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llvm-6502/test/DebugInfo/COFF/multifile.ll
David Blaikie c7260209a8 Use DILexicalBlockFile, rather than DILexicalBlock, to track discriminator changes to ensure discriminator changes don't introduce new DWARF DW_TAG_lexical_blocks. 
Somewhat unnoticed in the original implementation of discriminators, but
it could cause instructions to end up in new, small,
DW_TAG_lexical_blocks due to the use of DILexicalBlock to track
discriminator changes.

Instead, use DILexicalBlockFile which we already use to track file
changes without introducing new scopes, so it works well to track
discriminator changes in the same way.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216239 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-21 22:45:21 +00:00

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; RUN: llc -mcpu=core2 -mtriple=i686-pc-win32 -O0 < %s | FileCheck --check-prefix=X86 %s
; RUN: llc -mcpu=core2 -mtriple=i686-pc-win32 -o - -O0 < %s | llvm-mc -triple=i686-pc-win32 -filetype=obj | llvm-readobj -s -sr -codeview-linetables | FileCheck --check-prefix=OBJ32 %s
; RUN: llc -mcpu=core2 -mtriple=x86_64-pc-win32 -O0 < %s | FileCheck --check-prefix=X64 %s
; RUN: llc -mcpu=core2 -mtriple=x86_64-pc-win32 -o - -O0 < %s | llvm-mc -triple=x86_64-pc-win32 -filetype=obj | llvm-readobj -s -sr -codeview-linetables | FileCheck --check-prefix=OBJ64 %s
; This LL file was generated by running clang on the following code:
; D:\input.c:
; 1 void g(void);
; 2
; 3 void f() {
; 4 #line 1 "one.c"
; 5 g(void);
; 6 #line 2 "two.c"
; 7 g(void);
; 8 #line 7 "one.c"
; 9 g(void);
; 10 }
; X86-LABEL: _f:
; X86-NEXT: # BB
; X86-NEXT: [[CALL_LINE_1:.*]]:{{$}}
; X86-NEXT: calll _g
; X86-NEXT: [[CALL_LINE_2:.*]]:{{$}}
; X86-NEXT: calll _g
; X86-NEXT: [[CALL_LINE_3:.*]]:{{$}}
; X86-NEXT: calll _g
; X86-NEXT: [[RETURN_STMT:.*]]:
; X86-NEXT: ret
; X86-NEXT: [[END_OF_F:.*]]:
;
; X86-LABEL: .section .debug$S,"rnd"
; X86-NEXT: .long 4
; X86-NEXT: .long 242
; X86-NEXT: .long [[F2_END:.*]]-[[F2_START:.*]]
; X86-NEXT: [[F2_START]]:
; X86-NEXT: .secrel32 _f
; X86-NEXT: .secidx _f
; X86-NEXT: .long [[END_OF_F]]-_f
; Segment for file 'D:\\one.c' begins
; X86-NEXT: [[FILE_SEGMENT_START:[^:]*]]:
; X86-NEXT: .long 0
; X86-NEXT: .long 1
; X86-NEXT: .long [[FILE_SEGMENT_END:.*]]-[[FILE_SEGMENT_START]]
; X86-NEXT: .long [[CALL_LINE_1]]-_f
; X86-NEXT: .long 1
; X86-NEXT: [[FILE_SEGMENT_END]]:
; Segment for file 'D:\\two.c' begins
; X86-NEXT: [[FILE_SEGMENT_START:[^:]*]]:
; X86-NEXT: .long 8
; X86-NEXT: .long 1
; X86-NEXT: .long [[FILE_SEGMENT_END:.*]]-[[FILE_SEGMENT_START]]
; X86-NEXT: .long [[CALL_LINE_2]]-_f
; X86-NEXT: .long 2
; X86-NEXT: [[FILE_SEGMENT_END]]:
; A new segment for file 'D:\\one.c' begins
; X86-NEXT: [[FILE_SEGMENT_START:[^:]*]]:
; X86-NEXT: .long 0
; X86-NEXT: .long 2
; X86-NEXT: .long [[FILE_SEGMENT_END:.*]]-[[FILE_SEGMENT_START]]
; X86-NEXT: .long [[CALL_LINE_3]]-_f
