[2/2] Add m_CORE_ATOM for atom cores
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gcc/ChangeLog:
* config/i386/i386-options.cc (m_CORE_ATOM): New.
* config/i386/x86-tune.def
(X86_TUNE_SCHEDULE): Initial tune for CORE_ATOM.
(X86_TUNE_PARTIAL_REG_DEPENDENCY): Ditto.
(X86_TUNE_SSE_PARTIAL_REG_DEPENDENCY): Ditto.
(X86_TUNE_SSE_PARTIAL_REG_FP_CONVERTS_DEPENDENCY): Ditto.
(X86_TUNE_SSE_PARTIAL_REG_CONVERTS_DEPENDENCY): Ditto.
(X86_TUNE_DEST_FALSE_DEP_FOR_GLC): Ditto.
(X86_TUNE_MEMORY_MISMATCH_STALL): Ditto.
(X86_TUNE_USE_LEAVE): Ditto.
(X86_TUNE_PUSH_MEMORY): Ditto.
(X86_TUNE_USE_INCDEC): Ditto.
(X86_TUNE_INTEGER_DFMODE_MOVES): Ditto.
(X86_TUNE_PREFER_KNOWN_REP_MOVSB_STOSB): Ditto.
(X86_TUNE_MISALIGNED_MOVE_STRING_PRO_EPILOGUES): Ditto.
(X86_TUNE_USE_SAHF): Ditto.
(X86_TUNE_USE_BT): Ditto.
(X86_TUNE_AVOID_FALSE_DEP_FOR_BMI): Ditto.
(X86_TUNE_ONE_IF_CONV_INSN): Ditto.
(X86_TUNE_AVOID_MFENCE): Ditto.
(X86_TUNE_USE_SIMODE_FIOP): Ditto.
(X86_TUNE_EXT_80387_CONSTANTS): Ditto.
(X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL): Ditto.
(X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL): Ditto.
(X86_TUNE_SSE_TYPELESS_STORES): Ditto.
(X86_TUNE_SSE_LOAD0_BY_PXOR): Ditto.
(X86_TUNE_AVOID_4BYTE_PREFIXES): Ditto.
(X86_TUNE_USE_GATHER_2PARTS): Ditto.
(X86_TUNE_USE_GATHER_4PARTS): Ditto.
(X86_TUNE_USE_GATHER): Ditto.
---
gcc/config/i386/i386-options.cc | 1 +
gcc/config/i386/x86-tune.def | 71 +++++++++++++++++++--------------
2 files changed, 41 insertions(+), 31 deletions(-)
Comments
On Mon, Nov 7, 2022 at 2:41 AM Haochen Jiang <haochen.jiang@intel.com> wrote:
>
> gcc/ChangeLog:
>
> * config/i386/i386-options.cc (m_CORE_ATOM): New.
> * config/i386/x86-tune.def
> (X86_TUNE_SCHEDULE): Initial tune for CORE_ATOM.
> (X86_TUNE_PARTIAL_REG_DEPENDENCY): Ditto.
> (X86_TUNE_SSE_PARTIAL_REG_DEPENDENCY): Ditto.
> (X86_TUNE_SSE_PARTIAL_REG_FP_CONVERTS_DEPENDENCY): Ditto.
> (X86_TUNE_SSE_PARTIAL_REG_CONVERTS_DEPENDENCY): Ditto.
> (X86_TUNE_DEST_FALSE_DEP_FOR_GLC): Ditto.
> (X86_TUNE_MEMORY_MISMATCH_STALL): Ditto.
> (X86_TUNE_USE_LEAVE): Ditto.
> (X86_TUNE_PUSH_MEMORY): Ditto.
> (X86_TUNE_USE_INCDEC): Ditto.
> (X86_TUNE_INTEGER_DFMODE_MOVES): Ditto.
> (X86_TUNE_PREFER_KNOWN_REP_MOVSB_STOSB): Ditto.
> (X86_TUNE_MISALIGNED_MOVE_STRING_PRO_EPILOGUES): Ditto.
> (X86_TUNE_USE_SAHF): Ditto.
> (X86_TUNE_USE_BT): Ditto.
> (X86_TUNE_AVOID_FALSE_DEP_FOR_BMI): Ditto.
> (X86_TUNE_ONE_IF_CONV_INSN): Ditto.
> (X86_TUNE_AVOID_MFENCE): Ditto.
> (X86_TUNE_USE_SIMODE_FIOP): Ditto.
> (X86_TUNE_EXT_80387_CONSTANTS): Ditto.
> (X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL): Ditto.
> (X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL): Ditto.
> (X86_TUNE_SSE_TYPELESS_STORES): Ditto.
> (X86_TUNE_SSE_LOAD0_BY_PXOR): Ditto.
> (X86_TUNE_AVOID_4BYTE_PREFIXES): Ditto.
> (X86_TUNE_USE_GATHER_2PARTS): Ditto.
> (X86_TUNE_USE_GATHER_4PARTS): Ditto.
> (X86_TUNE_USE_GATHER): Ditto.
OK.
Thanks,
Uros.
