File: 2005-12-02-TailCallBug.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 (22 lines) | stat: -rw-r--r-- 680 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
; PR672
; RUN: lli %s
; XFAIL: arm

define i32 @main() {
	%f = bitcast i32 (i32, i32*, i32)* @check_tail to i32*		; <i32*> [#uses=1]
	%res = tail call fastcc i32 @check_tail( i32 10, i32* %f, i32 10 )		; <i32> [#uses=1]
	ret i32 %res
}

define fastcc i32 @check_tail(i32 %x, i32* %f, i32 %g) {
	%tmp1 = icmp sgt i32 %x, 0		; <i1> [#uses=1]
	br i1 %tmp1, label %if-then, label %if-else
if-then:		; preds = %0
	%fun_ptr = bitcast i32* %f to i32 (i32, i32*, i32)*		; <i32 (i32, i32*, i32)*> [#uses=1]
	%arg1 = add i32 %x, -1		; <i32> [#uses=1]
	%res = tail call fastcc i32 %fun_ptr( i32 %arg1, i32* %f, i32 %g )		; <i32> [#uses=1]
	ret i32 %res
if-else:		; preds = %0
	ret i32 %x
}