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https://github.com/c64scene-ar/llvm-6502.git
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6d9dbd5526
Rather than using the full power of target-specific addressing modes in DBG_VALUEs with Frame Indicies, simply use Frame Index + Offset. This reduces the complexity of debug info handling down to two representations of values (reg+offset and frame index+offset) rather than three or four. Ideally we could ensure that frame indicies had been eliminated by the time we reached an assembly or dwarf generation, but I haven't spent the time to figure out where the FIs are leaking through into that & whether there's a good place to convert them. Some FI+offset=>reg+offset conversion is done (see PrologEpilogInserter, for example) which is necessary for some SelectionDAG assumptions about registers, I believe, but it might be possible to make this a more thorough conversion & ensure there are no remaining FIs no matter how instruction selection is performed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184066 91177308-0d34-0410-b5e6-96231b3b80d8
67 lines
5.1 KiB
LLVM
67 lines
5.1 KiB
LLVM
; RUN: llc < %s | FileCheck %s
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; Test to check argument y's debug info uses FI
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; Radar 10048772
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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"
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target triple = "thumbv7-apple-ios"
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%struct.tag_s = type { i32, i32, i32 }
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define void @foo(%struct.tag_s* nocapture %this, %struct.tag_s* %c, i64 %x, i64 %y, %struct.tag_s* nocapture %ptr1, %struct.tag_s* nocapture %ptr2) nounwind ssp {
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tail call void @llvm.dbg.value(metadata !{%struct.tag_s* %this}, i64 0, metadata !5), !dbg !20
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tail call void @llvm.dbg.value(metadata !{%struct.tag_s* %c}, i64 0, metadata !13), !dbg !21
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tail call void @llvm.dbg.value(metadata !{i64 %x}, i64 0, metadata !14), !dbg !22
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tail call void @llvm.dbg.value(metadata !{i64 %y}, i64 0, metadata !17), !dbg !23
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;CHECK: @DEBUG_VALUE: foo:y <- [R7+8]
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tail call void @llvm.dbg.value(metadata !{%struct.tag_s* %ptr1}, i64 0, metadata !18), !dbg !24
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tail call void @llvm.dbg.value(metadata !{%struct.tag_s* %ptr2}, i64 0, metadata !19), !dbg !25
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%1 = icmp eq %struct.tag_s* %c, null, !dbg !26
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br i1 %1, label %3, label %2, !dbg !26
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; <label>:2 ; preds = %0
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tail call void @foobar(i64 %x, i64 %y) nounwind, !dbg !28
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br label %3, !dbg !28
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; <label>:3 ; preds = %0, %2
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ret void, !dbg !29
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}
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declare void @foobar(i64, i64)
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declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
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!llvm.dbg.cu = !{!0}
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!0 = metadata !{i32 786449, metadata !32, i32 12, metadata !"Apple clang version 3.0 (tags/Apple/clang-211.10.1) (based on LLVM 3.0svn)", i1 true, metadata !"", i32 0, null, null, metadata !30, null, null, null} ; [ DW_TAG_compile_unit ]
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!1 = metadata !{i32 786478, metadata !2, metadata !2, metadata !"foo", metadata !"foo", metadata !"", i32 11, metadata !3, i1 false, i1 true, i32 0, i32 0, i32 0, i32 256, i1 true, void (%struct.tag_s*, %struct.tag_s*, i64, i64, %struct.tag_s*, %struct.tag_s*)* @foo, null, null, metadata !31, i32 11} ; [ DW_TAG_subprogram ]
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!2 = metadata !{i32 786473, metadata !32} ; [ DW_TAG_file_type ]