> ---
> gcc/config/i386/i386-options.cc | 1 +
> gcc/config/i386/x86-tune.def | 71 +++++++++++++++++++--------------
> 2 files changed, 41 insertions(+), 31 deletions(-)
>
> diff --git a/gcc/config/i386/i386-options.cc b/gcc/config/i386/i386-options.cc
> index 23ab1f867d0..e5c77f3a84d 100644
> --- a/gcc/config/i386/i386-options.cc
> +++ b/gcc/config/i386/i386-options.cc
> @@ -139,6 +139,7 @@ along with GCC; see the file COPYING3. If not see
> #define m_TREMONT (HOST_WIDE_INT_1U<<PROCESSOR_TREMONT)
> #define m_SIERRAFOREST (HOST_WIDE_INT_1U<<PROCESSOR_SIERRAFOREST)
> #define m_GRANDRIDGE (HOST_WIDE_INT_1U<<PROCESSOR_GRANDRIDGE)
> +#define m_CORE_ATOM (m_SIERRAFOREST | m_GRANDRIDGE)
> #define m_INTEL (HOST_WIDE_INT_1U<<PROCESSOR_INTEL)
>
> #define m_LUJIAZUI (HOST_WIDE_INT_1U<<PROCESSOR_LUJIAZUI)
> diff --git a/gcc/config/i386/x86-tune.def b/gcc/config/i386/x86-tune.def
> index 540e45d02f9..58e29e7806a 100644
> --- a/gcc/config/i386/x86-tune.def
> +++ b/gcc/config/i386/x86-tune.def
> @@ -42,7 +42,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
> DEF_TUNE (X86_TUNE_SCHEDULE, "schedule",
> m_PENT | m_LAKEMONT | m_PPRO | m_CORE_ALL | m_BONNELL | m_SILVERMONT
> | m_INTEL | m_KNL | m_KNM | m_K6_GEODE | m_AMD_MULTIPLE | m_LUJIAZUI
> - | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_GENERIC)
> + | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM
> + | m_GENERIC)
>
> /* X86_TUNE_PARTIAL_REG_DEPENDENCY: Enable more register renaming
> on modern chips. Prefer stores affecting whole integer register
> @@ -52,7 +53,7 @@ DEF_TUNE (X86_TUNE_PARTIAL_REG_DEPENDENCY, "partial_reg_dependency",
> m_P4_NOCONA | m_CORE2 | m_NEHALEM | m_SANDYBRIDGE | m_CORE_AVX2
> | m_BONNELL | m_SILVERMONT | m_GOLDMONT | m_GOLDMONT_PLUS | m_INTEL
> | m_KNL | m_KNM | m_AMD_MULTIPLE | m_LUJIAZUI | m_TREMONT
> - | m_ALDERLAKE | m_GENERIC)
> + | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
>
> /* X86_TUNE_SSE_PARTIAL_REG_DEPENDENCY: This knob promotes all store
> destinations to be 128bit to allow register renaming on 128bit SSE units,
> @@ -63,7 +64,7 @@ DEF_TUNE (X86_TUNE_PARTIAL_REG_DEPENDENCY, "partial_reg_dependency",
> DEF_TUNE (X86_TUNE_SSE_PARTIAL_REG_DEPENDENCY, "sse_partial_reg_dependency",
> m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_AMDFAM10
> | m_BDVER | m_ZNVER | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE
> - | m_GENERIC)
> + | m_CORE_ATOM | m_GENERIC)
>
> /* X86_TUNE_SSE_PARTIAL_REG_FP_CONVERTS_DEPENDENCY: This knob avoids
> partial write to the destination in scalar SSE conversion from FP
> @@ -71,20 +72,23 @@ DEF_TUNE (X86_TUNE_SSE_PARTIAL_REG_DEPENDENCY, "sse_partial_reg_dependency",
> DEF_TUNE (X86_TUNE_SSE_PARTIAL_REG_FP_CONVERTS_DEPENDENCY,
> "sse_partial_reg_fp_converts_dependency",
> m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_AMDFAM10
> - | m_BDVER | m_ZNVER | m_LUJIAZUI | m_ALDERLAKE | m_GENERIC)
> + | m_BDVER | m_ZNVER | m_LUJIAZUI | m_ALDERLAKE | m_CORE_ATOM
> + | m_GENERIC)
>
> /* X86_TUNE_SSE_PARTIAL_REG_CONVERTS_DEPENDENCY: This knob avoids partial
> write to the destination in scalar SSE conversion from integer to FP. */
> DEF_TUNE (X86_TUNE_SSE_PARTIAL_REG_CONVERTS_DEPENDENCY,
> "sse_partial_reg_converts_dependency",
> m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_AMDFAM10
> - | m_BDVER | m_ZNVER | m_LUJIAZUI | m_ALDERLAKE | m_GENERIC)
> + | m_BDVER | m_ZNVER | m_LUJIAZUI | m_ALDERLAKE | m_CORE_ATOM
> + | m_GENERIC)
>
> /* X86_TUNE_DEST_FALSE_DEP_FOR_GLC: This knob inserts zero-idiom before
> several insns to break false dependency on the dest register for GLC
> micro-architecture. */
> DEF_TUNE (X86_TUNE_DEST_FALSE_DEP_FOR_GLC,
> - "dest_false_dep_for_glc", m_SAPPHIRERAPIDS | m_ALDERLAKE)
> + "dest_false_dep_for_glc", m_SAPPHIRERAPIDS | m_ALDERLAKE
> + | m_CORE_ATOM)
>
