Add TST(register, immediate) to ARM32 integrated assembler.

src/IceInstARM32.cpp

Index: src/IceInstARM32.cpp
diff --git a/src/IceInstARM32.cpp b/src/IceInstARM32.cpp
index 4d8bccfbb0289b61acae88d084648e959574853b..cd50eb17de29d3b5a4c440a3c43467274972e59e 100644
--- a/src/IceInstARM32.cpp
+++ b/src/IceInstARM32.cpp
@@ -527,6 +527,14 @@ template <> void InstARM32Cmp::emitIAS(const Cfg *Func) const {
     emitUsingTextFixup(Func);
 }
 
+template <> void InstARM32Tst::emitIAS(const Cfg *Func) const {
+  assert(getSrcSize() == 2);
+  ARM32::AssemblerARM32 *Asm = Func->getAssembler<ARM32::AssemblerARM32>();
+  Asm->tst(getSrc(0), getSrc(1), getPredicate());
+  if (Asm->needsTextFixup())
+    emitUsingTextFixup(Func);
+}
+
 InstARM32Vcmp::InstARM32Vcmp(Cfg *Func, Variable *Src0, Variable *Src1,
                              CondARM32::Cond Predicate)
     : InstARM32Pred(Func, InstARM32::Vcmp, 2, nullptr, Predicate) {