| ; RUN: llc -O1 -filetype=obj -mtriple=x86_64-apple-darwin < %s > %t |
| ; RUN: llvm-dwarfdump -v %t | FileCheck %s --check-prefixes=CHECK,DWARFv4 |
| ; RUN: llvm-objdump -r %t | FileCheck --check-prefix=DARWIN %s |
| |
| ; RUN: llc -O1 -filetype=obj -mtriple=x86_64-pc-linux-gnu < %s > %t |
| ; RUN: llvm-dwarfdump -v %t | FileCheck %s --check-prefixes=CHECK,DWARFv4 |
| ; RUN: llvm-objdump -r %t | FileCheck --check-prefix=LINUX %s |
| |
| ; RUN: llc -dwarf-version=3 -O1 -filetype=obj -mtriple=x86_64-pc-linux-gnu < %s > %t |
| ; RUN: llvm-dwarfdump -debug-info -v %t | FileCheck %s --check-prefixes=CHECK,DWARF32v3 |
| ; RUN: llvm-objdump -r %t | FileCheck --check-prefix=LINUX %s |
| |
| ; RUN: llc -dwarf64 -dwarf-version=3 -O1 -filetype=obj -mtriple=x86_64-pc-linux-gnu < %s > %t |
| ; RUN: llvm-dwarfdump -debug-info -v %t | FileCheck %s --check-prefixes=CHECK,DWARF64v3 |
| ; RUN: llvm-objdump -r %t | FileCheck --check-prefix=LINUX %s |
| |
| ; PR9493 |
| ; Adapted from the original test case in r127757. |
| ; We use 'llc -O1' to induce variable 'x' to live in different locations. |
| ; We don't actually care where 'x' lives, or what exact optimizations get |
| ; used, as long as 'x' moves around we're fine. |
| |
| ; // The variable 'x' lives in different locations, so it needs an entry in |
| ; // the .debug_loc table section, referenced by DW_AT_location. |
| ; // This ref is not relocatable on Darwin, and is relocatable elsewhere. |
| ; extern int g(int, int); |
| ; extern int a; |
| ; |
| ; void f(void) { |
| ; int x; |
| ; a = g(0, 0); |
| ; x = 1; |
| ; while (x & 1) { x *= a; } |
| ; a = g(x, 0); |
| ; x = 2; |
| ; while (x & 2) { x *= a; } |
| ; a = g(0, x); |
| ; } |
| |
| ; // The 'x' variable and its symbol reference location |
| ; CHECK: .debug_info contents: |
| ; CHECK: DW_TAG_variable |
| ; DWARF32v3-NEXT: DW_AT_location [DW_FORM_data4] (0x00000000 |
| ; DWARF64v3-NEXT: DW_AT_location [DW_FORM_data8] (0x00000000 |
| ; DWARFv4-NEXT: DW_AT_location [DW_FORM_sec_offset] (0x00000000 |
| ; Check that the location contains only 4 ranges. |
| ; CHECK-NEXT: [0x{{[0-9a-f]*}}, 0x{{[0-9a-f]*}}) |
| ; CHECK-NEXT: [0x{{[0-9a-f]*}}, 0x{{[0-9a-f]*}}) |
| ; CHECK-NEXT: [0x{{[0-9a-f]*}}, 0x{{[0-9a-f]*}}) |
| ; CHECK-NEXT: [0x{{[0-9a-f]*}}, 0x{{[0-9a-f]*}}){{.*}}) |
| ; CHECK-NEXT: DW_AT_name {{.*}} "x" |
| ; CHECK-NEXT: DW_AT_decl_file |
| ; CHECK-NEXT: DW_AT_decl_line |
| ; CHECK-NEXT: DW_AT_type |
| |
| ; Check that we have no relocations in Darwin's output. |
| ; DARWIN-NOT: X86_64_RELOC{{.*}} __debug_loc |
| |
| ; Check we have a relocation for the debug_loc entry in Linux output. |
| ; LINUX: RELOCATION RECORDS FOR [.debug_info] |
| ; LINUX-NOT: RELOCATION RECORDS |
| ; LINUX: R_X86_64{{.*}} .debug_loc |
| |
| ; ModuleID = 'simple.c' |
| target 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" |
| |
| @a = external global i32 |
| |
