From e4f019d316695dc3bd9f509b8f3e16b5954fe231 Mon Sep 17 00:00:00 2001
From: Renlin Li <renlin.li@arm.com>
Date: Wed, 26 Aug 2015 17:37:42 +0000
Subject: [PATCH] [PATCH][AARCH64]Add backend aarch64_bfi pattern.

2015-08-26  Renlin Li  <renlin.li@arm.com>

gcc/
	* config/aarch64/aarch64.md (aarch64_bfi): New pattern.

gcc/testsuite/
	* gcc.target/aarch64/combine_bfi_1.c: New.

From-SVN: r227226
---
 gcc/ChangeLog                                 |  4 +++
 gcc/config/aarch64/aarch64.md                 | 10 ++++++
 gcc/testsuite/ChangeLog                       |  4 +++
 .../gcc.target/aarch64/combine_bfi_1.c        | 34 +++++++++++++++++++
 4 files changed, 52 insertions(+)
 create mode 100644 gcc/testsuite/gcc.target/aarch64/combine_bfi_1.c

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a0c4fb99acd..c56f8ba11f5 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2015-08-26  Renlin Li  <renlin.li@arm.com>
+
+	* config/aarch64/aarch64.md (*aarch64_bfi<GPI:mode><ALLX:mode>4): New.
+
 2015-08-26  Marcus Shawcroft  <marcus.shawcroft@arm.com>
 	    Jiong Wang  <jiong.wang@arm.com>
 
diff --git a/gcc/config/aarch64/aarch64.md b/gcc/config/aarch64/aarch64.md
index 80fd6c4894e..c8511f0c885 100644
--- a/gcc/config/aarch64/aarch64.md
+++ b/gcc/config/aarch64/aarch64.md
@@ -3927,6 +3927,16 @@
   [(set_attr "type" "bfm")]
 )
 
+(define_insn "*aarch64_bfi<GPI:mode><ALLX:mode>4"
+  [(set (zero_extract:GPI (match_operand:GPI 0 "register_operand" "+r")
+			  (match_operand 1 "const_int_operand" "n")
+			  (match_operand 2 "const_int_operand" "n"))
+	(zero_extend:GPI (match_operand:ALLX 3  "register_operand" "r")))]
+  "UINTVAL (operands[1]) <= <ALLX:sizen>"
+  "bfi\\t%<GPI:w>0, %<GPI:w>3, %2, %1"
+  [(set_attr "type" "bfm")]
+)
+
 (define_insn "*extr_insv_lower_reg<mode>"
   [(set (zero_extract:GPI (match_operand:GPI 0 "register_operand" "+r")
 			  (match_operand 1 "const_int_operand" "n")
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index b1dcc1588dc..27be013c3d9 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2015-08-26  Renlin Li  <renlin.li@arm.com>
+
+	* gcc.target/aarch64/combine_bfi_1.c: New testcase.
+
 2015-08-26  Jiong Wang  <jiong.wang@arm.com>
 
 	* gcc.target/aarch64/tlsie_tiny_1.c: New testcase.
diff --git a/gcc/testsuite/gcc.target/aarch64/combine_bfi_1.c b/gcc/testsuite/gcc.target/aarch64/combine_bfi_1.c
new file mode 100644
index 00000000000..accf1441093
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/combine_bfi_1.c
@@ -0,0 +1,34 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-rtl-combine" } */
+
+int
+f1 (int x, int y)
+{
+  return (x & ~0x0ffff00) | ((y << 8) & 0x0ffff00);
+}
+
+int
+f2 (int x, int y)
+{
+  return (x & ~0x0ff000) | ((y & 0x0ff) << 12);
+}
+
+int
+f3 (int x, int y)
+{
+  return (x & ~0xffff) | (y & 0xffff);
+}
+
+int
+f4 (int x, int y)
+{
+  return (x & ~0xff) | (y & 0xff);
+}
+
+long
+f5 (long x, long y)
+{
+  return (x & ~0xffffffffull) | (y & 0xffffffff);
+}
+
+/* { dg-final { scan-rtl-dump-times "\\*aarch64_bfi" 5 "combine" } } */
-- 
2.30.2