1; Test 32-bit addition in which the second operand is constant and in which 2; three-operand forms are available. 3; 4; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s 5 6declare i32 @foo() 7 8; Check addition of 1. 9define zeroext i1 @f1(i32 %dummy, i32 %a, i32 *%res) { 10; CHECK-LABEL: f1: 11; CHECK: alhsik [[REG1:%r[0-5]]], %r3, 1 12; CHECK-DAG: st [[REG1]], 0(%r4) 13; CHECK-DAG: ipm [[REG2:%r[0-5]]] 14; CHECK-DAG: risbg %r2, [[REG2]], 63, 191, 35 15; CHECK: br %r14 16 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 1) 17 %val = extractvalue {i32, i1} %t, 0 18 %obit = extractvalue {i32, i1} %t, 1 19 store i32 %val, i32 *%res 20 ret i1 %obit 21} 22 23; Check the high end of the ALHSIK range. 24define zeroext i1 @f2(i32 %dummy, i32 %a, i32 *%res) { 25; CHECK-LABEL: f2: 26; CHECK: alhsik [[REG1:%r[0-5]]], %r3, 32767 27; CHECK-DAG: st [[REG1]], 0(%r4) 28; CHECK-DAG: ipm [[REG2:%r[0-5]]] 29; CHECK-DAG: risbg %r2, [[REG2]], 63, 191, 35 30; CHECK: br %r14 31 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 32767) 32 %val = extractvalue {i32, i1} %t, 0 33 %obit = extractvalue {i32, i1} %t, 1 34 store i32 %val, i32 *%res 35 ret i1 %obit 36} 37 38; Check the next value up, which must use ALFI instead. 39define zeroext i1 @f3(i32 %dummy, i32 %a, i32 *%res) { 40; CHECK-LABEL: f3: 41; CHECK: alfi %r3, 32768 42; CHECK-DAG: st %r3, 0(%r4) 43; CHECK-DAG: ipm [[REG2:%r[0-5]]] 44; CHECK-DAG: risbg %r2, [[REG2]], 63, 191, 35 45; CHECK: br %r14 46 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 32768) 47 %val = extractvalue {i32, i1} %t, 0 48 %obit = extractvalue {i32, i1} %t, 1 49 store i32 %val, i32 *%res 50 ret i1 %obit 51} 52 53; Check the high end of the negative ALHSIK range. 54define zeroext i1 @f4(i32 %dummy, i32 %a, i32 *%res) { 55; CHECK-LABEL: f4: 56; CHECK: alhsik [[REG1:%r[0-5]]], %r3, -1 57; CHECK-DAG: st [[REG1]], 0(%r4) 58; CHECK-DAG: ipm [[REG2:%r[0-5]]] 59; CHECK-DAG: risbg %r2, [[REG2]], 63, 191, 35 60; CHECK: br %r14 61 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 -1) 62 %val = extractvalue {i32, i1} %t, 0 63 %obit = extractvalue {i32, i1} %t, 1 64 store i32 %val, i32 *%res 65 ret i1 %obit 66} 67 68; Check the low end of the ALHSIK range. 69define zeroext i1 @f5(i32 %dummy, i32 %a, i32 *%res) { 70; CHECK-LABEL: f5: 71; CHECK: alhsik [[REG1:%r[0-5]]], %r3, -32768 72; CHECK-DAG: st [[REG1]], 0(%r4) 73; CHECK-DAG: ipm [[REG2:%r[0-5]]] 74; CHECK-DAG: risbg %r2, [[REG2]], 63, 191, 35 75; CHECK: br %r14 76 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 -32768) 77 %val = extractvalue {i32, i1} %t, 0 78 %obit = extractvalue {i32, i1} %t, 1 79 store i32 %val, i32 *%res 80 ret i1 %obit 81} 82 83; Check the next value down, which must use ALFI instead. 84define zeroext i1 @f6(i32 %dummy, i32 %a, i32 *%res) { 85; CHECK-LABEL: f6: 86; CHECK: alfi %r3, 4294934527 87; CHECK-DAG: st %r3, 0(%r4) 88; CHECK-DAG: ipm [[REG2:%r[0-5]]] 89; CHECK-DAG: risbg %r2, [[REG2]], 63, 191, 35 90; CHECK: br %r14 91 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 -32769) 92 %val = extractvalue {i32, i1} %t, 0 93 %obit = extractvalue {i32, i1} %t, 1 94 store i32 %val, i32 *%res 95 ret i1 %obit 96} 97 98; Check using the overflow result for a branch. 99define void @f7(i32 %dummy, i32 %a, i32 *%res) { 100; CHECK-LABEL: f7: 101; CHECK: alhsik [[REG1:%r[0-5]]], %r3, 1 102; CHECK-DAG: st [[REG1]], 0(%r4) 103; CHECK: jgnle foo@PLT 104; CHECK: br %r14 105 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 1) 106 %val = extractvalue {i32, i1} %t, 0 107 %obit = extractvalue {i32, i1} %t, 1 108 store i32 %val, i32 *%res 109 br i1 %obit, label %call, label %exit 110 111call: 112 tail call i32 @foo() 113 br label %exit 114 115exit: 116 ret void 117} 118 119; ... and the same with the inverted direction. 120define void @f8(i32 %dummy, i32 %a, i32 *%res) { 121; CHECK-LABEL: f8: 122; CHECK: alhsik [[REG1:%r[0-5]]], %r3, 1 123; CHECK-DAG: st [[REG1]], 0(%r4) 124; CHECK: jgle foo@PLT 125; CHECK: br %r14 126 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %a, i32 1) 127 %val = extractvalue {i32, i1} %t, 0 128 %obit = extractvalue {i32, i1} %t, 1 129 store i32 %val, i32 *%res 130 br i1 %obit, label %exit, label %call 131 132call: 133 tail call i32 @foo() 134 br label %exit 135 136exit: 137 ret void 138} 139 140 141declare {i32, i1} @llvm.uadd.with.overflow.i32(i32, i32) nounwind readnone 142 143