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| author | Claudiu Zissulescu <claziss@synopsys.com> | 2018-01-26 12:34:31 +0100 |
|---|---|---|
| committer | Claudiu Zissulescu <claziss@gcc.gnu.org> | 2018-01-26 12:34:31 +0100 |
| commit | 62f2664539efdced7387a13c2e9a6465f5867c0f (patch) | |
| tree | 28cc4ee393b1ed7dea6be60d782dd488828917c9 /gcc/config/arc/arc.c | |
| parent | 20565692f0d31da53aab96fc0a8a4eaab2c2b142 (diff) | |
| download | gcc-62f2664539efdced7387a13c2e9a6465f5867c0f.zip gcc-62f2664539efdced7387a13c2e9a6465f5867c0f.tar.gz gcc-62f2664539efdced7387a13c2e9a6465f5867c0f.tar.bz2 | |
[ARC] Add ARCv2 core3 tune option.
ARCv2 Core3 cpus are comming with dbnz support. Add this feature on
the tune option.
gcc/
2018-01-26 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc-arch.h (arc_tune_attr): Add ARC_TUNE_CORE_3.
* config/arc/arc.c (arc_sched_issue_rate): Use ARC_TUNE_... .
(arc_init): Likewise.
(arc_override_options): Likewise.
(arc_file_start): Choose Tag_ARC_CPU_variation based on arc_tune
value.
(hwloop_fail): Use TARGET_DBNZ when we want to check for dbnz insn
support.
* config/arc/arc.h (TARGET_DBNZ): Define.
* config/arc/arc.md (attr tune): Add core_3, use ARC_TUNE_... to
properly set the tune attribute.
(dbnz): Use TARGET_DBNZ guard.
* config/arc/arc.opt (mtune): Add core3 option.
From-SVN: r257085
Diffstat (limited to 'gcc/config/arc/arc.c')
| -rw-r--r-- | gcc/config/arc/arc.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c index fc18f65..0c98083 100644 --- a/gcc/config/arc/arc.c +++ b/gcc/config/arc/arc.c @@ -848,21 +848,21 @@ arc_init (void) if (arc_multcost < 0) switch (arc_tune) { - case TUNE_ARC700_4_2_STD: + case ARC_TUNE_ARC700_4_2_STD: /* latency 7; max throughput (1 multiply + 4 other insns) / 5 cycles. */ arc_multcost = COSTS_N_INSNS (4); if (TARGET_NOMPY_SET) arc_multcost = COSTS_N_INSNS (30); break; - case TUNE_ARC700_4_2_XMAC: + case ARC_TUNE_ARC700_4_2_XMAC: /* latency 5; max throughput (1 multiply + 2 other insns) / 3 cycles. */ arc_multcost = COSTS_N_INSNS (3); if (TARGET_NOMPY_SET) arc_multcost = COSTS_N_INSNS (30); break; - case TUNE_ARC600: + case ARC_TUNE_ARC600: if (TARGET_MUL64_SET) { arc_multcost = COSTS_N_INSNS (4); @@ -1202,8 +1202,8 @@ arc_override_options (void) #undef ARC_OPT /* Set Tune option. */ - if (arc_tune == TUNE_NONE) - arc_tune = (enum attr_tune) arc_selected_cpu->tune; + if (arc_tune == ARC_TUNE_NONE) + arc_tune = (enum arc_tune_attr) arc_selected_cpu->tune; if (arc_size_opt_level == 3) optimize_size = 1; @@ -5210,6 +5210,9 @@ static void arc_file_start (void) TARGET_NO_SDATA_SET ? 0 : 2); asm_fprintf (asm_out_file, "\t.arc_attribute Tag_ARC_ABI_exceptions, %d\n", TARGET_OPTFPE ? 1 : 0); + if (TARGET_V2) + asm_fprintf (asm_out_file, "\t.arc_attribute Tag_ARC_CPU_variation, %d\n", + arc_tune == ARC_TUNE_CORE_3 ? 3 : 2); } /* Implement `TARGET_ASM_FILE_END'. */ @@ -7388,11 +7391,11 @@ hwloop_fail (hwloop_info loop) rtx test; rtx insn = loop->loop_end; - if (TARGET_V2 + if (TARGET_DBNZ && (loop->length && (loop->length <= ARC_MAX_LOOP_LENGTH)) && REG_P (loop->iter_reg)) { - /* TARGET_V2 has dbnz instructions. */ + /* TARGET_V2 core3 has dbnz instructions. */ test = gen_dbnz (loop->iter_reg, loop->start_label); insn = emit_jump_insn_before (test, loop->loop_end); } |