File: 2009-02-08-CoalescerBug.ll

package info (click to toggle)
llvm 2.6-9.1
  • links: PTS
  • area: main
  • in suites: squeeze
  • size: 57,604 kB
  • ctags: 44,336
  • sloc: cpp: 344,766; sh: 12,407; ansic: 10,617; ada: 3,070; ml: 2,505; perl: 2,496; makefile: 1,426; pascal: 1,163; exp: 389; asm: 307; python: 298; objc: 260; lisp: 182; csh: 117; xml: 38; f90: 36; tcl: 20
file content (22 lines) | stat: -rw-r--r-- 672 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
; RUN: llvm-as < %s | llc -march=x86
; PR3486

define i32 @foo(i8 signext %p_26) nounwind {
entry:
	%0 = icmp eq i8 %p_26, 0		; <i1> [#uses=2]
	%or.cond = or i1 false, %0		; <i1> [#uses=2]
	%iftmp.1.0 = zext i1 %or.cond to i16		; <i16> [#uses=1]
	br i1 %0, label %bb.i, label %bar.exit

bb.i:		; preds = %entry
	%1 = zext i1 %or.cond to i32		; <i32> [#uses=1]
	%2 = sdiv i32 %1, 0		; <i32> [#uses=1]
	%3 = trunc i32 %2 to i16		; <i16> [#uses=1]
	br label %bar.exit

bar.exit:		; preds = %bb.i, %entry
	%4 = phi i16 [ %3, %bb.i ], [ %iftmp.1.0, %entry ]		; <i16> [#uses=1]
	%5 = trunc i16 %4 to i8		; <i8> [#uses=1]
	%6 = sext i8 %5 to i32		; <i32> [#uses=1]
	ret i32 %6
}