| ; RUN: llc < %s -mtriple=i686-- | 
 | ; PR2775 | 
 |  | 
 | define i32 @func_77(i8 zeroext %p_79) nounwind { | 
 | entry: | 
 | 	%0 = tail call i32 (...) @func_43(i32 1) nounwind		; <i32> [#uses=1] | 
 | 	%1 = icmp eq i32 %0, 0		; <i1> [#uses=1] | 
 | 	br i1 %1, label %bb3, label %bb | 
 |  | 
 | bb:		; preds = %entry | 
 | 	br label %bb3 | 
 |  | 
 | bb3:		; preds = %bb, %entry | 
 | 	%p_79_addr.0 = phi i8 [ 0, %bb ], [ %p_79, %entry ]		; <i8> [#uses=1] | 
 | 	%2 = zext i8 %p_79_addr.0 to i32		; <i32> [#uses=2] | 
 | 	%3 = zext i1 false to i32		; <i32> [#uses=2] | 
 | 	%4 = tail call i32 (...) @rshift_u_s(i32 1) nounwind		; <i32> [#uses=0] | 
 | 	%5 = lshr i32 %2, %2		; <i32> [#uses=3] | 
 | 	%6 = icmp eq i32 0, 0		; <i1> [#uses=1] | 
 | 	br i1 %6, label %bb6, label %bb9 | 
 |  | 
 | bb6:		; preds = %bb3 | 
 | 	%7 = ashr i32 %5, %3		; <i32> [#uses=1] | 
 | 	%8 = icmp eq i32 %7, 0		; <i1> [#uses=1] | 
 | 	%9 = select i1 %8, i32 %3, i32 0		; <i32> [#uses=1] | 
 | 	%. = shl i32 %5, %9		; <i32> [#uses=1] | 
 | 	br label %bb9 | 
 |  | 
 | bb9:		; preds = %bb6, %bb3 | 
 | 	%.0 = phi i32 [ %., %bb6 ], [ %5, %bb3 ]		; <i32> [#uses=0] | 
 | 	br i1 false, label %return, label %bb10 | 
 |  | 
 | bb10:		; preds = %bb9 | 
 | 	ret i32 undef | 
 |  | 
 | return:		; preds = %bb9 | 
 | 	ret i32 undef | 
 | } | 
 |  | 
 | declare i32 @func_43(...) | 
 |  | 
 | declare i32 @rshift_u_s(...) |