nios2.c (nios2_emit_move_sequence): Call copy_rtx to avoid shared structure error.

2016-12-11  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* config/nios2/nios2.c (nios2_emit_move_sequence): Call copy_rtx
	to avoid shared structure error.

From-SVN: r243538

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b6a058bf4494d140116868b1221cf07b14edabbc..d0d4001c0c4f19f77bf3fe0d3ad7093877cbad07 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-12-11  Sandra Loosemore  <sandra@codesourcery.com>
+
+       * config/nios2/nios2.c (nios2_emit_move_sequence): Call copy_rtx
+       to avoid shared structure error.
+
 2016-12-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
 
        PR target/78695

diff --git a/gcc/config/nios2/nios2.c b/gcc/config/nios2/nios2.c
index cb4544c544b1c4abad392ac8887db3fb366aad84..a6d7d4351d7001b1eb798aaa4a328531be7b34d4 100644 (file)
--- a/gcc/config/nios2/nios2.c
+++ b/gcc/config/nios2/nios2.c
@@ -2334,7 +2334,8 @@ nios2_emit_move_sequence (rtx *operands, machine_mode mode)
            from = nios2_legitimize_constant_address (from);
          if (CONSTANT_P (from))
            {
-             emit_insn (gen_rtx_SET (to, gen_rtx_HIGH (Pmode, from)));
+             emit_insn (gen_rtx_SET (to,
+                                     gen_rtx_HIGH (Pmode, copy_rtx (from))));
              emit_insn (gen_rtx_SET (to, gen_rtx_LO_SUM (Pmode, to, from)));
              set_unique_reg_note (get_last_insn (), REG_EQUAL,
                                   copy_rtx (operands[1]));