From: Jakub Jelinek <jakub@redhat.com>
Date: Thu, 10 Jun 2004 08:23:00 +0000 (+0200)
Subject: unwind-ia64.c (uw_frame_state_for): Don't assume a leaf function without unwind info... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=897105a14e2a6d66f472b57e98793798e459b5a9;p=gcc.git

unwind-ia64.c (uw_frame_state_for): Don't assume a leaf function without unwind info at RP 0.

	* config/ia64/unwind-ia64.c (uw_frame_state_for): Don't assume a
	leaf function without unwind info at RP 0.

From-SVN: r82906
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index fa7c16d3489..ed3165aa850 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-06-10  Jakub Jelinek  <jakub@redhat.com>
+
+	* config/ia64/unwind-ia64.c (uw_frame_state_for): Don't assume a
+	leaf function without unwind info at RP 0.
+
 2004-06-10  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/14791
diff --git a/gcc/config/ia64/unwind-ia64.c b/gcc/config/ia64/unwind-ia64.c
index b4fe9ac1c4c..1c88b729064 100644
--- a/gcc/config/ia64/unwind-ia64.c
+++ b/gcc/config/ia64/unwind-ia64.c
@@ -1783,8 +1783,10 @@ uw_frame_state_for (struct _Unwind_Context *context, _Unwind_FrameState *fs)
 	 an unwind table entry.
 
 	 This can only happen in the frame after unwinding through a signal
-	 handler.  Avoid infinite looping by requiring that B0 != RP.  */
-      if (context->br_loc[0] && *context->br_loc[0] != context->rp)
+	 handler.  Avoid infinite looping by requiring that B0 != RP.
+	 RP == 0 terminates the chain.  */
+      if (context->br_loc[0] && *context->br_loc[0] != context->rp
+	  && context->rp != 0)
 	{
 	  fs->curr.reg[UNW_REG_RP].where = UNW_WHERE_BR;
 	  fs->curr.reg[UNW_REG_RP].when = -1;