Instead of counting totally diagnostics, split the count into a count

of errors and warnings.  This allows us to emit something like this:

2 warnings and 1 error generated.

instead of:

3 diagnostics generated.

This also stops counting 'notes' because they are just follow-on information
about the previous diag, not a diagnostic in themselves.

llvm-svn: 100675

clang/include/clang/Basic/Diagnostic.h

@@ -211,8 +211,8 @@ private:
   /// diagnostic that they follow.
   Diagnostic::Level LastDiagLevel;
 
-  unsigned NumDiagnostics;    // Number of diagnostics reported
-  unsigned NumErrors;         // Number of diagnostics that are errors
+  unsigned NumWarnings;       // Number of warnings reported
+  unsigned NumErrors;         // Number of errors reported
 
   /// CustomDiagInfo - Information for uniquing and looking up custom diags.
   diag::CustomDiagInfo *CustomDiagInfo;
@@ -338,7 +338,7 @@ public:
   bool hasFatalErrorOccurred() const { return FatalErrorOccurred; }
 
   unsigned getNumErrors() const { return NumErrors; }
-  unsigned getNumDiagnostics() const { return NumDiagnostics; }
+  unsigned getNumWarnings() const { return NumWarnings; }
 
   /// getCustomDiagID - Return an ID for a diagnostic with the specified message
   /// and level.  If this is the first request for this diagnosic, it is

clang/lib/Basic/Diagnostic.cpp

@@ -223,8 +223,8 @@ Diagnostic::Diagnostic(DiagnosticClient *client) : Client(client) {
 
   ErrorOccurred = false;
   FatalErrorOccurred = false;
-  NumDiagnostics = 0;
   
+  NumWarnings = 0;
   NumErrors = 0;
   CustomDiagInfo = 0;
   CurDiagID = ~0U;
@@ -555,7 +555,10 @@ bool Diagnostic::ProcessDiag() {
 
   // Finally, report it.
   Client->HandleDiagnostic(DiagLevel, Info);
-  if (Client->IncludeInDiagnosticCounts()) ++NumDiagnostics;
+  if (Client->IncludeInDiagnosticCounts()) {
+    if (DiagLevel == Diagnostic::Warning)
+      ++NumWarnings;
+  }
 
   CurDiagID = ~0U;
 

clang/lib/Frontend/CompilerInstance.cpp

@@ -513,11 +513,19 @@ bool CompilerInstance::ExecuteAction(FrontendAction &Act) {
     }
   }
 
-  if (getDiagnosticOpts().ShowCarets)
-    if (unsigned NumDiagnostics = getDiagnostics().getNumDiagnostics())
-      OS << NumDiagnostics << " diagnostic"
-         << (NumDiagnostics == 1 ? "" : "s")
-         << " generated.\n";
+  if (getDiagnosticOpts().ShowCarets) {
+    unsigned NumWarnings = getDiagnostics().getNumWarnings();
+    unsigned NumErrors = getDiagnostics().getNumErrors();
+    
+    if (NumWarnings)
+      OS << NumWarnings << " warning" << (NumWarnings == 1 ? "" : "s");
+    if (NumWarnings && NumErrors)
+      OS << " and ";
+    if (NumErrors)
+      OS << NumErrors << " error" << (NumErrors == 1 ? "" : "s");
+    if (NumWarnings || NumErrors)
+      OS << " generated.\n";
+  }
 
   if (getFrontendOpts().ShowStats) {
     getFileManager().PrintStats();

clang/test/ASTMerge/category.m

@@ -6,4 +6,4 @@
 // CHECK: category1.m:16:1: note: instance method 'method2' also declared here
 // CHECK: category2.m:26:1: error: instance method 'method3' has incompatible result types in different translation units ('float' vs. 'int')
 // CHECK: category1.m:24:1: note: instance method 'method3' also declared here
-// CHECK: 4 diagnostics generated.
+// CHECK: 2 errors generated.

