llvm-6502/test/DebugInfo/COFF/asm.ll
Duncan P. N. Exon Smith 83902832de Revert "Revert "DI: Fold constant arguments into a single MDString""
This reverts commit r218918, effectively reapplying r218914 after fixing
an Ocaml bindings test and an Asan crash.  The root cause of the latter
was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a
PR to investigate who requires the loose check (and why).

Original commit message follows.

--

This patch addresses the first stage of PR17891 by folding constant
arguments together into a single MDString.  Integers are stringified and
a `\0` character is used as a separator.

Part of PR17891.

Note: I've attached my testcases upgrade scripts to the PR.  If I've
just broken your out-of-tree testcases, they might help.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219010 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-03 20:01:09 +00:00

185 lines
6.4 KiB
LLVM

; 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:\asm.c:
; 1 void g(void);
; 2
; 3 void f(void) {
; 4 __asm align 4;
; 5 g();
; 6 }
; X86-LABEL: _f:
; X86-NEXT: # BB
; X86-NEXT: [[ASM_LINE:^L.*]]:{{$}}
; X86: [[CALL_LINE:^L.*]]:{{$}}
; X86-NEXT: calll _g
; X86-NEXT: [[RETURN_STMT:.*]]:
; X86-NEXT: ret
; X86-NEXT: [[END_OF_F:.*]]:
;
; X86-LABEL: .section .debug$S,"rd"
; X86-NEXT: .long 4
; X86-NEXT: .long 242
; X86-NEXT: .long [[F2_END:.*]]-[[F2_START:.*]]
; X86-NEXT: [[F2_START]]:
; X86-NEXT: .secrel32 _f
; X86-NEXT: .secidx _f
; X86-NEXT: .long [[END_OF_F]]-_f
; X86-NEXT: [[FILE_SEGMENT_START:[^:]*]]:
; X86-NEXT: .long 0
; X86-NEXT: .long 3
; X86-NEXT: .long [[FILE_SEGMENT_END:.*]]-[[FILE_SEGMENT_START]]
; X86-NEXT: .long [[ASM_LINE]]-_f
; X86-NEXT: .long 4
; X86-NEXT: .long [[CALL_LINE]]-_f
; X86-NEXT: .long 5
; X86-NEXT: .long [[RETURN_STMT]]-_f
; X86-NEXT: .long 6
; X86-NEXT: [[FILE_SEGMENT_END]]:
; X86-NEXT: [[F2_END]]:
; File index to string table offset subsection
; X86-NEXT: .long 244
; X86-NEXT: .long 8
; X86-NEXT: .long 1
; X86-NEXT: .long 0
; String table
; X86-NEXT: .long 243
; X86-NEXT: .long 10
; X86-NEXT: .byte 0
; X86-NEXT: .ascii "D:\\asm.c"
; X86-NEXT: .byte 0
; Padding
; X86-NEXT: .zero 2
; OBJ32: Section {
; OBJ32: Name: .debug$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: 0x6
; OBJ32-NEXT: FilenameSegment [
; OBJ32-NEXT: Filename: D:\asm.c
; FIXME: An empty __asm stmt creates an extra entry.
; We seem to know that these offsets are the same statically during the
; execution of endModule(). See PR18679 for the details.
; OBJ32-NEXT: +0x0: 4
; OBJ32-NEXT: +0x0: 5
; OBJ32-NEXT: +0x5: 6
; OBJ32-NEXT: ]
; OBJ32-NEXT: ]
; OBJ32: }
; X64-LABEL: f:
; X64-NEXT: [[START:.*]]:{{$}}
; X64-NEXT: # BB
; X64-NEXT: subq $40, %rsp
; X64-NEXT: [[ASM_LINE:.*]]:{{$}}
; X64: [[CALL_LINE:.*]]:{{$}}
; 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,"rd"
; 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
; X64-NEXT: [[FILE_SEGMENT_START:[^:]*]]:
; X64-NEXT: .long 0
; X64-NEXT: .long 4
; X64-NEXT: .long [[FILE_SEGMENT_END:.*]]-[[FILE_SEGMENT_START]]
; X64-NEXT: .long [[START]]-f
; X64-NEXT: .long 3
; X64-NEXT: .long [[ASM_LINE]]-f
; X64-NEXT: .long 4
; X64-NEXT: .long [[CALL_LINE]]-f
; X64-NEXT: .long 5
; X64-NEXT: .long [[EPILOG_AND_RET]]-f
; X64-NEXT: .long 6
; 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 10
; X64-NEXT: .byte 0
; X64-NEXT: .ascii "D:\\asm.c"
; X64-NEXT: .byte 0
; Padding
; 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: 0xE
; OBJ64-NEXT: FilenameSegment [
; OBJ64-NEXT: Filename: D:\asm.c
; OBJ64-NEXT: +0x0: 3
; FIXME: An empty __asm stmt creates an extra entry.
; See PR18679 for the details.
; OBJ64-NEXT: +0x4: 4
; OBJ64-NEXT: +0x4: 5
; OBJ64-NEXT: +0x9: 6
; OBJ64-NEXT: ]
; OBJ64-NEXT: ]
; OBJ64: }
; Function Attrs: nounwind
define void @f() #0 {
entry:
call void asm sideeffect inteldialect ".align 4", "~{dirflag},~{fpsr},~{flags}"() #2, !dbg !12
call void @g(), !dbg !13
ret void, !dbg !14
}
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" }
attributes #2 = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10}
!llvm.ident = !{!11}
!0 = metadata !{metadata !"0x11\0012\00clang version 3.5 \000\00\000\00\000", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ 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 !{metadata !"0x2e\00f\00f\00\003\000\001\000\006\00256\000\003", metadata !5, metadata !6, metadata !7, null, void ()* @f, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 3] [def] [f]
!5 = metadata !{metadata !"asm.c", metadata !"D:\5C"}
!6 = metadata !{metadata !"0x29", metadata !5} ; [ DW_TAG_file_type ] [D:\/asm.c]
!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !8, 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 2}
!11 = metadata !{metadata !"clang version 3.5 "}
!12 = metadata !{i32 4, i32 0, metadata !4, null}
!13 = metadata !{i32 5, i32 0, metadata !4, null}
!14 = metadata !{i32 6, i32 0, metadata !4, null}