; X86-NEXT: .long 7
; X86-NEXT: .long [[RETURN_STMT]]-_f
; X86-NEXT: .long 8
; X86-NEXT: [[FILE_SEGMENT_END]]:
; X86-NEXT: [[F2_END]]:
; File index to string table offset subsection
; X86-NEXT: .long 244
; X86-NEXT: .long 16
; X86-NEXT: .long 1
; X86-NEXT: .long 0
; X86-NEXT: .long 10
; X86-NEXT: .long 0
; String table
; X86-NEXT: .long 243
; X86-NEXT: .long 19
; X86-NEXT: .byte 0
; X86-NEXT: .ascii "D:\\one.c"
; X86-NEXT: .byte 0
; X86-NEXT: .ascii "D:\\two.c"
; X86-NEXT: .byte 0
; X86-NEXT: .zero 1
; OBJ32: Section {
; OBJ32: Name: .debug$S (2E 64 65 62 75 67 24 53)
; OBJ32: Characteristics [ (0x42100040)
; OBJ32: ]
; OBJ32: Relocations [
; OBJ32-NEXT: 0xC IMAGE_REL_I386_SECREL _f
; OBJ32-NEXT: 0x10 IMAGE_REL_I386_SECTION _f
; OBJ32-NEXT: ]
; OBJ32: FunctionLineTable [
; OBJ32-NEXT: Name: _f
; OBJ32-NEXT: CodeSize: 0x10
; OBJ32-NEXT: FilenameSegment [
; OBJ32-NEXT: Filename: D:\one.c
; OBJ32-NEXT: +0x0: 1
; OBJ32-NEXT: ]
; OBJ32-NEXT: FilenameSegment [
; OBJ32-NEXT: Filename: D:\two.c
; OBJ32-NEXT: +0x5: 2
; OBJ32-NEXT: ]
; OBJ32-NEXT: FilenameSegment [
; OBJ32-NEXT: Filename: D:\one.c
; OBJ32-NEXT: +0xA: 7
; OBJ32-NEXT: +0xF: 8
; OBJ32-NEXT: ]
; OBJ32-NEXT: ]
; OBJ32: }
; X64-LABEL: f:
; X64-NEXT: [[START:.*]]:{{$}}
; X64-NEXT: # BB
; X64-NEXT: subq $40, %rsp
; X64-NEXT: [[CALL_LINE_1:.*]]:{{$}}
; X64-NEXT: callq g
; X64-NEXT: [[CALL_LINE_2:.*]]:{{$}}
; X64-NEXT: callq g
; X64-NEXT: [[CALL_LINE_3:.*]]:{{$}}
; X64-NEXT: callq g
; X64-NEXT: [[EPILOG_AND_RET:.*]]:
; X64-NEXT: addq $40, %rsp
; X64-NEXT: ret
; X64-NEXT: [[END_OF_F:.*]]:
;
; X64-LABEL: .section .debug$S,"rnd"
; X64-NEXT: .long 4
; X64-NEXT: .long 242
; X64-NEXT: .long [[F2_END:.*]]-[[F2_START:.*]]
; X64-NEXT: [[F2_START]]:
; X64-NEXT: .secrel32 f
; X64-NEXT: .secidx f
; X64-NEXT: .long [[END_OF_F]]-f
; Segment for file 'D:\\input.c' begins
; X64-NEXT: [[FILE_SEGMENT_START:[^:]*]]:
; X64-NEXT: .long 0
; X64-NEXT: .long 1
; X64-NEXT: .long [[FILE_SEGMENT_END:.*]]-[[FILE_SEGMENT_START]]
; X64-NEXT: .long [[START]]-f
; X64-NEXT: .long 3
; X64-NEXT: [[FILE_SEGMENT_END]]:
; Segment for file 'D:\\one.c' begins
; X64-NEXT: [[FILE_SEGMENT_START:[^:]*]]:
; X64-NEXT: .long 8
; X64-NEXT: .long 1
; X64-NEXT: .long [[FILE_SEGMENT_END:.*]]-[[FILE_SEGMENT_START]]
; X64-NEXT: .long [[CALL_LINE_1]]-f
; X64-NEXT: .long 1
; X64-NEXT: [[FILE_SEGMENT_END]]:
; Segment for file 'D:\\two.c' begins
; X64-NEXT: [[FILE_SEGMENT_START:[^:]*]]:
; X64-NEXT: .long 16
; X64-NEXT: .long 1
; X64-NEXT: .long [[FILE_SEGMENT_END:.*]]-[[FILE_SEGMENT_START]]
; X64-NEXT: .long [[CALL_LINE_2]]-f
; X64-NEXT: .long 2
; X64-NEXT: [[FILE_SEGMENT_END]]:
; A new segment for file 'D:\\one.c' begins
; X64-NEXT: [[FILE_SEGMENT_START:[^:]*]]:
; X64-NEXT: .long 8
; X64-NEXT: .long 2
; X64-NEXT: .long [[FILE_SEGMENT_END:.*]]-[[FILE_SEGMENT_START]]
; X64-NEXT: .long [[CALL_LINE_3]]-f
; X64-NEXT: .long 7
; X64-NEXT: .long [[EPILOG_AND_RET]]-f
; X64-NEXT: .long 8
