From: renlin <renlin@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed, 26 Aug 2015 17:37:42 +0000 (+0000)
Subject: [PATCH][AARCH64]Add backend aarch64_bfi pattern.
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7ebdc8814144cabb6224f5a50e1bddb357f15fe8;p=thirdparty%2Fgcc.git

[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.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227226 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a0c4fb99acd4..c56f8ba11f52 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 80fd6c4894eb..c8511f0c8857 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 b1dcc1588dc1..27be013c3d9f 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 000000000000..accf14410938
--- /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" } } */