Reland r200340 - 'Add line table debug info to COFF files when using a win32 triple'

This incorporates a couple of fixes reviewed at http://llvm-reviews.chandlerc.com/D2651

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200440 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 378 insertions, 0 deletions

diff --git a/test/DebugInfo/COFF/multifunction.ll b/test/DebugInfo/COFF/multifunction.ll
new file mode 100644
index 0000000000..f051db9d74
--- /dev/null
+++ b/test/DebugInfo/COFF/multifunction.ll
@@ -0,0 +1,378 @@
+; RUN: llc -mtriple=i686-pc-win32 -O0 < %s | FileCheck --check-prefix=X86 %s
+; RUN: llc -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 -mtriple=x86_64-pc-win32 -O0 < %s | FileCheck --check-prefix=X64 %s
+; RUN: llc -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:\source.c:
+;  1 void z(void);
+;  2
+;  3 void x(void) {
+;  4   z();
+;  5 }
+;  6
+;  7 void y(void) {
+;  8   z();
+;  9 }
+; 10
+; 11 void f(void) {
+; 12   x();
+; 13   y();
+; 14   z();
+; 15 }
+
+
+; X86: _x:
+; X86-NEXT: # BB
+; X86-NEXT: [[X_CALL:.*]]:{{$}}
+; X86-NEXT: calll   _z
+; X86-NEXT: [[X_RETURN:.*]]:
+; X86-NEXT: ret
+; X86-NEXT: [[END_OF_X:.*]]:
+;
+; X86: _y:
+; X86-NEXT: # BB
+; X86-NEXT: [[Y_CALL:.*]]:{{$}}
+; X86-NEXT: calll   _z
+; X86-NEXT: [[Y_RETURN:.*]]:
+; X86-NEXT: ret
+; X86-NEXT: [[END_OF_Y:.*]]:
+;
+; X86: _f:
+; X86-NEXT: # BB
+; X86-NEXT: [[F_CALLS_X:.*]]:{{$}}
+; X86-NEXT: calll   _x
+; X86-NEXT: [[F_CALLS_Y:.*]]:
+; X86-NEXT: calll   _y
+; X86-NEXT: [[F_CALLS_Z:.*]]:
+; X86-NEXT: calll   _z
+; X86-NEXT: [[F_RETURN:.*]]:
+; X86-NEXT: ret
+; X86-NEXT: [[END_OF_F:.*]]:
+;
+; X86: .section        .debug$S,"rn"
+; X86-NEXT: .long   4
+; Line table subsection for x
+; X86-NEXT: .long   242
+; X86-NEXT: .long [[F2_END:.*]]-[[F2_START:.*]]
+; X86-NEXT: [[F2_START]]:
+; X86-NEXT: .secrel32       _x
+; X86-NEXT: .secidx _x
+; X86-NEXT: .long [[END_OF_X]]-_x
+; 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 [[X_CALL]]-_x
+; X86-NEXT: .long   4
+; X86-NEXT: .long [[X_RETURN]]-_x
+; X86-NEXT: .long   5
+; X86-NEXT: [[FILE_SEGMENT_END]]:
+; X86-NEXT: [[F2_END]]:
+; Line table subsection for y
+; X86-NEXT: .long   242
+; X86-NEXT: .long [[F2_END:.*]]-[[F2_START:.*]]
+; X86-NEXT: [[F2_START]]:
+; X86-NEXT: .secrel32       _y
+; X86-NEXT: .secidx _y
+; X86-NEXT: .long [[END_OF_Y]]-_y
+; 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 [[Y_CALL]]-_y
+; X86-NEXT: .long   8
+; X86-NEXT: .long [[Y_RETURN]]-_y
+; X86-NEXT: .long   9
+; X86-NEXT: [[FILE_SEGMENT_END]]:
+; X86-NEXT: [[F2_END]]:
+; Line table subsection for f
+; 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
+; X86-NEXT: [[FILE_SEGMENT_START:[^:]*]]:
+; X86-NEXT: .long   0
+; X86-NEXT: .long   4
+; X86-NEXT: .long [[FILE_SEGMENT_END:.*]]-[[FILE_SEGMENT_START]]