; X64-NEXT: [[FILE_SEGMENT_END]]:
; X64-NEXT: [[F2_END]]:
; File index to string table offset subsection
; X64-NEXT: .long 244
; X64-NEXT: .long 24
; X64-NEXT: .long 1
; X64-NEXT: .long 0
; X64-NEXT: .long 12
; X64-NEXT: .long 0
; X64-NEXT: .long 21
; X64-NEXT: .long 0
; String table
; X64-NEXT: .long 243
; X64-NEXT: .long 30
; X64-NEXT: .byte 0
; X64-NEXT: .ascii "D:\\input.c"
; X64-NEXT: .byte 0
; X64-NEXT: .ascii "D:\\one.c"
; X64-NEXT: .byte 0
; X64-NEXT: .ascii "D:\\two.c"
; X64-NEXT: .byte 0
; X64-NEXT: .zero 2
; OBJ64: Section {
; OBJ64: Name: .debug$S (2E 64 65 62 75 67 24 53)
; OBJ64: Characteristics [ (0x42100040)
; OBJ64: ]
; OBJ64: Relocations [
; OBJ64-NEXT: 0xC IMAGE_REL_AMD64_SECREL f
; OBJ64-NEXT: 0x10 IMAGE_REL_AMD64_SECTION f
; OBJ64-NEXT: ]
; OBJ64: FunctionLineTable [
; OBJ64-NEXT: Name: f
; OBJ64-NEXT: CodeSize: 0x18
; OBJ64-NEXT: FilenameSegment [
; OBJ64-NEXT: Filename: D:\input.c
; OBJ64-NEXT: +0x0: 3
; OBJ64-NEXT: ]
; OBJ64-NEXT: FilenameSegment [
; OBJ64-NEXT: Filename: D:\one.c
; OBJ64-NEXT: +0x4: 1
; OBJ64-NEXT: ]
; OBJ64-NEXT: FilenameSegment [
; OBJ64-NEXT: Filename: D:\two.c
; OBJ64-NEXT: +0x9: 2
; OBJ64-NEXT: ]
; OBJ64-NEXT: FilenameSegment [
; OBJ64-NEXT: Filename: D:\one.c
; OBJ64-NEXT: +0xE: 7
; OBJ64-NEXT: +0x13: 8
; OBJ64-NEXT: ]
; OBJ64-NEXT: ]
; OBJ64: }
; Function Attrs: nounwind
define void @f() #0 {
entry:
call void @g(), !dbg !12
call void @g(), !dbg !15
call void @g(), !dbg !18
ret void, !dbg !19
}
declare void @g() #1
attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10}
!llvm.ident = !{!11}
!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [D:\/<unknown>] [DW_LANG_C99]
!1 = metadata !{metadata !"<unknown>", metadata !"D:\5C"}
!2 = metadata !{i32 0}
!3 = metadata !{metadata !4}
!4 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"f", metadata !"f", metadata !"", i32 3, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @f, null, null, metadata !2, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [f]
!5 = metadata !{metadata !"input.c", metadata !"D:\5C"}
!6 = metadata !{i32 786473, metadata !5} ; [ DW_TAG_file_type ] [D:\/input.c]
!7 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!8 = metadata !{null}
!9 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
!11 = metadata !{metadata !"clang version 3.5 "}
!12 = metadata !{i32 1, i32 0, metadata !13, null}
!13 = metadata !{i32 786443, metadata !14, metadata !4, i32 0} ; [ DW_TAG_lexical_block ] [D:\/one.c]
!14 = metadata !{metadata !"one.c", metadata !"D:\5C"}
!15 = metadata !{i32 2, i32 0, metadata !16, null}
!16 = metadata !{i32 786443, metadata !17, metadata !4, i32 0} ; [ DW_TAG_lexical_block ] [D:\/two.c]
!17 = metadata !{metadata !"two.c", metadata !"D:\5C"}
!18 = metadata !{i32 7, i32 0, metadata !13, null}
!19 = metadata !{i32 8, i32 0, metadata !13, null} ; [ DW_TAG_imported_declaration ]
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