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37ac8d3622
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226048 91177308-0d34-0410-b5e6-96231b3b80d8
85 lines
3.2 KiB
LLVM
85 lines
3.2 KiB
LLVM
; ModuleID = 'formal_parameter.c'
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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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;
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; From (clang -g -c -O1):
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;
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; int lookup(int* map);
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; int verify(int val);
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; void foo(int map)
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; {
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; lookup(&map);
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; if (!verify(map)) { }
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; }
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;
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; RUN: opt %s -O2 -S -o %t
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; RUN: cat %t | FileCheck --check-prefix=LOWERING %s
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; RUN: llc -filetype=obj %t -o - | llvm-dwarfdump -debug-dump=info - | FileCheck %s
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; Test that we only emit only one DW_AT_formal_parameter "map" for this function.
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; rdar://problem/14874886
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;
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; CHECK: DW_TAG_formal_parameter
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_name {{.*}}map
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; CHECK-NOT: DW_AT_name {{.*}}map
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; Function Attrs: nounwind ssp uwtable
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define void @foo(i32 %map) #0 {
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entry:
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%map.addr = alloca i32, align 4
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store i32 %map, i32* %map.addr, align 4, !tbaa !15
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call void @llvm.dbg.declare(metadata i32* %map.addr, metadata !10, metadata !{!"0x102"}), !dbg !14
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%call = call i32 (i32*, ...)* bitcast (i32 (...)* @lookup to i32 (i32*, ...)*)(i32* %map.addr) #3, !dbg !19
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; Ensure that all dbg intrinsics have the same scope after
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; LowerDbgDeclare is finished with them.
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;
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; LOWERING: call void @llvm.dbg.value{{.*}}, !dbg ![[LOC:.*]]
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; LOWERING: call void @llvm.dbg.value{{.*}}, !dbg ![[LOC]]
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; LOWERING: call void @llvm.dbg.value{{.*}}, !dbg ![[LOC]]
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%0 = load i32* %map.addr, align 4, !dbg !20, !tbaa !15
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%call1 = call i32 (i32, ...)* bitcast (i32 (...)* @verify to i32 (i32, ...)*)(i32 %0) #3, !dbg !20
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ret void, !dbg !22
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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declare i32 @lookup(...)
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declare i32 @verify(...)
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
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attributes #0 = { nounwind ssp uwtable }
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attributes #1 = { 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 ] [formal_parameter.c] [DW_LANG_C99]
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!1 = !{!"formal_parameter.c", !""}
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!2 = !{}
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!3 = !{!4}
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!4 = !{!"0x2e\00foo\00foo\00\001\000\001\000\006\00256\001\002", !1, !5, !6, null, void (i32)* @foo, null, null, !9} ; [ DW_TAG_subprogram ] [line 1] [def] [scope 2] [foo]
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!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [formal_parameter.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 = !{null, !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 = !{!"0x101\00map\0016777217\000", !4, !5, !8} ; [ DW_TAG_arg_variable ] [map] [line 1]
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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 = !MDLocation(line: 1, scope: !4)
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!15 = !{!16, !16, i64 0}
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!16 = !{!"int", !17, i64 0}
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!17 = !{!"omnipotent char", !18, i64 0}
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!18 = !{!"Simple C/C++ TBAA"}
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!19 = !MDLocation(line: 3, scope: !4)
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!20 = !MDLocation(line: 4, scope: !21)
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!21 = !{!"0xb\004\000\000", !1, !4} ; [ DW_TAG_lexical_block ] [formal_parameter.c]
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!22 = !MDLocation(line: 5, scope: !4)
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