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tree-parloops.c (separate_decls_in_region_debug_bind): Drop debug stmts setting DEBUG_EXPR_DECLs.

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* tree-parloops.c (separate_decls_in_region_debug_bind): Drop debug
	stmts setting DEBUG_EXPR_DECLs.

	* cfgexpand.c (expand_debug_expr): Ignore zero-length bitfields.
	Don't crash if mode1 is VOIDmode.

From-SVN: r152772
This commit is contained in:
Jakub Jelinek 2009-10-14 19:05:45 +02:00 committed by Jakub Jelinek
parent 1833192f30
commit 4f2a9af862
3 changed files with 18 additions and 1 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2009-10-14 Jakub Jelinek <jakub@redhat.com>
* tree-parloops.c (separate_decls_in_region_debug_bind): Drop debug
stmts setting DEBUG_EXPR_DECLs.
* cfgexpand.c (expand_debug_expr): Ignore zero-length bitfields.
Don't crash if mode1 is VOIDmode.
2009-09-26 Vladimir Makarov <vmakarov@redhat.com>
* params.def (PARAM_IRA_LOOP_RESERVED_REGS): New.

9
gcc/cfgexpand.c
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@ -2524,6 +2524,9 @@ expand_debug_expr (tree exp)
&mode1, &unsignedp, &volatilep, false);
rtx orig_op0;
if (bitsize == 0)
return NULL;
orig_op0 = op0 = expand_debug_expr (tem);
if (!op0)
@ -2561,6 +2564,9 @@ expand_debug_expr (tree exp)
if (MEM_P (op0))
{
if (mode1 == VOIDmode)
/* Bitfield. */
mode1 = smallest_mode_for_size (bitsize, MODE_INT);
if (bitpos >= BITS_PER_UNIT)
{
op0 = adjust_address_nv (op0, mode1, bitpos / BITS_PER_UNIT);
@ -2568,7 +2574,8 @@ expand_debug_expr (tree exp)
}
else if (bitpos < 0)
{
int units = (-bitpos + BITS_PER_UNIT - 1) / BITS_PER_UNIT;
HOST_WIDE_INT units
= (-bitpos + BITS_PER_UNIT - 1) / BITS_PER_UNIT;
op0 = adjust_address_nv (op0, mode1, units);
bitpos += units * BITS_PER_UNIT;
}

2
gcc/tree-parloops.c
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@ -715,6 +715,8 @@ separate_decls_in_region_debug_bind (gimple stmt,
void **slot, **dslot;
var = gimple_debug_bind_get_var (stmt);
if (TREE_CODE (var) == DEBUG_EXPR_DECL)
return true;
gcc_assert (DECL_P (var) && SSA_VAR_P (var));
ielt.uid = DECL_UID (var);
dslot = htab_find_slot_with_hash (decl_copies, &ielt, ielt.uid, NO_INSERT);