(ADJUST_COST): Add definition.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@1985 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/config/m88k/m88k.h b/gcc/config/m88k/m88k.h
index a1dce5e..c4c3d82 100644 (file)
--- a/gcc/config/m88k/m88k.h
+++ b/gcc/config/m88k/m88k.h
@@ -206,9 +206,9 @@ extern char * reg_names[];
 /* Print subsidiary information on the compiler version in use.
    Redefined in m88kv4.h, and m88kluna.h.  */
 #define VERSION_INFO1  "88open OCS/BCS, "
-#define VERSION_INFO2  "08/05/92"
+#define VERSION_INFO2  "08/28/92"
 #define VERSION_STRING version_string
-#define        TM_SCCS_ID      "@(#)m88k.h     2.2.7.5 08/05/92 13:10:08"
+#define        TM_SCCS_ID      "@(#)m88k.h     2.2.7.6 08/28/92 07:51:00"
 
 /* Run-time compilation parameters selecting different hardware subsets.  */
 
@@ -1552,6 +1552,23 @@ enum reg_class { NO_REGS, AP_REG, XRF_REGS, GENERAL_REGS, AGRF_REGS,
 /* Provide the cost of a branch.  Exact meaning under development.  */
 #define BRANCH_COST (TARGET_88100 ? 1 : 2)
 
+/* A C statement (sans semicolon) to update the integer variable COST
+   based on the relationship between INSN that is dependent on
+   DEP_INSN through the dependence LINK.  The default is to make no
+   adjustment to COST.  On the m88k, ignore the cost of anti- and
+   output-dependencies.  On the m88100, a store can issue two cycles
+   before the value (not the address) has finished computing.  */
+#define ADJUST_COST(INSN,LINK,DEP_INSN,COST)                           \
+  do {                                                                 \
+    if (REG_NOTE_KIND (LINK) != 0)                                     \
+      (COST) = 0; /* Anti or output dependence.  */                    \
+    else if (! TARGET_88100                                            \
+            && recog_memoized (INSN) >= 0                              \
+            && get_attr_type (INSN) == TYPE_STORE                      \
+            && SET_SRC (PATTERN (INSN)) == SET_DEST (PATTERN (DEP_INSN))) \
+      (COST) -= 4; /* 88110 store reservation station.  */             \
+  } while (0)
+
 /* Define this to be nonzero if the character `$' should be allowed
    by default in identifier names.  */
 #define        DOLLARS_IN_IDENTIFIERS  1