From: Jeffrey A Law <law@cygnus.com>
Date: Mon, 16 Apr 2001 15:13:32 +0000 (+0000)
Subject: pa.c (secondary_reload_class): SAR<->FP copies require a secondary register.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=26ee120d31cf2890ac579d666661cbd829eec893;p=gcc.git

pa.c (secondary_reload_class): SAR<->FP copies require a secondary register.

        * pa.c (secondary_reload_class): SAR<->FP copies require a
        secondary register.

From-SVN: r41379
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index da7a5e7c4bc..4c4dc57da1c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,8 @@
 Mon Apr 16 08:03:48 2001  Jeffrey A Law  (law@cygnus.com)
 
+	* pa.c (secondary_reload_class): SAR<->FP copies require a 
+	secondary register.
+
 	* install.texi (mips-mips-bsd): Update list of functions
 	required to include memmove.
 	* tm.texi (TARGET_MEM_FUNCTIONS): Update list of implicitly
diff --git a/gcc/config/pa/pa.c b/gcc/config/pa/pa.c
index 050681b54ba..5b8505be4b9 100644
--- a/gcc/config/pa/pa.c
+++ b/gcc/config/pa/pa.c
@@ -4694,6 +4694,13 @@ secondary_reload_class (class, mode, in)
       || (class == SHIFT_REGS && (regno <= 0 || regno >= 32)))
     return GENERAL_REGS;
 
+  /* A SAR<->FP register copy requires a secondary register (GPR) as
+     well as secondary memory.  */
+  if (regno >= 0 && regno < FIRST_PSEUDO_REGISTER
+      && ((REGNO_REG_CLASS (regno) == SHIFT_REGS && FP_REG_CLASS_P (class))
+	  || (class == SHIFT_REGS && FP_REG_CLASS_P (REGNO_REG_CLASS (regno)))))
+    return GENERAL_REGS;
+
   if (GET_CODE (in) == HIGH)
     in = XEXP (in, 0);