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authorvmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4>2011-03-28 01:53:24 +0000
committervmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4>2011-03-28 01:53:24 +0000
commita5af08d26ce1678e462f91bb3fb9336e30d02ca8 (patch)
tree761665b37aeeeb5eb4e3f9b4770772ea49679cc0 /gcc/config/vax
parent24b0a129a158dc3987a676c625817b9b21e9d4e9 (diff)
downloadgcc-a5af08d26ce1678e462f91bb3fb9336e30d02ca8.tar.gz
2011-03-27 Vladimir Makarov <vmakarov@redhat.com>
PR bootstrap/48307 Revert the previous patch. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171589 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/vax')
-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 15b7daa7b7e..272dfbbc342 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) \