r372527 - [clang] [Basic] Enable __has_feature(leak_sanitizer)

[Michal Gorny via cfe-commits]

Author: mgorny
Date: Sun Sep 22 13:55:01 2019
New Revision: 372527

URL: http://llvm.org/viewvc/llvm-project?rev=372527&view=rev
Log:
[clang] [Basic] Enable __has_feature(leak_sanitizer)

Add a 'leak_sanitizer' feature akin to existing '*_sanitizer' features
to let programmers switch code paths accounting for leak sanitizers
being enabled.

Differential Revision: https://reviews.llvm.org/D67719

Added:
    cfe/trunk/test/Lexer/has_feature_leak_sanitizer.cpp
Modified:
    cfe/trunk/include/clang/Basic/Features.def

Modified: cfe/trunk/include/clang/Basic/Features.def
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/Features.def?rev=372527&r1=372526&r2=372527&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/Features.def (original)
+++ cfe/trunk/include/clang/Basic/Features.def Sun Sep 22 13:55:01 2019
@@ -39,6 +39,8 @@
 FEATURE(address_sanitizer,
         LangOpts.Sanitize.hasOneOf(SanitizerKind::Address |
                                    SanitizerKind::KernelAddress))
+FEATURE(leak_sanitizer,
+        LangOpts.Sanitize.has(SanitizerKind::Leak))
 FEATURE(hwaddress_sanitizer,
         LangOpts.Sanitize.hasOneOf(SanitizerKind::HWAddress |
                                    SanitizerKind::KernelHWAddress))

Added: cfe/trunk/test/Lexer/has_feature_leak_sanitizer.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Lexer/has_feature_leak_sanitizer.cpp?rev=372527&view=auto
==============================================================================
--- cfe/trunk/test/Lexer/has_feature_leak_sanitizer.cpp (added)
+++ cfe/trunk/test/Lexer/has_feature_leak_sanitizer.cpp Sun Sep 22 13:55:01 2019
@@ -0,0 +1,11 @@
+// RUN: %clang_cc1 -E -fsanitize=leak %s -o - | FileCheck --check-prefix=CHECK-LSAN %s
+// RUN: %clang_cc1 -E %s -o - | FileCheck --check-prefix=CHECK-NO-LSAN %s
+
+#if __has_feature(leak_sanitizer)
+int LeakSanitizerEnabled();
+#else
+int LeakSanitizerDisabled();
+#endif
+
+// CHECK-LSAN: LeakSanitizerEnabled
+// CHECK-NO-LSAN: LeakSanitizerDisabled