mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-02-18 14:31:27 +00:00
02474a32eb
argument of the llvm.dbg.declare/llvm.dbg.value intrinsics. Previously, DIVariable was a variable-length field that has an optional reference to a Metadata array consisting of a variable number of complex address expressions. In the case of OpPiece expressions this is wasting a lot of storage in IR, because when an aggregate type is, e.g., SROA'd into all of its n individual members, the IR will contain n copies of the DIVariable, all alike, only differing in the complex address reference at the end. By making the complex address into an extra argument of the dbg.value/dbg.declare intrinsics, all of the pieces can reference the same variable and the complex address expressions can be uniqued across the CU, too. Down the road, this will allow us to move other flags, such as "indirection" out of the DIVariable, too. The new intrinsics look like this: declare void @llvm.dbg.declare(metadata %storage, metadata %var, metadata %expr) declare void @llvm.dbg.value(metadata %storage, i64 %offset, metadata %var, metadata %expr) This patch adds a new LLVM-local tag to DIExpressions, so we can detect and pretty-print DIExpression metadata nodes. What this patch doesn't do: This patch does not touch the "Indirect" field in DIVariable; but moving that into the expression would be a natural next step. http://reviews.llvm.org/D4919 rdar://problem/17994491 Thanks to dblaikie and dexonsmith for reviewing this patch! Note: I accidentally committed a bogus older version of this patch previously. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218787 91177308-0d34-0410-b5e6-96231b3b80d8
123 lines
8.2 KiB
LLVM
123 lines
8.2 KiB
LLVM
; RUN: llc -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
|
|
|
|
; Check debug info output for merged global.
|
|
; DW_AT_location
|
|
; 0x03 DW_OP_addr
|
|
; 0x.. .long __MergedGlobals
|
|
; 0x10 DW_OP_constu
|
|
; 0x.. offset
|
|
; 0x22 DW_OP_plus
|
|
|
|
; CHECK: DW_TAG_variable
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK: DW_AT_name {{.*}} "x1"
|
|
; CHECK-NOT: {{DW_TAG|NULL}}
|
|
; CHECK: DW_AT_location [DW_FORM_exprloc] (<0x8> 03 [[ADDR:.. .. .. ..]] 10 00 22 )
|
|
; CHECK: DW_TAG_variable
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK: DW_AT_name {{.*}} "x2"
|
|
; CHECK-NOT: {{DW_TAG|NULL}}
|
|
; CHECK: DW_AT_location [DW_FORM_exprloc] (<0x8> 03 [[ADDR]] 10 04 22 )
|
|
|
|
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32"
|
|
target triple = "thumbv7-apple-macosx10.7.0"
|
|
|
|
@x1 = internal unnamed_addr global i32 1, align 4
|
|
@x2 = internal unnamed_addr global i32 2, align 4
|
|
@x3 = internal unnamed_addr global i32 3, align 4
|
|
@x4 = internal unnamed_addr global i32 4, align 4
|
|
@x5 = global i32 0, align 4
|
|
|
|
define i32 @get1(i32 %a) nounwind optsize ssp {
|
|
tail call void @llvm.dbg.value(metadata !{i32 %a}, i64 0, metadata !10, metadata !{i32 786690}), !dbg !30
|
|
%1 = load i32* @x1, align 4, !dbg !31
|
|
tail call void @llvm.dbg.value(metadata !{i32 %1}, i64 0, metadata !11, metadata !{i32 786690}), !dbg !31
|
|
store i32 %a, i32* @x1, align 4, !dbg !31
|
|
ret i32 %1, !dbg !31
|
|
}
|
|
|
|
define i32 @get2(i32 %a) nounwind optsize ssp {
|
|
tail call void @llvm.dbg.value(metadata !{i32 %a}, i64 0, metadata !13, metadata !{i32 786690}), !dbg !32
|
|
