Move CompileOptions -> CodeGenOptions, and sink it into the CodeGen library.

This resolves the layering violation where CodeGen depended on Frontend.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86998 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 82 insertions, 0 deletions

diff --git a/include/clang/CodeGen/CodeGenOptions.h b/include/clang/CodeGen/CodeGenOptions.h
new file mode 100644
index 0000000000..c076ec095f
--- /dev/null
+++ b/include/clang/CodeGen/CodeGenOptions.h
@@ -0,0 +1,82 @@
+//===--- CodeGenOptions.h ---------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file defines the CodeGenOptions interface.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_CODEGEN_CODEGENOPTIONS_H
+#define LLVM_CLANG_CODEGEN_CODEGENOPTIONS_H
+
+#include <string>
+#include <vector>
+
+namespace clang {
+
+/// CodeGenOptions - Track various options which control how the code
+/// is optimized and passed to the backend.
+class CodeGenOptions {
+public:
+  enum InliningMethod {
+    NoInlining,         // Perform no inlining whatsoever.
+    NormalInlining,     // Use the standard function inlining pass.
+    OnlyAlwaysInlining  // Only run the always inlining pass.
+  };
+
+  unsigned OptimizationLevel : 3; /// The -O[0-4] option specified.
+  unsigned OptimizeSize      : 1; /// If -Os is specified.
+  unsigned DebugInfo         : 1; /// Should generate deubg info (-g).
+  unsigned UnitAtATime       : 1; /// Unused. For mirroring GCC
+                                  /// optimization selection.
+  unsigned SimplifyLibCalls  : 1; /// Should standard library calls be
+                                  /// treated specially.
+  unsigned UnrollLoops       : 1; /// Control whether loops are unrolled.
+  unsigned VerifyModule      : 1; /// Control whether the module
+                                  /// should be run through the LLVM Verifier.
+  unsigned TimePasses        : 1; /// Set when -ftime-report is enabled.
+  unsigned NoCommon          : 1; /// Set when -fno-common or C++ is enabled.
+  unsigned DisableRedZone    : 1; /// Set when -mno-red-zone is enabled.
+  unsigned NoImplicitFloat   : 1; /// Set when -mno-implicit-float is enabled.
+  unsigned MergeAllConstants : 1; /// Merge identical constants.
+  unsigned DisableLLVMOpts   : 1; /// Don't run any optimizations, for use in
+                                  /// getting .bc files that correspond to the
+                                  /// internal state before optimizations are
+                                  /// done.
+
+  /// Inlining - The kind of inlining to perform.
+  InliningMethod Inlining;
+
+  /// CPU - An optional CPU to target.
+  std::string CPU;
+
+  /// Features - A list of subtarget features to pass to the code
+  /// generator.
+  std::vector<std::string> Features;
+
+public:
+  CodeGenOptions() {
+    OptimizationLevel = 0;
+    OptimizeSize = 0;
+    DebugInfo = 0;
+    UnitAtATime = 1;
+    SimplifyLibCalls = UnrollLoops = 0;
+    VerifyModule = 1;
+    TimePasses = 0;
+    NoCommon = 0;
+    Inlining = NoInlining;
+    DisableRedZone = 0;
+    NoImplicitFloat = 0;
+    MergeAllConstants = 1;
+    DisableLLVMOpts = 0;
+  }
+};
+
+}  // end namespace clang
+
+#endif