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re PR debug/50006 (ICE in in connect_traces, at dwarf2cfi.c:2677)

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PR middle-end/50006
        * explow.c (allocate_dynamic_stack_space): Move suppress_reg_args_size
        setting out to include allocate_stack named pattern as well.
        * builtins.c (expand_builtin_apply): Add ARG_SIZE 0 note.
        * stmt.c (expand_stack_restore): Likewise.

From-SVN: r177764
This commit is contained in:
Richard Henderson 2011-08-15 10:44:11 -07:00 • committed by Richard Henderson
parent 6ea9122292
commit efec771ab9
4 changed files with 18 additions and 3 deletions
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8
gcc/ChangeLog
View file

@ -1,3 +1,11 @@
2011-08-15 Richard Henderson <rth@redhat.com>
PR middle-end/50006
* explow.c (allocate_dynamic_stack_space): Move suppress_reg_args_size
setting out to include allocate_stack named pattern as well.
* builtins.c (expand_builtin_apply): Add ARG_SIZE 0 note.
* stmt.c (expand_stack_restore): Likewise.
2011-08-15 Richard Guenther <rguenther@suse.de>
PR middle-end/50082

1
gcc/builtins.c
View file

@ -1680,6 +1680,7 @@ expand_builtin_apply (rtx function, rtx arguments, rtx argsize)
else
#endif
emit_stack_restore (SAVE_BLOCK, old_stack_level);
fixup_args_size_notes (call_insn, get_last_insn(), 0);
OK_DEFER_POP;

7
gcc/explow.c
View file

@ -1375,6 +1375,9 @@ allocate_dynamic_stack_space (rtx size, unsigned size_align,
else if (flag_stack_check == STATIC_BUILTIN_STACK_CHECK)
probe_stack_range (STACK_CHECK_PROTECT, size);
/* Don't let anti_adjust_stack emit notes. */
suppress_reg_args_size = true;
/* Perform the required allocation from the stack. Some systems do
this differently than simply incrementing/decrementing from the
stack pointer, such as acquiring the space by calling malloc(). */
@ -1425,7 +1428,6 @@ allocate_dynamic_stack_space (rtx size, unsigned size_align,
}
saved_stack_pointer_delta = stack_pointer_delta;
suppress_reg_args_size = true;
if (flag_stack_check && STACK_CHECK_MOVING_SP)
anti_adjust_stack_and_probe (size, false);
@ -1436,13 +1438,14 @@ allocate_dynamic_stack_space (rtx size, unsigned size_align,
The constant size alloca should preserve
crtl->preferred_stack_boundary alignment. */
stack_pointer_delta = saved_stack_pointer_delta;
suppress_reg_args_size = false;
#ifdef STACK_GROWS_DOWNWARD
emit_move_insn (target, virtual_stack_dynamic_rtx);
#endif
}
suppress_reg_args_size = false;
/* Finish up the split stack handling. */
if (final_label != NULL_RTX)
{

5
gcc/stmt.c
View file

@ -2016,10 +2016,13 @@ expand_stack_save (void)
void
expand_stack_restore (tree var)
{
rtx sa = expand_normal (var);
rtx prev, sa = expand_normal (var);
sa = convert_memory_address (Pmode, sa);
prev = get_last_insn ();
emit_stack_restore (SAVE_BLOCK, sa);
fixup_args_size_notes (prev, get_last_insn (), 0);
}
/* Do the insertion of a case label into case_list. The labels are