> /* X86_TUNE_SSE_SPLIT_REGS: Set for machines where the type and dependencies
> are resolved on SSE register parts instead of whole registers, so we may
> @@ -110,14 +114,14 @@ DEF_TUNE (X86_TUNE_MOVX, "movx",
> m_PPRO | m_P4_NOCONA | m_CORE2 | m_NEHALEM | m_SANDYBRIDGE
> | m_BONNELL | m_SILVERMONT | m_GOLDMONT | m_KNL | m_KNM | m_INTEL
> | m_GOLDMONT_PLUS | m_GEODE | m_AMD_MULTIPLE | m_LUJIAZUI
> - | m_CORE_AVX2 | m_TREMONT | m_ALDERLAKE | m_GENERIC)
> + | m_CORE_AVX2 | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
>
> /* X86_TUNE_MEMORY_MISMATCH_STALL: Avoid partial stores that are followed by
> full sized loads. */
> DEF_TUNE (X86_TUNE_MEMORY_MISMATCH_STALL, "memory_mismatch_stall",
> m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_SILVERMONT | m_INTEL
> | m_KNL | m_KNM | m_GOLDMONT | m_GOLDMONT_PLUS | m_AMD_MULTIPLE
> - | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE | m_GENERIC)
> + | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
>
> /* X86_TUNE_FUSE_CMP_AND_BRANCH_32: Fuse compare with a subsequent
> conditional jump instruction for 32 bit TARGET. */
> @@ -173,14 +177,14 @@ DEF_TUNE (X86_TUNE_EPILOGUE_USING_MOVE, "epilogue_using_move",
> /* X86_TUNE_USE_LEAVE: Use "leave" instruction in epilogues where it fits. */
> DEF_TUNE (X86_TUNE_USE_LEAVE, "use_leave",
> m_386 | m_CORE_ALL | m_K6_GEODE | m_AMD_MULTIPLE | m_LUJIAZUI
> - | m_TREMONT | m_ALDERLAKE | m_GENERIC)
> + | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
>
> /* X86_TUNE_PUSH_MEMORY: Enable generation of "push mem" instructions.
> Some chips, like 486 and Pentium works faster with separate load
> and push instructions. */
> DEF_TUNE (X86_TUNE_PUSH_MEMORY, "push_memory",
> m_386 | m_P4_NOCONA | m_CORE_ALL | m_K6_GEODE | m_AMD_MULTIPLE
> - | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE | m_GENERIC)
> + | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
>
> /* X86_TUNE_SINGLE_PUSH: Enable if single push insn is preferred
> over esp subtraction. */
> @@ -250,15 +254,16 @@ DEF_TUNE (X86_TUNE_READ_MODIFY, "read_modify", ~(m_PENT | m_LAKEMONT | m_PPRO))
> DEF_TUNE (X86_TUNE_USE_INCDEC, "use_incdec",
> ~(m_P4_NOCONA | m_CORE2 | m_NEHALEM | m_SANDYBRIDGE
> | m_BONNELL | m_SILVERMONT | m_INTEL | m_KNL | m_KNM | m_GOLDMONT
> - | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_LUJIAZUI
> - | m_GENERIC))
> + | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM
> + | m_LUJIAZUI | m_GENERIC))
>
> /* X86_TUNE_INTEGER_DFMODE_MOVES: Enable if integer moves are preferred
> for DFmode copies */
> DEF_TUNE (X86_TUNE_INTEGER_DFMODE_MOVES, "integer_dfmode_moves",
> ~(m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_SILVERMONT
> | m_KNL | m_KNM | m_INTEL | m_GEODE | m_AMD_MULTIPLE | m_LUJIAZUI
> - | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_GENERIC))
> + | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE
> + | m_CORE_ATOM | m_GENERIC))
>
> /* X86_TUNE_OPT_AGU: Optimize for Address Generation Unit. This flag
> will impact LEA instruction selection. */
> @@ -296,7 +301,8 @@ DEF_TUNE (X86_TUNE_SINGLE_STRINGOP, "single_stringop", m_386 | m_P4_NOCONA)
> move/set sequences of bytes with known size. */
> DEF_TUNE (X86_TUNE_PREFER_KNOWN_REP_MOVSB_STOSB,
> "prefer_known_rep_movsb_stosb",
> - m_SKYLAKE | m_ALDERLAKE | m_TREMONT | m_CORE_AVX512 | m_LUJIAZUI)
> + m_SKYLAKE | m_ALDERLAKE | m_CORE_ATOM | m_TREMONT | m_CORE_AVX512
> + | m_LUJIAZUI)
>
> /* X86_TUNE_MISALIGNED_MOVE_STRING_PRO_EPILOGUES: Enable generation of
> compact prologues and epilogues by issuing a misaligned moves. This
> @@ -306,14 +312,14 @@ DEF_TUNE (X86_TUNE_PREFER_KNOWN_REP_MOVSB_STOSB,
> DEF_TUNE (X86_TUNE_MISALIGNED_MOVE_STRING_PRO_EPILOGUES,
> "misaligned_move_string_pro_epilogues",
> m_386 | m_486 | m_CORE_ALL | m_AMD_MULTIPLE | m_LUJIAZUI | m_TREMONT
