From: Robert Suchanek <robert.suchanek@imgtec.com>
Date: Fri, 16 Jan 2015 12:31:11 +0000 (+0000)
Subject: Adjust handling of word sized subregs for OP_OUT
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8b8e23de943203a28cb667648cb7d7f9e39f64a7;p=gcc.git

Adjust handling of word sized subregs for OP_OUT

gcc/
	* lra-constraints.c (curr_insn_transform): Change a reload pseudo of
	type OP_OUT to OP_INOUT.

From-SVN: r219730
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b9f45a05201..b4a1ed73846 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2015-01-16  Robert Suchanek  <robert.suchanek@imgtec.com>
+
+	* lra-constraints.c (curr_insn_transform): Change a reload pseudo of
+	type OP_OUT to OP_INOUT.
+
 2015-01-16  Robert Suchanek  <robert.suchanek@imgtec.com>
 
 	* simplify-rtx.c (simplify_replace_fn_rtx): Simplify (lo_sum
diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c
index f102fe5010f..6e4be72fedd 100644
--- a/gcc/lra-constraints.c
+++ b/gcc/lra-constraints.c
@@ -3802,6 +3802,8 @@ curr_insn_transform (bool check_only_p)
 				  (ira_class_hard_regs[goal_alt[i]][0],
 				   GET_MODE (reg), byte, mode) >= 0)))))
 		{
+		  if (type == OP_OUT)
+		    type = OP_INOUT;
 		  loc = &SUBREG_REG (*loc);
 		  mode = GET_MODE (*loc);
 		}