Always log the value when an alignment check fails.

And move checking that the alignment is a power of two to compile-time.

Change-Id: I551f364af05912958ed2d4d095b1ce35b6abaf6e
diff --git a/src/assembler_arm.cc b/src/assembler_arm.cc
index e1976d7..ac39f2e 100644
--- a/src/assembler_arm.cc
+++ b/src/assembler_arm.cc
@@ -1091,7 +1091,7 @@
 int32_t ArmAssembler::EncodeBranchOffset(int offset, int32_t inst) {
   // The offset is off by 8 due to the way the ARM CPUs read PC.
   offset -= 8;
-  CHECK(IsAligned(offset, 4));
+  CHECK_ALIGNED(offset, 4);
   CHECK(IsInt(CountOneBits(kBranchOffsetMask), offset));
 
   // Properly preserve only the bits supported in the instruction.
@@ -1423,7 +1423,7 @@
 
 void ArmAssembler::BuildFrame(size_t frame_size, ManagedRegister method_reg,
                               const std::vector<ManagedRegister>& callee_save_regs) {
-  CHECK(IsAligned(frame_size, kStackAlignment));
+  CHECK_ALIGNED(frame_size, kStackAlignment);
   CHECK_EQ(R0, method_reg.AsArm().AsCoreRegister());
 
   // Push callee saves and link register
@@ -1447,7 +1447,7 @@
 
 void ArmAssembler::RemoveFrame(size_t frame_size,
                               const std::vector<ManagedRegister>& callee_save_regs) {
-  CHECK(IsAligned(frame_size, kStackAlignment));
+  CHECK_ALIGNED(frame_size, kStackAlignment);
   // Compute callee saves to pop and PC
   RegList pop_list = 1 << PC;
   size_t pop_values = 1;