From: Richard Kenner <kenner@gcc.gnu.org>
Date: Wed, 1 Sep 1993 22:41:53 +0000 (-0400)
Subject: (SECONDARY_MEMORY_NEEDED): New macro.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7ea555a4fc8b9545f7ccd71e8a8e8703c22f5056;p=gcc.git

(SECONDARY_MEMORY_NEEDED): New macro.

From-SVN: r5242
---

diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h
index f50c6b3a160..e4706fccaec 100644
--- a/gcc/config/rs6000/rs6000.h
+++ b/gcc/config/rs6000/rs6000.h
@@ -558,6 +558,12 @@ enum reg_class { NO_REGS, BASE_REGS, GENERAL_REGS, FLOAT_REGS,
 #define SECONDARY_RELOAD_CLASS(CLASS,MODE,IN) \
   secondary_reload_class (CLASS, MODE, IN)
 
+/* If we are copying between FP registers and anything else, we need a memory
+   location.  */
+
+#define SECONDARY_MEMORY_NEEDED(CLASS1,CLASS2,MODE) \
+ ((CLASS1) != (CLASS2) && ((CLASS1) == FLOAT_REGS || (CLASS2) == FLOAT_REGS))
+
 /* Return the maximum number of consecutive registers
    needed to represent mode MODE in a register of class CLASS.