From ffdbb8e02280e37b2f81ed40b98f7168dc502c52 Mon Sep 17 00:00:00 2001 From: YunQiang Su Date: Sat, 30 Dec 2023 00:17:52 +0800 Subject: [PATCH] MIPS: define_attr perf_ratio in mips.md The accurate cost of an pattern can get with insn_count * perf_ratio The default value is set to 0 instead of 1, since that we will need to distinguish the default value and it is really set for an pattern. Since it is not set for most patterns yet, to use it, we will need to be sure that it's value is greater than 0. This attr will be used in `mips_insn_cost`. gcc * config/mips/mips.md (perf_ratio): New attribute. --- gcc/config/mips/mips.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/gcc/config/mips/mips.md b/gcc/config/mips/mips.md index 6d47241ea3a3..e1762ce105bd 100644 --- a/gcc/config/mips/mips.md +++ b/gcc/config/mips/mips.md @@ -312,6 +312,10 @@ ;; "11" specifies MEMMODEL_ACQUIRE. (define_attr "sync_memmodel" "" (const_int 10)) +;; Performance ratio. Add this attr to the slow INSNs. +;; Used by mips_insn_cost. +(define_attr "perf_ratio" "" (const_int 0)) + ;; Accumulator operand for madd patterns. (define_attr "accum_in" "none,0,1,2,3,4,5" (const_string "none")) -- 2.47.2