aboutsummaryrefslogtreecommitdiff
path: root/gcc/config/vax/vax.h
diff options
context:
space:
mode:
authorVladimir Makarov <vmakarov@redhat.com>2011-03-28 01:53:24 +0000
committerVladimir Makarov <vmakarov@gcc.gnu.org>2011-03-28 01:53:24 +0000
commit99710245becabdfa97984d1f68a01f9876124417 (patch)
tree761665b37aeeeb5eb4e3f9b4770772ea49679cc0 /gcc/config/vax/vax.h
parent0854e22029b6d45bc67140bf5d5493ee5c9294ef (diff)
downloadgcc-99710245becabdfa97984d1f68a01f9876124417.zip
gcc-99710245becabdfa97984d1f68a01f9876124417.tar.gz
gcc-99710245becabdfa97984d1f68a01f9876124417.tar.bz2
re PR bootstrap/48307 (Bootstrap failure)
2011-03-27 Vladimir Makarov <vmakarov@redhat.com> PR bootstrap/48307 Revert the previous patch. From-SVN: r171589
Diffstat (limited to 'gcc/config/vax/vax.h')
-rw-r--r--gcc/config/vax/vax.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/config/vax/vax.h b/gcc/config/vax/vax.h
index 15b7daa..272dfbb 100644
--- a/gcc/config/vax/vax.h
+++ b/gcc/config/vax/vax.h
@@ -226,6 +226,15 @@ enum reg_class { NO_REGS, ALL_REGS, LIM_REG_CLASSES };
#define REG_CLASS_NAMES \
{ "NO_REGS", "ALL_REGS" }
+/* The following macro defines cover classes for Integrated Register
+ Allocator. Cover classes is a set of non-intersected register
+ classes covering all hard registers used for register allocation
+ purpose. Any move between two registers of a cover class should be
+ cheaper than load or store of the registers. The macro value is
+ array of register classes with LIM_REG_CLASSES used as the end
+ marker. */
+#define IRA_COVER_CLASSES { ALL_REGS, LIM_REG_CLASSES }
+
/* Return the maximum number of consecutive registers
needed to represent mode MODE in a register of class CLASS. */
#define CLASS_MAX_NREGS(CLASS, MODE) \