File: remove-global-vars.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 (24 lines) | stat: -rw-r--r-- 818 bytes parent folder | download | duplicates (2) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
; Test that llvm-reduce can remove uninteresting Global Variables as well as
; their direct uses (which in turn are replaced with 'undef').
;
; RUN: llvm-reduce --test %python --test-arg %p/Inputs/remove-global-vars.py %s -o %t
; RUN: cat %t | FileCheck -implicit-check-not=uninteresting %s

; CHECK: @interesting = global
@interesting = global i32 0, align 4
@uninteresting = global i32 1, align 4

define i32 @main() {
entry:
  %0 = load i32, i32* @uninteresting, align 4
  ; CHECK: store i32 undef, i32* @interesting, align 4
  store i32 %0, i32* @interesting, align 4

  ; CHECK: load i32, i32* @interesting, align 4
  %1 = load i32, i32* @interesting, align 4
  store i32 %1, i32* @uninteresting, align 4

  ; CHECK: store i32 5, i32* @interesting, align 4
  store i32 5, i32* @interesting, align 4
  ret i32 0
}