File: branch-fold-test.ll

package info (click to toggle)
llvm-toolchain-3.7 1%3A3.7.1-5
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 345,556 kB
  • ctags: 362,199
  • sloc: cpp: 2,156,381; ansic: 458,339; objc: 91,547; python: 89,988; asm: 86,305; sh: 21,479; makefile: 6,853; perl: 5,601; ml: 5,458; pascal: 3,933; lisp: 2,429; xml: 686; cs: 239; php: 202; csh: 117
file content (17 lines) | stat: -rw-r--r-- 498 bytes parent folder | download | duplicates (22) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
; This test ensures that the simplifycfg pass continues to constant fold
; terminator instructions.

; RUN: opt < %s -simplifycfg -S | not grep br

define i32 @test(i32 %A, i32 %B) {
J:
        %C = add i32 %A, 12             ; <i32> [#uses=2]
        br i1 true, label %L, label %K
L:              ; preds = %J
        %D = add i32 %C, %B             ; <i32> [#uses=1]
        ret i32 %D
K:              ; preds = %J
        %E = add i32 %C, %B             ; <i32> [#uses=1]
        ret i32 %E
}