From b851bce473d8e573b1b586c71d47e71067b4fa66 Mon Sep 17 00:00:00 2001
From: Levy Hsu <admin@levyhsu.com>
Date: Tue, 3 Sep 2024 15:44:06 +0930
Subject: [PATCH] i386: Integrate BFmode for Enhanced Vectorization in
ix86_preferred_simd_mode
This change adds BFmode support to the ix86_preferred_simd_mode function
enhancing SIMD vectorization for BF16 operations. The update ensures
optimized usage of SIMD capabilities improving performance and aligning
vector sizes with processor capabilities.
gcc/ChangeLog:
* config/i386/i386.cc (ix86_preferred_simd_mode): Add BFmode Support.
---
gcc/config/i386/i386.cc | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/gcc/config/i386/i386.cc b/gcc/config/i386/i386.cc
index e8744fa77ead..c18a2647c2a4 100644
--- a/gcc/config/i386/i386.cc
+++ b/gcc/config/i386/i386.cc
@@ -24574,6 +24574,14 @@ ix86_preferred_simd_mode (scalar_mode mode)
}
return word_mode;
+ case E_BFmode:
+ if (TARGET_AVX512F && TARGET_EVEX512 && !TARGET_PREFER_AVX256)
+ return V32BFmode;
+ else if (TARGET_AVX && !TARGET_PREFER_AVX128)
+ return V16BFmode;
+ else
+ return V8BFmode;
+
case E_SFmode:
if (TARGET_AVX512F && TARGET_EVEX512 && !TARGET_PREFER_AVX256)
return V16SFmode;
--
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