> - | m_ALDERLAKE | m_GENERIC)
> + | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
>
> /* X86_TUNE_USE_SAHF: Controls use of SAHF. */
> DEF_TUNE (X86_TUNE_USE_SAHF, "use_sahf",
> m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_SILVERMONT
> | m_KNL | m_KNM | m_INTEL | m_K6_GEODE | m_K8 | m_AMDFAM10 | m_BDVER
> | m_BTVER | m_ZNVER | m_LUJIAZUI | m_GOLDMONT | m_GOLDMONT_PLUS
> - | m_TREMONT | m_ALDERLAKE | m_GENERIC)
> + | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
>
> /* X86_TUNE_USE_CLTD: Controls use of CLTD and CTQO instructions. */
> DEF_TUNE (X86_TUNE_USE_CLTD, "use_cltd",
> @@ -324,13 +330,13 @@ DEF_TUNE (X86_TUNE_USE_CLTD, "use_cltd",
> DEF_TUNE (X86_TUNE_USE_BT, "use_bt",
> m_CORE_ALL | m_BONNELL | m_SILVERMONT | m_KNL | m_KNM | m_INTEL
> | m_LAKEMONT | m_AMD_MULTIPLE | m_LUJIAZUI | m_GOLDMONT
> - | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_GENERIC)
> + | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
>
> /* X86_TUNE_AVOID_FALSE_DEP_FOR_BMI: Avoid false dependency
> for bit-manipulation instructions. */
> DEF_TUNE (X86_TUNE_AVOID_FALSE_DEP_FOR_BMI, "avoid_false_dep_for_bmi",
> - m_SANDYBRIDGE | m_CORE_AVX2 | m_TREMONT | m_ALDERLAKE | m_LUJIAZUI
> - | m_GENERIC)
> + m_SANDYBRIDGE | m_CORE_AVX2 | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM
> + | m_LUJIAZUI | m_GENERIC)
>
> /* X86_TUNE_ADJUST_UNROLL: This enables adjusting the unroll factor based
> on hardware capabilities. Bdver3 hardware has a loop buffer which makes
> @@ -342,12 +348,13 @@ DEF_TUNE (X86_TUNE_ADJUST_UNROLL, "adjust_unroll_factor", m_BDVER3 | m_BDVER4)
> if-converted sequence to one. */
> DEF_TUNE (X86_TUNE_ONE_IF_CONV_INSN, "one_if_conv_insn",
> m_SILVERMONT | m_KNL | m_KNM | m_INTEL | m_CORE_ALL | m_GOLDMONT
> - | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_LUJIAZUI | m_GENERIC)
> + | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_LUJIAZUI
> + | m_GENERIC)
>
> /* X86_TUNE_AVOID_MFENCE: Use lock prefixed instructions instead of mfence. */
> DEF_TUNE (X86_TUNE_AVOID_MFENCE, "avoid_mfence",
> m_CORE_ALL | m_BDVER | m_ZNVER | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE
> - | m_GENERIC)
> + | m_CORE_ATOM | m_GENERIC)
>
> /* X86_TUNE_EXPAND_ABS: This enables a new abs pattern by
> generating instructions for abs (x) = (((signed) x >> (W-1) ^ x) -
> @@ -372,7 +379,7 @@ DEF_TUNE (X86_TUNE_USE_SIMODE_FIOP, "use_simode_fiop",
> ~(m_PENT | m_LAKEMONT | m_PPRO | m_CORE_ALL | m_BONNELL
> | m_SILVERMONT | m_KNL | m_KNM | m_INTEL | m_AMD_MULTIPLE
> | m_LUJIAZUI | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT
> - | m_ALDERLAKE | m_GENERIC))
> + | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC))
>
> /* X86_TUNE_USE_FFREEP: Use freep instruction instead of fstp. */
> DEF_TUNE (X86_TUNE_USE_FFREEP, "use_ffreep", m_AMD_MULTIPLE | m_LUJIAZUI)
> @@ -381,7 +388,8 @@ DEF_TUNE (X86_TUNE_USE_FFREEP, "use_ffreep", m_AMD_MULTIPLE | m_LUJIAZUI)
> DEF_TUNE (X86_TUNE_EXT_80387_CONSTANTS, "ext_80387_constants",
> m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_SILVERMONT
> | m_KNL | m_KNM | m_INTEL | m_K6_GEODE | m_ATHLON_K8 | m_LUJIAZUI
> - | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_GENERIC)
> + | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM
> + | m_GENERIC)
>
> /*****************************************************************************/
> /* SSE instruction selection tuning */
> @@ -397,14 +405,15 @@ DEF_TUNE (X86_TUNE_GENERAL_REGS_SSE_SPILL, "general_regs_sse_spill",
> DEF_TUNE (X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL, "sse_unaligned_load_optimal",
> m_NEHALEM | m_SANDYBRIDGE | m_CORE_AVX2 | m_SILVERMONT | m_KNL | m_KNM
> | m_INTEL | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE
> - | m_AMDFAM10 | m_BDVER | m_BTVER | m_ZNVER | m_LUJIAZUI | m_GENERIC)
