ARM: Fix ARM safepoint tables by ensuring that constant pools are not...

src/arm/assembler-arm.cc

Index: src/arm/assembler-arm.cc
===================================================================
--- src/arm/assembler-arm.cc	(revision 6341)
+++ src/arm/assembler-arm.cc	(working copy)
@@ -2495,6 +2495,10 @@
 
 
 void Assembler::db(uint8_t data) {
+  // No relocation info should be pending while using db. db is used
+  // to write pure data with no pointers and the constant pool should
+  // be emitted before using db.
+  ASSERT(num_prinfo_ == 0);
   CheckBuffer();
   *reinterpret_cast<uint8_t*>(pc_) = data;
   pc_ += sizeof(uint8_t);
@@ -2502,6 +2506,10 @@
 
 
 void Assembler::dd(uint32_t data) {
+  // No relocation info should be pending while using dd. dd is used
+  // to write pure data with no pointers and the constant pool should
+  // be emitted before using dd.
+  ASSERT(num_prinfo_ == 0);
   CheckBuffer();
   *reinterpret_cast<uint32_t*>(pc_) = data;
   pc_ += sizeof(uint32_t);