Fix ARM emit() methods to count instructions generated.

src/IceAssemblerARM32.cpp

Index: src/IceAssemblerARM32.cpp
diff --git a/src/IceAssemblerARM32.cpp b/src/IceAssemblerARM32.cpp
index 1147f71898eb1a7d87d2546bbee21f83a04be2f4..3f7716fd3a5c1f1b0179ba98934a135183a20881 100644
--- a/src/IceAssemblerARM32.cpp
+++ b/src/IceAssemblerARM32.cpp
@@ -360,11 +360,14 @@ void AssemblerARM32::bind(Label *L) {
 }
 
 void AssemblerARM32::emitTextInst(const std::string &Text, SizeT InstSize) {
-  AssemblerBuffer::EnsureCapacity ensured(&Buffer);
   AssemblerFixup *F = createTextFixup(Text, InstSize);
   emitFixup(F);
-  for (SizeT I = 0; I < InstSize; ++I)
-    Buffer.emit<char>(0);
+  if (InstSize) {

[Jim Stichnoth, 2015/11/04 23:45:26]

Remove this?  It's redundant with the loop condition.

[Karl, 2015/11/05 16:18:40]

Done.

+    for (SizeT I = 0; I < InstSize; ++I) {
+      AssemblerBuffer::EnsureCapacity ensured(&Buffer);
+      Buffer.emit<char>(0);
+    }
+  }
 }
 
 void AssemblerARM32::emitType01(CondARM32::Cond Cond, IValueT Type,