[Driver] Consider -fno-sanitize=... state when filtering out -fsanitize-coverage=...

The driver ignores -fsanitize-coverage=... flags when also given
-fsanitize=... flags for sanitizer flavors that don't support the
coverage runtime. This logic failed to account for subsequent
-fno-sanitize=... flags that disable the sanitizer flavors that
conflict with -fsanitize-coverage=... flags.

Patch by Roland McGrath

Differential Revision: https://reviews.llvm.org/D35603

llvm-svn: 308707

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/lib/Driver/SanitizerArgs.cpp b/clang/lib/Driver/SanitizerArgs.cpp
index 7a442c83e15..f11917439b8 100644
--- a/clang/lib/Driver/SanitizerArgs.cpp
+++ b/clang/lib/Driver/SanitizerArgs.cpp
@@ -504,7 +504,7 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC,
 
       // Disable coverage and not claim the flags if there is at least one
       // non-supporting sanitizer.
-      if (!(AllAddedKinds & ~setGroupBits(SupportsCoverage))) {
+      if (!(AllAddedKinds & ~AllRemove & ~setGroupBits(SupportsCoverage))) {
         Arg->claim();
       } else {
         CoverageFeatures = 0;