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1; RUN: llc -O1 -filetype=obj -mtriple=x86_64-apple-darwin < %s > %t2; RUN: llvm-dwarfdump -v %t | FileCheck %s --check-prefixes=CHECK,DWARFv43; RUN: llvm-objdump -r %t | FileCheck --check-prefix=DARWIN %s4 5; RUN: llc -O1 -filetype=obj -mtriple=x86_64-pc-linux-gnu < %s > %t6; RUN: llvm-dwarfdump -v %t | FileCheck %s --check-prefixes=CHECK,DWARFv47; RUN: llvm-objdump -r %t | FileCheck --check-prefix=LINUX %s8 9; RUN: llc -dwarf-version=3 -O1 -filetype=obj -mtriple=x86_64-pc-linux-gnu < %s > %t10; RUN: llvm-dwarfdump -debug-info -v %t | FileCheck %s --check-prefixes=CHECK,DWARF32v311; RUN: llvm-objdump -r %t | FileCheck --check-prefix=LINUX %s12 13; RUN: llc -dwarf64 -dwarf-version=3 -O1 -filetype=obj -mtriple=x86_64-pc-linux-gnu < %s > %t14; RUN: llvm-dwarfdump -debug-info -v %t | FileCheck %s --check-prefixes=CHECK,DWARF64v315; RUN: llvm-objdump -r %t | FileCheck --check-prefix=LINUX %s16 17; PR949318; Adapted from the original test case in r127757.19; We use 'llc -O1' to induce variable 'x' to live in different locations.20; We don't actually care where 'x' lives, or what exact optimizations get21; used, as long as 'x' moves around we're fine.22 23; // The variable 'x' lives in different locations, so it needs an entry in24; // the .debug_loc table section, referenced by DW_AT_location.25; // This ref is not relocatable on Darwin, and is relocatable elsewhere.26; extern int g(int, int);27; extern int a;28;29; void f(void) {30; int x;31; a = g(0, 0);32; x = 1;33; while (x & 1) { x *= a; }34; a = g(x, 0);35; x = 2;36; while (x & 2) { x *= a; }37; a = g(0, x);38; }39 40; // The 'x' variable and its symbol reference location41; CHECK: .debug_info contents:42; CHECK: DW_TAG_variable43; DWARF32v3-NEXT: DW_AT_location [DW_FORM_data4] (0x0000000044; DWARF64v3-NEXT: DW_AT_location [DW_FORM_data8] (0x0000000045; DWARFv4-NEXT: DW_AT_location [DW_FORM_sec_offset] (0x0000000046; Check that the location contains only 4 ranges.47; CHECK-NEXT: [0x{{[0-9a-f]*}}, 0x{{[0-9a-f]*}})48; CHECK-NEXT: [0x{{[0-9a-f]*}}, 0x{{[0-9a-f]*}})49; CHECK-NEXT: [0x{{[0-9a-f]*}}, 0x{{[0-9a-f]*}})50; CHECK-NEXT: [0x{{[0-9a-f]*}}, 0x{{[0-9a-f]*}}){{.*}})51; CHECK-NEXT: DW_AT_name {{.*}} "x"52; CHECK-NEXT: DW_AT_decl_file53; CHECK-NEXT: DW_AT_decl_line54; CHECK-NEXT: DW_AT_type55 56; Check that we have no relocations in Darwin's output.57; DARWIN-NOT: X86_64_RELOC{{.*}} __debug_loc58 59; Check we have a relocation for the debug_loc entry in Linux output.60; LINUX: RELOCATION RECORDS FOR [.debug_info]61; LINUX-NOT: RELOCATION RECORDS62; LINUX: R_X86_64{{.*}} .debug_loc63 64; ModuleID = 'simple.c'65target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n32"66 67@a = external global i3268 69define void @f() nounwind !dbg !0 {70entry:71 %call = tail call i32 @g(i32 0, i32 0) nounwind, !dbg !872 store i32 %call, ptr @a, align 4, !dbg !873 tail call void @llvm.dbg.value(metadata i32 1, metadata !5, metadata !DIExpression()), !dbg !1374 br label %while.body75 76while.body: ; preds = %entry, %while.body77 %x.017 = phi i32 [ 1, %entry ], [ %mul, %while.body ]78 %mul = mul nsw i32 %call, %x.017, !dbg !1479 %and = and i32 %mul, 1, !dbg !1480 %tobool = icmp eq i32 %and, 0, !dbg !1481 br i1 %tobool, label %while.end, label %while.body, !dbg !1482 83while.end: ; preds = %while.body84 tail call void @llvm.dbg.value(metadata i32 %mul, metadata !5, metadata !DIExpression()), !dbg !1485 %call4 = tail call i32 @g(i32 %mul, i32 0) nounwind, !dbg !1586 store i32 %call4, ptr @a, align 4, !dbg !1587 tail call void @llvm.dbg.value(metadata i32 2, metadata !5, metadata !DIExpression()), !dbg !1788 br label %while.body989 90while.body9: ; preds = %while.end, %while.body991 %x.116 = phi i32 [ 2, %while.end ], [ %mul12, %while.body9 ]92 %mul12 = mul nsw i32 %call4, %x.116, !dbg !1893 %and7 = and i32 %mul12, 2, !dbg !1894 %tobool8 = icmp eq i32 %and7, 0, !dbg !1895 br i1 %tobool8, label %while.end13, label %while.body9, !dbg !1896 97while.end13: ; preds = %while.body998 tail call void @llvm.dbg.value(metadata i32 %mul12, metadata !5, metadata !DIExpression()), !dbg !1899 %call15 = tail call i32 @g(i32 0, i32 %mul12) nounwind, !dbg !19100 store i32 %call15, ptr @a, align 4, !dbg !19101 ret void, !dbg !20102}103 104declare i32 @g(i32, i32)105 106declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone107 108!llvm.dbg.cu = !{!2}109!llvm.module.flags = !{!24}110 111!0 = distinct !DISubprogram(name: "f", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 4, file: !23, scope: !1, type: !3, retainedNodes: !22)112!1 = !DIFile(filename: "simple.c", directory: "/home/rengol01/temp/tests/dwarf/relocation")113!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (trunk)", isOptimized: true, emissionKind: FullDebug, file: !23, enums: !{}, retainedTypes: !{}, imports: null)114!3 = !DISubroutineType(types: !4)115!4 = !{null}116!5 = !DILocalVariable(name: "x", line: 5, scope: !6, file: !1, type: !7)117!6 = distinct !DILexicalBlock(line: 4, column: 14, file: !23, scope: !0)118!7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)119!8 = !DILocation(line: 6, column: 3, scope: !6)120!12 = !{i32 1}121!13 = !DILocation(line: 7, column: 3, scope: !6)122!14 = !DILocation(line: 8, column: 3, scope: !6)123!15 = !DILocation(line: 9, column: 3, scope: !6)124!16 = !{i32 2}125!17 = !DILocation(line: 10, column: 3, scope: !6)126!18 = !DILocation(line: 11, column: 3, scope: !6)127!19 = !DILocation(line: 12, column: 3, scope: !6)128!20 = !DILocation(line: 13, column: 1, scope: !6)129!22 = !{!5}130!23 = !DIFile(filename: "simple.c", directory: "/home/rengol01/temp/tests/dwarf/relocation")131!24 = !{i32 1, !"Debug Info Version", i32 3}132