From 962e7f0803f163f9cf44d64a2e199935d3f361fe Mon Sep 17 00:00:00 2001
From: Vladimir Makarov <vmakarov@gcc.gnu.org>
Date: Sat, 28 May 2022 12:08:38 -0600
Subject: [PATCH] Fix ICE on sh

gcc/
	PR target/103722
	* config/sh/sh.cc (sh_register_move_cost): Avoid cost "2" (which
	is special) for various scenarios.

(cherry picked from commit ce1580252ea57de23a595e9804ea87ed4353aa6a)
---
 gcc/config/sh/sh.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gcc/config/sh/sh.cc b/gcc/config/sh/sh.cc
index 8d40563..03e1c04 100644
--- a/gcc/config/sh/sh.cc
+++ b/gcc/config/sh/sh.cc
@@ -10762,6 +10762,12 @@ sh_register_move_cost (machine_mode mode,
       && ! REGCLASS_HAS_GENERAL_REG (dstclass))
     return 2 * ((GET_MODE_SIZE (mode) + 7) / 8U);
 
+  if (((dstclass == FP_REGS || dstclass == DF_REGS)
+       && (srcclass == PR_REGS))
+      || ((srcclass == FP_REGS || srcclass == DF_REGS)
+	  && (dstclass == PR_REGS)))
+    return 7;
+
   return 2 * ((GET_MODE_SIZE (mode) + 3) / 4U);
 }
 
-- 
2.7.4