clang/test/ASTMerge/enum.c

@@ -22,4 +22,4 @@
 // CHECK: enum1.c:30:6: note: no corresponding enumerator here
 // CHECK: enum2.c:34:3: error: external variable 'x5' declared with incompatible types in different translation units ('enum E5' vs. 'enum E5')
 // CHECK: enum1.c:34:3: note: declared here with type 'enum E5'
-// CHECK: 20 diagnostics generated
+// CHECK: 4 warnings and 4 errors generated

clang/test/ASTMerge/function.c

@@ -6,4 +6,4 @@
 // CHECK: function1.c:2:6: note: declared here with type 'void (int, float)'
 // CHECK: function2.c:5:6: error: external function 'f3' declared with incompatible types in different translation units ('void (int)' vs. 'void (void)')
 // CHECK: function1.c:4:6: note: declared here with type 'void (void)'
-// CHECK: 4 diagnostics generated
+// CHECK: 2 errors generated

clang/test/ASTMerge/interface.m

@@ -15,5 +15,5 @@
 // CHECK: interface1.m:46:1: note: class method 'bar:' also declared here
 // CHECK: interface2.m:57:20: error: instance method 'bar:' has a parameter with a different types in different translation units ('double' vs. 'float')
 // CHECK: interface1.m:58:19: note: declared here with type 'float'
-// CHECK: 13 diagnostics generated
+// CHECK: 6 errors generated
 

clang/test/ASTMerge/property.m

@@ -6,4 +6,4 @@
 // CHECK: property1.m:10:28: note: declared here with type 'float'
 // CHECK: property2.m:12:26: error: instance method 'Prop1' has incompatible result types in different translation units ('int' vs. 'float')
 // CHECK: property1.m:10:28: note: instance method 'Prop1' also declared here
-// CHECK: 4 diagnostics generated.
+// CHECK: 2 errors generated.

clang/test/ASTMerge/struct.c

@@ -39,4 +39,4 @@
 // CHECK: struct2.c:53:43: note: field 'Deeper' has type 'struct DeeperError *' here
 // CHECK: struct2.c:54:3: error: external variable 'xDeep' declared with incompatible types in different translation units ('struct DeepError' vs. 'struct DeepError')
 // CHECK: struct1.c:57:3: note: declared here with type 'struct DeepError'
-// CHECK: 37 diagnostics
+// CHECK: 8 warnings and 7 errors generated

clang/test/ASTMerge/typedef.c

@@ -4,4 +4,4 @@
 
 // CHECK: typedef2.c:4:10: error: external variable 'x2' declared with incompatible types in different translation units ('Typedef2' (aka 'double') vs. 'Typedef2' (aka 'int'))
 // CHECK: typedef1.c:4:10: note: declared here with type 'Typedef2' (aka 'int')
-// CHECK: 2 diagnostics
+// CHECK: 1 error

clang/test/ASTMerge/var.c

@@ -9,4 +9,4 @@
 // CHECK: var1.h:1:8: note: declared here with type 'double'
 // CHECK: error: external variable 'xarray3' declared with incompatible types in different translation units ('int [17]' vs. 'int [18]')
 // CHECK: var1.c:7:5: note: declared here with type 'int [18]'
-// CHECK: 6 diagnostics
+// CHECK: 3 errors

clang/test/Analysis/nil-receiver-undefined-larger-than-voidptr-ret.m

@@ -77,6 +77,6 @@ int marker(void) { // control reaches end of non-void function
 // CHECK-darwin8: warning: The receiver of message 'doubleM' is nil and returns a value of type 'double' that will be garbage
 // CHECK-darwin8: warning: The receiver of message 'longlongM' is nil and returns a value of type 'long long' that will be garbage
 // CHECK-darwin8: control reaches end of non-void function
-// CHECK-darwin8: 5 diagnostics generated
+// CHECK-darwin8: 5 warnings generated
 // CHECK-darwin9: control reaches end of non-void function
-// CHECK-darwin9: 1 diagnostic generated
+// CHECK-darwin9: 1 warning generated

clang/test/Rewriter/dllimport-typedef.c

@@ -10,8 +10,8 @@ typedef __declspec(dllimport) int CB(void);
 void bar() { return 1; }
 
 // CHECK-NEG: warning: void function 'bar' should not return a value
-// CHECK-NEG: 1 diagnostic generated
+// CHECK-NEG: 1 warning generated
 // CHECK-POS: warning: 'dllimport' attribute only applies to variable and function type
 // CHECK-POS: warning: void function 'bar' should not return a value
-// CHECK-POS: 2 diagnostics generated
+// CHECK-POS: 2 warnings generated
 

clang/test/Rewriter/missing-dllimport.c

@@ -12,8 +12,8 @@ inline int __cdecl foo() { return 0; }
 void bar() { return 1; }
 
 // CHECK-NEG: warning: void function 'bar' should not return a value
-// CHECK-NEG: 1 diagnostic generated
+// CHECK-NEG: 1 warning generated
 // CHECK-POS: warning: 'foo' redeclared without dllimport attribute: previous dllimport ignored
 // CHECK-POS: warning: void function 'bar' should not return a value
-// CHECK-POS: 2 diagnostics generated
+// CHECK-POS: 2 warnings generated