File: address-taken-externalize.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (37 lines) | stat: -rw-r--r-- 1,039 bytes parent folder | download | duplicates (3) 
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
 
; RUN: llvm-split -o %t %s -j 2 -mtriple amdgcn-amd-amdhsa -amdgpu-module-splitting-large-function-threshold=0
; RUN: llvm-dis -o - %t0 | FileCheck --check-prefix=CHECK0 %s
; RUN: llvm-dis -o - %t1 | FileCheck --check-prefix=CHECK1 %s

; 2 kernels:
;   - A is isolated
;   - B is storing @HelperA/B's address
;
; The helper functions should get externalized (become hidden w/ external linkage)

; CHECK0: define hidden void @HelperA()
; CHECK0: define hidden void @HelperB()
; CHECK0: define amdgpu_kernel void @A()
; CHECK0: declare amdgpu_kernel void @B(i1, ptr)

; CHECK1: declare hidden void @HelperA()
; CHECK1: declare hidden void @HelperB()
; CHECK1: declare amdgpu_kernel void @A()
; CHECK1: define amdgpu_kernel void @B(i1 %cond, ptr %dst)

define internal void @HelperA() {
  ret void
}

define internal void @HelperB() {
  ret void
}

define amdgpu_kernel void @A() {
  ret void
}

define amdgpu_kernel void @B(i1 %cond, ptr %dst) {
  %addr = select i1 %cond, ptr @HelperA, ptr @HelperB
  store ptr %addr, ptr %dst
  ret void
}