diff options
Diffstat (limited to 'gcc/config/mips/mips.c')
| -rw-r--r-- | gcc/config/mips/mips.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index d9cdcf5..268c7f4 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -126,6 +126,7 @@ static int iris_section_align_entry_eq PARAMS ((const PTR, const PTR)); static hashval_t iris_section_align_entry_hash PARAMS ((const PTR)); static int iris6_section_align_1 PARAMS ((void **, void *)); #endif +static int mips_adjust_cost PARAMS ((rtx, rtx, rtx, int)); /* Global variables for machine-dependent things. */ @@ -455,6 +456,9 @@ enum reg_class mips_char_to_class[256] = #undef TARGET_ASM_FUNCTION_EPILOGUE #define TARGET_ASM_FUNCTION_EPILOGUE mips_output_function_epilogue +#undef TARGET_SCHED_ADJUST_COST +#define TARGET_SCHED_ADJUST_COST mips_adjust_cost + struct gcc_target targetm = TARGET_INITIALIZER; /* Return truth value of whether OP can be used as an operands @@ -9743,6 +9747,23 @@ mips_parse_cpu (cpu_string) return cpu; } +/* Adjust the cost of INSN 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 MIPS, ignore the cost of anti- and output-dependencies. */ +static int +mips_adjust_cost (insn, link, dep, cost) + rtx insn ATTRIBUTE_UNUSED; + rtx link; + rtx dep ATTRIBUTE_UNUSED; + int cost; +{ + if (REG_NOTE_KIND (link) != 0) + return 0; /* Anti or output dependence. */ + return cost; +} + /* Cover function for UNIQUE_SECTION. */ void @@ -9815,6 +9836,7 @@ mips_unique_section (decl, reloc) DECL_SECTION_NAME (decl) = build_string (len, string); } + #ifdef TARGET_IRIX6 /* Output assembly to switch to section NAME with attribute FLAGS. */ |