File: test-phi.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (35 lines) | stat: -rw-r--r-- 703 bytes parent folder | download | duplicates (12) 
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
 
; RUN: %lli -jit-kind=mcjit %s > /dev/null
; RUN: %lli %s > /dev/null

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

define void @blah(ptr %X) {
; <label>:0
	br label %T
T:		; preds = %Dead, %0
	phi ptr [ %X, %0 ], [ @Y, %Dead ]		; <ptr>: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
}