+; X86-NEXT: .long [[F_CALLS_X]]-_f
+; X86-NEXT: .long   12
+; X86-NEXT: .long [[F_CALLS_Y]]-_f
+; X86-NEXT: .long   13
+; X86-NEXT: .long [[F_CALLS_Z]]-_f
+; X86-NEXT: .long   14
+; X86-NEXT: .long [[F_RETURN]]-_f
+; X86-NEXT: .long   15
+; X86-NEXT: [[FILE_SEGMENT_END]]:
+; X86-NEXT: [[F2_END]]:
+; File index to string table offset subsection
+; X86-NEXT: .long   244
+; X86-NEXT: .long   8
+; X86-NEXT: .long   1
+; X86-NEXT: .long   0
+; String table
+; X86-NEXT: .long   243
+; X86-NEXT: .long   13
+; X86-NEXT: .byte   0
+; X86-NEXT: .ascii  "D:\\source.c"
+; X86-NEXT: .byte   0
+; X86-NEXT: .zero   3
+
+; OBJ32:    Section {
+; OBJ32:      Name: .debug$S (2E 64 65 62 75 67 24 53)
+; OBJ32:      Characteristics [ (0x42100040)
+; OBJ32:      ]
+; OBJ32:      Relocations [
+; OBJ32-NEXT:   0xC IMAGE_REL_I386_SECREL _x
+; OBJ32-NEXT:   0x10 IMAGE_REL_I386_SECTION _x
+; OBJ32-NEXT:   0x3C IMAGE_REL_I386_SECREL _y
+; OBJ32-NEXT:   0x40 IMAGE_REL_I386_SECTION _y
+; OBJ32-NEXT:   0x6C IMAGE_REL_I386_SECREL _f
+; OBJ32-NEXT:   0x70 IMAGE_REL_I386_SECTION _f
+; OBJ32-NEXT: ]
+; OBJ32:      FunctionLineTable [
+; OBJ32-NEXT:   Name: _x
+; OBJ32-NEXT:   CodeSize: 0x6
+; OBJ32-NEXT:   FilenameSegment [
+; OBJ32-NEXT:     Filename: D:\source.c
+; OBJ32-NEXT:     +0x0: 4
+; OBJ32-NEXT:     +0x5: 5
+; OBJ32-NEXT:   ]
+; OBJ32-NEXT: ]
+; OBJ32-NEXT: FunctionLineTable [
+; OBJ32-NEXT:   Name: _y
+; OBJ32-NEXT:   CodeSize: 0x6
+; OBJ32-NEXT:   FilenameSegment [
+; OBJ32-NEXT:     Filename: D:\source.c
+; OBJ32-NEXT:     +0x0: 8
+; OBJ32-NEXT:     +0x5: 9
+; OBJ32-NEXT:   ]
+; OBJ32-NEXT: ]
+; OBJ32-NEXT: FunctionLineTable [
+; OBJ32-NEXT:   Name: _f
+; OBJ32-NEXT:   CodeSize: 0x10
+; OBJ32-NEXT:   FilenameSegment [
+; OBJ32-NEXT:     Filename: D:\source.c
+; OBJ32-NEXT:     +0x0: 12
+; OBJ32-NEXT:     +0x5: 13
+; OBJ32-NEXT:     +0xA: 14
+; OBJ32-NEXT:     +0xF: 15
+; OBJ32-NEXT:   ]
+; OBJ32-NEXT: ]
+; OBJ32:    }
+
+; X64: x:
+; X64-NEXT: [[X_START:.*]]:{{$}}
+; X64-NEXT: # BB
+; X64-NEXT: subq    $40, %rsp
+; X64-NEXT: [[X_CALL_LINE:.*]]:{{$}}
+; X64-NEXT: callq   z
+; X64-NEXT: [[X_EPILOG_AND_RET:.*]]:
+; X64-NEXT: addq    $40, %rsp
+; X64-NEXT: ret
+; X64-NEXT: [[END_OF_X:.*]]:
+;
+; X64: y:
+; X64-NEXT: [[Y_START:.*]]:{{$}}
+; X64-NEXT: # BB
+; X64-NEXT: subq    $40, %rsp
+; X64-NEXT: [[Y_CALL_LINE:.*]]:{{$}}
+; X64-NEXT: callq   z
+; X64-NEXT: [[Y_EPILOG_AND_RET:.*]]:
+; X64-NEXT: addq    $40, %rsp
+; X64-NEXT: ret
+; X64-NEXT: [[END_OF_Y:.*]]:
+;
+; X64: f:
+; X64-NEXT: [[F_START:.*]]:{{$}}
+; X64-NEXT: # BB
+; X64-NEXT: subq    $40, %rsp
+; X64-NEXT: [[F_CALLS_X:.*]]:{{$}}
+; X64-NEXT: callq   x
+; X64-NEXT: [[F_CALLS_Y:.*]]:
+; X64-NEXT: callq   y
+; X64-NEXT: [[F_CALLS_Z:.*]]:
+; X64-NEXT: callq   z
+; X64-NEXT: [[F_EPILOG_AND_RET:.*]]:
+; X64-NEXT: addq    $40, %rsp
