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i386.c (ix86_option_override_internal): Do not enable accumulate-outgoing-args when producing unwind info.

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* i386.c (ix86_option_override_internal): Do not enable
	accumulate-outgoing-args when producing unwind info.

From-SVN: r203171
This commit is contained in:
Jan Hubicka 2013-10-03 19:25:42 +02:00 • committed by Jan Hubicka
parent 4f0bee4c9a
commit c7f36d55a6
2 changed files with 6 additions and 18 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2013-10-03 Jan Hubicka <jh@suse.cz>
* i386.c (ix86_option_override_internal): Do not enable
accumulate-outgoing-args when producing unwind info.
2013-10-03 Wei Mi <wmi@google.com>
* lra-constraints.c (insert_move_for_subreg): New function

19
gcc/config/i386/i386.c
View file

@ -3793,28 +3793,11 @@ ix86_option_override_internal (bool main_args_p)
}
ix86_tune_mask = 1u << ix86_tune;
if ((!USE_IX86_FRAME_POINTER
|| (x86_accumulate_outgoing_args & ix86_tune_mask))
if ((x86_accumulate_outgoing_args & ix86_tune_mask)
&& !(target_flags_explicit & MASK_ACCUMULATE_OUTGOING_ARGS)
&& !optimize_size)
target_flags |= MASK_ACCUMULATE_OUTGOING_ARGS;
/* ??? Unwind info is not correct around the CFG unless either a frame
pointer is present or M_A_O_A is set. Fixing this requires rewriting
unwind info generation to be aware of the CFG and propagating states
around edges. */
if ((flag_unwind_tables || flag_asynchronous_unwind_tables
|| flag_exceptions || flag_non_call_exceptions)
&& flag_omit_frame_pointer
&& !(target_flags & MASK_ACCUMULATE_OUTGOING_ARGS))
{
if (target_flags_explicit & MASK_ACCUMULATE_OUTGOING_ARGS)
warning (0, "unwind tables currently require either a frame pointer "
"or %saccumulate-outgoing-args%s for correctness",
prefix, suffix);
target_flags |= MASK_ACCUMULATE_OUTGOING_ARGS;
}
/* If stack probes are required, the space used for large function
arguments on the stack must also be probed, so enable
-maccumulate-outgoing-args so this happens in the prologue. */