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4a5feedcaa
This commit moves `MDLocation`, finishing off PR21433. There's an
accompanying clang commit for frontend testcases. I'll attach the
testcase upgrade script I used to PR21433 to help out-of-tree
frontends/backends.
This changes the schema for `DebugLoc` and `DILocation` from:
!{i32 3, i32 7, !7, !8}
to:
!MDLocation(line: 3, column: 7, scope: !7, inlinedAt: !8)
Note that empty fields (line/column: 0 and inlinedAt: null) don't get
printed by the assembly writer.
llvm-svn: 226048
52 lines
2.1 KiB
LLVM
52 lines
2.1 KiB
LLVM
; RUN: llc < %s - | FileCheck %s
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;
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; FIXME: A potentially more interesting test case would be:
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; %call = @bar()
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; dbg.value j=0
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; %call2 = @bar()
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; dbg.value j=%call
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;
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; We cannot current handle the above sequence because codegenprepare
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; hoists the second dbg.value above %call2, which then appears to
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; conflict with j=0. It does this because SelectionDAG cannot handle
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; global debug values.
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target triple = "x86_64-apple-darwin10.0.0"
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;CHECK: ## DW_OP_consts
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;CHECK-NEXT: .byte 42
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define i32 @foobar() nounwind readonly noinline ssp {
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entry:
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tail call void @llvm.dbg.value(metadata i32 42, i64 0, metadata !6, metadata !{!"0x102"}), !dbg !9
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%call = tail call i32 @bar(), !dbg !11
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tail call void @llvm.dbg.value(metadata i32 %call, i64 0, metadata !6, metadata !{!"0x102"}), !dbg !11
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%call2 = tail call i32 @bar(), !dbg !11
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%add = add nsw i32 %call2, %call, !dbg !12
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ret i32 %add, !dbg !10
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}
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
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declare i32 @bar() nounwind readnone
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!17}
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!0 = !{!"0x2e\00foobar\00foobar\00foobar\0012\000\001\000\006\000\001\000", !15, !1, !3, null, i32 ()* @foobar, null, null, !14} ; [ DW_TAG_subprogram ]
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!1 = !{!"0x29", !15} ; [ DW_TAG_file_type ]
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!2 = !{!"0x11\0012\00clang version 2.9 (trunk 114183)\001\00\000\00\001", !15, !16, !16, !13, null, null} ; [ DW_TAG_compile_unit ]
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!3 = !{!"0x15\00\000\000\000\000\000\000", !15, !1, null, !4, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!4 = !{!5}
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!5 = !{!"0x24\00int\000\0032\0032\000\000\005", !15, !1} ; [ DW_TAG_base_type ]
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!6 = !{!"0x100\00j\0015\000", !7, !1, !5} ; [ DW_TAG_auto_variable ]
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!7 = !{!"0xb\0012\0052\000", !15, !0} ; [ DW_TAG_lexical_block ]
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!8 = !{i32 42}
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!9 = !MDLocation(line: 15, column: 12, scope: !7)
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!10 = !MDLocation(line: 23, column: 3, scope: !7)
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!11 = !MDLocation(line: 17, column: 3, scope: !7)
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!12 = !MDLocation(line: 18, column: 3, scope: !7)
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!13 = !{!0}
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!14 = !{!6}
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!15 = !{!"mu.c", !"/private/tmp"}
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!16 = !{i32 0}
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!17 = !{i32 1, !"Debug Info Version", i32 2}
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