+; X64-NEXT: ret
+; X64-NEXT: [[END_OF_F:.*]]:
+;
+; X64: .section        .debug$S,"rn"
+; X64-NEXT: .long   4
+; Line table subsection for x
+; X64-NEXT: .long   242
+; X64-NEXT: .long [[F2_END:.*]]-[[F2_START:.*]]
+; X64-NEXT: [[F2_START]]:
+; X64-NEXT: .secrel32 x
+; X64-NEXT: .secidx x
+; X64-NEXT: .long [[END_OF_X]]-x
+; X64-NEXT: [[FILE_SEGMENT_START:[^:]*]]:
+; X64-NEXT: .long   0
+; X64-NEXT: .long   3
+; X64-NEXT: .long [[FILE_SEGMENT_END:.*]]-[[FILE_SEGMENT_START]]
+; X64-NEXT: .long [[X_START]]-x
+; X64-NEXT: .long   3
+; X64-NEXT: .long [[X_CALL_LINE]]-x
+; X64-NEXT: .long   4
+; X64-NEXT: .long [[X_EPILOG_AND_RET]]-x
+; X64-NEXT: .long   5
+; X64-NEXT: [[FILE_SEGMENT_END]]:
+; X64-NEXT: [[F2_END]]:
+; Line table subsection for y
+; X64-NEXT: .long   242
+; X64-NEXT: .long [[F2_END:.*]]-[[F2_START:.*]]
+; X64-NEXT: [[F2_START]]:
+; X64-NEXT: .secrel32 y
+; X64-NEXT: .secidx y
+; X64-NEXT: .long [[END_OF_Y]]-y
+; X64-NEXT: [[FILE_SEGMENT_START:[^:]*]]:
+; X64-NEXT: .long   0
+; X64-NEXT: .long   3
+; X64-NEXT: .long [[FILE_SEGMENT_END:.*]]-[[FILE_SEGMENT_START]]
+; X64-NEXT: .long [[Y_START]]-y
+; X64-NEXT: .long   7
+; X64-NEXT: .long [[Y_CALL_LINE]]-y
+; X64-NEXT: .long   8
+; X64-NEXT: .long [[Y_EPILOG_AND_RET]]-y
+; X64-NEXT: .long   9
+; X64-NEXT: [[FILE_SEGMENT_END]]:
+; X64-NEXT: [[F2_END]]:
+; Line table subsection for f
+; 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
+; X64-NEXT: [[FILE_SEGMENT_START:[^:]*]]:
+; X64-NEXT: .long   0
+; X64-NEXT: .long   5
+; X64-NEXT: .long [[FILE_SEGMENT_END:.*]]-[[FILE_SEGMENT_START]]
+; X64-NEXT: .long [[F_START]]-f
+; X64-NEXT: .long   11
+; X64-NEXT: .long [[F_CALLS_X]]-f
+; X64-NEXT: .long   12
+; X64-NEXT: .long [[F_CALLS_Y]]-f
+; X64-NEXT: .long   13
+; X64-NEXT: .long [[F_CALLS_Z]]-f
+; X64-NEXT: .long   14
+; X64-NEXT: .long [[F_EPILOG_AND_RET]]-f
+; X64-NEXT: .long   15
+; X64-NEXT: [[FILE_SEGMENT_END]]:
+; X64-NEXT: [[F2_END]]:
+; File index to string table offset subsection
+; X64-NEXT: .long   244
+; X64-NEXT: .long   8
+; X64-NEXT: .long   1
+; X64-NEXT: .long   0
+; String table
+; X64-NEXT: .long   243
+; X64-NEXT: .long   13
+; X64-NEXT: .byte   0
+; X64-NEXT: .ascii  "D:\\source.c"
+; X64-NEXT: .byte   0
+; X64-NEXT: .zero   3
+
+; 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 x
+; OBJ64-NEXT:   0x10 IMAGE_REL_AMD64_SECTION x
+; OBJ64-NEXT:   0x44 IMAGE_REL_AMD64_SECREL y
+; OBJ64-NEXT:   0x48 IMAGE_REL_AMD64_SECTION y
+; OBJ64-NEXT:   0x7C IMAGE_REL_AMD64_SECREL f
+; OBJ64-NEXT:   0x80 IMAGE_REL_AMD64_SECTION f
+; OBJ64-NEXT: ]
+; OBJ64:      FunctionLineTable [
+; OBJ64-NEXT:   Name: x
+; OBJ64-NEXT:   CodeSize: 0xE
+; OBJ64-NEXT:   FilenameSegment [
+; OBJ64-NEXT:     Filename: D:\source.c
+; OBJ64-NEXT:     +0x0: 3
+; OBJ64-NEXT:     +0x4: 4
