1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 2; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s 3 4declare void @use(i1) 5 6define void @uge_sext(i16 %x, i32 %y) { 7; CHECK-LABEL: define void @uge_sext( 8; CHECK-SAME: i16 [[X:%.*]], i32 [[Y:%.*]]) { 9; CHECK-NEXT: entry: 10; CHECK-NEXT: [[X_EXT:%.*]] = sext i16 [[X]] to i32 11; CHECK-NEXT: [[C_1:%.*]] = icmp uge i32 [[X_EXT]], [[Y]] 12; CHECK-NEXT: [[C_2:%.*]] = icmp uge i32 [[Y]], -10 13; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_1]], [[C_2]] 14; CHECK-NEXT: br i1 [[AND]], label [[BB1:%.*]], label [[BB2:%.*]] 15; CHECK: bb1: 16; CHECK-NEXT: [[T_1:%.*]] = icmp uge i32 [[X_EXT]], [[Y]] 17; CHECK-NEXT: call void @use(i1 [[T_1]]) 18; CHECK-NEXT: [[C_3:%.*]] = icmp uge i16 [[X]], -10 19; CHECK-NEXT: call void @use(i1 [[C_3]]) 20; CHECK-NEXT: [[C_4:%.*]] = icmp uge i32 [[X_EXT]], -9 21; CHECK-NEXT: call void @use(i1 [[C_4]]) 22; CHECK-NEXT: [[C_5:%.*]] = icmp uge i32 [[X_EXT]], -9 23; CHECK-NEXT: call void @use(i1 [[C_5]]) 24; CHECK-NEXT: [[C_6:%.*]] = icmp uge i32 [[Y]], [[X_EXT]] 25; CHECK-NEXT: call void @use(i1 [[C_6]]) 26; CHECK-NEXT: [[C_7:%.*]] = icmp uge i16 [[X]], -9 27; CHECK-NEXT: call void @use(i1 [[C_7]]) 28; CHECK-NEXT: ret void 29; CHECK: bb2: 30; CHECK-NEXT: ret void 31; 32entry: 33 %x.ext = sext i16 %x to i32 34 %c.1 = icmp uge i32 %x.ext, %y 35 %c.2 = icmp uge i32 %y, -10 36 %and = and i1 %c.1, %c.2 37 br i1 %and, label %bb1, label %bb2 38 39bb1: 40 %t.1 = icmp uge i32 %x.ext, %y 41 call void @use(i1 %t.1) 42 %c.3 = icmp uge i16 %x, -10 43 call void @use(i1 %c.3) 44 %c.4 = icmp uge i32 %x.ext, -9 45 call void @use(i1 %c.4) 46 %c.5 = icmp uge i32 %x.ext, -9 47 call void @use(i1 %c.5) 48 %c.6 = icmp uge i32 %y, %x.ext 49 call void @use(i1 %c.6) 50 %c.7 = icmp uge i16 %x, -9 51 call void @use(i1 %c.7) 52 ret void 53 54bb2: 55 ret void 56} 57 58define void @uge_sext_known_positive(i16 %x, i32 %y) { 59; CHECK-LABEL: define void @uge_sext_known_positive( 60; CHECK-SAME: i16 [[X:%.*]], i32 [[Y:%.*]]) { 61; CHECK-NEXT: entry: 62; CHECK-NEXT: [[X_EXT:%.*]] = sext i16 [[X]] to i32 63; CHECK-NEXT: [[C_2:%.*]] = icmp sge i16 [[X]], 0 64; CHECK-NEXT: [[C_1:%.*]] = icmp uge i32 [[X_EXT]], 10 65; CHECK-NEXT: [[AND:%.*]] = and i1 [[C_2]], [[C_1]] 66; CHECK-NEXT: br i1 [[AND]], label [[BB1:%.*]], label [[BB2:%.*]] 67; CHECK: bb1: 68; CHECK-NEXT: call void @use(i1 true) 69; CHECK-NEXT: call void @use(i1 true) 70; CHECK-NEXT: [[C_3:%.*]] = icmp uge i32 [[X_EXT]], 11 71; CHECK-NEXT: call void @use(i1 [[C_3]]) 72; CHECK-NEXT: [[C_4:%.*]] = icmp uge i32 [[X_EXT]], 11 73; CHECK-NEXT: call void @use(i1 [[C_4]]) 74; CHECK-NEXT: [[C_5:%.*]] = icmp uge i32 [[Y]], [[X_EXT]] 75; CHECK-NEXT: call void @use(i1 [[C_5]]) 76; CHECK-NEXT: [[C_6:%.*]] = icmp uge i16 [[X]], 11 77; CHECK-NEXT: call void @use(i1 [[C_6]]) 78; CHECK-NEXT: ret void 79; CHECK: bb2: 80; CHECK-NEXT: ret void 81; 82entry: 83 %x.ext = sext i16 %x to i32 84 %c.2 = icmp sge i16 %x, 0 85 %c.1 = icmp uge i32 %x.ext, 10 86 %and = and i1 %c.2, %c.1 87 br i1 %and, label %bb1, label %bb2 88 89bb1: 90 %t.1 = icmp uge i32 %x.ext, 10 91 call void @use(i1 %t.1) 92 %t.2 = icmp uge i16 %x, 10 93 call void @use(i1 %t.2) 94 %c.3 = icmp uge i32 %x.ext, 11 95 call void @use(i1 %c.3) 96 %c.4 = icmp uge i32 %x.ext, 11 97 call void @use(i1 %c.4) 98 %c.5 = icmp uge i32 %y, %x.ext 99 call void @use(i1 %c.5) 100 %c.6 = icmp uge i16 %x, 11 101 call void @use(i1 %c.6) 102 ret void 103 104bb2: 105 ret void 106} 107 108define i1 @cmp_sext_unsigned(i32 %a, i32 %b){ 109; CHECK-LABEL: define i1 @cmp_sext_unsigned( 110; CHECK-SAME: i32 [[A:%.*]], i32 [[B:%.*]]) { 111; CHECK-NEXT: entry: 112; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[A]], [[B]] 113; CHECK-NEXT: br i1 [[CMP]], label [[THEN:%.*]], label [[ELSE:%.*]] 114; CHECK: then: 115; CHECK-NEXT: [[SA:%.*]] = sext i32 [[A]] to i64 116; CHECK-NEXT: [[SB:%.*]] = sext i32 [[B]] to i64 117; CHECK-NEXT: [[ADD:%.*]] = add nsw i64 [[SA]], 1 118; CHECK-NEXT: [[CMP2:%.*]] = icmp uge i64 [[SB]], [[ADD]] 119; CHECK-NEXT: ret i1 [[CMP2]] 120; CHECK: else: 121; CHECK-NEXT: ret i1 false 122; 123entry: 124 %cmp = icmp slt i32 %a, %b 125 br i1 %cmp, label %then, label %else 126 127then: 128 %sa = sext i32 %a to i64 129 %sb = sext i32 %b to i64 130 %add = add nsw i64 %sa, 1 131 %cmp2 = icmp uge i64 %sb, %add 132 ret i1 %cmp2 133 134else: 135 ret i1 false 136} 137