94 lines
3.1 KiB
Diff
94 lines
3.1 KiB
Diff
2006-10-18 Jan Hubicka <jh@suse.cz>
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PR middle-end/29299
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* cfgexpand.c (expand_used_vars_for_block): Vars marked used by user
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are used.
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2006-10-15 Jan Hubicka <jh@suse.cz>
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Richard Guenther <rguenther@suse.de>
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PR middle-end/29299
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* cgraphunit.c (cgraph_finalize_compilation_unit): Call
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process_function_and_variable_attributes on all variables, including
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those discovered during cgraph construction phase.
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* gcc.dg/pr29299.c: New testcase.
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--- gcc/cgraphunit.c (revision 117745)
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+++ gcc/cgraphunit.c (revision 117863)
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@@ -1055,6 +1055,7 @@ cgraph_finalize_compilation_unit (void)
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/* Keep track of already processed nodes when called multiple times for
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intermodule optimization. */
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static struct cgraph_node *first_analyzed;
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+ struct cgraph_node *first_processed = first_analyzed;
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static struct cgraph_varpool_node *first_analyzed_var;
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if (errorcount || sorrycount)
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@@ -1077,7 +1078,10 @@ cgraph_finalize_compilation_unit (void)
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}
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timevar_push (TV_CGRAPH);
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- process_function_and_variable_attributes (first_analyzed, first_analyzed_var);
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+ process_function_and_variable_attributes (first_processed,
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+ first_analyzed_var);
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+ first_processed = cgraph_nodes;
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+ first_analyzed_var = cgraph_varpool_nodes;
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cgraph_varpool_analyze_pending_decls ();
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if (cgraph_dump_file)
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{
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@@ -1119,11 +1123,16 @@ cgraph_finalize_compilation_unit (void)
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if (!edge->callee->reachable)
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cgraph_mark_reachable_node (edge->callee);
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+ /* We finalize local static variables during constructing callgraph
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+ edges. Process their attributes too. */
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+ process_function_and_variable_attributes (first_processed,
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+ first_analyzed_var);
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+ first_processed = cgraph_nodes;
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+ first_analyzed_var = cgraph_varpool_nodes;
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cgraph_varpool_analyze_pending_decls ();
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}
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/* Collect entry points to the unit. */
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-
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if (cgraph_dump_file)
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{
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fprintf (cgraph_dump_file, "Unit entry points:");
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@@ -1163,7 +1172,6 @@ cgraph_finalize_compilation_unit (void)
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dump_cgraph (cgraph_dump_file);
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}
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first_analyzed = cgraph_nodes;
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- first_analyzed_var = cgraph_varpool_nodes;
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ggc_collect ();
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timevar_pop (TV_CGRAPH);
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}
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--- gcc/cfgexpand.c (revision 117745)
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+++ gcc/cfgexpand.c (revision 117863)
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@@ -764,7 +764,12 @@ expand_used_vars_for_block (tree block,
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/* Expand all variables at this level. */
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for (t = BLOCK_VARS (block); t ; t = TREE_CHAIN (t))
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- if (TREE_USED (t))
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+ if (TREE_USED (t)
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+ /* Force local static variables to be output when marked by
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+ used attribute. For unit-at-a-time, cgraph code already takes
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+ care of this. */
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+ || (!flag_unit_at_a_time && TREE_STATIC (t)
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+ && DECL_PRESERVE_P (t)))
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expand_one_var (t, toplevel);
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this_sv_num = stack_vars_num;
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--- gcc/testsuite/gcc.dg/pr29299.c (revision 0)
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+++ gcc/testsuite/gcc.dg/pr29299.c (revision 117863)
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@@ -0,0 +1,10 @@
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+/* { dg-do compile } */
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+/* { dg-options "-O" } */
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+
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+static int bof __attribute__((used));
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+int foo()
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+{
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+ static int barbarbarbar __attribute__((used));
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+};
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+
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+/* { dg-final { scan-assembler "barbarbarbar" } } */
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