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Re: update dwarf2 asm unwind info
On Thu, Aug 7, 2008 at 11:59 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Thu, Aug 7, 2008 at 9:57 AM, Richard Henderson <rth@twiddle.net> wrote:
>> H.J. Lu wrote:
>>>
>>> Can you try
>>>
>>> [hjl@gnu-33 gcc]$ make check-gcc RUNTESTFLAGS="pch.exp --target_board
>>> 'unix{-m32}'"
>>
>> All passes here.
>>
>
> I updated a testcase to
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37033
>
The bug goes like this:
1. Assembler supports CFI directives.
2. PCH generates PCH file with __GCC_HAVE_DWARF2_CFI_ASM defined.
3. When -E is used on the PCH file, __GCC_HAVE_DWARF2_CFI_ASM
isn't defined since no CFI directive is ever used and we get
save-temps-1.c:2:26: warning: save-temps-1.h.gch: not used because
`__GCC_HAVE_DWARF2_CFI_ASM' not defined
--
H.J.