[ARM] Add vand, vorr NEON instructions.

src/arm/assembler-arm.cc

Index: src/arm/assembler-arm.cc
diff --git a/src/arm/assembler-arm.cc b/src/arm/assembler-arm.cc
index 2eadd4f81e9cace85c722e86d0f545a75c7fa2e7..2ca523c0f61a2aeddd3f767e2dcff8f99984ecec 100644
--- a/src/arm/assembler-arm.cc
+++ b/src/arm/assembler-arm.cc
@@ -4135,7 +4135,7 @@ void Assembler::veor(DwVfpRegister dst, DwVfpRegister src1,
 
 void Assembler::veor(QwNeonRegister dst, QwNeonRegister src1,
                      QwNeonRegister src2) {
-  // Qd = veor(Qn, Qm) SIMD integer exclusive OR.
+  // Qd = veor(Qn, Qm) SIMD exclusive OR.
   // Instruction details available in ARM DDI 0406C.b, A8.8.888.
   DCHECK(IsEnabled(NEON));
   int vd, d;
@@ -4148,6 +4148,36 @@ void Assembler::veor(QwNeonRegister dst, QwNeonRegister src1,
        m * B5 | B4 | vm);
 }
 
+void Assembler::vand(QwNeonRegister dst, QwNeonRegister src1,

[martyn.capewell, 2017/01/11 13:47:44]

It would be good to factor these into a single function that can encode all of
the two register source bitwise operations: and, bic, bif, bit, bsl, eor, orr,
orn. They use bits 20, 21 and 24 to encode the eight operations.

[bbudge, 2017/01/12 10:53:18]

Great, thanks. The existing vbsl implementation was folded into this too. Done.

+                     QwNeonRegister src2) {
+  // Qd = vand(Qn, Qm) SIMD AND.
+  // Instruction details available in ARM DDI 0406C.b, A8.8.836.
+  DCHECK(IsEnabled(NEON));
+  int vd, d;
+  dst.split_code(&vd, &d);
+  int vn, n;
+  src1.split_code(&vn, &n);
+  int vm, m;
+  src2.split_code(&vm, &m);
+  emit(0x1E4U * B23 | d * B22 | vn * B16 | vd * B12 | B8 | n * B7 | B6 |
+       m * B5 | B4 | vm);
+}
+
+void Assembler::vorr(QwNeonRegister dst, QwNeonRegister src1,
+                     QwNeonRegister src2) {
+  // Qd = vorr(Qn, Qm) SIMD OR.
+  // Instruction details available in ARM DDI 0406C.b, A8.8.976.
+  DCHECK(IsEnabled(NEON));
+  int vd, d;
+  dst.split_code(&vd, &d);
+  int vn, n;
+  src1.split_code(&vn, &n);
+  int vm, m;
+  src2.split_code(&vm, &m);
+  emit(0x1E4U * B23 | d * B22 | B21 | vn * B16 | vd * B12 | B8 | n * B7 | B6 |
+       m * B5 | B4 | vm);
+}
+
 void Assembler::vadd(QwNeonRegister dst, const QwNeonRegister src1,
                      const QwNeonRegister src2) {
   DCHECK(IsEnabled(NEON));