From 8b69efd9819f86b973d7a550e987ce455fce6d62 Mon Sep 17 00:00:00 2001 From: liuhongt Date: Mon, 3 Jun 2024 10:38:19 +0800 Subject: Remove one_if_conv for latest Intel processors. The tune is added by PR79390 for SciMark2 on Broadwell. For latest GCC, with and without the -mtune-ctrl=^one_if_conv_insn. GCC will generate the same binary for SciMark2. And for SPEC2017, there's no big impact for SKX/CLX/ICX, and small improvements on SPR and later. gcc/ChangeLog: * config/i386/x86-tune.def (X86_TUNE_ONE_IF_CONV_INSN): Remove latest Intel processors. Co-authored by: Lingling Kong --- gcc/config/i386/x86-tune.def | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'gcc') diff --git a/gcc/config/i386/x86-tune.def b/gcc/config/i386/x86-tune.def index 0fa1484..6651299 100644 --- a/gcc/config/i386/x86-tune.def +++ b/gcc/config/i386/x86-tune.def @@ -346,8 +346,8 @@ DEF_TUNE (X86_TUNE_ADJUST_UNROLL, "adjust_unroll_factor", m_BDVER3 | m_BDVER4) /* X86_TUNE_ONE_IF_CONV_INSNS: Restrict a number of cmov insns in if-converted sequence to one. */ DEF_TUNE (X86_TUNE_ONE_IF_CONV_INSN, "one_if_conv_insn", - m_SILVERMONT | m_INTEL | m_CORE_ALL | m_GOLDMONT | m_GOLDMONT_PLUS - | m_TREMONT | m_CORE_HYBRID | m_CORE_ATOM | m_ZHAOXIN | m_GENERIC) + m_SILVERMONT | m_HASWELL | m_SKYLAKE | m_GOLDMONT | m_GOLDMONT_PLUS + | m_TREMONT | m_ZHAOXIN) /* X86_TUNE_AVOID_MFENCE: Use lock prefixed instructions instead of mfence. */ DEF_TUNE (X86_TUNE_AVOID_MFENCE, "avoid_mfence", -- cgit v1.1