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1; RUN: llc < %s -mtriple=i686--2; PR27753 4define i32 @func_77(i8 zeroext %p_79) nounwind {5entry:6 %0 = tail call i32 (...) @func_43(i32 1) nounwind ; <i32> [#uses=1]7 %1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]8 br i1 %1, label %bb3, label %bb9 10bb: ; preds = %entry11 br label %bb312 13bb3: ; preds = %bb, %entry14 %p_79_addr.0 = phi i8 [ 0, %bb ], [ %p_79, %entry ] ; <i8> [#uses=1]15 %2 = zext i8 %p_79_addr.0 to i32 ; <i32> [#uses=2]16 %3 = zext i1 false to i32 ; <i32> [#uses=2]17 %4 = tail call i32 (...) @rshift_u_s(i32 1) nounwind ; <i32> [#uses=0]18 %5 = lshr i32 %2, %2 ; <i32> [#uses=3]19 %6 = icmp eq i32 0, 0 ; <i1> [#uses=1]20 br i1 %6, label %bb6, label %bb921 22bb6: ; preds = %bb323 %7 = ashr i32 %5, %3 ; <i32> [#uses=1]24 %8 = icmp eq i32 %7, 0 ; <i1> [#uses=1]25 %9 = select i1 %8, i32 %3, i32 0 ; <i32> [#uses=1]26 %. = shl i32 %5, %9 ; <i32> [#uses=1]27 br label %bb928 29bb9: ; preds = %bb6, %bb330 %.0 = phi i32 [ %., %bb6 ], [ %5, %bb3 ] ; <i32> [#uses=0]31 br i1 false, label %return, label %bb1032 33bb10: ; preds = %bb934 ret i32 undef35 36return: ; preds = %bb937 ret i32 undef38}39 40declare i32 @func_43(...)41 42declare i32 @rshift_u_s(...)43