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(ADJUST_COST): Add definition.

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From-SVN: r1985
This commit is contained in:
Tom Wood 1992-08-28 13:11:06 +00:00
parent 664921b428
commit 5b17704609
1 changed files with 19 additions and 2 deletions
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21
gcc/config/m88k/m88k.h
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@ -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