> + | m_CORE_ATOM | m_AMDFAM10 | m_BDVER | m_BTVER | m_ZNVER | m_LUJIAZUI
> + | m_GENERIC)
>
> /* X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL: Use movups for misaligned stores
> instead of a sequence loading registers by parts. */
> DEF_TUNE (X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL, "sse_unaligned_store_optimal",
> m_NEHALEM | m_SANDYBRIDGE | m_CORE_AVX2 | m_SILVERMONT | m_KNL | m_KNM
> | m_INTEL | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE
> - | m_BDVER | m_ZNVER | m_LUJIAZUI | m_GENERIC)
> + | m_CORE_ATOM | m_BDVER | m_ZNVER | m_LUJIAZUI | m_GENERIC)
>
> /* X86_TUNE_SSE_PACKED_SINGLE_INSN_OPTIMAL: Use packed single
> precision 128bit instructions instead of double where possible. */
> @@ -414,13 +423,13 @@ DEF_TUNE (X86_TUNE_SSE_PACKED_SINGLE_INSN_OPTIMAL, "sse_packed_single_insn_optim
> /* X86_TUNE_SSE_TYPELESS_STORES: Always movaps/movups for 128bit stores. */
> DEF_TUNE (X86_TUNE_SSE_TYPELESS_STORES, "sse_typeless_stores",
> m_AMD_MULTIPLE | m_LUJIAZUI | m_CORE_ALL | m_TREMONT | m_ALDERLAKE
> - | m_GENERIC)
> + | m_CORE_ATOM | m_GENERIC)
>
> /* X86_TUNE_SSE_LOAD0_BY_PXOR: Always use pxor to load0 as opposed to
> xorps/xorpd and other variants. */
> DEF_TUNE (X86_TUNE_SSE_LOAD0_BY_PXOR, "sse_load0_by_pxor",
> m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BDVER | m_BTVER | m_ZNVER
> - | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE | m_GENERIC)
> + | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
>
> /* X86_TUNE_INTER_UNIT_MOVES_TO_VEC: Enable moves in from integer
> to SSE registers. If disabled, the moves will be done by storing
> @@ -467,22 +476,22 @@ DEF_TUNE (X86_TUNE_SLOW_PSHUFB, "slow_pshufb",
> /* X86_TUNE_AVOID_4BYTE_PREFIXES: Avoid instructions requiring 4+ bytes of prefixes. */
> DEF_TUNE (X86_TUNE_AVOID_4BYTE_PREFIXES, "avoid_4byte_prefixes",
> m_SILVERMONT | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE
> - | m_INTEL)
> + | m_CORE_ATOM | m_INTEL)
>
> /* X86_TUNE_USE_GATHER_2PARTS: Use gather instructions for vectors with 2
> elements. */
> DEF_TUNE (X86_TUNE_USE_GATHER_2PARTS, "use_gather_2parts",
> - ~(m_ZNVER1 | m_ZNVER2 | m_ZNVER3 | m_ALDERLAKE | m_GENERIC))
> + ~(m_ZNVER1 | m_ZNVER2 | m_ZNVER3 | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC))
>
> /* X86_TUNE_USE_GATHER_4PARTS: Use gather instructions for vectors with 4
> elements. */
> DEF_TUNE (X86_TUNE_USE_GATHER_4PARTS, "use_gather_4parts",
> - ~(m_ZNVER1 | m_ZNVER2 | m_ZNVER3 | m_ALDERLAKE | m_GENERIC))
> + ~(m_ZNVER1 | m_ZNVER2 | m_ZNVER3 | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC))
>
> /* X86_TUNE_USE_GATHER: Use gather instructions for vectors with 8 or more
> elements. */
> DEF_TUNE (X86_TUNE_USE_GATHER, "use_gather",
> - ~(m_ZNVER1 | m_ZNVER2 | m_ALDERLAKE | m_GENERIC))
> + ~(m_ZNVER1 | m_ZNVER2 | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC))
>
> /* X86_TUNE_AVOID_128FMA_CHAINS: Avoid creating loops with tight 128bit or
> smaller FMA chain. */
> --
> 2.18.1
>
@@ -139,6 +139,7 @@ along with GCC; see the file COPYING3. If not see
#define m_TREMONT (HOST_WIDE_INT_1U<<PROCESSOR_TREMONT)
#define m_SIERRAFOREST (HOST_WIDE_INT_1U<<PROCESSOR_SIERRAFOREST)
#define m_GRANDRIDGE (HOST_WIDE_INT_1U<<PROCESSOR_GRANDRIDGE)
+#define m_CORE_ATOM (m_SIERRAFOREST | m_GRANDRIDGE)
#define m_INTEL (HOST_WIDE_INT_1U<<PROCESSOR_INTEL)
#define m_LUJIAZUI (HOST_WIDE_INT_1U<<PROCESSOR_LUJIAZUI)
@@ -42,7 +42,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
DEF_TUNE (X86_TUNE_SCHEDULE, "schedule",
m_PENT | m_LAKEMONT | m_PPRO | m_CORE_ALL | m_BONNELL | m_SILVERMONT
| m_INTEL | m_KNL | m_KNM | m_K6_GEODE | m_AMD_MULTIPLE | m_LUJIAZUI
- | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_GENERIC)
+ | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM
+ | m_GENERIC)
