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| author | Tom Wood <wood@gnu.org> | 1992-08-28 13:11:06 +0000 |
|---|---|---|
| committer | Tom Wood <wood@gnu.org> | 1992-08-28 13:11:06 +0000 |
| commit | 5b17704609605f4b0f208e9385074bb970c8aa0d (patch) | |
| tree | 8e3cf33ce12c4e29b40372f2acd03d4ade4947fa /gcc | |
| parent | 664921b428a4b0410d06003734d93520fa93fe5b (diff) | |
| download | gcc-5b17704609605f4b0f208e9385074bb970c8aa0d.zip gcc-5b17704609605f4b0f208e9385074bb970c8aa0d.tar.gz gcc-5b17704609605f4b0f208e9385074bb970c8aa0d.tar.bz2 | |
(ADJUST_COST): Add definition.
From-SVN: r1985
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/m88k/m88k.h | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/gcc/config/m88k/m88k.h b/gcc/config/m88k/m88k.h index a1dce5e..c4c3d82 100644 --- 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 |