1 ; RUN: llc < %s -march=x86 2 ; PR2775 3 4 define i32 @func_77(i8 zeroext %p_79) nounwind { 5 entry: 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 %bb 9 10 bb: ; preds = %entry 11 br label %bb3 12 13 bb3: ; preds = %bb, %entry 14 %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 %bb9 21 22 bb6: ; preds = %bb3 23 %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 %bb9 28 29 bb9: ; preds = %bb6, %bb3 30 %.0 = phi i32 [ %., %bb6 ], [ %5, %bb3 ] ; <i32> [#uses=0] 31 br i1 false, label %return, label %bb10 32 33 bb10: ; preds = %bb9 34 ret i32 undef 35 36 return: ; preds = %bb9 37 ret i32 undef 38 } 39 40 declare i32 @func_43(...) 41 42 declare i32 @rshift_u_s(...) 43
