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stmt.c (expand_start_bindings): Allow callers to pass a flag indicating that no NOTE_INSN_BLOCK_BEG note is... 

* stmt.c (expand_start_bindings): Allow callers to pass a flag
	indicating that no NOTE_INSN_BLOCK_BEG note is required.
	(expand_start_target_temps): Use it.
	* except.c (expand_eh_region_start_for_decl): Likewise.
	* expr.c (expand_expr): Likewise.

From-SVN: r29484
This commit is contained in:
Mark Mitchell 1999-09-17 22:01:23 +00:00 committed by Mark Mitchell
parent 05ca599071
commit 8e91754ed4
4 changed files with 33 additions and 10 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
Fri Sep 17 15:03:16 1999 Mark Mitchell <mark@codesourcery.com>
* stmt.c (expand_start_bindings): Allow callers to pass a flag
indicating that no NOTE_INSN_BLOCK_BEG note is required.
(expand_start_target_temps): Use it.
* except.c (expand_eh_region_start_for_decl): Likewise.
* expr.c (expand_expr): Likewise.
Fri Sep 17 15:05:27 1999 Gavin Romig-Koch <gavin@cygnus.com>
* fold-const.c (operand_equal_p): Pay attention to side effects.

2
gcc/except.c
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@ -1418,7 +1418,7 @@ expand_eh_region_start_for_decl (decl)
/* We need a new block to record the start and end of the
dynamic handler chain. We also want to prevent jumping into
a try block. */
expand_start_bindings (0);
expand_start_bindings (2);
/* But we don't need or want a new temporary level. */
pop_temp_slots ();

6
gcc/expr.c
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@ -6104,7 +6104,7 @@ expand_expr (exp, target, tmode, modifier)
/* Need to open a binding contour here because
if there are any cleanups they must be contained here. */
expand_start_bindings (0);
expand_start_bindings (2);
/* Mark the corresponding BLOCK for output in its proper place. */
if (TREE_OPERAND (exp, 2) != 0
@ -6793,7 +6793,7 @@ expand_expr (exp, target, tmode, modifier)
{
/* Start a new binding layer that will keep track of all cleanup
actions to be performed. */
expand_start_bindings (0);
expand_start_bindings (2);
target_temp_slot_level = temp_slot_level;
@ -8185,7 +8185,7 @@ expand_expr (exp, target, tmode, modifier)
/* Start a new binding layer that will keep track of all cleanup
actions to be performed. */
expand_start_bindings (0);
expand_start_bindings (2);
target_temp_slot_level = temp_slot_level;

27
gcc/stmt.c
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@ -3168,15 +3168,30 @@ tail_recursion_args (actuals, formals)
/* Generate the RTL code for entering a binding contour.
The variables are declared one by one, by calls to `expand_decl'.
EXIT_FLAG is nonzero if this construct should be visible to
`exit_something'. */
FLAGS is a bitwise or of the following flags:
1 - Nonzero if this construct should be visible to
`exit_something'.
2 - Nonzero if this contour does not require a
NOTE_INSN_BLOCK_BEG note. Virtually all calls from
language-independent code should set this flag because they
will not create corresponding BLOCK nodes. (There should be
a one-to-one correspondence between NOTE_INSN_BLOCK_BEG notes
and BLOCKs.) If this flag is set, MARK_ENDS should be zero
when expand_end_bindings is called. */
void
expand_start_bindings (exit_flag)
int exit_flag;
expand_start_bindings (flags)
int flags;
{
struct nesting *thisblock = ALLOC_NESTING ();
rtx note = emit_note (NULL_PTR, NOTE_INSN_BLOCK_BEG);
rtx note;
int exit_flag = ((flags & 1) != 0);
int block_flag = ((flags & 2) == 0);
note = emit_note (NULL_PTR,
block_flag ? NOTE_INSN_BLOCK_BEG : NOTE_INSN_DELETED);
/* Make an entry on block_stack for the block we are entering. */
@ -3228,7 +3243,7 @@ expand_start_target_temps ()
/* Start a new binding layer that will keep track of all cleanup
actions to be performed. */
expand_start_bindings (0);
expand_start_bindings (2);
target_temp_slot_level = temp_slot_level;
}