Suppress diagnostics during name lookup for absolute value type.

llvm-svn: 203061

2 files changed, 14 insertions, 0 deletions

diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index 7bf1071d671..dd7cb5855f2 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -3817,6 +3817,7 @@ static void emitReplacement(Sema &S, SourceLocation Loc, SourceRange Range,
   // Look up absolute value function in TU scope.
   DeclarationName DN(&S.Context.Idents.get(AbsName));
   LookupResult R(S, DN, Loc, Sema::LookupAnyName);
+  R.suppressDiagnostics();
   S.LookupName(R, S.TUScope);
 
   // Skip notes if multiple results found in lookup.
diff --git a/clang/test/SemaCXX/warn-absolute-value2.cpp b/clang/test/SemaCXX/warn-absolute-value2.cpp
new file mode 100644
index 00000000000..2affcb18f0b
--- /dev/null
+++ b/clang/test/SemaCXX/warn-absolute-value2.cpp
@@ -0,0 +1,13 @@
+// RUN: %clang_cc1 -triple i686-pc-linux-gnu -fsyntax-only -verify %s -Wabsolute-value
+
+extern "C" {
+int abs(int);
+long labs(long);
+}
+
+using ::labs;
+
+long test(long x) {
+  return ::abs(x);
+  // expected-warning@-1{{using integer absolute value function 'abs' when argument is of floating point type}}
+}