[PATCH 2/2] [i386] PR82002 Part 2: Correct non-immediate offset/invalid INSN
Daniel Santos
daniel.santos@pobox.com
Fri Nov 3 23:15:00 GMT 2017
On 11/03/2017 04:22 PM, Daniel Santos wrote:
> ...
> How does this patch look? (Also, I've updated comments for
> choose_baseaddr.) Currently re-running tests.
>
> Thanks,
> Daniel
>
> @@ -13110,10 +13125,26 @@ ix86_expand_prologue (void)
> target. */
> if (TARGET_SEH)
> m->fs.sp_valid = false;
> - }
>
> - if (m->call_ms2sysv)
> - ix86_emit_outlined_ms2sysv_save (frame);
> + /* If SP offset is non-immediate after allocation of the stack frame,
> + then emit SSE saves or stub call prior to allocating the rest of the
> + stack frame. This is less efficient for the out-of-line stub because
> + we can't combine allocations across the call barrier, but it's better
> + than using a scratch register. */
> + else if (!x86_64_immediate_operand (GEN_INT (frame.stack_pointer_offset - m->fs.sp_realigned_offset), Pmode))
Oops, and also after fixing this formatting...
Daniel
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