From: Segher Boessenkool <segher@kernel.crashing.org>
Date: Fri, 14 Dec 2018 08:29:34 +0000 (+0100)
Subject: match_asm_constraints: Use copy_rtx where needed (PR88001)
X-Git-Tag: upstream/12.2.0~27332
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6c4ff3c98c19594ed17f3ad8a3a25a5939e16b30;p=platform%2Fupstream%2Fgcc.git

match_asm_constraints: Use copy_rtx where needed (PR88001)

The new insn here (temporarily) illegally shares RTL.  This fixes it.


	PR rtl-optimization/88001
	* function.c (match_asm_constraints_1): Don't invalidly share RTL.

From-SVN: r267122
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 39521bc..6222a3f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2018-12-14  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	PR rtl-optimization/88001
+	* function.c (match_asm_constraints_1): Don't invalidly share RTL.
+
 2018-12-14  Bin Cheng  <bin.cheng@linux.alibaba.com>
 
 	* auto-profile.c (afdo_annotate_cfg): Call update_max_bb_count even
diff --git a/gcc/function.c b/gcc/function.c
index 69523c1..60e96f3 100644
--- a/gcc/function.c
+++ b/gcc/function.c
@@ -6529,7 +6529,7 @@ match_asm_constraints_1 (rtx_insn *insn, rtx *p_sets, int noutputs)
       output_matched[match] = true;
 
       start_sequence ();
-      emit_move_insn (output, input);
+      emit_move_insn (output, copy_rtx (input));
       insns = get_insns ();
       end_sequence ();
       emit_insn_before (insns, insn);