File: 2008-11-02-QuadraticCrash.ll

package info (click to toggle)
llvm-2.7 2.7-6
  • links: PTS
  • area: main
  • in suites: squeeze
  • size: 59,992 kB
  • ctags: 49,499
  • sloc: cpp: 373,792; ansic: 16,885; sh: 12,614; asm: 6,809; ada: 3,083; ml: 2,942; python: 2,671; perl: 2,404; makefile: 1,691; pascal: 1,235; exp: 399; objc: 291; lisp: 184; csh: 117; xml: 38; f90: 36
file content (21 lines) | stat: -rw-r--r-- 516 bytes parent folder | download | duplicates (23) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
; RUN: opt < %s -analyze -scalar-evolution
; PR1827

declare void @use(i32)

define void @foo() {
entry:
	br label %loop_1

loop_1:		; preds = %loop_1, %entry
	%a = phi i32 [ 2, %entry ], [ %b, %loop_1 ]		; <i32> [#uses=2]
	%c = phi i32 [ 5, %entry ], [ %d, %loop_1 ]		; <i32> [#uses=1]
	%b = add i32 %a, 1		; <i32> [#uses=1]
	%d = add i32 %c, %a		; <i32> [#uses=3]
	%A = icmp ult i32 %d, 50		; <i1> [#uses=1]
	br i1 %A, label %loop_1, label %endloop

endloop:		; preds = %loop_1
	call void @use(i32 %d)
	ret void
}