commit 9aec02fc5df5518c16f1e5a9b6cb198a192db973
author Calin Juravle <calin@google.com> Tue Nov 18 23:06:35 2014 +0000
committer Calin Juravle <calin@google.com> Mon Nov 24 16:06:55 2014 +0000
tree fe924b37f395af1bb50f55ee6c87c66b727f00af
parent 20032e512c003a8f42735c4e1eca19c1472bb95e

[optimizing compiler] Add shifts

Added SHL, SHR, USHR for arm, x86, x86_64.

Change-Id: I971f594e270179457e6958acf1401ff7630df07e

compiler/utils/x86/assembler_x86.cc

diff --git a/compiler/utils/x86/assembler_x86.cc b/compiler/utils/x86/assembler_x86.cc
index afa4a3b..a297ea3 100644
--- a/compiler/utils/x86/assembler_x86.cc
+++ b/compiler/utils/x86/assembler_x86.cc
@@ -1126,7 +1126,8 @@
 }
 
 
-void X86Assembler::shld(Register dst, Register src) {
+void X86Assembler::shld(Register dst, Register src, Register shifter) {
+  DCHECK_EQ(ECX, shifter);
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0x0F);
   EmitUint8(0xA5);
@@ -1134,6 +1135,15 @@
 }
 
 
+void X86Assembler::shrd(Register dst, Register src, Register shifter) {
+  DCHECK_EQ(ECX, shifter);
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x0F);
+  EmitUint8(0xAD);
+  EmitRegisterOperand(src, dst);
+}
+
+
 void X86Assembler::negl(Register reg) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0xF7);

compiler/utils/x86/assembler_x86.h

diff --git a/compiler/utils/x86/assembler_x86.h b/compiler/utils/x86/assembler_x86.h
index 8aed934..6ea66a5 100644
--- a/compiler/utils/x86/assembler_x86.h
+++ b/compiler/utils/x86/assembler_x86.h
@@ -405,7 +405,8 @@
   void shrl(Register operand, Register shifter);
   void sarl(Register reg, const Immediate& imm);
   void sarl(Register operand, Register shifter);
-  void shld(Register dst, Register src);
+  void shld(Register dst, Register src, Register shifter);
+  void shrd(Register dst, Register src, Register shifter);
 
   void negl(Register reg);
   void notl(Register reg);