| define void @f() nounwind !dbg !0 { |
| entry: |
| %call = tail call i32 @g(i32 0, i32 0) nounwind, !dbg !8 |
| store i32 %call, ptr @a, align 4, !dbg !8 |
| tail call void @llvm.dbg.value(metadata i32 1, metadata !5, metadata !DIExpression()), !dbg !13 |
| br label %while.body |
| |
| while.body: ; preds = %entry, %while.body |
| %x.017 = phi i32 [ 1, %entry ], [ %mul, %while.body ] |
| %mul = mul nsw i32 %call, %x.017, !dbg !14 |
| %and = and i32 %mul, 1, !dbg !14 |
| %tobool = icmp eq i32 %and, 0, !dbg !14 |
| br i1 %tobool, label %while.end, label %while.body, !dbg !14 |
| |
| while.end: ; preds = %while.body |
| tail call void @llvm.dbg.value(metadata i32 %mul, metadata !5, metadata !DIExpression()), !dbg !14 |
| %call4 = tail call i32 @g(i32 %mul, i32 0) nounwind, !dbg !15 |
| store i32 %call4, ptr @a, align 4, !dbg !15 |
| tail call void @llvm.dbg.value(metadata i32 2, metadata !5, metadata !DIExpression()), !dbg !17 |
| br label %while.body9 |
| |
| while.body9: ; preds = %while.end, %while.body9 |
| %x.116 = phi i32 [ 2, %while.end ], [ %mul12, %while.body9 ] |
| %mul12 = mul nsw i32 %call4, %x.116, !dbg !18 |
| %and7 = and i32 %mul12, 2, !dbg !18 |
| %tobool8 = icmp eq i32 %and7, 0, !dbg !18 |
| br i1 %tobool8, label %while.end13, label %while.body9, !dbg !18 |
| |
| while.end13: ; preds = %while.body9 |
| tail call void @llvm.dbg.value(metadata i32 %mul12, metadata !5, metadata !DIExpression()), !dbg !18 |
| %call15 = tail call i32 @g(i32 0, i32 %mul12) nounwind, !dbg !19 |
| store i32 %call15, ptr @a, align 4, !dbg !19 |
| ret void, !dbg !20 |
| } |
| |
| declare i32 @g(i32, i32) |
| |
| declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!24} |
| |
| !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) |
| !1 = !DIFile(filename: "simple.c", directory: "/home/rengol01/temp/tests/dwarf/relocation") |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (trunk)", isOptimized: true, emissionKind: FullDebug, file: !23, enums: !{}, retainedTypes: !{}, imports: null) |
| !3 = !DISubroutineType(types: !4) |
| !4 = !{null} |
| !5 = !DILocalVariable(name: "x", line: 5, scope: !6, file: !1, type: !7) |
| !6 = distinct !DILexicalBlock(line: 4, column: 14, file: !23, scope: !0) |
| !7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !8 = !DILocation(line: 6, column: 3, scope: !6) |
| !12 = !{i32 1} |
| !13 = !DILocation(line: 7, column: 3, scope: !6) |
| !14 = !DILocation(line: 8, column: 3, scope: !6) |
| !15 = !DILocation(line: 9, column: 3, scope: !6) |
| !16 = !{i32 2} |
| !17 = !DILocation(line: 10, column: 3, scope: !6) |
| !18 = !DILocation(line: 11, column: 3, scope: !6) |
| !19 = !DILocation(line: 12, column: 3, scope: !6) |
| !20 = !DILocation(line: 13, column: 1, scope: !6) |
| !22 = !{!5} |
| !23 = !DIFile(filename: "simple.c", directory: "/home/rengol01/temp/tests/dwarf/relocation") |
| !24 = !{i32 1, !"Debug Info Version", i32 3} |