%1 = load i32* @x2, align 4, !dbg !33
|
|
tail call void @llvm.dbg.value(metadata !{i32 %1}, i64 0, metadata !14, metadata !{i32 786690}), !dbg !33
|
|
store i32 %a, i32* @x2, align 4, !dbg !33
|
|
ret i32 %1, !dbg !33
|
|
}
|
|
|
|
define i32 @get3(i32 %a) nounwind optsize ssp {
|
|
tail call void @llvm.dbg.value(metadata !{i32 %a}, i64 0, metadata !16, metadata !{i32 786690}), !dbg !34
|
|
%1 = load i32* @x3, align 4, !dbg !35
|
|
tail call void @llvm.dbg.value(metadata !{i32 %1}, i64 0, metadata !17, metadata !{i32 786690}), !dbg !35
|
|
store i32 %a, i32* @x3, align 4, !dbg !35
|
|
ret i32 %1, !dbg !35
|
|
}
|
|
|
|
define i32 @get4(i32 %a) nounwind optsize ssp {
|
|
tail call void @llvm.dbg.value(metadata !{i32 %a}, i64 0, metadata !19, metadata !{i32 786690}), !dbg !36
|
|
%1 = load i32* @x4, align 4, !dbg !37
|
|
tail call void @llvm.dbg.value(metadata !{i32 %1}, i64 0, metadata !20, metadata !{i32 786690}), !dbg !37
|
|
store i32 %a, i32* @x4, align 4, !dbg !37
|
|
ret i32 %1, !dbg !37
|
|
}
|
|
|
|
define i32 @get5(i32 %a) nounwind optsize ssp {
|
|
tail call void @llvm.dbg.value(metadata !{i32 %a}, i64 0, metadata !27, metadata !{i32 786690}), !dbg !38
|
|
%1 = load i32* @x5, align 4, !dbg !39
|
|
tail call void @llvm.dbg.value(metadata !{i32 %1}, i64 0, metadata !28, metadata !{i32 786690}), !dbg !39
|
|
store i32 %a, i32* @x5, align 4, !dbg !39
|
|
ret i32 %1, !dbg !39
|
|
}
|
|
|
|
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!49}
|
|
|
|
!0 = metadata !{i32 786449, metadata !47, i32 12, metadata !"clang", i1 true, metadata !"", i32 0, metadata !48, metadata !48, metadata !40, metadata !41, metadata !48, null, i32 1} ; [ DW_TAG_compile_unit ]
|
|
!1 = metadata !{i32 786478, metadata !47, metadata !2, metadata !"get1", metadata !"get1", metadata !"", i32 5, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 (i32)* @get1, null, null, metadata !42, i32 5} ; [ DW_TAG_subprogram ] [line 5] [def] [get1]
|
|
!2 = metadata !{i32 786473, metadata !47} ; [ DW_TAG_file_type ]
|
|
!3 = metadata !{i32 786453, metadata !47, metadata !2, metadata !"", i32 0, i64 0, i64 0, i32 0, i32 0, null, metadata !4, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
|
|
!4 = metadata !{metadata !5}
|
|
!5 = metadata !{i32 786468, null, metadata !0, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
|
|
!6 = metadata !{i32 786478, metadata !47, metadata !2, metadata !"get2", metadata !"get2", metadata !"", i32 8, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 (i32)* @get2, null, null, metadata !43, i32 8} ; [ DW_TAG_subprogram ] [line 8] [def] [get2]
|
|
!7 = metadata !{i32 786478, metadata !47, metadata !2, metadata !"get3", metadata !"get3", metadata !"", i32 11, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 (i32)* @get3, null, null, metadata !44, i32 11} ; [ DW_TAG_subprogram ] [line 11] [def] [get3]
|
|
!8 = metadata !{i32 786478, metadata !47, metadata !2, metadata !"get4", metadata !"get4", metadata !"", i32 14, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 (i32)* @get4, null, null, metadata !45, i32 14} ; [ DW_TAG_subprogram ] [line 14] [def] [get4]
|
|
!9 = metadata !{i32 786478, metadata !47, metadata !2, metadata !"get5", metadata !"get5", metadata !"", i32 17, metadata !3, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 (i32)* @get5, null, null, metadata !46, i32 17} ; [ DW_TAG_subprogram ] [line 17] [def] [get5]
