2014-05-20 18:21:51 +00:00
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; REQUIRES: object-emission
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; RUN: %llc_dwarf -O0 -filetype=obj %s -o - | llvm-dwarfdump -debug-dump=info - | FileCheck %s
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; Ensure that pointer constants are emitted as unsigned data. Alternatively,
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; these could be signless data (dataN).
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; Built with Clang from:
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; template <void *V, void (*F)(), int i>
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; void func() {}
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; template void func<nullptr, nullptr, 42>();
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; CHECK: DW_TAG_subprogram
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; CHECK: DW_TAG_template_value_parameter
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; CHECK: DW_AT_name {{.*}} "V"
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; CHECK: DW_AT_const_value [DW_FORM_udata] (0)
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; CHECK: DW_TAG_template_value_parameter
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; CHECK: DW_AT_name {{.*}} "F"
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; CHECK: DW_AT_const_value [DW_FORM_udata] (0)
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; Function Attrs: nounwind uwtable
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define weak_odr void @_Z4funcILPv0ELPFvvE0ELi42EEvv() #0 {
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entry:
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ret void, !dbg !18
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}
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attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!15, !16}
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!llvm.ident = !{!17}
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IR: Make metadata typeless in assembly
Now that `Metadata` is typeless, reflect that in the assembly. These
are the matching assembly changes for the metadata/value split in
r223802.
- Only use the `metadata` type when referencing metadata from a call
intrinsic -- i.e., only when it's used as a `Value`.
- Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode`
when referencing it from call intrinsics.
So, assembly like this:
define @foo(i32 %v) {
call void @llvm.foo(metadata !{i32 %v}, metadata !0)
call void @llvm.foo(metadata !{i32 7}, metadata !0)
call void @llvm.foo(metadata !1, metadata !0)
call void @llvm.foo(metadata !3, metadata !0)
call void @llvm.foo(metadata !{metadata !3}, metadata !0)
ret void, !bar !2
}
!0 = metadata !{metadata !2}
!1 = metadata !{i32* @global}
!2 = metadata !{metadata !3}
!3 = metadata !{}
turns into this:
define @foo(i32 %v) {
call void @llvm.foo(metadata i32 %v, metadata !0)
call void @llvm.foo(metadata i32 7, metadata !0)
call void @llvm.foo(metadata i32* @global, metadata !0)
call void @llvm.foo(metadata !3, metadata !0)
call void @llvm.foo(metadata !{!3}, metadata !0)
ret void, !bar !2
}
!0 = !{!2}
!1 = !{i32* @global}
!2 = !{!3}
!3 = !{}
I wrote an upgrade script that handled almost all of the tests in llvm
and many of the tests in cfe (even handling many `CHECK` lines). I've
attached it (or will attach it in a moment if you're speedy) to PR21532
to help everyone update their out-of-tree testcases.
This is part of PR21532.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224257 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-15 19:07:53 +00:00
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!0 = !{!"0x11\004\00clang version 3.5.0 \000\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/constant-pointers.cpp] [DW_LANG_C_plus_plus]
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!1 = !{!"constant-pointers.cpp", !"/tmp/dbginfo"}
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!2 = !{}
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!3 = !{!4}
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!4 = !{!"0x2e\00func<nullptr, nullptr, 42>\00func<nullptr, nullptr, 42>\00_Z4funcILPv0ELPFvvE0ELi42EEvv\002\000\001\000\006\00256\000\002", !1, !5, !6, null, void ()* @_Z4funcILPv0ELPFvvE0ELi42EEvv, !8, null, !2} ; [ DW_TAG_subprogram ] [line 2] [def] [func<nullptr, nullptr, 42>]
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!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/constant-pointers.cpp]
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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}
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!8 = !{!9, !11, !13}
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!9 = !{!"0x30\00V\000\000", null, !10, i8 0, null} ; [ DW_TAG_template_value_parameter ]
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!10 = !{!"0xf\00\000\0064\0064\000\000", null, null, null} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
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!11 = !{!"0x30\00F\000\000", null, !12, i8 0, null} ; [ DW_TAG_template_value_parameter ]
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!12 = !{!"0xf\00\000\0064\0064\000\000", null, null, !6} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
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!13 = !{!"0x30\00i\000\000", null, !14, i32 42, null} ; [ DW_TAG_template_value_parameter ]
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!14 = !{!"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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!15 = !{i32 2, !"Dwarf Version", i32 4}
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!16 = !{i32 2, !"Debug Info Version", i32 2}
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!17 = !{!"clang version 3.5.0 "}
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2015-01-14 22:27:36 +00:00
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!18 = !MDLocation(line: 3, scope: !4)
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