[x86, PATCH 1/2] Enabling of the new Intel microarchitecture Silvermont
Zamyatin, Igor
igor.zamyatin@intel.com
Tue May 28 09:14:00 GMT 2013
Hi All!
Several weeks ago Intel announced new microarchitecture named Silvermont (see for example http://newsroom.intel.com/community/intel_newsroom/blog/2013/05/06/intel-launches-low-power-high-performance-silvermont-microarchitecture ).
This patch is the first and it enables Silvermont architecture in the GCC compiler (second patch will add some performance related features).
Bootstrapped and tested on x86_64-unknown-linux-gnu, ok for trunk?
Thanks,
Igor
2013-05-27 Yuri Rumyantsev <yuri.s.rumyantsev@intel.com>
Igor Zamyatin <igor.zamyatin@intel.com>
Silvermont (SLM) architecture pipeline model, tuning and
insn selection.
* config.gcc: Add slm config options and target.
* config/i386/slm.md: New.
* config/i386/driver-i386.c (host_detect_local_cpu): Check movbe.
* gcc/config/i386/i386-c.c (ix86_target_macros_internal): New case
PROCESSOR_SLM.
(ix86_target_macros_internal): Likewise.
* gcc/config/i386/i386.c (slm_cost): New cost.
(m_SLM): New macro flag.
(initial_ix86_tune_features): Set m_SLM.
(x86_accumulate_outgoing_args): Likewise.
(x86_arch_always_fancy_math_387): Likewise.
(processor_target_table): Add slm cost.
(cpu_names): Add slm cpu name.
(x86_option_override_internal): Set SLM ISA.
(ix86_issue_rate): New case PROCESSOR_SLM.
(ia32_multipass_dfa_lookahead): Likewise.
(fold_builtin_cpu): Add slm.
* config/i386/i386.h (TARGET_SLM): New target macro.
(target_cpu_default): Add TARGET_CPU_DEFAULT_slm.
(processor_type): Add PROCESSOR_SLM.
* config/i386/i386.md (cpu): Add new value "slm".
(slm.md): Include slm.md.
* libgcc/config/i386/cpuinfo.c (INTEL_SLM): New enum value.
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