File: 2003-04-24-MultipleIdenticalSuccessors.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (16 lines) | stat: -rw-r--r-- 439 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
; Mem2reg used to only add one incoming value to a PHI node, even if it had
; multiple incoming edges from a block.
;
; RUN: opt < %s -passes=mem2reg -disable-output

define i32 @test(i1 %c1, i1 %c2) {
	%X = alloca i32		; <i32*> [#uses=2]
	br i1 %c1, label %Exit, label %B2
B2:		; preds = %0
	store i32 2, i32* %X
	br i1 %c2, label %Exit, label %Exit
Exit:		; preds = %B2, %B2, %0
	%Y = load i32, i32* %X		; <i32> [#uses=1]
	ret i32 %Y
}