[cfe-dev] make check failures

[Dale Johannesen]

On Dec 3, 2010, at 3:41 AM, Jay Foad wrote:

> On 29 November 2010 23:33, dalej <dalej at apple.com> wrote:
>>
>> On Nov 26, 2010, at 2:11 AM, Jay Foad wrote:
>>
>>> I've just tried "make check" on a fresh checkout of llvm and  
>>> clang. I get:
>>
>> These tests are actually testing llvm-gcc, not llvm.  You can  
>> almost certainly get them to pass by building llvm-gcc and keeping  
>> it up to date.
>
> When I configure LLVM --with-llvmgcc --with-llvmgxx, make check-all
> reports loads of stuff ending with:
>
>    [...]
>    LLVM :: Transforms/ScalarRepl/vector_promote.ll
>    [...]
>
> Here's one of the failures, picked at random:
>
>
> ********************
> FAIL: LLVM :: Transforms/ScalarRepl/vector_promote.ll (7914 of 8396)
> ******************** TEST 'LLVM ::
> Transforms/ScalarRepl/vector_promote.ll' FAILED ********************
> Script:
> --
> opt < /home/jay/svn/llvm-project/llvm/trunk/test/Transforms/ 
> ScalarRepl/vector_promote.ll
> -scalarrepl -S | FileCheck
> /home/jay/svn/llvm-project/llvm/trunk/test/Transforms/ScalarRepl/ 
> vector_promote.ll
> --
> Exit Code: 1
> Command Output (stderr):
> --
> /home/jay/svn/llvm-project/llvm/trunk/test/Transforms/ScalarRepl/ 
> vector_promote.ll:99:15:
> error: expected string not found in input
> ; CHECK-NEXT: bitcast <2 x float> %X to i64
>              ^
> <stdin>:48:18: note: scanning from here
> define i64 @test6(<2 x float> %X) {
>                 ^
> <stdin>:49:9: note: possible intended match here
> %tmp = bitcast <2 x float> %X to <1 x i64> ; <<1 x i64>> [#uses=1]
>        ^
> --
> Is this the "disaster" of which Daniel spake?

I don't think so, llvm-gcc is not involved at all in running that  
test.   This looks more like you're picking up an old version of "opt"  
somehow.  The output for this test changed about a month ago and the  
result you're getting is consistent with what it looked like before  
the change.

> Is there an easy way to run some regression tests on the GCC front  
> end?
>
> Thanks,
> Jay.