1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3 2; Test 32-bit addition in which the second operand is constant and in which 3; three-operand forms are available. 4; 5; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s 6 7declare i32 @foo() 8 9; Check addition of 1. 10define zeroext i1 @f1(i32 %dummy, i32 %a, ptr %res) { 11; CHECK-LABEL: f1: 12; CHECK: # %bb.0: 13; CHECK-NEXT: alhsik %r0, %r3, 1 14; CHECK-NEXT: st %r0, 0(%r4) 15; CHECK-NEXT: ipm %r1 16; CHECK-NEXT: risbg %r2, %r1, 63, 191, 35 17; CHECK-NEXT: br %r14 18 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 1) 19 %val = extractvalue {i32, i1} %t, 0 20 %obit = extractvalue {i32, i1} %t, 1 21 store i32 %val, ptr %res 22 ret i1 %obit 23} 24 25; Check the high end of the ALHSIK range. 26define zeroext i1 @f2(i32 %dummy, i32 %a, ptr %res) { 27; CHECK-LABEL: f2: 28; CHECK: # %bb.0: 29; CHECK-NEXT: alhsik %r0, %r3, 32767 30; CHECK-NEXT: st %r0, 0(%r4) 31; CHECK-NEXT: ipm %r1 32; CHECK-NEXT: risbg %r2, %r1, 63, 191, 35 33; CHECK-NEXT: br %r14 34 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 32767) 35 %val = extractvalue {i32, i1} %t, 0 36 %obit = extractvalue {i32, i1} %t, 1 37 store i32 %val, ptr %res 38 ret i1 %obit 39} 40 41; Check the next value up, which must use ALFI instead. 42define zeroext i1 @f3(i32 %dummy, i32 %a, ptr %res) { 43; CHECK-LABEL: f3: 44; CHECK: # %bb.0: 45; CHECK-NEXT: alfi %r3, 32768 46; CHECK-NEXT: st %r3, 0(%r4) 47; CHECK-NEXT: ipm %r0 48; CHECK-NEXT: risbg %r2, %r0, 63, 191, 35 49; CHECK-NEXT: br %r14 50 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 32768) 51 %val = extractvalue {i32, i1} %t, 0 52 %obit = extractvalue {i32, i1} %t, 1 53 store i32 %val, ptr %res 54 ret i1 %obit 55} 56 57; Check the high end of the negative ALHSIK range. 58define zeroext i1 @f4(i32 %dummy, i32 %a, ptr %res) { 59; CHECK-LABEL: f4: 60; CHECK: # %bb.0: 61; CHECK-NEXT: alhsik %r0, %r3, -1 62; CHECK-NEXT: st %r0, 0(%r4) 63; CHECK-NEXT: ipm %r1 64; CHECK-NEXT: risbg %r2, %r1, 63, 191, 35 65; CHECK-NEXT: br %r14 66 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 -1) 67 %val = extractvalue {i32, i1} %t, 0 68 %obit = extractvalue {i32, i1} %t, 1 69 store i32 %val, ptr %res 70 ret i1 %obit 71} 72 73; Check the low end of the ALHSIK range. 74define zeroext i1 @f5(i32 %dummy, i32 %a, ptr %res) { 75; CHECK-LABEL: f5: 76; CHECK: # %bb.0: 77; CHECK-NEXT: alhsik %r0, %r3, -32768 78; CHECK-NEXT: st %r0, 0(%r4) 79; CHECK-NEXT: ipm %r1 80; CHECK-NEXT: risbg %r2, %r1, 63, 191, 35 81; CHECK-NEXT: br %r14 82 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 -32768) 83 %val = extractvalue {i32, i1} %t, 0 84 %obit = extractvalue {i32, i1} %t, 1 85 store i32 %val, ptr %res 86 ret i1 %obit 87} 88 89; Check the next value down, which must use ALFI instead. 90define zeroext i1 @f6(i32 %dummy, i32 %a, ptr %res) { 91; CHECK-LABEL: f6: 92; CHECK: # %bb.0: 93; CHECK-NEXT: alfi %r3, 4294934527 94; CHECK-NEXT: st %r3, 0(%r4) 95; CHECK-NEXT: ipm %r0 96; CHECK-NEXT: risbg %r2, %r0, 63, 191, 35 97; CHECK-NEXT: br %r14 98 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 -32769) 99 %val = extractvalue {i32, i1} %t, 0 100 %obit = extractvalue {i32, i1} %t, 1 101 store i32 %val, ptr %res 102 ret i1 %obit 103} 104 105; Check using the overflow result for a branch. 106define void @f7(i32 %dummy, i32 %a, ptr %res) { 107; CHECK-LABEL: f7: 108; CHECK: # %bb.0: 109; CHECK-NEXT: alhsik %r0, %r3, 1 110; CHECK-NEXT: st %r0, 0(%r4) 111; CHECK-NEXT: jgnle foo@PLT 112; CHECK-NEXT: .LBB6_1: # %exit 113; CHECK-NEXT: br %r14 114 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 1) 115 %val = extractvalue {i32, i1} %t, 0 116 %obit = extractvalue {i32, i1} %t, 1 117 store i32 %val, ptr %res 118 br i1 %obit, label %call, label %exit 119 120call: 121 tail call i32 @foo() 122 br label %exit 123 124exit: 125 ret void 126} 127 128; ... and the same with the inverted direction. 129define void @f8(i32 %dummy, i32 %a, ptr %res) { 130; CHECK-LABEL: f8: 131; CHECK: # %bb.0: 132; CHECK-NEXT: alhsik %r0, %r3, 1 133; CHECK-NEXT: st %r0, 0(%r4) 134; CHECK-NEXT: jgle foo@PLT 135; CHECK-NEXT: .LBB7_1: # %exit 136; CHECK-NEXT: br %r14 137 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 1) 138 %val = extractvalue {i32, i1} %t, 0 139 %obit = extractvalue {i32, i1} %t, 1 140 store i32 %val, ptr %res 141 br i1 %obit, label %exit, label %call 142 143call: 144 tail call i32 @foo() 145 br label %exit 146 147exit: 148 ret void 149} 150 151 152declare {i32, i1} @llvm.uadd.with.overflow.i32(i32, i32) nounwind readnone 153 154