[llvm] r230880 - DebugInfo: Fix invalid file reference in CodeGen/X86/unknown-location.ll

[Duncan P. N. Exon Smith]

Author: dexonsmith
Date: Sat Feb 28 17:52:24 2015
New Revision: 230880

URL: http://llvm.org/viewvc/llvm-project?rev=230880&view=rev
Log:
DebugInfo: Fix invalid file reference in CodeGen/X86/unknown-location.ll

There are two types of files in the old (current) debug info schema.

    !0 = !{!"some/filename", !"/path/to/dir"}
    !1 = !{!"0x29", !0} ; [ DW_TAG_file_type ]

!1 has a wrapper class called `DIFile` which inherits from `DIScope` and
is referenced in 'scope' fields.

!0 is called a "file node", and debug info nodes with a 'file' field
point at one of these directly -- although they're built in `DIBuilder`
by sending in a `DIFile` and reaching into it.

In the new hierarchy, I unified these nodes as `MDFile` (which `DIFile`
is a lightweight wrapper for) in r230057.  Moving the new hierarchy into
place (and upgrading testcases) caused CodeGen/X86/unknown-location.ll
to start failing -- apparently "0x29" was previously showing up in the
linetable as a filename, causing:

    .loc 2 4 3

(where 2 points at filename "0x29") instead of:

    .loc 1 4 3

(where 1 points at the actual filename).

Change the testcase to use the old schema correctly.

Modified:
    llvm/trunk/test/CodeGen/X86/unknown-location.ll

Modified: llvm/trunk/test/CodeGen/X86/unknown-location.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/unknown-location.ll?rev=230880&r1=230879&r2=230880&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/unknown-location.ll (original)
+++ llvm/trunk/test/CodeGen/X86/unknown-location.ll Sat Feb 28 17:52:24 2015
@@ -8,7 +8,7 @@
 ; CHECK-NEXT:         .loc 1 0 0
 ;      CHECK:         cltd
 ; CHECK-NEXT:         idivl
-; CHECK-NEXT:         .loc 2 4 3
+; CHECK-NEXT:         .loc 1 4 3
 
 define i32 @foo(i32 %w, i32 %x, i32 %y, i32 %z) nounwind {
 entry:
@@ -28,7 +28,7 @@ entry:
 !4 = !{!"0x15\00\000\000\000\000\000\000", !10, !2, null, !5, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !5 = !{!6}
 !6 = !{!"0x24\00int\000\0032\0032\000\000\005", !10, !2} ; [ DW_TAG_base_type ]
-!7 = !{!"0xb\001\0030\000", !2, !1} ; [ DW_TAG_lexical_block ]
+!7 = !{!"0xb\001\0030\000", !10, !1} ; [ DW_TAG_lexical_block ]
 !8 = !MDLocation(line: 4, column: 3, scope: !7)
 !9 = !{!1}
 !10 = !{!"test.c", !"/dir"}