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* [gcc r12-8536] Fix ICE on sh
@ 2022-07-01 15:27 Joseph Myers
  0 siblings, 0 replies; only message in thread
From: Joseph Myers @ 2022-07-01 15:27 UTC (permalink / raw)
  To: gcc-cvs

https://gcc.gnu.org/g:962e7f0803f163f9cf44d64a2e199935d3f361fe

commit r12-8536-g962e7f0803f163f9cf44d64a2e199935d3f361fe
Author: Vladimir Makarov <vmakarov@gcc.gnu.org>
Date:   Sat May 28 12:08:38 2022 -0600

    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)

Diff:
---
 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 8d4056338a5..03e1c04ec7e 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);
 }


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