mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-25 00:29:20 +00:00
83902832de
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
82 lines
4.3 KiB
LLVM
82 lines
4.3 KiB
LLVM
; REQUIRES: object-emission
|
|
|
|
; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
|
|
|
|
; Built from the following source with clang -O1
|
|
; struct S { int i; };
|
|
; int function(struct S s, int i) { return s.i + i; }
|
|
|
|
; Due to the X86_64 ABI, 's' is passed in registers and once optimized, the
|
|
; entirety of 's' is never reconstituted, since only the int is required, and
|
|
; thus the variable's location is unknown/dead to debug info.
|
|
|
|
; Future/current work should enable us to describe partial variables, which, in
|
|
; this case, happens to be the entire variable.
|
|
|
|
; CHECK: DW_TAG_subprogram
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK: DW_AT_name {{.*}} "function"
|
|
; CHECK-NOT: {{DW_TAG|NULL}}
|
|
; CHECK: DW_TAG_formal_parameter
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK: DW_AT_name {{.*}} "s"
|
|
; CHECK-NOT: DW_TAG
|
|
; FIXME: Even though 's' is never reconstituted into a struct, the one member
|
|
; variable is still live and used, and so we should be able to describe 's's
|
|
; location as the location of that int.
|
|
; CHECK-NOT: DW_AT_location
|
|
; CHECK-NOT: {{DW_TAG|NULL}}
|
|
; CHECK: DW_TAG_formal_parameter
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK: DW_AT_location
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK: DW_AT_name {{.*}} "i"
|
|
|
|
|
|
%struct.S = type { i32 }
|
|
|
|
; Function Attrs: nounwind readnone uwtable
|
|
define i32 @_Z8function1Si(i32 %s.coerce, i32 %i) #0 {
|
|
entry:
|
|
tail call void @llvm.dbg.declare(metadata !19, metadata !14, metadata !{metadata !"0x102"}), !dbg !20
|
|
tail call void @llvm.dbg.value(metadata !{i32 %i}, i64 0, metadata !15, metadata !{metadata !"0x102"}), !dbg !20
|
|
%add = add nsw i32 %i, %s.coerce, !dbg !20
|
|
ret i32 %add, !dbg !20
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
|
|
|
|
attributes #0 = { nounwind readnone uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
|
attributes #1 = { nounwind readnone }
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!16, !17}
|
|
!llvm.ident = !{!18}
|
|
|
|
!0 = metadata !{metadata !"0x11\004\00clang version 3.5.0 \001\00\000\00\001", metadata !1, metadata !2, metadata !3, metadata !8, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/dead-argument-order.cpp] [DW_LANG_C_plus_plus]
|
|
!1 = metadata !{metadata !"dead-argument-order.cpp", metadata !"/tmp/dbginfo"}
|
|
!2 = metadata !{}
|
|
!3 = metadata !{metadata !4}
|
|
!4 = metadata !{metadata !"0x13\00S\001\0032\0032\000\000\000", metadata !1, null, null, metadata !5, null, null, metadata !"_ZTS1S"} ; [ DW_TAG_structure_type ] [S] [line 1, size 32, align 32, offset 0] [def] [from ]
|
|
!5 = metadata !{metadata !6}
|
|
!6 = metadata !{metadata !"0xd\00i\001\0032\0032\000\000", metadata !1, metadata !"_ZTS1S", metadata !7} ; [ DW_TAG_member ] [i] [line 1, size 32, align 32, offset 0] [from int]
|
|
!7 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
|
|
!8 = metadata !{metadata !9}
|
|
!9 = metadata !{metadata !"0x2e\00function\00function\00_Z8function1Si\002\000\001\000\006\00256\001\002", metadata !1, metadata !10, metadata !11, null, i32 (i32, i32)* @_Z8function1Si, null, null, metadata !13} ; [ DW_TAG_subprogram ] [line 2] [def] [function]
|
|
!10 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/dead-argument-order.cpp]
|
|
!11 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !12, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
|
|
!12 = metadata !{metadata !7, metadata !4, metadata !7}
|
|
!13 = metadata !{metadata !14, metadata !15}
|
|
!14 = metadata !{metadata !"0x101\00s\0016777218\000", metadata !9, metadata !10, metadata !"_ZTS1S"} ; [ DW_TAG_arg_variable ] [s] [line 2]
|
|
!15 = metadata !{metadata !"0x101\00i\0033554434\000", metadata !9, metadata !10, metadata !7} ; [ DW_TAG_arg_variable ] [i] [line 2]
|
|
!16 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
|
|
!17 = metadata !{i32 2, metadata !"Debug Info Version", i32 2}
|
|
!18 = metadata !{metadata !"clang version 3.5.0 "}
|
|
!19 = metadata !{%struct.S* undef}
|
|
!20 = metadata !{i32 2, i32 0, metadata !9, null}
|
|
|