+2007-04-26 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/31703
+ * tree-ssa-loop-im.c (rewrite_bittest): Make sure to use
+ the right type for the target of the bittest.
+
2007-04-26 Richard Sandiford <richard@codesourcery.com>
* config/i386/vx-common.h (RETURN_IN_MEMORY): Use
+2007-04-26 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/31703
+ * gcc.c-torture/compile/pr31703.c: New testcase.
+ * gcc.dg/tree-ssa/ssa-lim-1.c: Adjust pattern.
+ * gcc.dg/tree-ssa/ssa-lim-2.c: Likewise.
+
2007-04-26 Wolfgang Gellerich <gellerich@de.ibm.com>
* gfortran.dg/open_errors.f90: Added if statements checking
--- /dev/null
+typedef unsigned long long HARD_REG_ELT_TYPE;
+static HARD_REG_ELT_TYPE reload_reg_used_in_output_addr[30];
+int reload_reg_reaches_end_p (unsigned int regno, int opnum)
+{
+ int i;
+ for (i = opnum + 1; i < opnum; i++)
+ if (reload_reg_used_in_output_addr[i]
+ & ((HARD_REG_ELT_TYPE)1 << regno))
+ return 0;
+}
+
static tree
rewrite_bittest (block_stmt_iterator *bsi)
{
- tree stmt, lhs, rhs, var, name, stmt1, stmt2, t;
+ tree stmt, lhs, rhs, var, name, use_stmt, stmt1, stmt2, t;
use_operand_p use;
stmt = bsi_stmt (*bsi);
/* Verify that the single use of lhs is a comparison against zero. */
if (TREE_CODE (lhs) != SSA_NAME
- || !single_imm_use (lhs, &use, &stmt1)
- || TREE_CODE (stmt1) != COND_EXPR)
+ || !single_imm_use (lhs, &use, &use_stmt)
+ || TREE_CODE (use_stmt) != COND_EXPR)
return stmt;
- t = COND_EXPR_COND (stmt1);
+ t = COND_EXPR_COND (use_stmt);
if (TREE_OPERAND (t, 0) != lhs
|| (TREE_CODE (t) != NE_EXPR
&& TREE_CODE (t) != EQ_EXPR)
/* A & (1 << B) */
t = fold_build2 (BIT_AND_EXPR, TREE_TYPE (a), a, name);
- stmt2 = build_gimple_modify_stmt (lhs, t);
+ stmt2 = build_gimple_modify_stmt (var, t);
+ name = make_ssa_name (var, stmt2);
+ GIMPLE_STMT_OPERAND (stmt2, 0) = name;
+ SET_USE (use, name);
bsi_insert_before (bsi, stmt1, BSI_SAME_STMT);
bsi_replace (bsi, stmt2, true);
- SSA_NAME_DEF_STMT (lhs) = stmt2;
return stmt1;
}