|
|
!10 = metadata !{i32 786689, metadata !1, metadata !"a", metadata !2, i32 16777221, metadata !5, i32 0, null} ; [ DW_TAG_arg_variable ]
|
|
!11 = metadata !{i32 786688, metadata !12, metadata !"b", metadata !2, i32 5, metadata !5, i32 0, null} ; [ DW_TAG_auto_variable ]
|
|
!12 = metadata !{i32 786443, metadata !47, metadata !1, i32 5, i32 19, i32 0} ; [ DW_TAG_lexical_block ]
|
|
!13 = metadata !{i32 786689, metadata !6, metadata !"a", metadata !2, i32 16777224, metadata !5, i32 0, null} ; [ DW_TAG_arg_variable ]
|
|
!14 = metadata !{i32 786688, metadata !15, metadata !"b", metadata !2, i32 8, metadata !5, i32 0, null} ; [ DW_TAG_auto_variable ]
|
|
!15 = metadata !{i32 786443, metadata !47, metadata !6, i32 8, i32 17, i32 1} ; [ DW_TAG_lexical_block ]
|
|
!16 = metadata !{i32 786689, metadata !7, metadata !"a", metadata !2, i32 16777227, metadata !5, i32 0, null} ; [ DW_TAG_arg_variable ]
|
|
!17 = metadata !{i32 786688, metadata !18, metadata !"b", metadata !2, i32 11, metadata !5, i32 0, null} ; [ DW_TAG_auto_variable ]
|
|
!18 = metadata !{i32 786443, metadata !47, metadata !7, i32 11, i32 19, i32 2} ; [ DW_TAG_lexical_block ]
|
|
!19 = metadata !{i32 786689, metadata !8, metadata !"a", metadata !2, i32 16777230, metadata !5, i32 0, null} ; [ DW_TAG_arg_variable ]
|
|
!20 = metadata !{i32 786688, metadata !21, metadata !"b", metadata !2, i32 14, metadata !5, i32 0, null} ; [ DW_TAG_auto_variable ]
|
|
!21 = metadata !{i32 786443, metadata !47, metadata !8, i32 14, i32 19, i32 3} ; [ DW_TAG_lexical_block ]
|
|
!25 = metadata !{i32 786484, i32 0, metadata !0, metadata !"x1", metadata !"x1", metadata !"", metadata !2, i32 4, metadata !5, i32 1, i32 1, i32* @x1, null} ; [ DW_TAG_variable ]
|
|
!26 = metadata !{i32 786484, i32 0, metadata !0, metadata !"x2", metadata !"x2", metadata !"", metadata !2, i32 7, metadata !5, i32 1, i32 1, i32* @x2, null} ; [ DW_TAG_variable ]
|
|
!27 = metadata !{i32 786689, metadata !9, metadata !"a", metadata !2, i32 16777233, metadata !5, i32 0, null} ; [ DW_TAG_arg_variable ]
|
|
!28 = metadata !{i32 786688, metadata !29, metadata !"b", metadata !2, i32 17, metadata !5, i32 0, null} ; [ DW_TAG_auto_variable ]
|
|
!29 = metadata !{i32 786443, metadata !47, metadata !9, i32 17, i32 19, i32 4} ; [ DW_TAG_lexical_block ]
|
|
!30 = metadata !{i32 5, i32 16, metadata !1, null}
|
|
!31 = metadata !{i32 5, i32 32, metadata !12, null}
|
|
!32 = metadata !{i32 8, i32 14, metadata !6, null}
|
|
!33 = metadata !{i32 8, i32 29, metadata !15, null}
|
|
!34 = metadata !{i32 11, i32 16, metadata !7, null}
|
|
!35 = metadata !{i32 11, i32 32, metadata !18, null}
|
|
!36 = metadata !{i32 14, i32 16, metadata !8, null}
|
|
!37 = metadata !{i32 14, i32 32, metadata !21, null}
|
|
!38 = metadata !{i32 17, i32 16, metadata !9, null}
|
|
!39 = metadata !{i32 17, i32 32, metadata !29, null}
|
|
!40 = metadata !{metadata !1, metadata !6, metadata !7, metadata !8, metadata !9}
|
|
!41 = metadata !{metadata !25, metadata !26}
|
|
!42 = metadata !{metadata !10, metadata !11}
|
|
!43 = metadata !{metadata !13, metadata !14}
|
|
!44 = metadata !{metadata !16, metadata !17}
|
|
!45 = metadata !{metadata !19, metadata !20}
|
|
!46 = metadata !{metadata !27, metadata !28}
|
|
!47 = metadata !{metadata !"ss3.c", metadata !"/private/tmp"}
|
|
!48 = metadata !{}
|
|
!49 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
|