Index: cfe/trunk/lib/Driver/SanitizerArgs.cpp =================================================================== --- cfe/trunk/lib/Driver/SanitizerArgs.cpp +++ cfe/trunk/lib/Driver/SanitizerArgs.cpp @@ -504,7 +504,7 @@ // 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; Index: cfe/trunk/test/Driver/fsanitize-coverage.c =================================================================== --- cfe/trunk/test/Driver/fsanitize-coverage.c +++ cfe/trunk/test/Driver/fsanitize-coverage.c @@ -95,3 +95,15 @@ // CLANG-CL-COVERAGE-NOT: unknown argument // CLANG-CL-COVERAGE: -fsanitize-coverage-type=1 // CLANG-CL-COVERAGE: -fsanitize=address + +// RUN: %clang -target x86_64-linux-gnu -fsanitize=safe-stack -fsanitize-coverage=trace-pc-guard %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-VS-SAFESTACK +// CHECK-VS-SAFESTACK: -fsanitize=safe-stack +// CHECK-VS-SAFESTACK-NOT: -fsanitize-coverage-trace-pc-guard + +// RUN: %clang -target x86_64-linux-gnu -fsanitize=safe-stack -fsanitize-coverage=trace-pc-guard -fno-sanitize=safe-stack %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-SAFESTACK +// CHECK-NO-SAFESTACK-NOT: error: +// CHECK-NO-SAFESTACK-NOT: warning: +// CHECK-NO-SAFESTACK-NOT: argument unused +// CHECK-NO-SAFESTACK-NOT: unknown argument +// CHECK-NO-SAFESTACK-NOT: -fsanitize=safe-stack +// CHECK-NO-SAFESTACK: -fsanitize-coverage-trace-pc-guard