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llvm-mirror/test/DebugInfo/X86/low-pc-cu.ll
Duncan P. N. Exon Smith 9c5542c040 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.

llvm-svn: 224257
2014-12-15 19:07:53 +00:00

47 lines
2.1 KiB
LLVM

; RUN: llc -mtriple=x86_64-apple-darwin -filetype=obj < %s \
; RUN: | llvm-dwarfdump -debug-dump=info - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V4
; RUN: llc -mtriple=x86_64-apple-darwin -filetype=obj -dwarf-version=3 < %s \
; RUN: | llvm-dwarfdump -debug-dump=info - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V3
; Check that we use DW_AT_low_pc and that it has the right encoding depending
; on dwarf version.
; CHECK: DW_TAG_compile_unit [1]
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000)
; CHECK-NOT: DW_TAG
; CHECK-V3: DW_AT_high_pc [DW_FORM_addr]
; CHECK-V4: DW_AT_high_pc [DW_FORM_data4]
; CHECK: DW_TAG_subprogram [2]
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_low_pc [DW_FORM_addr]
; CHECK-NOT: DW_TAG
; CHECK-V3: DW_AT_high_pc [DW_FORM_addr]
; CHECK-V4: DW_AT_high_pc [DW_FORM_data4]
; Function Attrs: nounwind uwtable
define void @z() #0 {
entry:
ret void, !dbg !11
}
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" }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!8, !9}
!llvm.ident = !{!10}
!0 = !{!"0x11\0012\00clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)\000\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/z.c] [DW_LANG_C99]
!1 = !{!"z.c", !"/usr/local/google/home/echristo"}
!2 = !{}
!3 = !{!4}
!4 = !{!"0x2e\00z\00z\00\001\000\001\000\006\00256\000\001", !1, !5, !6, null, void ()* @z, null, null, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [z]
!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/z.c]
!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 ]
!7 = !{null}
!8 = !{i32 2, !"Dwarf Version", i32 4}
!9 = !{i32 1, !"Debug Info Version", i32 2}
!10 = !{!"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)"}
!11 = !{i32 1, i32 0, !4, null}