From: Juzhe-Zhong <juzhe.zhong@rivai.ai>
To: gcc-patches@gcc.gnu.org
Cc: kito.cheng@gmail.com, kito.cheng@sifive.com,
jeffreyalaw@gmail.com, rdapp.gcc@gmail.com,
Juzhe-Zhong <juzhe.zhong@rivai.ai>
Subject: [PATCH] RISC-V: Add dynamic LMUL compile option
Date: Fri, 1 Sep 2023 07:12:17 +0800 [thread overview]
Message-ID: <20230831231217.1853555-1-juzhe.zhong@rivai.ai> (raw)
We are going to support dynamic LMUL support.
gcc/ChangeLog:
* config/riscv/riscv-opts.h (enum riscv_autovec_lmul_enum): Add dynamic enum.
* config/riscv/riscv.opt: Add dynamic compile option.
---
gcc/config/riscv/riscv-opts.h | 4 +++-
gcc/config/riscv/riscv.opt | 3 +++
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/gcc/config/riscv/riscv-opts.h b/gcc/config/riscv/riscv-opts.h
index 5ed69abd214..79e0f12e388 100644
--- a/gcc/config/riscv/riscv-opts.h
+++ b/gcc/config/riscv/riscv-opts.h
@@ -79,7 +79,9 @@ enum riscv_autovec_lmul_enum {
RVV_M1 = 1,
RVV_M2 = 2,
RVV_M4 = 4,
- RVV_M8 = 8
+ RVV_M8 = 8,
+ /* For dynamic LMUL, we compare COST start with LMUL8. */
+ RVV_DYNAMIC = RVV_M8
};
enum riscv_multilib_select_kind {
diff --git a/gcc/config/riscv/riscv.opt b/gcc/config/riscv/riscv.opt
index d2407c3c502..eca0dda4dd5 100644
--- a/gcc/config/riscv/riscv.opt
+++ b/gcc/config/riscv/riscv.opt
@@ -311,6 +311,9 @@ Enum(riscv_autovec_lmul) String(m4) Value(RVV_M4)
EnumValue
Enum(riscv_autovec_lmul) String(m8) Value(RVV_M8)
+EnumValue
+Enum(riscv_autovec_lmul) String(dynamic) Value(RVV_DYNAMIC)
+
-param=riscv-autovec-lmul=
Target RejectNegative Joined Enum(riscv_autovec_lmul) Var(riscv_autovec_lmul) Init(RVV_M1)
-param=riscv-autovec-lmul=<string> Set the RVV LMUL of auto-vectorization in the RISC-V port.
--
2.36.3
next reply other threads:[~2023-08-31 23:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-31 23:12 Juzhe-Zhong [this message]
2023-09-01 9:57 ` Robin Dapp
2023-09-01 10:59 ` Li, Pan2
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