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llvm-project/clang/test/Driver/emulated-tls.cpp

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[Driver] Pass -f[no-]emulated-tls and set up ExplicitEmulatedTLS Since LLVM r326341, default EmulatedTLS mode is decided in backend according to target triple. Any front-end should pass -f[no]-emulated-tls to backend and set up ExplicitEmulatedTLS only when the flags are used. Differential Revision: https://reviews.llvm.org/D43965 llvm-svn: 326499
2018-03-02 06:26:19 +08:00
// Android, Cygwin and OpenBSD use emutls by default.
// Clang should pass -femulated-tls or -fno-emulated-tls to cc1 if they are used,
// and cc1 should set up EmulatedTLS and ExplicitEmulatedTLS to LLVM CodeGen.
//
// RUN: %clang -### -target arm-linux-androideabi %s 2>&1 \
// RUN: | FileCheck -check-prefix=DEFAULT %s
// RUN: %clang -### -target arm-linux-gnu %s 2>&1 \
// RUN: | FileCheck -check-prefix=DEFAULT %s
// RUN: %clang -### -target i686-pc-cygwin %s 2>&1 \
// RUN: | FileCheck -check-prefix=DEFAULT %s
// RUN: %clang -### -target i686-pc-openbsd %s 2>&1 \
// RUN: | FileCheck -check-prefix=DEFAULT %s
[Cygwin] Use -femulated-tls by default since r257718 introduced the new pass. FIXME: Add more targets to use emutls into clang/test/Driver/emulated-tls.cpp. FIXME: Add cygwin tests into llvm/test/CodeGen/X86. Working in progress. llvm-svn: 257984
2016-01-16 11:44:52 +08:00
[Driver] Pass -f[no-]emulated-tls and set up ExplicitEmulatedTLS Since LLVM r326341, default EmulatedTLS mode is decided in backend according to target triple. Any front-end should pass -f[no]-emulated-tls to backend and set up ExplicitEmulatedTLS only when the flags are used. Differential Revision: https://reviews.llvm.org/D43965 llvm-svn: 326499
2018-03-02 06:26:19 +08:00
// RUN: %clang -### -target arm-linux-androideabi -fno-emulated-tls -femulated-tls %s 2>&1 \
// RUN: | FileCheck -check-prefix=EMU %s
// RUN: %clang -### -target arm-linux-gnu %s -fno-emulated-tls -femulated-tls 2>&1 \
// RUN: | FileCheck -check-prefix=EMU %s
// RUN: %clang -### -target i686-pc-cygwin %s -fno-emulated-tls -femulated-tls 2>&1 \
// RUN: | FileCheck -check-prefix=EMU %s
// RUN: %clang -### -target i686-pc-openbsd %s -fno-emulated-tls -femulated-tls 2>&1 \
// RUN: | FileCheck -check-prefix=EMU %s
// RUN: %clang -### -target arm-linux-androideabi -femulated-tls -fno-emulated-tls %s 2>&1 \
// RUN: | FileCheck -check-prefix=NOEMU %s
// RUN: %clang -### -target arm-linux-gnu %s -femulated-tls -fno-emulated-tls 2>&1 \
// RUN: | FileCheck -check-prefix=NOEMU %s
// RUN: %clang -### -target i686-pc-cygwin %s -femulated-tls -fno-emulated-tls 2>&1 \
// RUN: | FileCheck -check-prefix=NOEMU %s
// RUN: %clang -### -target i686-pc-openbsd %s -femulated-tls -fno-emulated-tls 2>&1 \
// RUN: | FileCheck -check-prefix=NOEMU %s
// Default without -f[no-]emulated-tls, will be decided by the target triple.
// DEFAULT-NOT: "-cc1" {{.*}}"-femulated-tls"
// DEFAULT-NOT: "-cc1" {{.*}}"-fno-emulated-tls"
// Explicit and last -f[no-]emulated-tls flag will be passed to cc1.
// EMU: "-cc1" {{.*}}"-femulated-tls"
// EMU-NOT: "-cc1" {{.*}}"-fno-emulated-tls"
// NOEMU: "-cc1" {{.*}}"-fno-emulated-tls"
// NOEMU-NOT: "-cc1" {{.*}}"-femulated-tls"