Ensure earlyclobbered operands go through a terminate_write stage.

	* regrename.c (record_out_operands): Terminate earlyclobbered
	operands here.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@230500 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index cdd7036..4037505 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,8 @@
 2015-11-17  Bernd Schmidt  <bschmidt@redhat.com>
 
+       * regrename.c (record_out_operands): Terminate earlyclobbered
+       operands here.
+
        PR target/66785
        * regrename.c (record_operand_use): Keep track of failed operands
        and stop appending if we see any.

diff --git a/gcc/regrename.c b/gcc/regrename.c
index e126fcc..4d6eb37 100644 (file)
--- a/gcc/regrename.c
+++ b/gcc/regrename.c
@@ -1558,6 +1558,8 @@ record_out_operands (rtx_insn *insn, bool earlyclobber, insn_rr_info *insn_info)
        cur_operand = insn_info->op_info + i;
 
       prev_open = open_chains;
+      if (earlyclobber)
+       scan_rtx (insn, loc, cl, terminate_write, OP_OUT);
       scan_rtx (insn, loc, cl, mark_write, OP_OUT);
 
       /* ??? Many targets have output constraints on the SET_DEST