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1; Test ensuring debug intrinsics do not affect generated function prologue.2;3; RUN: llc -O1 -mtriple=x86_64-unknown-unknown -o - %s | FileCheck %s4 5@a = local_unnamed_addr global i64 0, align 86 7define void @noDebug() {8entry:9 %0 = load i64, ptr @a, align 810 %1 = load i64, ptr @a, align 811 %2 = load i64, ptr @a, align 812 %3 = tail call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 %0, i64 %1)13 %4 = extractvalue { i64, i1 } %3, 014 %5 = tail call i64 @fn1(i64 %4, i64 %2)15 tail call void (...) @printf()16 tail call void (...) @printf(i64 1, i64 2, i64 3, i64 4, i32 0, i64 0, i64 %4, i64 %5)17 ret void18}19 20; CHECK-LABEL: noDebug21; CHECK: addq $24, %rsp22; CHECK-NEXT: .cfi_adjust_cfa_offset -2423; CHECK-NEXT: popq %rbx24; CHECK-NEXT: .cfi_def_cfa_offset 1625; CHECK-NEXT: popq %r1426; CHECK-NEXT: .cfi_def_cfa_offset 827; CHECK-NEXT: retq28 29define void @withDebug() !dbg !18 {30entry:31 %0 = load i64, ptr @a, align 832 %1 = load i64, ptr @a, align 833 %2 = load i64, ptr @a, align 834 %3 = tail call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 %0, i64 %1)35 %4 = extractvalue { i64, i1 } %3, 036 %5 = tail call i64 @fn1(i64 %4, i64 %2)37 tail call void @llvm.dbg.value(metadata i64 %4, i64 0, metadata !23, metadata !33), !dbg !3438 tail call void @llvm.dbg.value(metadata i64 %5, i64 0, metadata !22, metadata !33), !dbg !3539 tail call void (...) @printf()40 tail call void (...) @printf(i64 1, i64 2, i64 3, i64 4, i32 0, i64 0, i64 %4, i64 %5)41 ret void42}43 44; CHECK-LABEL: withDebug45; CHECK: callq printf46; CHECK: callq printf47; CHECK-NEXT: addq $24, %rsp48; CHECK-NEXT: .cfi_adjust_cfa_offset -2449; CHECK-NEXT: popq %rbx50; CHECK-NEXT: .cfi_def_cfa_offset 1651; CHECK-NEXT: popq %r1452; CHECK-NEXT: .cfi_def_cfa_offset 853; CHECK-NEXT: retq54 55declare { i64, i1 } @llvm.uadd.with.overflow.i64(i64, i64)56declare i64 @fn1(i64, i64)57 58declare void @printf(...)59 60declare void @llvm.dbg.value(metadata, i64, metadata, metadata)61 62 63!llvm.dbg.cu = !{!1}64!llvm.module.flags = !{!15, !16}65 66!1 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 4.0.0")67!2 = !DIFile(filename: "test.cpp", directory: "")68!11 = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed)69!15 = !{i32 2, !"Dwarf Version", i32 4}70!16 = !{i32 2, !"Debug Info Version", i32 3}71!18 = distinct !DISubprogram(name: "test", scope: !2, file: !2, line: 5, unit: !1)72!22 = !DILocalVariable(name: "i", scope: !18, file: !2, line: 6, type: !11)73!23 = !DILocalVariable(name: "j", scope: !18, file: !2, line: 7, type: !11)74!33 = !DIExpression()75!34 = !DILocation(line: 7, column: 17, scope: !18)76!35 = !DILocation(line: 6, column: 8, scope: !18)77!36 = !DILocation(line: 9, column: 3, scope: !18)78!37 = !DILocation(line: 10, column: 10, scope: !18)79