(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 1d132c7af4ce5ab102598178a2e3c5c855747246..f65ea0a63f892cdfd4cf05e1aae4f8259c10b729 100644 (file)
--- 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)