Adds more SIMD instructions for ARM.

runtime/vm/simulator_arm.cc

Index: runtime/vm/simulator_arm.cc
===================================================================
--- runtime/vm/simulator_arm.cc	(revision 25291)
+++ runtime/vm/simulator_arm.cc	(working copy)
@@ -934,8 +934,9 @@
 
 
 void Simulator::get_qregister(QRegister reg, simd_value_t* value) const {
-  ASSERT((reg >= 0) && (reg < kNumberOfQRegisters));
-  *value = qregisters_[reg];
+  if ((reg >= 0) && (reg < kNumberOfQRegisters)) {

[regis, 2013/07/22 22:47:11]

Add a todo to replace the test by an assert after we support 16 Q registers
always. 

[zra, 2013/07/22 23:20:09]

Done.

+    *value = qregisters_[reg];
+  }
 }
 
 
@@ -3126,6 +3127,12 @@
           s8d.data_[i].u = s8n.data_[i].u | s8m.data_[i].u;
         }
       }
+    } else if ((instr->Bits(8, 4) == 1) && (instr->Bit(4) == 1) &&
+               (instr->Bits(20, 2) == 0) && (instr->Bits(23, 2) == 0)) {
+      // Format(instr, "vandq 'qd, 'qn, 'qm");
+      for (int i = 0; i < 4; i++) {
+        s8d.data_[i].u = s8n.data_[i].u & s8m.data_[i].u;
+      }
     } else if ((instr->Bits(8, 4) == 15) && (instr->Bit(4) == 0) &&
                (instr->Bits(20, 2) == 2) && (instr->Bits(23, 2) == 0)) {
       // Format(instr, "vminqs 'qd, 'qn, 'qm");
@@ -3140,6 +3147,20 @@
         s8d.data_[i].f =
           s8n.data_[i].f >= s8m.data_[i].f ? s8n.data_[i].f : s8m.data_[i].f;
       }
+    } else if ((instr->Bits(8, 4) == 7) && (instr->Bit(4) == 0) &&
+               (instr->Bits(20, 2) == 3) && (instr->Bits(23, 2) == 3) &&
+               (instr->Bit(7) == 0) && (instr->Bits(16, 4) == 9)) {
+      // Format(instr, "vabsqs 'qd, 'qm");
+      for (int i = 0; i < 4; i++) {
+        s8d.data_[i].f = abs(s8m.data_[i].f);
+      }
+    } else if ((instr->Bits(8, 4) == 7) && (instr->Bit(4) == 0) &&
+               (instr->Bits(20, 2) == 3) && (instr->Bits(23, 2) == 3) &&
+               (instr->Bit(7) == 1) && (instr->Bits(16, 4) == 9)) {
+      // Format(instr, "vnegqs 'qd, 'qm");
+      for (int i = 0; i < 4; i++) {
+        s8d.data_[i].f = -s8m.data_[i].f;
+      }
     } else if ((instr->Bits(7, 5) == 10) && (instr->Bit(4) == 0) &&
                (instr->Bits(20, 2) == 3) && (instr->Bits(23, 2) == 3) &&
                (instr->Bits(16, 4) == 11)) {