/* X86_TUNE_PARTIAL_REG_DEPENDENCY: Enable more register renaming
on modern chips. Prefer stores affecting whole integer register
@@ -52,7 +53,7 @@ DEF_TUNE (X86_TUNE_PARTIAL_REG_DEPENDENCY, "partial_reg_dependency",
m_P4_NOCONA | m_CORE2 | m_NEHALEM | m_SANDYBRIDGE | m_CORE_AVX2
| m_BONNELL | m_SILVERMONT | m_GOLDMONT | m_GOLDMONT_PLUS | m_INTEL
| m_KNL | m_KNM | m_AMD_MULTIPLE | m_LUJIAZUI | m_TREMONT
- | m_ALDERLAKE | m_GENERIC)
+ | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
/* X86_TUNE_SSE_PARTIAL_REG_DEPENDENCY: This knob promotes all store
destinations to be 128bit to allow register renaming on 128bit SSE units,
@@ -63,7 +64,7 @@ DEF_TUNE (X86_TUNE_PARTIAL_REG_DEPENDENCY, "partial_reg_dependency",
DEF_TUNE (X86_TUNE_SSE_PARTIAL_REG_DEPENDENCY, "sse_partial_reg_dependency",
m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_AMDFAM10
| m_BDVER | m_ZNVER | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE
- | m_GENERIC)
+ | m_CORE_ATOM | m_GENERIC)
/* X86_TUNE_SSE_PARTIAL_REG_FP_CONVERTS_DEPENDENCY: This knob avoids
partial write to the destination in scalar SSE conversion from FP
@@ -71,20 +72,23 @@ DEF_TUNE (X86_TUNE_SSE_PARTIAL_REG_DEPENDENCY, "sse_partial_reg_dependency",
DEF_TUNE (X86_TUNE_SSE_PARTIAL_REG_FP_CONVERTS_DEPENDENCY,
"sse_partial_reg_fp_converts_dependency",
m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_AMDFAM10
- | m_BDVER | m_ZNVER | m_LUJIAZUI | m_ALDERLAKE | m_GENERIC)
+ | m_BDVER | m_ZNVER | m_LUJIAZUI | m_ALDERLAKE | m_CORE_ATOM
+ | m_GENERIC)
/* X86_TUNE_SSE_PARTIAL_REG_CONVERTS_DEPENDENCY: This knob avoids partial
write to the destination in scalar SSE conversion from integer to FP. */
DEF_TUNE (X86_TUNE_SSE_PARTIAL_REG_CONVERTS_DEPENDENCY,
"sse_partial_reg_converts_dependency",
m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_AMDFAM10
- | m_BDVER | m_ZNVER | m_LUJIAZUI | m_ALDERLAKE | m_GENERIC)
+ | m_BDVER | m_ZNVER | m_LUJIAZUI | m_ALDERLAKE | m_CORE_ATOM
+ | m_GENERIC)
/* X86_TUNE_DEST_FALSE_DEP_FOR_GLC: This knob inserts zero-idiom before
several insns to break false dependency on the dest register for GLC
micro-architecture. */
DEF_TUNE (X86_TUNE_DEST_FALSE_DEP_FOR_GLC,
- "dest_false_dep_for_glc", m_SAPPHIRERAPIDS | m_ALDERLAKE)
+ "dest_false_dep_for_glc", m_SAPPHIRERAPIDS | m_ALDERLAKE
+ | m_CORE_ATOM)
/* X86_TUNE_SSE_SPLIT_REGS: Set for machines where the type and dependencies
are resolved on SSE register parts instead of whole registers, so we may
@@ -110,14 +114,14 @@ DEF_TUNE (X86_TUNE_MOVX, "movx",
m_PPRO | m_P4_NOCONA | m_CORE2 | m_NEHALEM | m_SANDYBRIDGE
| m_BONNELL | m_SILVERMONT | m_GOLDMONT | m_KNL | m_KNM | m_INTEL
| m_GOLDMONT_PLUS | m_GEODE | m_AMD_MULTIPLE | m_LUJIAZUI
- | m_CORE_AVX2 | m_TREMONT | m_ALDERLAKE | m_GENERIC)
+ | m_CORE_AVX2 | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
/* X86_TUNE_MEMORY_MISMATCH_STALL: Avoid partial stores that are followed by
full sized loads. */
DEF_TUNE (X86_TUNE_MEMORY_MISMATCH_STALL, "memory_mismatch_stall",
m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_SILVERMONT | m_INTEL
| m_KNL | m_KNM | m_GOLDMONT | m_GOLDMONT_PLUS | m_AMD_MULTIPLE
- | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE | m_GENERIC)
+ | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
/* X86_TUNE_FUSE_CMP_AND_BRANCH_32: Fuse compare with a subsequent
conditional jump instruction for 32 bit TARGET. */
@@ -173,14 +177,14 @@ DEF_TUNE (X86_TUNE_EPILOGUE_USING_MOVE, "epilogue_using_move",
/* X86_TUNE_USE_LEAVE: Use "leave" instruction in epilogues where it fits. */
DEF_TUNE (X86_TUNE_USE_LEAVE, "use_leave",
m_386 | m_CORE_ALL | m_K6_GEODE | m_AMD_MULTIPLE | m_LUJIAZUI
- | m_TREMONT | m_ALDERLAKE | m_GENERIC)
+ | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
/* X86_TUNE_PUSH_MEMORY: Enable generation of "push mem" instructions.
