From: Nathan Sidwell <nathan@acm.org>
Date: Wed, 9 Sep 2015 14:07:01 +0000 (+0000)
Subject: nvptx.md (atomic_compare_and_swap<mode>): Use sel_truesi, not andsi.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=41c3713a005950571de21c5755ae060e8b62c1aa;p=gcc.git

nvptx.md (atomic_compare_and_swap<mode>): Use sel_truesi, not andsi.

	* config/nvptx/nvptx.md (atomic_compare_and_swap<mode>): Use
	sel_truesi, not andsi.

From-SVN: r227587
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 618bbe63abc..ed788ff4d34 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2015-09-09  Nathan Sidwell  <nathan@acm.org>
+
+	* config/nvptx/nvptx.md (atomic_compare_and_swap<mode>): Use
+	sel_truesi, not andsi.
+
 2015-09-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
 	* config/arm/arm.md (*subsi3_compare0): Rename to...
diff --git a/gcc/config/nvptx/nvptx.md b/gcc/config/nvptx/nvptx.md
index b857e53bb22..f2ec3e4b0bf 100644
--- a/gcc/config/nvptx/nvptx.md
+++ b/gcc/config/nvptx/nvptx.md
@@ -1351,14 +1351,12 @@
    (match_operand:SI 7 "const_int_operand")]		;; failure model
   ""
 {
-  emit_insn (gen_atomic_compare_and_swap<mode>_1 (operands[1], operands[2], operands[3],
-					          operands[4], operands[6]));
-
-  rtx tmp = gen_reg_rtx (GET_MODE (operands[0]));
-  emit_insn (gen_cstore<mode>4 (tmp,
-				gen_rtx_EQ (SImode, operands[1], operands[3]),
-				operands[1], operands[3]));
-  emit_insn (gen_andsi3 (operands[0], tmp, GEN_INT (1)));
+  emit_insn (gen_atomic_compare_and_swap<mode>_1
+    (operands[1], operands[2], operands[3], operands[4], operands[6]));
+
+  rtx cond = gen_reg_rtx (BImode);
+  emit_move_insn (cond, gen_rtx_EQ (BImode, operands[1], operands[3]));
+  emit_insn (gen_sel_truesi (operands[0], cond, GEN_INT (1), GEN_INT (0)));
   DONE;
 })