On Mon, Jul 6, 2015 at 8:13 AM, Uros Bizjak <ubiz...@gmail.com> wrote: > On Mon, Jul 6, 2015 at 3:28 PM, H.J. Lu <hjl.to...@gmail.com> wrote: >> IA MCU is based on Intel Pentium ISA without x87 and passing parameters >> in registers. We want to optimize for IA MCU without changing existing >> Pentium codegen. This patch adds PROCESSOR_IAMCU for -march=iamcu, >> which is based on -march=pentium with updated cost tables. >> >> OK for trunk? >> >> Thanks. >> >> >> H.J. >> -- >> gcc/ >> >> PR target/66749 >> * config/i386/i386.c (iamcu_cost): New. >> (m_IAMCU): Likewise. >> (initial_ix86_arch_features): Disable X86_ARCH_CMOV for m_IAMCU. >> (processor_target_table): Add an entry for "iamcu". >> (processor_alias_table): Likewise. >> (ix86_issue_rate): Handle PROCESSOR_IAMCU. >> (ix86_adjust_cost): Likewise. >> (ia32_multipass_dfa_lookahead): Likewise. >> * config/i386/i386.h (processor_type): Add PROCESSOR_IAMCU. >> * config/i386/x86-tune.def: Updated for m_IAMCU. >> >> gcc/testsuite/ >> >> PR target/66749 >> * gcc.target/i386/pr66749.c: New test. > > I assume there will be separate patch for configure bits that will set > -march=iamcu for i[34567]86-*-elfiamcu target.
That is correct. > This part is OK. > Thanks. -- H.J.
