mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-25 16:29:20 +00:00
0fcb9cb1c1
This doesn't fix the abstract variable handling yet, but it introduces a similar delay mechanism as was added for subprograms, causing DW_AT_location to be reordered to the beginning of the attribute list for local variables, and fixes all the test fallout for that. A subsequent commit will remove the abstract variable handling in DbgVariable and just do the abstract variable lookup at module end to ensure that abstract variables introduced after their concrete counterparts are appropriately referenced by the concrete variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210943 91177308-0d34-0410-b5e6-96231b3b80d8
107 lines
4.4 KiB
LLVM
107 lines
4.4 KiB
LLVM
; RUN: llc -O1 -filetype=obj -o - %s | llvm-dwarfdump -debug-dump=all - | FileCheck %s
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; Generated with -O1 from:
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; int f1();
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; void f2(int*);
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; int f3(int);
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;
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; int foo() {
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; int i = 3;
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; f3(i);
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; i = 7;
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; i = f1();
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; f2(&i);
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; return 0;
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; }
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;
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; Test that we generate valid debug info for optimized code,
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; particularly variables that are described as constants and passed
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; by reference.
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; rdar://problem/14874886
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;
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; CHECK: .debug_info contents:
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; CHECK: DW_TAG_variable
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_location [DW_FORM_data4] ([[LOC:.*]])
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_name{{.*}}"i"
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; CHECK: .debug_loc contents:
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; CHECK: [[LOC]]:
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; consts 0x00000003
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; CHECK: Beginning address offset: 0x0000000000000{{.*}}
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; CHECK: Ending address offset: [[C1:.*]]
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; CHECK: Location description: 11 03
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; consts 0x00000007
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; CHECK: Beginning address offset: [[C1]]
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; CHECK: Ending address offset: [[C2:.*]]
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; CHECK: Location description: 11 07
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; rax, piece 0x00000004
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; CHECK: Beginning address offset: [[C2]]
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; CHECK: Ending address offset: [[R1:.*]]
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; CHECK: Location description: 50 93 04
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; rdi+0
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; CHECK: Beginning address offset: [[R1]]
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; CHECK: Ending address offset: [[R2:.*]]
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; CHECK: Location description: 75 00
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;
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.9.0"
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; Function Attrs: nounwind ssp uwtable
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define i32 @foo() #0 {
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entry:
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%i = alloca i32, align 4
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call void @llvm.dbg.value(metadata !14, i64 0, metadata !10), !dbg !15
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%call = call i32 @f3(i32 3) #3, !dbg !16
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call void @llvm.dbg.value(metadata !17, i64 0, metadata !10), !dbg !18
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%call1 = call i32 (...)* @f1() #3, !dbg !19
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call void @llvm.dbg.value(metadata !{i32 %call1}, i64 0, metadata !10), !dbg !19
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store i32 %call1, i32* %i, align 4, !dbg !19, !tbaa !20
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call void @llvm.dbg.value(metadata !{i32* %i}, i64 0, metadata !10), !dbg !24
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call void @f2(i32* %i) #3, !dbg !24
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ret i32 0, !dbg !25
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}
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declare i32 @f3(i32)
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declare i32 @f1(...)
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declare void @f2(i32*)
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata) #2
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attributes #0 = { nounwind ssp uwtable }
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attributes #2 = { nounwind readnone }
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attributes #3 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!11, !12}
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!llvm.ident = !{!13}
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!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5.0 ", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [dbg-value-const-byref.c] [DW_LANG_C99]
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!1 = metadata !{metadata !"dbg-value-const-byref.c", metadata !""}
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!2 = metadata !{}
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!3 = metadata !{metadata !4}
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!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"foo", metadata !"foo", metadata !"", i32 5, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 true, i32 ()* @foo, null, null, metadata !9, i32 5} ; [ DW_TAG_subprogram ] [line 5] [def] [foo]
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!5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [dbg-value-const-byref.c]
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!6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = metadata !{metadata !8}
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!8 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
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!9 = metadata !{metadata !10}
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!10 = metadata !{i32 786688, metadata !4, metadata !"i", metadata !5, i32 6, metadata !8, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [i] [line 6]
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!11 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
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!12 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
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!13 = metadata !{metadata !"clang version 3.5.0 "}
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!14 = metadata !{i32 3}
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!15 = metadata !{i32 6, i32 0, metadata !4, null}
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!16 = metadata !{i32 7, i32 0, metadata !4, null}
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!17 = metadata !{i32 7}
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!18 = metadata !{i32 8, i32 0, metadata !4, null} ; [ DW_TAG_imported_declaration ]
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!19 = metadata !{i32 9, i32 0, metadata !4, null}
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!20 = metadata !{metadata !21, metadata !21, i64 0}
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!21 = metadata !{metadata !"int", metadata !22, i64 0}
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!22 = metadata !{metadata !"omnipotent char", metadata !23, i64 0}
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!23 = metadata !{metadata !"Simple C/C++ TBAA"}
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!24 = metadata !{i32 10, i32 0, metadata !4, null}
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!25 = metadata !{i32 11, i32 0, metadata !4, null}
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