Replace NULL with nullptr

Also fixed some lines that were too long, and a few other minor
details.

Change-Id: I6efba5fb6e03eb5d0a300fddb2a75bf8e2f175cb
diff --git a/runtime/arch/x86/context_x86.h b/runtime/arch/x86/context_x86.h
index ace4670..a783d48 100644
--- a/runtime/arch/x86/context_x86.h
+++ b/runtime/arch/x86/context_x86.h
@@ -92,7 +92,7 @@
     XMM7_0, XMM7_1,
     kNumberOfFloatRegisters};
 
-  // Pointers to register locations. Values are initialized to NULL or the special registers below.
+  // Pointers to register locations. Values are initialized to null or the special registers below.
   uintptr_t* gprs_[kNumberOfCpuRegisters];
   uint32_t* fprs_[kNumberOfFloatRegisters];
   // Hold values for esp and eip if they are not located within a stack frame. EIP is somewhat
diff --git a/runtime/arch/x86/entrypoints_init_x86.cc b/runtime/arch/x86/entrypoints_init_x86.cc
index c012173..a371632 100644
--- a/runtime/arch/x86/entrypoints_init_x86.cc
+++ b/runtime/arch/x86/entrypoints_init_x86.cc
@@ -96,17 +96,6 @@
   qpoints->pUnlockObject = art_quick_unlock_object;
 
   // Math
-  // points->pCmpgDouble = NULL;  // Not needed on x86.
-  // points->pCmpgFloat = NULL;  // Not needed on x86.
-  // points->pCmplDouble = NULL;  // Not needed on x86.
-  // points->pCmplFloat = NULL;  // Not needed on x86.
-  // qpoints->pFmod = NULL;  // Not needed on x86.
-  // qpoints->pL2d = NULL;  // Not needed on x86.
-  // qpoints->pFmodf = NULL;  // Not needed on x86.
-  // qpoints->pL2f = NULL;  // Not needed on x86.
-  // points->pD2iz = NULL;  // Not needed on x86.
-  // points->pF2iz = NULL;  // Not needed on x86.
-  // qpoints->pIdivmod = NULL;  // Not needed on x86.
   qpoints->pD2l = art_quick_d2l;
   qpoints->pF2l = art_quick_f2l;
   qpoints->pLdiv = art_quick_ldiv;
@@ -125,11 +114,16 @@
   qpoints->pQuickImtConflictTrampoline = art_quick_imt_conflict_trampoline;
   qpoints->pQuickResolutionTrampoline = art_quick_resolution_trampoline;
   qpoints->pQuickToInterpreterBridge = art_quick_to_interpreter_bridge;
-  qpoints->pInvokeDirectTrampolineWithAccessCheck = art_quick_invoke_direct_trampoline_with_access_check;
-  qpoints->pInvokeInterfaceTrampolineWithAccessCheck = art_quick_invoke_interface_trampoline_with_access_check;
-  qpoints->pInvokeStaticTrampolineWithAccessCheck = art_quick_invoke_static_trampoline_with_access_check;
-  qpoints->pInvokeSuperTrampolineWithAccessCheck = art_quick_invoke_super_trampoline_with_access_check;
-  qpoints->pInvokeVirtualTrampolineWithAccessCheck = art_quick_invoke_virtual_trampoline_with_access_check;
+  qpoints->pInvokeDirectTrampolineWithAccessCheck =
+      art_quick_invoke_direct_trampoline_with_access_check;
+  qpoints->pInvokeInterfaceTrampolineWithAccessCheck =
+      art_quick_invoke_interface_trampoline_with_access_check;
+  qpoints->pInvokeStaticTrampolineWithAccessCheck =
+      art_quick_invoke_static_trampoline_with_access_check;
+  qpoints->pInvokeSuperTrampolineWithAccessCheck =
+      art_quick_invoke_super_trampoline_with_access_check;
+  qpoints->pInvokeVirtualTrampolineWithAccessCheck =
+      art_quick_invoke_virtual_trampoline_with_access_check;
 
   // Thread
   qpoints->pTestSuspend = art_quick_test_suspend;
diff --git a/runtime/arch/x86/fault_handler_x86.cc b/runtime/arch/x86/fault_handler_x86.cc
index 8712506..2de69aa 100644
--- a/runtime/arch/x86/fault_handler_x86.cc
+++ b/runtime/arch/x86/fault_handler_x86.cc
@@ -240,7 +240,7 @@
   // this code the same for both 32 and 64 bit.
 
