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authorRichard Henderson <rth@redhat.com>2004-06-07 10:53:03 -0700
committerRichard Henderson <rth@gcc.gnu.org>2004-06-07 10:53:03 -0700
commitf5a76aea0ddbb87fe8b4f64a283951d7e687b84c (patch)
treeae09b8f6224714650658af6382e87de0bae03de0 /gcc/tree-ssa-copyrename.c
parent8cd0b81e9e372e8d7ff510d59e74e1a74616d773 (diff)
downloadgcc-f5a76aea0ddbb87fe8b4f64a283951d7e687b84c.tar.gz
gimple-low.c (struct lower_data): Add the_return_label and one_return_stmt.
* gimple-low.c (struct lower_data): Add the_return_label and one_return_stmt. (lower_function_body): Initialize and use them. (lower_return_expr): New. (lower_stmt): Call it. * gimplify.c (gimplify_return_expr): Force the argument to be either null or a result_decl. * tree-gimple.c: Update gimple grammer to match. * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Deny coalescing of result_decls. testsuite/ * gcc.dg/tree-ssa/20030728-1.c: Fixup return value to not match if temporaries. From-SVN: r82701
Diffstat (limited to 'gcc/tree-ssa-copyrename.c')
-rw-r--r--gcc/tree-ssa-copyrename.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/tree-ssa-copyrename.c b/gcc/tree-ssa-copyrename.c
index dd698835f06..369c02fbd97 100644
--- a/gcc/tree-ssa-copyrename.c
+++ b/gcc/tree-ssa-copyrename.c
@@ -187,6 +187,13 @@ copy_rename_partition_coalesce (var_map map, tree var1, tree var2, FILE *debug)
return;
}
+ if ((TREE_CODE (root1) == RESULT_DECL) != (TREE_CODE (root2) == RESULT_DECL))
+ {
+ if (debug)
+ fprintf (debug, " : One root a RESULT_DECL. No coalesce.\n");
+ return;
+ }
+
gimp1 = is_gimple_tmp_var (root1);
gimp2 = is_gimple_tmp_var (root2);