The TargetData is not used for the isPowerOfTwo determination. It has never

[oota-llvm.git] / include / llvm / Analysis / Verifier.h

diff --git a/include/llvm/Analysis/Verifier.h b/include/llvm/Analysis/Verifier.h
index 0742ad005ca2cf7fadbd8ab1e47d56fc4b218c06..ce8aeef07645b62ea51d2b31213b3a40dd8e2d86 100644 (file)
--- a/include/llvm/Analysis/Verifier.h
+++ b/include/llvm/Analysis/Verifier.h
@@ -1,4 +1,11 @@
-//===-- llvm/Analysis/Verifier.h - Module Verifier ---------------*- C++ -*-==//
+//===-- llvm/Analysis/Verifier.h - LLVM IR Verifier -------------*- 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 function verifier interface, that can be used for some
 // sanity checking of input to the system, and for checking that transformations
@@ -14,23 +21,55 @@
 #ifndef LLVM_ANALYSIS_VERIFIER_H
 #define LLVM_ANALYSIS_VERIFIER_H
 
-class Pass;
+#include <string>
+
+namespace llvm {
+
+class FunctionPass;
 class Module;
 class Function;
 
-// createVerifierPass - Check a module or function for validity.  If errors are
-// detected, error messages corresponding to the problem are printed to stderr.
-//
-Pass *createVerifierPass();
+/// @brief An enumeration to specify the action to be taken if errors found.
+///
+/// This enumeration is used in the functions below to indicate what should
+/// happen if the verifier finds errors. Each of the functions that uses
+/// this enumeration as an argument provides a default value for it. The
+/// actions are listed below.
+enum VerifierFailureAction {
+  AbortProcessAction,   ///< verifyModule will print to stderr and abort()
+  PrintMessageAction,   ///< verifyModule will print to stderr and return true
+  ReturnStatusAction    ///< verifyModule will just return true
+};
 
-// verifyModule - Check a module for errors, printing messages on stderr.
-// Return true if the module is corrupt.  This should only be used for
-// debugging, because it plays games with PassManagers and stuff.
-//
-bool verifyModule(const Module &M);
+/// @brief Create a verifier pass.
+///
+/// Check a module or function for validity.  When the pass is used, the
+/// action indicated by the \p action argument will be used if errors are
+/// found.
+FunctionPass *createVerifierPass(
+  VerifierFailureAction action = AbortProcessAction ///< Action to take
+);
+
+/// @brief Check a module for errors.
+///
+/// If there are no errors, the function returns false. If an error is found,
+/// the action taken depends on the \p action parameter.
+/// This should only be used for debugging, because it plays games with
+/// PassManagers and stuff.
+
+bool verifyModule(
+  const Module &M,  ///< The module to be verified
+  VerifierFailureAction action = AbortProcessAction, ///< Action to take
+  std::string *ErrorInfo = 0      ///< Information about failures.
+);
 
 // verifyFunction - Check a function for errors, useful for use when debugging a
 // pass.
-bool verifyFunction(const Function &F);
+bool verifyFunction(
+  const Function &F,  ///< The function to be verified
+  VerifierFailureAction action = AbortProcessAction ///< Action to take
+);
+
+} // End llvm namespace
 
 #endif