From: Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
To: GCC Patches <gcc-patches@gcc.gnu.org>
Subject: [PATCH 1/2] xtensa: Add RTX costs for if_then_else
Date: Sat, 30 Jul 2022 04:31:44 +0900 [thread overview]
Message-ID: <257377a9-c976-ec6a-9ce0-c26e3008a0dc@yahoo.co.jp> (raw)
It takes one machine instruction for both condtional branch and move.
gcc/ChangeLog:
* config/xtensa/xtensa.cc (xtensa_rtx_costs):
Add new case for IF_THEN_ELSE.
---
gcc/config/xtensa/xtensa.cc | 1 +
1 file changed, 1 insertion(+)
diff --git a/gcc/config/xtensa/xtensa.cc b/gcc/config/xtensa/xtensa.cc
index a851a7ae6b3..6ac879c38fb 100644
--- a/gcc/config/xtensa/xtensa.cc
+++ b/gcc/config/xtensa/xtensa.cc
@@ -4273,6 +4273,7 @@ xtensa_rtx_costs (rtx x, machine_mode mode, int outer_code,
case ZERO_EXTRACT:
case ZERO_EXTEND:
+ case IF_THEN_ELSE:
*total = COSTS_N_INSNS (1);
return true;
--
2.20.1
next reply other threads:[~2022-07-29 19:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-29 19:31 Takayuki 'January June' Suwa [this message]
2022-07-30 4:15 ` Max Filippov
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