First step to cleanup the power-of-2 mess.

src/arm64/assembler-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
@@ skipping 15 matching lines @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #define ARM64_DEFINE_REG_STATICS
 
 #include "src/arm64/assembler-arm64-inl.h"
+#include "src/base/bits.h"
 #include "src/base/cpu.h"
 
 namespace v8 {
 namespace internal {
 
 
 // -----------------------------------------------------------------------------
 // CpuFeatures implementation.
 
 void CpuFeatures::ProbeImpl(bool cross_compile) {
@@ skipping 548 matching lines @@
     desc->buffer_size = buffer_size_;
     desc->instr_size = pc_offset();
     desc->reloc_size = (reinterpret_cast<byte*>(buffer_) + buffer_size_) -
                        reloc_info_writer.pos();
     desc->origin = this;
   }
 }
 
 
 void Assembler::Align(int m) {
-  DCHECK(m >= 4 && IsPowerOf2(m));
+  DCHECK(m >= 4 && base::bits::IsPowerOfTwo32(m));
   while ((pc_offset() & (m - 1)) != 0) {
     nop();
   }
 }
 
 
 void Assembler::CheckLabelLinkChain(Label const * label) {
 #ifdef DEBUG
   if (label->is_linked()) {
     int linkoffset = label->pos();
@@ skipping 1586 matching lines @@
   Emit(HLT | ImmException(code));
 }
 
 
 void Assembler::brk(int code) {
   DCHECK(is_uint16(code));
   Emit(BRK | ImmException(code));
 }
 
 
+void Assembler::EmitStringData(const char* string) {
+  size_t len = strlen(string) + 1;
+  DCHECK(RoundUp(len, kInstructionSize) <= static_cast<size_t>(kGap));
+  EmitData(string, len);
+  // Pad with NULL characters until pc_ is aligned.
+  const char pad[] = {'\0', '\0', '\0', '\0'};
+  STATIC_ASSERT(sizeof(pad) == kInstructionSize);
+  EmitData(pad, RoundUp(pc_offset(), kInstructionSize) - pc_offset());
+}
+
+
 void Assembler::debug(const char* message, uint32_t code, Instr params) {
 #ifdef USE_SIMULATOR
   // Don't generate simulator specific code if we are building a snapshot, which
   // might be run on real hardware.
   if (!serializer_enabled()) {
     // The arguments to the debug marker need to be contiguous in memory, so
     // make sure we don't try to emit pools.
     BlockPoolsScope scope(this);
 
     Label start;
@@ skipping 899 matching lines @@
   movz(scratch, (target_offset >> 16) & 0xFFFF, 16);
   movk(scratch, (target_offset >> 32) & 0xFFFF, 32);
   DCHECK((target_offset >> 48) == 0);
   add(rd, rd, scratch);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64