From: Wang Pengcheng <wangpengcheng.pp@bytedance.com>
Date: Wed, 20 Dec 2023 17:32:59 +0000 (-0700)
Subject: [PATCH] RISC-V: Fix RISCV_FUSE_ZEXTWS fusion condition
X-Git-Tag: basepoints/gcc-15~3384
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=eef65d60a8bb2e9328fd9d2b6cd869618be4f08e;p=thirdparty%2Fgcc.git

[PATCH] RISC-V: Fix RISCV_FUSE_ZEXTWS fusion condition

The condition is RISCV_FUSE_ZEXTH, which is a mistake.

gcc/ChangeLog:

	* config/riscv/riscv.cc (riscv_macro_fusion_pair_p): Fix condition.
---

diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc
index d9b45f17a1b8..c6784a221274 100644
--- a/gcc/config/riscv/riscv.cc
+++ b/gcc/config/riscv/riscv.cc
@@ -8096,8 +8096,9 @@ riscv_macro_fusion_pair_p (rtx_insn *prev, rtx_insn *curr)
   if (!riscv_macro_fusion_p ())
     return false;
 
-  if (simple_sets_p && (riscv_fusion_enabled_p (RISCV_FUSE_ZEXTW) ||
-			riscv_fusion_enabled_p (RISCV_FUSE_ZEXTH)))
+  if (simple_sets_p
+      && (riscv_fusion_enabled_p (RISCV_FUSE_ZEXTW)
+	  || riscv_fusion_enabled_p (RISCV_FUSE_ZEXTWS)))
     {
       /* We are trying to match the following:
 	   prev (slli) == (set (reg:DI rD)