[msan] allow -fsanitize-coverage=N together with -fsanitize=memory, clang part

llvm-svn: 223311

diff --git a/clang/lib/Driver/SanitizerArgs.cpp b/clang/lib/Driver/SanitizerArgs.cpp
index 1e7487f..4d288f7 100644 (file)
--- a/clang/lib/Driver/SanitizerArgs.cpp
+++ b/clang/lib/Driver/SanitizerArgs.cpp
@@ -298,7 +298,7 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC,
   }
 
   // Parse -fsanitize-coverage=N
-  if (NeedsAsan) {  // Currently asan is required.
+  if (NeedsAsan || NeedsMsan) {  // Currently asan or msan is required.
     if (Arg *A = Args.getLastArg(options::OPT_fsanitize_coverage)) {
       StringRef S = A->getValue();
       // Legal values are 0..4.

diff --git a/clang/test/Driver/fsanitize.c b/clang/test/Driver/fsanitize.c
index e8e91dc..45f8ff0 100644 (file)
--- a/clang/test/Driver/fsanitize.c
+++ b/clang/test/Driver/fsanitize.c
@@ -84,6 +84,7 @@
 // RUN: %clang -target x86_64-linux-gnu -fsanitize=address                       %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-0
 // CHECK-SANITIZE-COVERAGE-0-NOT: fsanitize-coverage
 // RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fsanitize-coverage=1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-1
+// RUN: %clang -target x86_64-linux-gnu -fsanitize=memory -fsanitize-coverage=1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-1
 // CHECK-SANITIZE-COVERAGE-1: fsanitize-coverage=1
 // RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fsanitize-coverage=4 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-4
 // CHECK-SANITIZE-COVERAGE-4: fsanitize-coverage=4