llvm-6502/test/Transforms/Mem2Reg/ConvertDebugInfo.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

53 lines
2.9 KiB
LLVM

; RUN: opt < %s -mem2reg -S | FileCheck %s
define double @testfunc(i32 %i, double %j) nounwind ssp {
entry:
%i_addr = alloca i32 ; <i32*> [#uses=2]
%j_addr = alloca double ; <double*> [#uses=2]
%retval = alloca double ; <double*> [#uses=2]
%0 = alloca double ; <double*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
call void @llvm.dbg.declare(metadata i32* %i_addr, metadata !0, metadata !{}), !dbg !8
; CHECK: call void @llvm.dbg.value(metadata i32 %i, i64 0, metadata ![[IVAR:[0-9]*]], metadata {{.*}})
; CHECK: call void @llvm.dbg.value(metadata double %j, i64 0, metadata ![[JVAR:[0-9]*]], metadata {{.*}})
; CHECK: ![[IVAR]] = {{.*}} ; [ DW_TAG_arg_variable ] [i]
; CHECK: ![[JVAR]] = {{.*}} ; [ DW_TAG_arg_variable ] [j]
store i32 %i, i32* %i_addr
call void @llvm.dbg.declare(metadata double* %j_addr, metadata !9, metadata !{}), !dbg !8
store double %j, double* %j_addr
%1 = load i32* %i_addr, align 4, !dbg !10 ; <i32> [#uses=1]
%2 = add nsw i32 %1, 1, !dbg !10 ; <i32> [#uses=1]
%3 = sitofp i32 %2 to double, !dbg !10 ; <double> [#uses=1]
%4 = load double* %j_addr, align 8, !dbg !10 ; <double> [#uses=1]
%5 = fadd double %3, %4, !dbg !10 ; <double> [#uses=1]
store double %5, double* %0, align 8, !dbg !10
%6 = load double* %0, align 8, !dbg !10 ; <double> [#uses=1]
store double %6, double* %retval, align 8, !dbg !10
br label %return, !dbg !10
return: ; preds = %entry
%retval1 = load double* %retval, !dbg !10 ; <double> [#uses=1]
ret double %retval1, !dbg !10
}
declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
!llvm.dbg.cu = !{!3}
!llvm.module.flags = !{!14}
!0 = !{!"0x101\00i\002\000", !1, !2, !7} ; [ DW_TAG_arg_variable ]
!1 = !{!"0x2e\00testfunc\00testfunc\00testfunc\002\000\001\000\006\000\000\002", !12, !2, !4, null, double (i32, double)* @testfunc, null, null, null} ; [ DW_TAG_subprogram ]
!2 = !{!"0x29", !12} ; [ DW_TAG_file_type ]
!3 = !{!"0x11\001\004.2.1 (Based on Apple Inc. build 5658) (LLVM build)\001\00\000\00\000", !12, !13, !13, null, null, null} ; [ DW_TAG_compile_unit ]
!4 = !{!"0x15\00\000\000\000\000\000\000", !12, !2, null, !5, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!5 = !{!6, !7, !6}
!6 = !{!"0x24\00double\000\0064\0064\000\000\004", !12, !2} ; [ DW_TAG_base_type ]
!7 = !{!"0x24\00int\000\0032\0032\000\000\005", !12, !2} ; [ DW_TAG_base_type ]
!8 = !{i32 2, i32 0, !1, null}
!9 = !{!"0x101\00j\002\000", !1, !2, !6} ; [ DW_TAG_arg_variable ]
!10 = !{i32 3, i32 0, !11, null}
!11 = !{!"0xb\002\000\000", !12, !1} ; [ DW_TAG_lexical_block ]
!12 = !{!"testfunc.c", !"/tmp"}
!13 = !{i32 0}
!14 = !{i32 1, !"Debug Info Version", i32 2}