From: Jim Wilson <wilson@gcc.gnu.org>
Date: Sun, 25 Apr 1993 21:14:37 +0000 (-0700)
Subject: (output_function_epilogue): Emit 'nop' instead of
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9bb7ffda7088261370a2b954b137f4ddb467c038;p=gcc.git

(output_function_epilogue): Emit 'nop' instead of
'sub %sp,-0,%sp' when the frame is empty.

From-SVN: r4218
---

diff --git a/gcc/config/sparc/sparc.c b/gcc/config/sparc/sparc.c
index 1d132c7af4c..f65ea0a63f8 100644
--- a/gcc/config/sparc/sparc.c
+++ b/gcc/config/sparc/sparc.c
@@ -2246,6 +2246,10 @@ output_function_epilogue (file, size, leaf_function)
 	  final_scan_insn (XEXP (current_function_epilogue_delay_list, 0),
 			   file, 1, 0, 1);
 	}
+      /* Output 'nop' instead of 'sub %sp,-0,%sp' when no frame, so as to
+	 avoid generating confusing assembly language output.  */
+      else if (actual_fsize == 0)
+	fprintf (file, "\t%s\n\tnop\n", ret);
       else if (actual_fsize <= 4096)
 	fprintf (file, "\t%s\n\tsub %%sp,-%d,%%sp\n", ret, actual_fsize);
       else if (actual_fsize <= 8192)