From: Richard Henderson <rth@redhat.com>
Date: Wed, 14 Jan 2004 21:12:02 +0000 (-0800)
Subject: re PR debug/13231 (Bad DWARF2 CFI when there is no frame pointer)
X-Git-Tag: releases/gcc-3.4.0~975
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b298f00fbbbe3b4ef236419ef808a83e9291a085;p=thirdparty%2Fgcc.git

re PR debug/13231 (Bad DWARF2 CFI when there is no frame pointer)

        PR debug/13231
        * dwarf2out.c (dwarf2out_stack_adjust): Skip prologue and epilogue
        instructions.

From-SVN: r75884
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index be309dd5b3e3..5da9220a8192 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2004-01-14  Richard Henderson  <rth@redhat.com>
+
+	PR debug/13231
+	* dwarf2out.c (dwarf2out_stack_adjust): Skip prologue and epilogue
+	instructions.
+
 2004-01-14  Richard Henderson  <rth@redhat.com>
 
 	PR c++/12491
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 5f75d296450c..f1f977113d55 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -1057,6 +1057,13 @@ dwarf2out_stack_adjust (rtx insn)
   const char *label;
   int i;
 
+  /* Don't handle epilogues at all.  Certainly it would be wrong to do so
+     with this function.  Proper support would require all frame-related
+     insns to be marked, and to be able to handle saving state around
+     epilogues textually in the middle of the function.  */
+  if (prologue_epilogue_contains (insn) || sibcall_epilogue_contains (insn))
+    return;
+
   if (!flag_asynchronous_unwind_tables && GET_CODE (insn) == CALL_INSN)
     {
       /* Extract the size of the args from the CALL rtx itself.  */