From: Peter Barada <peter@the-baradas.com>
Date: Tue, 1 Jun 2004 13:22:04 +0000 (+0000)
Subject: m68k.c (m68k_output_mi_thunk): For ColdFire, use %d0 as a scratch to perform an add... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5050d266eaf5c63b62a22579c3f25c598de83417;p=gcc.git

m68k.c (m68k_output_mi_thunk): For ColdFire, use %d0 as a scratch to perform an add to memory.

	* config/m68k/m68k.c(m68k_output_mi_thunk):  For ColdFire, use %d0 as
	a scratch to perform an add to memory.

From-SVN: r82547
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index aa5a1a9df14..ebe0dc21bcf 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-06-01  Peter Barada  <peter@the-baradas.com>
+
+	* config/m68k/m68k.c(m68k_output_mi_thunk):  For ColdFire, use %d0 as
+	a scratch to perform an add to memory.
+
 2004-06-01  Bernardo Innocenti  <bernie@develer.com>
 
 	PR target/14018
diff --git a/gcc/config/m68k/m68k.c b/gcc/config/m68k/m68k.c
index 1aebe96c548..da17f65f9cd 100644
--- a/gcc/config/m68k/m68k.c
+++ b/gcc/config/m68k/m68k.c
@@ -3334,6 +3334,23 @@ m68k_output_mi_thunk (FILE *file, tree thunk ATTRIBUTE_UNUSED,
 			 "\tsubq.l %I%d,4(%Rsp)\n" :
 			 "\tsubql %I%d,%Rsp@(4)\n",
 		 (int) -delta);
+  else if (TARGET_COLDFIRE)
+    {
+      /* ColdFire can't add/sub a constant to memory unless it is in
+	 the range of addq/subq.  So load the value into %d0 and
+	 then add it to 4(%sp). */
+      if (delta >= -128 && delta <= 127)
+	asm_fprintf (file, MOTOROLA ?
+		     "\tmoveq.l %I%wd,%Rd0\n" :
+		     "\tmoveql %I%wd,%Rd0\n", delta);
+      else
+	asm_fprintf (file, MOTOROLA ?
+		     "\tmove.l %I%wd,%Rd0\n" :
+		     "\tmovel %I%wd,%Rd0\n", delta);
+      asm_fprintf (file, MOTOROLA ?
+		   "\tadd.l %Rd0,4(%Rsp)\n" :
+		   "\taddl %Rd0,%Rsp@(4)\n");
+    }
   else
     asm_fprintf (file, MOTOROLA ?
 			 "\tadd.l %I%wd,4(%Rsp)\n" :