From f46acdf87a6a3061828dc153f196e0588c7ec1db Mon Sep 17 00:00:00 2001
From: water <awaterford111445@gmail.com>
Date: Sun, 13 Sep 2020 12:11:49 -0400
Subject: [PATCH] what is going on with clang format

---
 goalc/compiler/Compiler.h            |  1 +
 goalc/compiler/IR.h                  | 18 +++++++++++++++++
 goalc/compiler/compilation/Atoms.cpp |  2 +-
 goalc/compiler/compilation/Math.cpp  | 29 ++++++++++++++++++++++++++++
 4 files changed, 49 insertions(+), 1 deletion(-)

diff --git a/goalc/compiler/Compiler.h b/goalc/compiler/Compiler.h
index d77bd0df34..2dbfb5386b 100644
--- a/goalc/compiler/Compiler.h
+++ b/goalc/compiler/Compiler.h
@@ -136,6 +136,7 @@ class Compiler {
   Val* compile_add(const goos::Object& form, const goos::Object& rest, Env* env);
   Val* compile_sub(const goos::Object& form, const goos::Object& rest, Env* env);
   Val* compile_mul(const goos::Object& form, const goos::Object& rest, Env* env);
+  Val* compile_div(const goos::Object& form, const goos::Object& rest, Env* env);
 
   // Function
   Val* compile_lambda(const goos::Object& form, const goos::Object& rest, Env* env);
diff --git a/goalc/compiler/IR.h b/goalc/compiler/IR.h
index 635005e391..cd9a59ae64 100644
--- a/goalc/compiler/IR.h
+++ b/goalc/compiler/IR.h
@@ -221,4 +221,22 @@ class IR_IntegerMath : public IR {
   RegVal* m_arg;
 };
 
+enum class FloatMathKind { DIV_SS };
+
+class IR_FloatMath : public IR {
+ public:
+  IR_FloatMath(FloatMathKind kind, RegVal* dest, RegVal* arg);
+  std::string print() override;
+  RegAllocInstr to_rai() override;
+  void do_codegen(emitter::ObjectGenerator* gen,
+                  const AllocationResult& allocs,
+                  emitter::IR_Record irec) override;
+  FloatMathKind get_kind() const { return m_kind; }
+
+ protected:
+  FloatMathKind m_kind;
+  RegVal* m_dest;
+  RegVal* m_arg;
+};
+
 #endif  // JAK_IR_H
diff --git a/goalc/compiler/compilation/Atoms.cpp b/goalc/compiler/compilation/Atoms.cpp
index bfc4cc7ef9..e66d14065b 100644
--- a/goalc/compiler/compilation/Atoms.cpp
+++ b/goalc/compiler/compilation/Atoms.cpp
@@ -101,7 +101,7 @@ static const std::unordered_map<
         {"+", &Compiler::compile_add},
         {"-", &Compiler::compile_sub},
         {"*", &Compiler::compile_mul},
-        //        {"/", &Compiler::compile_divide},
+        {"/", &Compiler::compile_div},
         //        {"shlv", &Compiler::compile_shlv},
         //        {"shrv", &Compiler::compile_shrv},
         //        {"sarv", &Compiler::compile_sarv},
diff --git a/goalc/compiler/compilation/Math.cpp b/goalc/compiler/compilation/Math.cpp
index d9bba8916f..2fa8634058 100644
--- a/goalc/compiler/compilation/Math.cpp
+++ b/goalc/compiler/compilation/Math.cpp
@@ -203,4 +203,33 @@ Val* Compiler::compile_sub(const goos::Object& form, const goos::Object& rest, E
   }
   assert(false);
   return get_none();
+}
+
+Val* Compiler::compile_div(const goos::Object& form, const goos::Object& rest, Env* env) {
+  auto args = get_va(form, rest);
+  if (!args.named.empty() || args.unnamed.size() != 2) {
+    throw_compile_error(form, "Invalid / form");
+  }
+
+  auto first_val = compile_error_guard(args.unnamed.at(0), env);
+  auto first_type = first_val->type();
+  auto math_type = get_math_mode(first_type);
+  switch (math_type) {
+    case MATH_FLOAT:
+
+    {
+      auto result = env->make_xmm(first_type);
+      env->emit(std::make_unique<IR_RegSet>(result, first_val->to_xmm(env)));
+      env->emit(std::make_unique<IR_FloatMath>(FloatMathKind::DIV_SS, result, to_math_type(compile_error_guard(args.unnamed.at(1), env), math_type, env)->to_xmm(env))));
+    }
+
+    case MATH_INVALID:
+      throw_compile_error(
+          form, "Cannot determine the math mode for object of type " + first_type.print());
+      break;
+    default:
+      assert(false);
+  }
+  assert(false);
+  return get_none();
 }
\ No newline at end of file