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[GOOGLE] Do not partition the cold/hot sections of a function with "section" attribute
- From: Yi Yang <ahyangyi at google dot com>
- To: GCC Patches <gcc-patches at gcc dot gnu dot org>
- Cc: Dehao Chen <dehao at google dot com>
- Date: Wed, 6 Aug 2014 15:36:39 -0700
- Subject: [GOOGLE] Do not partition the cold/hot sections of a function with "section" attribute
- Authentication-results: sourceware.org; auth=none
This currently puts split sections together again in the specified
section and breaks DWARF output. This patch disables the partitioning
for such functions.
--
2014-08-06 Yi Yang <ahyangyi@google.com>
gcc:
* bb-reorder.c (gate_handle_partition_blocks): Add a check for "section"
attribute.
diff --git gcc/bb-reorder.c gcc/bb-reorder.c
index fa6f62f..09449c6 100644
--- gcc/bb-reorder.c
+++ gcc/bb-reorder.c
@@ -2555,6 +2555,7 @@ gate_handle_partition_blocks (void)
we are going to omit the reordering. */
&& optimize_function_for_speed_p (cfun)
&& !DECL_ONE_ONLY (current_function_decl)
+ && !DECL_SECTION_NAME (current_function_decl)
&& !user_defined_section_attribute);
}