Some chips, like 486 and Pentium works faster with separate load
and push instructions. */
DEF_TUNE (X86_TUNE_PUSH_MEMORY, "push_memory",
m_386 | m_P4_NOCONA | m_CORE_ALL | m_K6_GEODE | m_AMD_MULTIPLE
- | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE | m_GENERIC)
+ | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
/* X86_TUNE_SINGLE_PUSH: Enable if single push insn is preferred
over esp subtraction. */
@@ -250,15 +254,16 @@ DEF_TUNE (X86_TUNE_READ_MODIFY, "read_modify", ~(m_PENT | m_LAKEMONT | m_PPRO))
DEF_TUNE (X86_TUNE_USE_INCDEC, "use_incdec",
~(m_P4_NOCONA | m_CORE2 | m_NEHALEM | m_SANDYBRIDGE
| m_BONNELL | m_SILVERMONT | m_INTEL | m_KNL | m_KNM | m_GOLDMONT
- | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_LUJIAZUI
- | m_GENERIC))
+ | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM
+ | m_LUJIAZUI | m_GENERIC))
/* X86_TUNE_INTEGER_DFMODE_MOVES: Enable if integer moves are preferred
for DFmode copies */
DEF_TUNE (X86_TUNE_INTEGER_DFMODE_MOVES, "integer_dfmode_moves",
~(m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_SILVERMONT
| m_KNL | m_KNM | m_INTEL | m_GEODE | m_AMD_MULTIPLE | m_LUJIAZUI
- | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_GENERIC))
+ | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE
+ | m_CORE_ATOM | m_GENERIC))
/* X86_TUNE_OPT_AGU: Optimize for Address Generation Unit. This flag
will impact LEA instruction selection. */
@@ -296,7 +301,8 @@ DEF_TUNE (X86_TUNE_SINGLE_STRINGOP, "single_stringop", m_386 | m_P4_NOCONA)
move/set sequences of bytes with known size. */
DEF_TUNE (X86_TUNE_PREFER_KNOWN_REP_MOVSB_STOSB,
"prefer_known_rep_movsb_stosb",
- m_SKYLAKE | m_ALDERLAKE | m_TREMONT | m_CORE_AVX512 | m_LUJIAZUI)
+ m_SKYLAKE | m_ALDERLAKE | m_CORE_ATOM | m_TREMONT | m_CORE_AVX512
+ | m_LUJIAZUI)
/* X86_TUNE_MISALIGNED_MOVE_STRING_PRO_EPILOGUES: Enable generation of
compact prologues and epilogues by issuing a misaligned moves. This
@@ -306,14 +312,14 @@ DEF_TUNE (X86_TUNE_PREFER_KNOWN_REP_MOVSB_STOSB,
DEF_TUNE (X86_TUNE_MISALIGNED_MOVE_STRING_PRO_EPILOGUES,
"misaligned_move_string_pro_epilogues",
m_386 | m_486 | m_CORE_ALL | m_AMD_MULTIPLE | m_LUJIAZUI | m_TREMONT
- | m_ALDERLAKE | m_GENERIC)
+ | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
/* X86_TUNE_USE_SAHF: Controls use of SAHF. */
DEF_TUNE (X86_TUNE_USE_SAHF, "use_sahf",
m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_SILVERMONT
| m_KNL | m_KNM | m_INTEL | m_K6_GEODE | m_K8 | m_AMDFAM10 | m_BDVER
| m_BTVER | m_ZNVER | m_LUJIAZUI | m_GOLDMONT | m_GOLDMONT_PLUS
- | m_TREMONT | m_ALDERLAKE | m_GENERIC)
+ | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
/* X86_TUNE_USE_CLTD: Controls use of CLTD and CTQO instructions. */
DEF_TUNE (X86_TUNE_USE_CLTD, "use_cltd",
@@ -324,13 +330,13 @@ DEF_TUNE (X86_TUNE_USE_CLTD, "use_cltd",
DEF_TUNE (X86_TUNE_USE_BT, "use_bt",
m_CORE_ALL | m_BONNELL | m_SILVERMONT | m_KNL | m_KNM | m_INTEL
| m_LAKEMONT | m_AMD_MULTIPLE | m_LUJIAZUI | m_GOLDMONT
- | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_GENERIC)
+ | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
/* X86_TUNE_AVOID_FALSE_DEP_FOR_BMI: Avoid false dependency
for bit-manipulation instructions. */
DEF_TUNE (X86_TUNE_AVOID_FALSE_DEP_FOR_BMI, "avoid_false_dep_for_bmi",
- m_SANDYBRIDGE | m_CORE_AVX2 | m_TREMONT | m_ALDERLAKE | m_LUJIAZUI
- | m_GENERIC)
+ m_SANDYBRIDGE | m_CORE_AVX2 | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM
+ | m_LUJIAZUI | m_GENERIC)
/* X86_TUNE_ADJUST_UNROLL: This enables adjusting the unroll factor based
on hardware capabilities. Bdver3 hardware has a loop buffer which makes
@@ -342,12 +348,13 @@ DEF_TUNE (X86_TUNE_ADJUST_UNROLL, "adjust_unroll_factor", m_BDVER3 | m_BDVER4)
if-converted sequence to one. */
DEF_TUNE (X86_TUNE_ONE_IF_CONV_INSN, "one_if_conv_insn",
m_SILVERMONT | m_KNL | m_KNM | m_INTEL | m_CORE_ALL | m_GOLDMONT
- | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_LUJIAZUI | m_GENERIC)
+ | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_LUJIAZUI
+ | m_GENERIC)
/* X86_TUNE_AVOID_MFENCE: Use lock prefixed instructions instead of mfence. */
DEF_TUNE (X86_TUNE_AVOID_MFENCE, "avoid_mfence",
m_CORE_ALL | m_BDVER | m_ZNVER | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE
- | m_GENERIC)
+ | m_CORE_ATOM | m_GENERIC)
/* X86_TUNE_EXPAND_ABS: This enables a new abs pattern by
