[llvm] r177002 - Refactor GCOV's six constructor arguments into a struct with a getter that

Nick Lewycky nicholas at mxc.ca
Tue Mar 19 11:46:20 PDT 2013


Matt Beaumont-Gay wrote:
> On Wed, Mar 13, 2013 at 10:13 PM, Nick Lewycky<nicholas at mxc.ca>  wrote:
>> Added: llvm/trunk/test/Transforms/GCOVProfiling/version.ll
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/GCOVProfiling/version.ll?rev=177002&view=auto
>> ==============================================================================
>> --- llvm/trunk/test/Transforms/GCOVProfiling/version.ll (added)
>> +++ llvm/trunk/test/Transforms/GCOVProfiling/version.ll Thu Mar 14 00:13:26 2013
>> @@ -0,0 +1,27 @@
>> +; RUN: echo '!9 = metadata !{metadata !"%s", metadata !0}'>  %t1
>> +; RUN: cat %s %t1>  %t2
>> +; RUN: opt -insert-gcov-profiling -disable-output<  %t2
>
> Does opt expect its working directory to be writable?

Yup. It's going to write to the directory specified by the metadata 
emitted in the first echo line. I guess what I really want is the 
basename of %t. Hrm.

  I'm guessing
> that's what "LLVM ERROR: IO failure on output stream." is trying to
> tell me when I run this test on a read-only filesystem.
> (linkagename.ll has the same problem.)
>
>> +; RUN: head -c12 version.gcno | grep '^oncg\*204MVLL$'
>> +; RUN: rm version.gcno
>> +; RUN: not opt -insert-gcov-profiling -default-gcov-version=asdfasdf -disable-output<  %t2
>> +; RUN: opt -insert-gcov-profiling -default-gcov-version=407* -disable-output<  %t2
>> +; RUN: head -c12 version.gcno | grep '^oncg\*704MVLL$'
>> +; RUN: rm version.gcno
>> +
>> +define void @test() {
>> +  ret void, !dbg !8
>> +}
>> +
>> +!llvm.gcov = !{!9}
>> +!llvm.dbg.cu = !{!0}
>> +
>> +!0 = metadata !{metadata !"%s/version", metadata !1}
>> +!1 = metadata !{i32 786449, i32 0, i32 4, metadata !2, metadata !"clang version 3.3 (trunk 176994)", i1 false, metadata !"", i32 0, metadata !3, metadata !3, metadata !4, metadata !3, metadata !""} ; [ DW_TAG_compile_unit ] [./version] [DW_LANG_C_plus_plus]
>> +!2 = metadata !{i32 786473, metadata !"version", metadata !"/usr/local/google/home/nlewycky"} ; [ DW_TAG_file_type ]
>
> Side note: really, your homedir?

*shrug* I built a .ll file with debug info? I can strip out the 
directory if you want, but I didn't bother since it doesn't matter for 
this test.

Nick

>
>> +!3 = metadata !{i32 0}
>> +!4 = metadata !{metadata !5}
>> +!5 = metadata !{i32 786478, i32 0, metadata !6, metadata !"test", metadata !"test", metadata !"", metadata !6, i32 1, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @test, null, null, metadata !3, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [test]
>> +!6 = metadata !{i32 786473, metadata !"<stdin>", metadata !"."} ; [ DW_TAG_file_type ]
>> +!7 = metadata !{i32 786453, i32 0, metadata !"", i32 0, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !3, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
>> +!8= metadata !{i32 1, i32 0, metadata !5, null}
>> +;; !9 is added through the echo line at the top.
>>
>>
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>




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