Author: pirama Date: Wed Aug 1 10:55:34 2018 New Revision: 338603 URL: http://llvm.org/viewvc/llvm-project?rev=338603&view=rev Log: [Android] Increase default new alignment for Android
Summary: Android's memory allocators also guarantee 8-byte alignment for 32-bit architectures and 16-byte alignment for 64-bit. Reviewers: rsmith Subscribers: cfe-commits, srhines, enh Differential Revision: https://reviews.llvm.org/D50112 Modified: cfe/trunk/lib/Basic/TargetInfo.cpp cfe/trunk/test/Preprocessor/init.c Modified: cfe/trunk/lib/Basic/TargetInfo.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/TargetInfo.cpp?rev=338603&r1=338602&r2=338603&view=diff ============================================================================== --- cfe/trunk/lib/Basic/TargetInfo.cpp (original) +++ cfe/trunk/lib/Basic/TargetInfo.cpp Wed Aug 1 10:55:34 2018 @@ -63,8 +63,9 @@ TargetInfo::TargetInfo(const llvm::Tripl MinGlobalAlign = 0; // From the glibc documentation, on GNU systems, malloc guarantees 16-byte // alignment on 64-bit systems and 8-byte alignment on 32-bit systems. See - // https://www.gnu.org/software/libc/manual/html_node/Malloc-Examples.html - if (T.isGNUEnvironment() || T.isWindowsMSVCEnvironment()) + // https://www.gnu.org/software/libc/manual/html_node/Malloc-Examples.html. + // This alignment guarantee also applies to Windows and Android. + if (T.isGNUEnvironment() || T.isWindowsMSVCEnvironment() || T.isAndroid()) NewAlign = Triple.isArch64Bit() ? 128 : Triple.isArch32Bit() ? 64 : 0; else NewAlign = 0; // Infer from basic type alignment. Modified: cfe/trunk/test/Preprocessor/init.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/init.c?rev=338603&r1=338602&r2=338603&view=diff ============================================================================== --- cfe/trunk/test/Preprocessor/init.c (original) +++ cfe/trunk/test/Preprocessor/init.c Wed Aug 1 10:55:34 2018 @@ -9019,7 +9019,7 @@ // ANDROID:#define __ANDROID__ 1 // // RUN: %clang_cc1 -x c++ -triple i686-linux-android -E -dM < /dev/null | FileCheck -match-full-lines -check-prefix I386-ANDROID-CXX %s -// I386-ANDROID-CXX:#define __STDCPP_DEFAULT_NEW_ALIGNMENT__ 4U +// I386-ANDROID-CXX:#define __STDCPP_DEFAULT_NEW_ALIGNMENT__ 8U // // RUN: %clang_cc1 -x c++ -triple x86_64-linux-android -E -dM < /dev/null | FileCheck -match-full-lines -check-prefix X86_64-ANDROID-CXX %s // X86_64-ANDROID-CXX:#define __STDCPP_DEFAULT_NEW_ALIGNMENT__ 16UL _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
