You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
126 lines
5.3 KiB
126 lines
5.3 KiB
; RUN: llc -O1 -filetype=obj -mtriple=x86_64-apple-darwin < %s > %t
|
|
; RUN: llvm-dwarfdump %t | FileCheck %s
|
|
; 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 %t | FileCheck %s
|
|
; 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
|
|
; CHECK-NEXT: DW_AT_location [DW_FORM_sec_offset] (0x00000000)
|
|
; 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 the location contains only 4 ranges - this verifies that the 4th
|
|
; and 5th ranges were successfully merged into a single range.
|
|
; CHECK: .debug_loc contents:
|
|
; CHECK: 0x00000000:
|
|
; CHECK: Beginning address offset:
|
|
; CHECK: Beginning address offset:
|
|
; CHECK: Beginning address offset:
|
|
; CHECK: Beginning address offset:
|
|
; CHECK-NOT: Beginning address offset:
|
|
|
|
; 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 [.rela.debug_info]
|
|
; LINUX-NOT: RELOCATION RECORDS
|
|
; LINUX: R_X86_64{{.*}} .debug_loc+0
|
|
|
|
; 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, i32* @a, align 4, !dbg !8
|
|
tail call void @llvm.dbg.value(metadata i32 1, i64 0, 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, i64 0, metadata !5, metadata !DIExpression()), !dbg !14
|
|
%call4 = tail call i32 @g(i32 %mul, i32 0) nounwind, !dbg !15
|
|
store i32 %call4, i32* @a, align 4, !dbg !15
|
|
tail call void @llvm.dbg.value(metadata i32 2, i64 0, 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, i64 0, metadata !5, metadata !DIExpression()), !dbg !18
|
|
%call15 = tail call i32 @g(i32 0, i32 %mul12) nounwind, !dbg !19
|
|
store i32 %call15, i32* @a, align 4, !dbg !19
|
|
ret void, !dbg !20
|
|
}
|
|
|
|
declare i32 @g(i32, i32)
|
|
|
|
declare void @llvm.dbg.value(metadata, i64, 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, variables: !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}
|