[libFuzzer] allow -fsanitize-coverage=0 (disables all coverage)

llvm-svn: 262503

diff --git a/clang/lib/Driver/SanitizerArgs.cpp b/clang/lib/Driver/SanitizerArgs.cpp
index 9b60407..e4e6c02 100644 (file)
--- a/clang/lib/Driver/SanitizerArgs.cpp
+++ b/clang/lib/Driver/SanitizerArgs.cpp
@@ -446,9 +446,8 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC,
           LegacySanitizeCoverage >= 0 && LegacySanitizeCoverage <= 4) {
         switch (LegacySanitizeCoverage) {
         case 0:
-          D.Diag(diag::warn_drv_deprecated_arg) << Arg->getAsString(Args)
-                                                << "-fsanitize-coverage=";
           CoverageFeatures = 0;
+          Arg->claim();
           break;
         case 1:
           D.Diag(diag::warn_drv_deprecated_arg) << Arg->getAsString(Args)

diff --git a/clang/test/Driver/fsanitize-coverage.c b/clang/test/Driver/fsanitize-coverage.c
index 3bb5deb..19b4af4 100644 (file)
--- a/clang/test/Driver/fsanitize-coverage.c
+++ b/clang/test/Driver/fsanitize-coverage.c
@@ -2,6 +2,7 @@
 // RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fsanitize-coverage=edge -fsanitize-coverage=0 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-0
 // 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-type
+// CHECK-SANITIZE-COVERAGE-0: -fsanitize=address
 
 // RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fsanitize-coverage=func %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-FUNC
 // RUN: %clang -target x86_64-linux-gnu -fsanitize=memory -fsanitize-coverage=func %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-FUNC
@@ -21,6 +22,10 @@
 // CHECK-SANITIZE-COVERAGE-FUNC_INDIR: fsanitize-coverage-type=3
 // CHECK-SANITIZE-COVERAGE-FUNC_INDIR: fsanitize-coverage-indirect-calls
 
+// RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fsanitize-coverage=1 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-1
+// CHECK-SANITIZE-COVERAGE-1: warning: argument '-fsanitize-coverage=1' is deprecated, use '-fsanitize-coverage=func' instead
+// RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fsanitize-coverage=2 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-2
+// CHECK-SANITIZE-COVERAGE-2: warning: argument '-fsanitize-coverage=2' is deprecated, use '-fsanitize-coverage=bb' instead
 // RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fsanitize-coverage=3 %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANITIZE-COVERAGE-3
 // CHECK-SANITIZE-COVERAGE-3: warning: argument '-fsanitize-coverage=3' is deprecated, use '-fsanitize-coverage=edge' instead
 //