 45574)
  %lds_size_bytes = shl i32 %lds_size_64dwords, 8
  store i32 %lds_size_bytes, i32 addrspace(1)* %out
  ret void
}

; Call site has additional readnone knowledge.
; GCN-LABEL: {{^}}readnone_s_getreg_test:
; GCN: s_getreg_b32 s{{[0-9]+}}, hwreg(HW_REG_LDS_ALLOC, 8, 23)
define amdgpu_kernel void @readnone_s_getreg_test(i32 addrspace(1)* %out) { ; simm16=45574 for lds size.
  %lds_size_64dwords = call i32 @llvm.amdgcn.s.getreg(i32 45574) #1
  %lds_size_bytes = shl i32 %lds_size_64dwords, 8
  store i32 %lds_size_bytes, i32 addrspace(1)* %out
  ret void
}

declare i32 @llvm.amdgcn.s.getreg(i32) #0

attributes #0 = { nounwind readonly }
attributes #1 = { nounwind readnone }