Patchwork GTY chain_next annotate gimple_statement_base

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Submitter Richard Guenther
Date Aug. 20, 2012, 9 a.m.
Message ID <alpine.LNX.2.00.1208201059230.28649@zhemvz.fhfr.qr>
Download mbox | patch
Permalink /patch/178714/
State New
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Comments

Richard Guenther - Aug. 20, 2012, 9 a.m.
This creates better marking code (even though we probably tail-recurse
for the exising one).

Bootstrapped and tested on x86-64-unknown-linux-gnu, applied.

Richard.

2012-08-20  Richard Guenther  <rguenther@suse.de>

	* gimple.h (gimple_statement_base): Annotate with GTY chain_next.

Patch

Index: gcc/gimple.h
===================================================================
--- gcc/gimple.h	(revision 190523)
+++ gcc/gimple.h	(working copy)
@@ -151,7 +151,7 @@  typedef struct
 /* Data structure definitions for GIMPLE tuples.  NOTE: word markers
    are for 64 bit hosts.  */
 
-struct GTY(()) gimple_statement_base {
+struct GTY((chain_next ("%h.next"))) gimple_statement_base {
   /* [ WORD 1 ]
      Main identifying code for a tuple.  */
   ENUM_BITFIELD(gimple_code) code : 8;