(expand_builtin, case BUILT_IN_SETJMP): CLOBBER the static chain after

label at setjmp point.

From-SVN: r11886

diff --git a/gcc/expr.c b/gcc/expr.c
index 278cfb36af4de1e39f103498f87d2b5dd7abbdcd..f61ff823a21ad72d79e6b9a6f97a6b317df78d66 100644 (file)
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -8593,6 +8593,10 @@ expand_builtin (exp, target, subtarget, mode, ignore)
           make sure it's marked as used by this function.   */
        emit_insn (gen_rtx (USE, VOIDmode, hard_frame_pointer_rtx));
 
+       /* Mark the static chain as clobbered here so life information
+          doesn't get messed up for it.  */
+       emit_insn (gen_rtx (CLOBBER, VOIDmode, static_chain_rtx));
+
        /* Now put in the code to restore the frame pointer, and argument
           pointer, if needed.  The code below is from expand_end_bindings
           in stmt.c; see detailed documentation there.  */