generating instructions for abs (x) = (((signed) x >> (W-1) ^ x) -
@@ -372,7 +379,7 @@ DEF_TUNE (X86_TUNE_USE_SIMODE_FIOP, "use_simode_fiop",
~(m_PENT | m_LAKEMONT | m_PPRO | m_CORE_ALL | m_BONNELL
| m_SILVERMONT | m_KNL | m_KNM | m_INTEL | m_AMD_MULTIPLE
| m_LUJIAZUI | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT
- | m_ALDERLAKE | m_GENERIC))
+ | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC))
/* X86_TUNE_USE_FFREEP: Use freep instruction instead of fstp. */
DEF_TUNE (X86_TUNE_USE_FFREEP, "use_ffreep", m_AMD_MULTIPLE | m_LUJIAZUI)
@@ -381,7 +388,8 @@ DEF_TUNE (X86_TUNE_USE_FFREEP, "use_ffreep", m_AMD_MULTIPLE | m_LUJIAZUI)
DEF_TUNE (X86_TUNE_EXT_80387_CONSTANTS, "ext_80387_constants",
m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BONNELL | m_SILVERMONT
| m_KNL | m_KNM | m_INTEL | m_K6_GEODE | m_ATHLON_K8 | m_LUJIAZUI
- | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_GENERIC)
+ | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM
+ | m_GENERIC)
/*****************************************************************************/
/* SSE instruction selection tuning */
@@ -397,14 +405,15 @@ DEF_TUNE (X86_TUNE_GENERAL_REGS_SSE_SPILL, "general_regs_sse_spill",
DEF_TUNE (X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL, "sse_unaligned_load_optimal",
m_NEHALEM | m_SANDYBRIDGE | m_CORE_AVX2 | m_SILVERMONT | m_KNL | m_KNM
| m_INTEL | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE
- | m_AMDFAM10 | m_BDVER | m_BTVER | m_ZNVER | m_LUJIAZUI | m_GENERIC)
+ | m_CORE_ATOM | m_AMDFAM10 | m_BDVER | m_BTVER | m_ZNVER | m_LUJIAZUI
+ | m_GENERIC)
/* X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL: Use movups for misaligned stores
instead of a sequence loading registers by parts. */
DEF_TUNE (X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL, "sse_unaligned_store_optimal",
m_NEHALEM | m_SANDYBRIDGE | m_CORE_AVX2 | m_SILVERMONT | m_KNL | m_KNM
| m_INTEL | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE
- | m_BDVER | m_ZNVER | m_LUJIAZUI | m_GENERIC)
+ | m_CORE_ATOM | m_BDVER | m_ZNVER | m_LUJIAZUI | m_GENERIC)
/* X86_TUNE_SSE_PACKED_SINGLE_INSN_OPTIMAL: Use packed single
precision 128bit instructions instead of double where possible. */
@@ -414,13 +423,13 @@ DEF_TUNE (X86_TUNE_SSE_PACKED_SINGLE_INSN_OPTIMAL, "sse_packed_single_insn_optim
/* X86_TUNE_SSE_TYPELESS_STORES: Always movaps/movups for 128bit stores. */
DEF_TUNE (X86_TUNE_SSE_TYPELESS_STORES, "sse_typeless_stores",
m_AMD_MULTIPLE | m_LUJIAZUI | m_CORE_ALL | m_TREMONT | m_ALDERLAKE
- | m_GENERIC)
+ | m_CORE_ATOM | m_GENERIC)
/* X86_TUNE_SSE_LOAD0_BY_PXOR: Always use pxor to load0 as opposed to
xorps/xorpd and other variants. */
DEF_TUNE (X86_TUNE_SSE_LOAD0_BY_PXOR, "sse_load0_by_pxor",
m_PPRO | m_P4_NOCONA | m_CORE_ALL | m_BDVER | m_BTVER | m_ZNVER
- | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE | m_GENERIC)
+ | m_LUJIAZUI | m_TREMONT | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC)
/* X86_TUNE_INTER_UNIT_MOVES_TO_VEC: Enable moves in from integer
to SSE registers. If disabled, the moves will be done by storing
@@ -467,22 +476,22 @@ DEF_TUNE (X86_TUNE_SLOW_PSHUFB, "slow_pshufb",
/* X86_TUNE_AVOID_4BYTE_PREFIXES: Avoid instructions requiring 4+ bytes of prefixes. */
DEF_TUNE (X86_TUNE_AVOID_4BYTE_PREFIXES, "avoid_4byte_prefixes",
m_SILVERMONT | m_GOLDMONT | m_GOLDMONT_PLUS | m_TREMONT | m_ALDERLAKE
- | m_INTEL)
+ | m_CORE_ATOM | m_INTEL)
/* X86_TUNE_USE_GATHER_2PARTS: Use gather instructions for vectors with 2
elements. */
DEF_TUNE (X86_TUNE_USE_GATHER_2PARTS, "use_gather_2parts",
- ~(m_ZNVER1 | m_ZNVER2 | m_ZNVER3 | m_ALDERLAKE | m_GENERIC))
+ ~(m_ZNVER1 | m_ZNVER2 | m_ZNVER3 | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC))
/* X86_TUNE_USE_GATHER_4PARTS: Use gather instructions for vectors with 4
elements. */
DEF_TUNE (X86_TUNE_USE_GATHER_4PARTS, "use_gather_4parts",
- ~(m_ZNVER1 | m_ZNVER2 | m_ZNVER3 | m_ALDERLAKE | m_GENERIC))
+ ~(m_ZNVER1 | m_ZNVER2 | m_ZNVER3 | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC))
/* X86_TUNE_USE_GATHER: Use gather instructions for vectors with 8 or more
elements. */
DEF_TUNE (X86_TUNE_USE_GATHER, "use_gather",
- ~(m_ZNVER1 | m_ZNVER2 | m_ALDERLAKE | m_GENERIC))
+ ~(m_ZNVER1 | m_ZNVER2 | m_ALDERLAKE | m_CORE_ATOM | m_GENERIC))
/* X86_TUNE_AVOID_128FMA_CHAINS: Avoid creating loops with tight 128bit or
smaller FMA chain. */