Add LLVMContext::emitWarning methods and use them. <rdar://problem/12867368>

When the backend is used from clang, it should produce proper diagnostics
instead of just printing messages to errs(). Other clients may also want to
register their own error handlers with the LLVMContext, and the same handler
should work for warnings in the same way as the existing emitError methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171041 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 9 insertions, 8 deletions

diff --git a/lib/Analysis/ProfileInfoLoaderPass.cpp b/lib/Analysis/ProfileInfoLoaderPass.cpp
index 2f3486cb44..8e6d1c2ecb 100644
--- a/lib/Analysis/ProfileInfoLoaderPass.cpp
+++ b/lib/Analysis/ProfileInfoLoaderPass.cpp
@@ -19,6 +19,7 @@
 #include "llvm/Analysis/ProfileInfoLoader.h"
 #include "llvm/BasicBlock.h"
 #include "llvm/InstrTypes.h"
+#include "llvm/LLVMContext.h"
 #include "llvm/Module.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/CFG.h"
@@ -170,8 +171,8 @@ bool LoaderPass::runOnModule(Module &M) {
       }
     }
     if (ReadCount != Counters.size()) {
-      errs() << "WARNING: profile information is inconsistent with "
-             << "the current program!\n";
+      M.getContext().emitWarning("profile information is inconsistent "
+                                 "with the current program");
     }
     NumEdgesRead = ReadCount;
   }
@@ -218,8 +219,8 @@ bool LoaderPass::runOnModule(Module &M) {
       }
     }
     if (ReadCount != Counters.size()) {
-      errs() << "WARNING: profile information is inconsistent with "
-             << "the current program!\n";
+      M.getContext().emitWarning("profile information is inconsistent "
+                                 "with the current program");
     }
     NumEdgesRead = ReadCount;
   }
@@ -239,8 +240,8 @@ bool LoaderPass::runOnModule(Module &M) {
           BlockInformation[F][BB] = (double)Counters[ReadCount++];
     }
     if (ReadCount != Counters.size()) {
-      errs() << "WARNING: profile information is inconsistent with "
-             << "the current program!\n";
+      M.getContext().emitWarning("profile information is inconsistent "
+                                 "with the current program");
     }
   }
 
@@ -258,8 +259,8 @@ bool LoaderPass::runOnModule(Module &M) {
         FunctionInformation[F] = (double)Counters[ReadCount++];
     }
     if (ReadCount != Counters.size()) {
-      errs() << "WARNING: profile information is inconsistent with "
-             << "the current program!\n";
+      M.getContext().emitWarning("profile information is inconsistent "
+                                 "with the current program");
     }
   }