This commit was manufactured by cvs2svn to create taghammer-3_3-merge-20030309

'hammer-3_3-merge-20030309'.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/tags/hammer-3_3-merge-20030309@64040 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 7 insertions, 0 deletions

diff --git a/gcc/cselib.c b/gcc/cselib.c
index feffa6de6cf..e34f26772ac 100644
--- a/gcc/cselib.c
+++ b/gcc/cselib.c
@@ -83,6 +83,7 @@ static GTY((param_is (cselib_val))) htab_t hash_table;
 /* This is a global so we don't have to pass this through every function.
    It is used in new_elt_loc_list to set SETTING_INSN.  */
 static rtx cselib_current_insn;
+static bool cselib_current_insn_in_libcall;
 
 /* Every new unknown value gets a unique number.  */
 static unsigned int next_unknown_value;
@@ -163,6 +164,7 @@ new_elt_loc_list (next, loc)
   el->next = next;
   el->loc = loc;
   el->setting_insn = cselib_current_insn;
+  el->in_libcall = cselib_current_insn_in_libcall;
   return el;
 }
 
@@ -1308,6 +1310,10 @@ cselib_process_insn (insn)
   int i;
   rtx x;
 
+  if (find_reg_note (insn, REG_LIBCALL, NULL))
+    cselib_current_insn_in_libcall = true;
+  if (find_reg_note (insn, REG_RETVAL, NULL))
+    cselib_current_insn_in_libcall = false;
   cselib_current_insn = insn;
 
   /* Forget everything at a CODE_LABEL, a volatile asm, or a setjmp.  */
@@ -1407,6 +1413,7 @@ cselib_init ()
   hash_table = htab_create_ggc (31, get_value_hash, entry_and_rtx_equal_p, 
 				NULL);
   clear_table (1);
+  cselib_current_insn_in_libcall = false;
 }
 
 /* Called when the current user is done with cselib.  */