Remove zone allocator.

This patch removes the GC zone allocator.  It is not used and it
produces several regressions in the testsuite.  Furthermore, it
complicates things for the plan to implement manual GC markers
(http://gcc.gnu.org/wiki/cxx-conversion/gc-alternatives#Do_GC_marking_manually).

Tested on x86_64 with standard checking, --enable-checking=gc and
--enable-checking=release.

From-SVN: r195426

1 files changed, 2 insertions, 3 deletions

diff --git a/gcc/rtl.c b/gcc/rtl.c
index 38c46fa..bc49fc8 100644
--- a/gcc/rtl.c
+++ b/gcc/rtl.c
@@ -192,8 +192,7 @@ rtx_size (const_rtx x)
 rtx
 rtx_alloc_stat (RTX_CODE code MEM_STAT_DECL)
 {
-  rtx rt = ggc_alloc_zone_rtx_def_stat (&rtl_zone, RTX_CODE_SIZE (code)
-                                        PASS_MEM_STAT);
+  rtx rt = ggc_alloc_rtx_def_stat (RTX_CODE_SIZE (code) PASS_MEM_STAT);
 
   /* We want to clear everything up to the FLD array.  Normally, this
      is one int, but we don't want to assume that and it isn't very
@@ -329,7 +328,7 @@ rtx
 shallow_copy_rtx_stat (const_rtx orig MEM_STAT_DECL)
 {
   const unsigned int size = rtx_size (orig);
-  rtx const copy = ggc_alloc_zone_rtx_def_stat (&rtl_zone, size PASS_MEM_STAT);
+  rtx const copy = ggc_alloc_rtx_def_stat (size PASS_MEM_STAT);
   return (rtx) memcpy (copy, orig, size);
 }