llvm-6502/test/DebugInfo/COFF/tail-call-without-lexical-scopes.ll
David Majnemer ab15115ee0 CodeGen: Enable DWARF emission for MS ABI targets
This is experimental, just barely enough to get things to not
immediately combust.

A note for those who are curious:
Only lld can successfully link the object files, other linkers truncate
the section names making the debug sections illegible to debuggers.

Even with this in mind, we believe we are having trouble with SECREL
relocations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221245 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 08:03:31 +00:00

79 lines
3.3 KiB
LLVM

; RUN: llc -mcpu=core2 -mtriple=i686-pc-win32 -O0 < %s | FileCheck --check-prefix=X86 %s
; This LL file was generated by running clang on the following code:
; D:\test.cpp:
; 1 void foo();
; 2
; 3 static void bar(int arg, ...) {
; 4 foo();
; 5 }
; 6
; 7 void spam(void) {
; 8 bar(42);
; 9 }
;
; The bar function happens to have no lexical scopes, yet it has one instruction
; with debug information available. This used to be PR19239.
; X86-LABEL: {{^}}"?bar@@YAXHZZ":
; X86-NEXT: # BB
; X86-NEXT: [[JMP_LINE:^L.*]]:{{$}}
; X86: jmp "?foo@@YAXXZ"
; X86-NEXT: [[END_OF_BAR:^L.*]]:{{$}}
; X86-NOT: ret
; X86-LABEL: .section .debug$S,"rd"
; X86: .secrel32 "?bar@@YAXHZZ"
; X86-NEXT: .secidx "?bar@@YAXHZZ"
; X86: .long 0
; X86-NEXT: .long 1
; X86-NEXT: .long {{.*}}
; X86-NEXT: .long [[JMP_LINE]]-"?bar@@YAXHZZ"
; X86-NEXT: .long 4
; X86-LABEL: .long 244
; ModuleID = 'test.cpp'
target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
target triple = "i686-pc-win32"
; Function Attrs: nounwind
define void @"\01?spam@@YAXXZ"() #0 {
entry:
tail call void @"\01?bar@@YAXHZZ"(), !dbg !11
ret void, !dbg !12
}
; Function Attrs: nounwind
define internal void @"\01?bar@@YAXHZZ"() #0 {
entry:
tail call void @"\01?foo@@YAXXZ"() #2, !dbg !13
ret void, !dbg !14
}
declare void @"\01?foo@@YAXXZ"() #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 = !{!8, !9}
!llvm.ident = !{!10}
!0 = metadata !{metadata !"0x11\004\00clang version 3.5.0 \001\00\000\00\002", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [D:\/test.cpp] [DW_LANG_C_plus_plus]
!1 = metadata !{metadata !"test.cpp", metadata !"D:\5C"}
!2 = metadata !{}
!3 = metadata !{metadata !4, metadata !7}
!4 = metadata !{metadata !"0x2e\00spam\00spam\00\007\000\001\000\006\00256\001\007", metadata !1, metadata !5, metadata !6, null, void ()* @"\01?spam@@YAXXZ", null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 7] [def] [spam]
!5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [D:\/test.cpp]
!6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!7 = metadata !{metadata !"0x2e\00bar\00bar\00\003\001\001\000\006\00256\001\003", metadata !1, metadata !5, metadata !6, null, null, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 3] [local] [def] [bar]
!8 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
!9 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
!10 = metadata !{metadata !"clang version 3.5.0 "}
!11 = metadata !{i32 8, i32 0, metadata !4, null}
!12 = metadata !{i32 9, i32 0, metadata !4, null}
!13 = metadata !{i32 4, i32 0, metadata !7, null}
!14 = metadata !{i32 5, i32 0, metadata !7, null}