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!3 = metadata !{i32 786453, metadata !32, metadata !2, metadata !"", i32 0, i64 0, i64 0, i32 0, i32 0, i32 0, metadata !4, i32 0, i32 0} ; [ DW_TAG_subroutine_type ]
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!4 = metadata !{null}
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!5 = metadata !{i32 786689, metadata !1, metadata !"this", metadata !2, i32 16777227, metadata !6, i32 0, null} ; [ DW_TAG_arg_variable ]
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!6 = metadata !{i32 786447, null, metadata !0, metadata !"", i32 0, i64 32, i64 32, i64 0, i32 0, metadata !7} ; [ DW_TAG_pointer_type ]
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!7 = metadata !{i32 786451, metadata !32, metadata !0, metadata !"tag_s", i32 5, i64 96, i64 32, i32 0, i32 0, i32 0, metadata !8, i32 0, i32 0} ; [ DW_TAG_structure_type ]
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!8 = metadata !{metadata !9, metadata !11, metadata !12}
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!9 = metadata !{i32 786445, metadata !32, metadata !7, metadata !"x", i32 6, i64 32, i64 32, i64 0, i32 0, metadata !10} ; [ DW_TAG_member ]
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!10 = metadata !{i32 786468, null, metadata !0, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
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!11 = metadata !{i32 786445, metadata !32, metadata !7, metadata !"y", i32 7, i64 32, i64 32, i64 32, i32 0, metadata !10} ; [ DW_TAG_member ]
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!12 = metadata !{i32 786445, metadata !32, metadata !7, metadata !"z", i32 8, i64 32, i64 32, i64 64, i32 0, metadata !10} ; [ DW_TAG_member ]
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!13 = metadata !{i32 786689, metadata !1, metadata !"c", metadata !2, i32 33554443, metadata !6, i32 0, null} ; [ DW_TAG_arg_variable ]
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!14 = metadata !{i32 786689, metadata !1, metadata !"x", metadata !2, i32 50331659, metadata !15, i32 0, null} ; [ DW_TAG_arg_variable ]
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!15 = metadata !{i32 786454, metadata !32, metadata !0, metadata !"UInt64", i32 1, i64 0, i64 0, i64 0, i32 0, metadata !16} ; [ DW_TAG_typedef ]
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!16 = metadata !{i32 786468, null, metadata !0, metadata !"long long unsigned int", i32 0, i64 64, i64 32, i64 0, i32 0, i32 7} ; [ DW_TAG_base_type ]
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!17 = metadata !{i32 786689, metadata !1, metadata !"y", metadata !2, i32 67108875, metadata !15, i32 0, null} ; [ DW_TAG_arg_variable ]
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!18 = metadata !{i32 786689, metadata !1, metadata !"ptr1", metadata !2, i32 83886091, metadata !6, i32 0, null} ; [ DW_TAG_arg_variable ]
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!19 = metadata !{i32 786689, metadata !1, metadata !"ptr2", metadata !2, i32 100663307, metadata !6, i32 0, null} ; [ DW_TAG_arg_variable ]
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!20 = metadata !{i32 11, i32 24, metadata !1, null}
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!21 = metadata !{i32 11, i32 44, metadata !1, null}
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!22 = metadata !{i32 11, i32 54, metadata !1, null}
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!23 = metadata !{i32 11, i32 64, metadata !1, null}
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!24 = metadata !{i32 11, i32 81, metadata !1, null}
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!25 = metadata !{i32 11, i32 101, metadata !1, null}
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!26 = metadata !{i32 12, i32 3, metadata !27, null}
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!27 = metadata !{i32 786443, metadata !1, i32 11, i32 107, metadata !2, i32 0} ; [ DW_TAG_lexical_block ]
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!28 = metadata !{i32 13, i32 5, metadata !27, null}
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!29 = metadata !{i32 14, i32 1, metadata !27, null}
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!30 = metadata !{metadata !1}
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!31 = metadata !{metadata !5, metadata !13, metadata !14, metadata !17, metadata !18, metadata!19}
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!32 = metadata !{metadata !"one.c", metadata !"/Volumes/Athwagate/R10048772"}
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