https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82485
Daniel Santos <daniel.santos at pobox dot com> changed:
What |Removed |Added
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CC| |daniel.santos at pobox dot com
--- Comment #3 from Daniel Santos <daniel.santos at pobox dot com> ---
(In reply to Jakub Jelinek from comment #2)
> Daniel, can you please have a look at this? Thanks.
This looks like a duplicate of pr82002, which I've been a bit slow to resolve.
The fix to this error is a really small patch:
@@ -15682,7 +15682,7 @@ ix86_expand_epilogue (int style)
the stack pointer, if we will restore SSE regs via sp. */
if (TARGET_64BIT
&& m->fs.sp_offset > 0x7fffffff
- && sp_valid_at (frame.stack_realign_offset)
+ && sp_valid_at (frame.stack_realign_offset + 1)
&& (frame.nsseregs + frame.nregs) != 0)
{
pro_epilogue_adjust_stack (stack_pointer_rtx, stack_pointer_rtx,
The problem is that if you throw in an ms to sysv call, it breaks due to the
the SP offset overflowing and needing to use a temp register. So I've
rewritten choose_baseaddr so that when this is needed, it can track the value
of a scratch register so that we don't end up repeating the calculation for
each access beyond the 32-bit range. Anyway, I'll try to finish that up this
week.
