[llvm-commits] [llvm] r134018 - in /llvm/trunk: lib/Target/X86/X86FastISel.cpp lib/Target/X86/X86FloatingPoint.cpp lib/Target/X86/X86ISelLowering.cpp lib/Target/X86/X86InstrFPStack.td lib/Target/X86/X86RegisterInfo.cpp lib/Target/X86/X86RegisterInfo.td test/CodeGen/X86/inline-asm-fpstack.ll

[Chad Rosier]

On Jul 1, 2011, at 11:34 AM, Jakob Stoklund Olesen wrote:

> 
> On Jun 30, 2011, at 1:33 PM, Chad Rosier wrote:
> 
>> Hi Jakob,
>> I'm seeing a failure for one of the clang llvm-gcc tests.  Bisect brought me to this revision, which seems very relevant.
>> gcc.target/i386/pr30848.c (test for excess errors)
>> mcrosier$ /Users/mcrosier/llvm-clean/install/bin/clang /Users/mcrosier/gcc-4_2-testsuite/src/gcc.target/i386/pr30848.c    -ansi -pedantic-errors -fno-show-column -S  -o pr30848.s
>> fatal error: error in backend: Inline asm fixed outputs must be last on the x87 stack
> 
> Clang is failing correctly, but I fixed the message thusly:
> 
> clang -c /d/g/clang-tests/gcc-4_2-testsuite/src/gcc.target/i386/pr30848.c 
> fatal error: error in backend: Inline asm output regs must be last on the x87 stack
> 
> However, DejaGNU is still failing the test:
> 
> $ cat src/gcc.target/i386/pr30848.c 
> /* { dg-do compile } */
> 
> void foo(double d)
> {
>   __asm__ ("" : "=u" (d));  /* { dg-error "output regs" } */
> }
> 
> Anyone know how to fix the test suite?
> 

I tried a few different regular expressions that I expected would work, but it still failed miserably?  Hopefully, someone with more DejaGNU experience can speak up.

 Chad

> Here is gcc-4.2:
> 
> $ gcc-4.2 -c /d/g/clang-tests/gcc-4_2-testsuite/src/gcc.target/i386/pr30848.c 
> /d/g/clang-tests/gcc-4_2-testsuite/src/gcc.target/i386/pr30848.c: In function ‘foo’:
> /d/g/clang-tests/gcc-4_2-testsuite/src/gcc.target/i386/pr30848.c:5: error: output regs must be grouped at top of stack
> 
> /jakob
> 

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