instcombine fails

[llvmbot]

Bugzilla Link	4487
Resolution	FIXED
Resolved on	Jul 01, 2009 16:42
Version	trunk
OS	Linux
Reporter	LLVM Bugzilla Contributor
CC	@sunfishcode,@nlewycky

Extended Description

"opt -instcombine" fails on the following test:

---

define i32 @​test(i64 %a) {
bb20:
%t1 = bitcast i64 %a to <2 x i32>
%t2 = bitcast i64 %a to <2 x i32>
%t3 = xor <2 x i32> %t1, %t2
%t4 = extractelement <2 x i32> %t3, i32 0
ret i32 %t4
}

[sunfishcode]

This is fixed here:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090629/079950.html