File: test-phi.ll

package info (click to toggle)
llvm-3.0 3.0-10
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 75,412 kB
  • sloc: cpp: 468,043; asm: 109,345; ansic: 13,782; sh: 12,935; ml: 4,716; python: 4,351; perl: 2,096; makefile: 1,905; pascal: 1,578; exp: 389; xml: 283; lisp: 187; csh: 117
file content (34 lines) | stat: -rw-r--r-- 663 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
25
26
27
28
29
30
31
32
33
34
; RUN: lli %s > /dev/null

; test phi node
@Y = global i32 6		; <i32*> [#uses=1]

define void @blah(i32* %X) {
; <label>:0
	br label %T
T:		; preds = %Dead, %0
	phi i32* [ %X, %0 ], [ @Y, %Dead ]		; <i32*>:1 [#uses=0]
	ret void
Dead:		; No predecessors!
	br label %T
}

define i32 @test(i1 %C) {
; <label>:0
	br i1 %C, label %T, label %T
T:		; preds = %0, %0
	%X = phi i32 [ 123, %0 ], [ 123, %0 ]		; <i32> [#uses=1]
	ret i32 %X
}

define i32 @main() {
; <label>:0
	br label %Test
Test:		; preds = %Dead, %0
	%X = phi i32 [ 0, %0 ], [ %Y, %Dead ]		; <i32> [#uses=1]
	ret i32 %X
Dead:		; No predecessors!
	%Y = ashr i32 12, 4		; <i32> [#uses=1]
	br label %Test
}