Set power10 fusion if -mtune=power10. In doing the patch for zero cycle moves for switch statements and indirect jumps, I noticed the fusion support is only done if -mcpu=power10. This option enables power10 fusion if we use -mtune=power10.
I have built and run the testsuites on little endian power9 and power10 systems with no regressions. Can I install this patch? 2021-11-19 Michael Meissner <meiss...@the-meissners.org> * config/rs6000/rs6000.c (rs6000_option_override_internal): Enable power10 fusion if -mtune=power10. (rs6000_opt_masks): Add power10 fusion options. --- gcc/config/rs6000/rs6000.c | 25 +++++++++++++++++-------- 1 file changed, 17 insertions(+), 8 deletions(-) diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 6780304a5eb..8531cef0337 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -4469,35 +4469,36 @@ rs6000_option_override_internal (bool global_init_p) if (TARGET_POWER10 && (rs6000_isa_flags_explicit & OPTION_MASK_MMA) == 0) rs6000_isa_flags |= OPTION_MASK_MMA; - if (TARGET_POWER10 + /* Enable power10 tuning if either -mcpu=power10 or -mtune=power10. */ + if ((TARGET_POWER10 || rs6000_tune == PROCESSOR_POWER10) && (rs6000_isa_flags_explicit & OPTION_MASK_P10_FUSION) == 0) rs6000_isa_flags |= OPTION_MASK_P10_FUSION; - if (TARGET_POWER10 && + if (TARGET_P10_FUSION && (rs6000_isa_flags_explicit & OPTION_MASK_P10_FUSION_LD_CMPI) == 0) rs6000_isa_flags |= OPTION_MASK_P10_FUSION_LD_CMPI; - if (TARGET_POWER10 + if (TARGET_P10_FUSION && (rs6000_isa_flags_explicit & OPTION_MASK_P10_FUSION_2LOGICAL) == 0) rs6000_isa_flags |= OPTION_MASK_P10_FUSION_2LOGICAL; - if (TARGET_POWER10 + if (TARGET_P10_FUSION && (rs6000_isa_flags_explicit & OPTION_MASK_P10_FUSION_LOGADD) == 0) rs6000_isa_flags |= OPTION_MASK_P10_FUSION_LOGADD; - if (TARGET_POWER10 + if (TARGET_P10_FUSION && (rs6000_isa_flags_explicit & OPTION_MASK_P10_FUSION_ADDLOG) == 0) rs6000_isa_flags |= OPTION_MASK_P10_FUSION_ADDLOG; - if (TARGET_POWER10 + if (TARGET_P10_FUSION && (rs6000_isa_flags_explicit & OPTION_MASK_P10_FUSION_2ADD) == 0) rs6000_isa_flags |= OPTION_MASK_P10_FUSION_2ADD; - if (TARGET_POWER10 + if (TARGET_P10_FUSION && (rs6000_isa_flags_explicit & OPTION_MASK_P10_FUSION_2STORE) == 0) rs6000_isa_flags |= OPTION_MASK_P10_FUSION_2STORE; - if (TARGET_POWER10 + if (TARGET_P10_FUSION && (rs6000_isa_flags_explicit & OPTION_MASK_P10_FUSION_ZERO_CYCLE) == 0) rs6000_isa_flags |= OPTION_MASK_P10_FUSION_ZERO_CYCLE; @@ -24292,6 +24293,14 @@ static struct rs6000_opt_mask const rs6000_opt_masks[] = { "power9-misc", OPTION_MASK_P9_MISC, false, true }, { "power9-vector", OPTION_MASK_P9_VECTOR, false, true }, { "power10-fusion", OPTION_MASK_P10_FUSION, false, true }, + { "power10-fusion-ld-cmpi", OPTION_MASK_P10_FUSION_LD_CMPI, false, true }, + { "power10-fusion-2logical", OPTION_MASK_P10_FUSION_2LOGICAL,false, true }, + { "power10-fusion-logical-add", OPTION_MASK_P10_FUSION_LOGADD,false, true }, + { "power10-fusion-add-logical", OPTION_MASK_P10_FUSION_ADDLOG,false, true }, + { "power10-fusion-2add", OPTION_MASK_P10_FUSION_2ADD, false, true }, + { "power10-fusion-2store", OPTION_MASK_P10_FUSION_2STORE, false, true }, + { "power10-fusion-zero-cycle", OPTION_MASK_P10_FUSION_ZERO_CYCLE, + false, true }, { "powerpc-gfxopt", OPTION_MASK_PPC_GFXOPT, false, true }, { "powerpc-gpopt", OPTION_MASK_PPC_GPOPT, false, true }, { "prefixed", OPTION_MASK_PREFIXED, false, true }, -- 2.31.1 -- Michael Meissner, IBM PO Box 98, Ayer, Massachusetts, USA, 01432 email: meiss...@linux.ibm.com