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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
107 lines
3.7 KiB
LLVM
107 lines
3.7 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 i32 3, i64 0, metadata !10, metadata !{!"0x102"}), !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 i32 7, i64 0, metadata !10, metadata !{!"0x102"}), !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, metadata !{!"0x102"}), !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, metadata !{!"0x102"}), !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, 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 = !{!"0x11\0012\00clang version 3.5.0 \001\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [dbg-value-const-byref.c] [DW_LANG_C99]
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!1 = !{!"dbg-value-const-byref.c", !""}
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!2 = !{}
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!3 = !{!4}
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!4 = !{!"0x2e\00foo\00foo\00\005\000\001\000\006\000\001\005", !1, !5, !6, null, i32 ()* @foo, null, null, !9} ; [ DW_TAG_subprogram ] [line 5] [def] [foo]
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!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [dbg-value-const-byref.c]
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!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = !{!8}
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!8 = !{!"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]
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!9 = !{!10}
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!10 = !{!"0x100\00i\006\000", !4, !5, !8} ; [ DW_TAG_auto_variable ] [i] [line 6]
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!11 = !{i32 2, !"Dwarf Version", i32 2}
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!12 = !{i32 1, !"Debug Info Version", i32 2}
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!13 = !{!"clang version 3.5.0 "}
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!14 = !{i32 3}
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!15 = !MDLocation(line: 6, scope: !4)
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!16 = !MDLocation(line: 7, scope: !4)
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!17 = !{i32 7}
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!18 = !MDLocation(line: 8, scope: !4)
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!19 = !MDLocation(line: 9, scope: !4)
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!20 = !{!21, !21, i64 0}
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!21 = !{!"int", !22, i64 0}
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!22 = !{!"omnipotent char", !23, i64 0}
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!23 = !{!"Simple C/C++ TBAA"}
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!24 = !MDLocation(line: 10, scope: !4)
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!25 = !MDLocation(line: 11, scope: !4)
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