+; OBJ64-NEXT:     +0x9: 5
+; OBJ64-NEXT:   ]
+; OBJ64-NEXT: ]
+; OBJ64-NEXT: FunctionLineTable [
+; OBJ64-NEXT:   Name: y
+; OBJ64-NEXT:   CodeSize: 0xE
+; OBJ64-NEXT:   FilenameSegment [
+; OBJ64-NEXT:     Filename: D:\source.c
+; OBJ64-NEXT:     +0x0: 7
+; OBJ64-NEXT:     +0x4: 8
+; OBJ64-NEXT:     +0x9: 9
+; OBJ64-NEXT:   ]
+; OBJ64-NEXT: ]
+; OBJ64-NEXT: FunctionLineTable [
+; OBJ64-NEXT:   Name: f
+; OBJ64-NEXT:   CodeSize: 0x18
+; OBJ64-NEXT:   FilenameSegment [
+; OBJ64-NEXT:     Filename: D:\source.c
+; OBJ64-NEXT:     +0x0: 11
+; OBJ64-NEXT:     +0x4: 12
+; OBJ64-NEXT:     +0x9: 13
+; OBJ64-NEXT:     +0xE: 14
+; OBJ64-NEXT:     +0x13: 15
+; OBJ64-NEXT:   ]
+; OBJ64-NEXT: ]
+; OBJ64:    }
+
+; Function Attrs: nounwind
+define void @x() #0 {
+entry:
+  call void @z(), !dbg !14
+  ret void, !dbg !15
+}
+
+declare void @z() #1
+
+; Function Attrs: nounwind
+define void @y() #0 {
+entry:
+  call void @z(), !dbg !16
+  ret void, !dbg !17
+}
+
+; Function Attrs: nounwind
+define void @f() #0 {
+entry:
+  call void @x(), !dbg !18
+  call void @y(), !dbg !19
+  call void @z(), !dbg !20
+  ret void, !dbg !21
+}
+
+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 = !{!11, !12}
+!llvm.ident = !{!13}
+
+!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, metadata !9, metadata !10}
+!4 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"x", metadata !"x", metadata !"", i32 3, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @x, null, null, metadata !2, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [x]
+!5 = metadata !{metadata !"source.c", metadata !"D:\5C"}
+!6 = metadata !{i32 786473, metadata !5}          ; [ DW_TAG_file_type ] [D:\/source.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 786478, metadata !5, metadata !6, metadata !"y", metadata !"y", metadata !"", i32 7, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @y, null, null, metadata !2, i32 7} ; [ DW_TAG_subprogram ] [line 7] [def] [y]
+!10 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"f", metadata !"f", metadata !"", i32 11, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @f, null, null, metadata !2, i32 11} ; [ DW_TAG_subprogram ] [line 11] [def] [f]
+!11 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
+!12 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!13 = metadata !{metadata !"clang version 3.5 "}
+!14 = metadata !{i32 4, i32 0, metadata !4, null}
+!15 = metadata !{i32 5, i32 0, metadata !4, null}
+!16 = metadata !{i32 8, i32 0, metadata !9, null} ; [ DW_TAG_imported_declaration ]
+!17 = metadata !{i32 9, i32 0, metadata !9, null}
+!18 = metadata !{i32 12, i32 0, metadata !10, null}
+!19 = metadata !{i32 13, i32 0, metadata !10, null}
+!20 = metadata !{i32 14, i32 0, metadata !10, null}
+!21 = metadata !{i32 15, i32 0, metadata !10, null}