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authorrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>2009-04-06 14:16:15 +0000
committerrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>2009-04-06 14:16:15 +0000
commit0fefde02a19bf2769eba47faf59dae78dc982b77 (patch)
tree2c6e715b64be648e18f15050199b1eb3b029cfb2 /gcc/tree-ssa-ccp.c
parentf2e803a56c606d86d38cf1c2084e8ecf0042bf28 (diff)
downloadgcc-0fefde02a19bf2769eba47faf59dae78dc982b77.tar.gz
2009-04-06 Richard Guenther <rguenther@suse.de>
PR tree-optimization/39643 * tree-ssa-ccp.c (ccp_fold): Fold REALPART_EXPRs and IMAGPART_EXPRs of complex constants. (execute_fold_all_builtins): If we folded a call queue TODO_update_address_taken. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@145604 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-ccp.c')
-rw-r--r--gcc/tree-ssa-ccp.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c
index 6d8e88e6d33..2f396583b9a 100644
--- a/gcc/tree-ssa-ccp.c
+++ b/gcc/tree-ssa-ccp.c
@@ -949,12 +949,14 @@ ccp_fold (gimple stmt)
if (kind == tcc_reference)
{
- if (TREE_CODE (rhs) == VIEW_CONVERT_EXPR
+ if ((TREE_CODE (rhs) == VIEW_CONVERT_EXPR
+ || TREE_CODE (rhs) == REALPART_EXPR
+ || TREE_CODE (rhs) == IMAGPART_EXPR)
&& TREE_CODE (TREE_OPERAND (rhs, 0)) == SSA_NAME)
{
prop_value_t *val = get_value (TREE_OPERAND (rhs, 0));
if (val->lattice_val == CONSTANT)
- return fold_unary (VIEW_CONVERT_EXPR,
+ return fold_unary (TREE_CODE (rhs),
TREE_TYPE (rhs), val->value);
}
else if (TREE_CODE (rhs) == INDIRECT_REF
@@ -3270,7 +3272,10 @@ execute_fold_all_builtins (void)
push_stmt_changes (gsi_stmt_ptr (&i));
if (!update_call_from_tree (&i, result))
- gimplify_and_update_call_from_tree (&i, result);
+ {
+ gimplify_and_update_call_from_tree (&i, result);
+ todoflags |= TODO_update_address_taken;
+ }
stmt = gsi_stmt (i);
pop_stmt_changes (gsi_stmt_ptr (&i));