llvm-6502/test/Transforms/GlobalOpt/2009-03-05-dbg.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

80 lines
3.5 KiB
LLVM

; REQUIRES: asserts
; RUN: opt < %s -globalopt -stats -disable-output 2>&1 | grep "1 globalopt - Number of global vars shrunk to booleans"
@Stop = internal global i32 0 ; <i32*> [#uses=3]
define i32 @foo(i32 %i) nounwind ssp {
entry:
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
call void @llvm.dbg.value(metadata i32 %i, i64 0, metadata !3, metadata !{})
%0 = icmp eq i32 %i, 1, !dbg !7 ; <i1> [#uses=1]
br i1 %0, label %bb, label %bb1, !dbg !7
bb: ; preds = %entry
store i32 0, i32* @Stop, align 4, !dbg !9
%1 = mul nsw i32 %i, 42, !dbg !10 ; <i32> [#uses=1]
call void @llvm.dbg.value(metadata i32 %1, i64 0, metadata !3, metadata !{}), !dbg !10
br label %bb2, !dbg !10
bb1: ; preds = %entry
store i32 1, i32* @Stop, align 4, !dbg !11
br label %bb2, !dbg !11
bb2: ; preds = %bb1, %bb
%i_addr.0 = phi i32 [ %1, %bb ], [ %i, %bb1 ] ; <i32> [#uses=1]
br label %return, !dbg !12
return: ; preds = %bb2
ret i32 %i_addr.0, !dbg !12
}
declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
define i32 @bar() nounwind ssp {
entry:
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
%0 = load i32* @Stop, align 4, !dbg !13 ; <i32> [#uses=1]
%1 = icmp eq i32 %0, 1, !dbg !13 ; <i1> [#uses=1]
br i1 %1, label %bb, label %bb1, !dbg !13
bb: ; preds = %entry
br label %bb2, !dbg !18
bb1: ; preds = %entry
br label %bb2, !dbg !19
bb2: ; preds = %bb1, %bb
%.0 = phi i32 [ 0, %bb ], [ 1, %bb1 ] ; <i32> [#uses=1]
br label %return, !dbg !19
return: ; preds = %bb2
ret i32 %.0, !dbg !19
}
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
!llvm.dbg.gv = !{!0}
!0 = !{!"0x34\00Stop\00Stop\00\002\001\001", !1, !1, !2, i32* @Stop} ; [ DW_TAG_variable ]
!1 = !{!"0x11\001\004.2.1 (Based on Apple Inc. build 5658) (LLVM build)\001\00\000\00\000", !20, !21, !21, null, null, null} ; [ DW_TAG_compile_unit ]
!2 = !{!"0x24\00int\000\0032\0032\000\000\005", null, !1} ; [ DW_TAG_base_type ]
!3 = !{!"0x101\00i\004\000", !4, !1, !2} ; [ DW_TAG_arg_variable ]
!4 = !{!"0x2e\00foo\00foo\00foo\004\000\001\000\006\000\000\000", i32 0, !1, !5, null, null, null, null, null} ; [ DW_TAG_subprogram ]
!5 = !{!"0x15\00\000\000\000\000\000\000", !1, null, null, !6, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!6 = !{!2, !2}
!7 = !{i32 5, i32 0, !8, null}
!8 = !{!"0xb\000\000\000", !20, !4} ; [ DW_TAG_lexical_block ]
!9 = !{i32 6, i32 0, !8, null}
!10 = !{i32 7, i32 0, !8, null}
!11 = !{i32 9, i32 0, !8, null}
!12 = !{i32 11, i32 0, !8, null}
!13 = !{i32 14, i32 0, !14, null}
!14 = !{!"0xb\000\000\000", !20, !15} ; [ DW_TAG_lexical_block ]
!15 = !{!"0x2e\00bar\00bar\00bar\0013\000\001\000\006\000\000\000", i32 0, !1, !16, null, null, null, null, null} ; [ DW_TAG_subprogram ]
!16 = !{!"0x15\00\000\000\000\000\000\000", !1, null, null, !17, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!17 = !{!2}
!18 = !{i32 15, i32 0, !14, null}
!19 = !{i32 16, i32 0, !14, null}
!20 = !{!"g.c", !"/tmp"}
!21 = !{i32 0}