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tree-ssa.c (execute_update_address_taken): Handle TARGET_MEM_REF when processing for not_regs_needed bitmap.

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* tree-ssa.c (execute_update_address_taken): Handle TARGET_MEM_REF
        when processing for not_regs_needed bitmap.
        * gimple.c (walk_stmt_load_store_addr_ops): When visiting address,
        handle TARGET_MEM_REF in lhs.  Check TMR_BASE for NULL while
        handling it for rhs.

From-SVN: r147179
This commit is contained in:
Andrey Belevantsev 2009-05-06 18:27:10 +04:00 committed by Andrey Belevantsev
parent 700ae70ccd
commit fff1894cd6
3 changed files with 28 additions and 8 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2009-05-06 Andrey Belevantsev <abel@ispras.ru>
* tree-ssa.c (execute_update_address_taken): Handle TARGET_MEM_REF
when processing for not_regs_needed bitmap.
* gimple.c (walk_stmt_load_store_addr_ops): When visiting address,
handle TARGET_MEM_REF in lhs. Check TMR_BASE for NULL while
handling it for rhs.
2009-05-06 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.md ((unnamed inc/dec peephole): Use

6
gcc/gimple.c
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@ -3232,12 +3232,18 @@ walk_stmt_load_store_addr_ops (gimple stmt, void *data,
if (TREE_CODE (rhs) == ADDR_EXPR)
ret |= visit_addr (stmt, TREE_OPERAND (rhs, 0), data);
else if (TREE_CODE (rhs) == TARGET_MEM_REF
&& TMR_BASE (rhs) != NULL_TREE
&& TREE_CODE (TMR_BASE (rhs)) == ADDR_EXPR)
ret |= visit_addr (stmt, TREE_OPERAND (TMR_BASE (rhs), 0), data);
else if (TREE_CODE (rhs) == OBJ_TYPE_REF
&& TREE_CODE (OBJ_TYPE_REF_OBJECT (rhs)) == ADDR_EXPR)
ret |= visit_addr (stmt, TREE_OPERAND (OBJ_TYPE_REF_OBJECT (rhs),
0), data);
lhs = gimple_assign_lhs (stmt);
if (TREE_CODE (lhs) == TARGET_MEM_REF
&& TMR_BASE (lhs) != NULL_TREE
&& TREE_CODE (TMR_BASE (lhs)) == ADDR_EXPR)
ret |= visit_addr (stmt, TREE_OPERAND (TMR_BASE (lhs), 0), data);
}
if (visit_load)
{

22
gcc/tree-ssa.c
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@ -1518,14 +1518,20 @@ execute_update_addresses_taken (bool do_optimize)
a local decl that requires not to be a gimple register. */
if (code == GIMPLE_ASSIGN || code == GIMPLE_CALL)
{
tree lhs = gimple_get_lhs (stmt);
/* A plain decl does not need it set. */
if (lhs && handled_component_p (lhs))
{
var = get_base_address (lhs);
if (DECL_P (var))
bitmap_set_bit (not_reg_needs, DECL_UID (var));
}
tree lhs = gimple_get_lhs (stmt);
/* We may not rewrite TMR_SYMBOL to SSA. */
if (lhs && TREE_CODE (lhs) == TARGET_MEM_REF
&& TMR_SYMBOL (lhs))
bitmap_set_bit (not_reg_needs, DECL_UID (TMR_SYMBOL (lhs)));
/* A plain decl does not need it set. */
else if (lhs && handled_component_p (lhs))
{
var = get_base_address (lhs);
if (DECL_P (var))
bitmap_set_bit (not_reg_needs, DECL_UID (var));
}
}
}