   Thread* self = Thread::Current();
-  CHECK(self != nullptr);       // This will cause a SIGABRT if self is nullptr.
+  CHECK(self != nullptr);  // This will cause a SIGABRT if self is null.
 
   struct ucontext* uc = reinterpret_cast<struct ucontext*>(context);
   uc->CTX_JMP_BUF = reinterpret_cast<uintptr_t>(*self->GetNestedSignalState());
diff --git a/runtime/arch/x86/quick_entrypoints_x86.S b/runtime/arch/x86/quick_entrypoints_x86.S
index c5a020a..c5d8b8f 100644
--- a/runtime/arch/x86/quick_entrypoints_x86.S
+++ b/runtime/arch/x86/quick_entrypoints_x86.S
@@ -285,7 +285,7 @@
      * The helper will attempt to locate the target and return a 64-bit result in r0/r1 consisting
      * of the target Method* in r0 and method->code_ in r1.
      *
-     * If unsuccessful, the helper will return NULL/NULL. There will bea pending exception in the
+     * If unsuccessful, the helper will return null/null will bea pending exception in the
      * thread and we branch to another stub to deliver it.
      *
      * On success this wrapper will restore arguments and *jump* to the target, leaving the lr
@@ -408,7 +408,7 @@
      * On entry:
      *   [sp] = return address
      *   [sp + 4] = method pointer
-     *   [sp + 8] = argument array or NULL for no argument methods
+     *   [sp + 8] = argument array or null for no argument methods
      *   [sp + 12] = size of argument array in bytes
      *   [sp + 16] = (managed) thread pointer
      *   [sp + 20] = JValue* result
@@ -442,7 +442,7 @@
     subl LITERAL(20), %ebx        // remove space for return address, ebx, ebp, esi and edi
     subl %ebx, %esp               // reserve stack space for argument array
 
-    movl LITERAL(0), (%esp)       // store NULL for method*
+    movl LITERAL(0), (%esp)       // store null for method*
 
     // Copy arg array into stack.
     movl 28(%ebp), %ecx           // ECX = size of args
@@ -506,7 +506,7 @@
      * On entry:
      *   [sp] = return address
      *   [sp + 4] = method pointer
-     *   [sp + 8] = argument array or NULL for no argument methods
+     *   [sp + 8] = argument array or null for no argument methods
      *   [sp + 12] = size of argument array in bytes
      *   [sp + 16] = (managed) thread pointer
      *   [sp + 20] = JValue* result
@@ -539,7 +539,7 @@
     subl LITERAL(20), %ebx        // remove space for return address, ebx, ebp, esi and edi
     subl %ebx, %esp               // reserve stack space for argument array
 
-    movl LITERAL(0), (%esp)       // store NULL for method*
+    movl LITERAL(0), (%esp)       // store null for method*
 
     // Copy arg array into stack.
     movl 28(%ebp), %ecx           // ECX = size of args
@@ -1352,7 +1352,7 @@
     call SYMBOL(artQuickResolutionTrampoline) // (Method* called, receiver, Thread*, SP)
     movl %eax, %edi               // remember code pointer in EDI
     addl LITERAL(16), %esp        // pop arguments
-    test %eax, %eax               // if code pointer is NULL goto deliver pending exception
+    test %eax, %eax               // if code pointer is null goto deliver pending exception
     jz 1f
     RESTORE_REFS_AND_ARGS_CALLEE_SAVE_FRAME_AND_JUMP
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