AArch64 backend support for ROR instruction.

From-SVN: r196796

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4b2d216..d55999e 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 2013-03-19  Ian Bolton  <ian.bolton@arm.com>
 
+       * config/aarch64/aarch64.md (*ror<mode>3_insn): New pattern.
+       (*rorsi3_insn_uxtw): Likewise.
+
+2013-03-19  Ian Bolton  <ian.bolton@arm.com>
+
        * config/aarch64/aarch64.md (*extr<mode>5_insn): New pattern.
        (*extrsi5_insn_uxtw): Likewise.
 

diff --git a/gcc/config/aarch64/aarch64.md b/gcc/config/aarch64/aarch64.md
index 8fc86d4..4358b44 100644 (file)
--- a/gcc/config/aarch64/aarch64.md
+++ b/gcc/config/aarch64/aarch64.md
@@ -2731,6 +2731,34 @@
    (set_attr "mode" "SI")]
 )
 
+(define_insn "*ror<mode>3_insn"
+  [(set (match_operand:GPI 0 "register_operand" "=r")
+       (rotate:GPI (match_operand:GPI 1 "register_operand" "r")
+                   (match_operand 2 "const_int_operand" "n")))]
+  "UINTVAL (operands[2]) < GET_MODE_BITSIZE (<MODE>mode)"
+{
+  operands[3] = GEN_INT (<sizen> - UINTVAL (operands[2]));
+  return "ror\\t%<w>0, %<w>1, %3";
+}
+  [(set_attr "v8type" "shift")
+   (set_attr "mode" "<MODE>")]
+)
+
+;; zero_extend version of the above
+(define_insn "*rorsi3_insn_uxtw"
+  [(set (match_operand:DI 0 "register_operand" "=r")
+       (zero_extend:DI
+        (rotate:SI (match_operand:SI 1 "register_operand" "r")
+                   (match_operand 2 "const_int_operand" "n"))))]
+  "UINTVAL (operands[2]) < 32"
+{
+  operands[3] = GEN_INT (32 - UINTVAL (operands[2]));
+  return "ror\\t%w0, %w1, %3";
+}
+  [(set_attr "v8type" "shift")
+   (set_attr "mode" "SI")]
+)
+
 (define_insn "*<ANY_EXTEND:optab><GPI:mode>_ashl<SHORT:mode>"
   [(set (match_operand:GPI 0 "register_operand" "=r")
        (ANY_EXTEND:GPI

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index fa69025..e198a6e 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,9 @@
 2013-03-19  Ian Bolton  <ian.bolton@arm.com>
 
+       * gcc.target/aarch64/ror.c: New test.
+
+2013-03-19  Ian Bolton  <ian.bolton@arm.com>
+
        * gcc.target/aarch64/extr.c: New test.
 
 2013-03-19  Richard Biener  <rguenther@suse.de>