1 ; This function contains two selects which differ only by having reversed 2 ; operand order. They are in fact equivalent, since the icmps that preceede 3 ; them also are the same except for reversed conditions. SelectionDAG will 4 ; discover this and return the other SELECT_CCMASK when the operands are 5 ; canonicalized. This must be handled by SystemZDAGToDAGISel::Select, or 6 ; instruction selection will fail. 7 ; 8 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 9 10 11 @g_1531 = external global [7 x i64], align 8 12 @g_277 = external global <{ i64, i8, i8, i8, i8, i8, i8 }>, align 8 13 @g_62.6 = external global i32, align 4 14 15 define dso_local void @fun() { 16 entry: 17 %tmp = add nuw nsw i16 0, 238 18 %tmp4 = sub nsw i16 %tmp, 0 19 store i64 4, i64* getelementptr inbounds (<{ i64, i8, i8, i8, i8, i8, i8 }>, <{ i64, i8, i8, i8, i8, i8, i8 }>* @g_277, i64 0, i32 0), align 8 20 %tmp5 = load i64, i64* getelementptr inbounds ([7 x i64], [7 x i64]* @g_1531, i64 0, i64 5), align 8 21 %tmp6 = trunc i64 %tmp5 to i32 22 %tmp7 = trunc i64 %tmp5 to i16 23 %tmp8 = shl i32 %tmp6, 24 24 %tmp9 = ashr exact i32 %tmp8, 24 25 %tmp10 = urem i16 %tmp7, %tmp4 26 %tmp11 = icmp eq i16 %tmp10, 0 27 %tmp12 = select i1 %tmp11, i32 0, i32 %tmp9 28 %tmp13 = icmp sge i32 %tmp12, undef 29 %tmp14 = zext i1 %tmp13 to i32 30 %tmp15 = or i32 0, %tmp14 31 %tmp16 = icmp ne i16 %tmp10, 0 32 %tmp17 = select i1 %tmp16, i32 %tmp9, i32 0 33 %tmp18 = icmp sge i32 %tmp17, undef 34 %tmp19 = zext i1 %tmp18 to i32 35 %tmp20 = or i32 %tmp15, %tmp19 36 store i32 %tmp20, i32* @g_62.6, align 4 37 unreachable 38 } 39
