llvm-6502/test/DebugInfo/2010-03-19-DbgDeclare.ll
Duncan P. N. Exon Smith 1ef70ff39b 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

20 lines
713 B
LLVM

; RUN: opt < %s -verify -S | FileCheck %s
; CHECK: [DW_LANG_Mips_Assembler]
define void @Foo(i32 %a, i32 %b) {
entry:
call void @llvm.dbg.declare(metadata i32* null, metadata !1, metadata !{!"0x102"})
ret void
}
!llvm.dbg.cu = !{!2}
!llvm.module.flags = !{!5}
!2 = !{!"0x11\0032769\00clang version 3.3 \000\00\000\00\001", !4, !3, !3, !3, !3, !3} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/blaikie/dev/scratch/scratch.cpp] [lang 0x8001]
!3 = !{}
!0 = !{i32 662302, i32 26, !1, null}
!1 = !{i32 4, !"foo"}
!4 = !{!"scratch.cpp", !"/usr/local/google/home/blaikie/dev/scratch"}
declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
!5 = !{i32 1, !"Debug Info Version", i32 2}