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.
121 lines
4.8 KiB
121 lines
4.8 KiB
4 months ago
|
# RUN: llc %s --start-after=livedebugvalues -filetype=obj -o - \
|
||
|
|
# RUN: | llvm-dwarfdump - -name local* -regex \
|
||
|
|
# RUN: | FileCheck %s
|
||
|
|
#
|
||
|
|
# Test that the -trim-var-locs option (enabled by default) works correctly.
|
||
|
|
# Test directives and comments inline.
|
||
|
|
|
||
|
|
--- |
|
||
|
|
target triple = "x86_64-unknown-linux-gnu"
|
||
|
|
define dso_local i32 @fun() local_unnamed_addr !dbg !7 {
|
||
|
|
entry:
|
||
|
|
ret i32 0
|
||
|
|
}
|
||
|
|
|
||
|
|
!llvm.dbg.cu = !{!0}
|
||
|
|
!llvm.module.flags = !{!3, !4, !5}
|
||
|
|
!llvm.ident = !{!6}
|
||
|
|
|
||
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
|
||
|
|
!1 = !DIFile(filename: "example.c", directory: "/")
|
||
|
|
!2 = !{}
|
||
|
|
!3 = !{i32 7, !"Dwarf Version", i32 4}
|
||
|
|
!4 = !{i32 2, !"Debug Info Version", i32 3}
|
||
|
|
!5 = !{i32 1, !"wchar_size", i32 4}
|
||
|
|
!6 = !{!"clang version 11.0.0"}
|
||
|
|
!8 = !DISubroutineType(types: !9)
|
||
|
|
!9 = !{!10}
|
||
|
|
!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
||
|
|
!11 = !{!12, !13, !25}
|
||
|
|
!22 = !DISubroutineType(types: !23)
|
||
|
|
!23 = !{!10, !10}
|
||
|
|
; --- Important metadata ---
|
||
|
|
!7 = distinct !DISubprogram(name: "fun", scope: !1, file: !1, line: 2, type: !8, scopeLine: 2, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)
|
||
|
|
!24 = distinct !DILexicalBlock(scope: !7, file: !1, line: 9, column: 3)
|
||
|
|
!14 = distinct !DILexicalBlock(scope: !7, file: !1, line: 4, column: 3)
|
||
|
|
!12 = !DILocalVariable(name: "locala", scope: !7, file: !1, line: 1, type: !10)
|
||
|
|
!13 = !DILocalVariable(name: "localb", scope: !14, file: !1, line: 2, type: !10)
|
||
|
|
!25 = !DILocalVariable(name: "localc", scope: !24, file: !1, line: 3, type: !10)
|
||
|
|
!15 = !DILocation(line: 1, column: 0, scope: !7)
|
||
|
|
!18 = !DILocation(line: 2, column: 1, scope: !14)
|
||
|
|
!26 = !DILocation(line: 3, column: 1, scope: !24)
|
||
|
|
...
|
||
|
|
---
|
||
|
|
name: fun
|
||
|
|
body: |
|
||
|
|
bb.0.entry:
|
||
|
|
; This is the scope and variable structure:
|
||
|
|
; int fun() { // scope fun !7
|
||
|
|
; int locala; // scope fun !7, var locala !12, debug-location !15
|
||
|
|
; { int localb; } // scope fun:block !14, var localb !13, debug-location !18
|
||
|
|
; { int localc; } // scope fun:block !24, var localc !25, debug-location !26
|
||
|
|
; }
|
||
|
|
;
|
||
|
|
; (1) Check that a variable location range found in implied scope fun !7 is
|
||
|
|
; not trimmed.
|
||
|
|
;
|
||
|
|
; CHECK: DW_TAG_variable
|
||
|
|
; CHECK-NEXT: DW_AT_location
|
||
|
|
; CHECK-NEXT: DW_OP_reg0 RAX
|
||
|
|
; CHECK-NEXT: DW_AT_name ("locala")
|
||
|
|
;
|
||
|
|
; scope fun !7 is implied as we're in function fun and haven't seen a debug-location
|
||
|
|
$eax = MOV32ri 0
|
||
|
|
; locala range 1 start in implicit scope fun !7
|
||
|
|
DBG_VALUE $eax, $noreg, !12, !DIExpression(), debug-location !15
|
||
|
|
$edi = MOV32ri 1
|
||
|
|
; locala range 1 clobber in implicit scope fun !7
|
||
|
|
$eax = MOV32ri 2
|
||
|
|
; scope fun !7 explicit start
|
||
|
|
$edi = MOV32ri 3, debug-location !15
|
||
|
|
|
||
|
|
; (2) Check that a variable location range found outside lexical block is
|
||
|
|
; trimmed. See check directives for (3).
|
||
|
|
;
|
||
|
|
; localb range 1 start in scope fun !7 (outside block !14).
|
||
|
|
DBG_VALUE $eax, $noreg, !13, !DIExpression(), debug-location !18
|
||
|
|
; localb range 1 clobber in scope fun !7
|
||
|
|
$edi = MOV32ri 4, debug-location !15
|
||
|
|
|
||
|
|
; (3) Check that a variable location range which overlaps the entire lexical
|
||
|
|
; block is not trimmed.
|
||
|
|
;
|
||
|
|
; CHECK: DW_TAG_variable
|
||
|
|
; CHECK-NEXT: DW_AT_location (DW_OP_reg5 RDI)
|
||
|
|
; CHECK-NEXT: DW_AT_name ("localb")
|
||
|
|
;
|
||
|
|
; localb range 2 clobber in scope fun !7 (outside block !14)
|
||
|
|
DBG_VALUE $edi, $noreg, !13, !DIExpression(), debug-location !18
|
||
|
|
; scope block !14 start (and only instruction)
|
||
|
|
$edi = MOV32ri 5, debug-location !18
|
||
|
|
|
||
|
|
; (4) Check that a variable location range in scope fun !7 (outside block
|
||
|
|
; !14) is trimmed. See check directives for (3).
|
||
|
|
;
|
||
|
|
; localb range 3 starts after scope !14 (prev instr is last in scope)
|
||
|
|
DBG_VALUE $rax, $noreg, !13, !DIExpression(), debug-location !18
|
||
|
|
; scope block !14 end
|
||
|
|
$edi = MOV32ri 6, debug-location !15
|
||
|
|
|
||
|
|
; (5) Check that a variable location range found between disjoint scope
|
||
|
|
; ranges is trimmed.
|
||
|
|
;
|
||
|
|
; CHECK: DW_TAG_variable
|
||
|
|
; CHECK-NOT: DW_AT_location
|
||
|
|
; CHECK-NEXT: DW_AT_name ("localc")
|
||
|
|
;
|
||
|
|
; scope fun !7
|
||
|
|
$edi = MOV32ri 6, debug-location !15
|
||
|
|
; scope block !24 start and end range 1
|
||
|
|
$edi = MOV32ri 7, debug-location !26
|
||
|
|
; localc range 1 start in scope !7
|
||
|
|
DBG_VALUE $edi, $noreg, !25, !DIExpression(), debug-location !18
|
||
|
|
; localc range 1 clobber in scope !7
|
||
|
|
$edi = MOV32ri 8, debug-location !15
|
||
|
|
; scope block !24 start and end range 2
|
||
|
|
$edi = MOV32ri 9, debug-location !26
|
||
|
|
|
||
|
|
; scope fun !7
|
||
|
|
RETQ debug-location !15
|
||
|
|
...
|