re PR middle-end/40304 (Revision 147995 breaks stack unwind)

	PR middle-end/40304
	* config/i386/i386.c (pro_epilogue_adjust_stack): Mark insns
	frame related even if !set_cfa && style < 0.

From-SVN: r148011

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6c28aeb..ef129f5 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2009-05-31  Jakub Jelinek  <jakub@redhat.com>
+
+       PR middle-end/40304
+       * config/i386/i386.c (pro_epilogue_adjust_stack): Mark insns
+       frame related even if !set_cfa && style < 0.
+
 2009-05-30  Kai Tietz  <kai.tietz@onevision.com>
 
        * config/i386/mingw-tls.c: New file.

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index bf7fa0c..c6b388f 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -8026,6 +8026,8 @@ pro_epilogue_adjust_stack (rtx dest, rtx src, rtx offset,
       gcc_assert (style);
       r11 = gen_rtx_REG (DImode, R11_REG);
       insn = emit_insn (gen_rtx_SET (DImode, r11, offset));
+      if (style < 0)
+       RTX_FRAME_RELATED_P (insn) = 1;
       insn = emit_insn (gen_pro_epilogue_adjust_stack_rex64_2 (dest, src, r11,
                                                               offset));
     }
@@ -8043,6 +8045,8 @@ pro_epilogue_adjust_stack (rtx dest, rtx src, rtx offset,
       add_reg_note (insn, REG_CFA_ADJUST_CFA, r);
       RTX_FRAME_RELATED_P (insn) = 1;
     }
+  else if (style < 0)
+    RTX_FRAME_RELATED_P (insn) = 1;
 }
 
 /* Find an available register to be used as dynamic realign argument