mirrors/llvm-project
0
0
Fork 0
mirror of https://github.com/llvm/llvm-project.git synced 2025-05-01 03:46:06 +00:00
Code Issues Projects Releases Wiki Activity
llvm-project/clang/test/Driver/systemz-features.cpp

16 lines
974 B
C++
Raw Normal View History

[SystemZ] Support transactional execution on zEC12 The zEC12 provides the transactional-execution facility. This is exposed to users via a set of builtin routines on other compilers. This patch adds clang support to enable those builtins. In partciular, the patch: - enables the transactional-execution feature by default on zEC12 - allows to override presence of that feature via the -mhtm/-mno-htm options - adds a predefined macro __HTM__ if the feature is enabled - adds support for the transactional-execution GCC builtins - adds Sema checking to verify the __builtin_tabort abort code - adds the s390intrin.h header file (for GCC compatibility) - adds s390 sections to the htmintrin.h and htmxlintrin.h header files Since this is first use of target-specific intrinsics on the platform, the patch creates the include/clang/Basic/BuiltinsSystemZ.def file and hooks it up in TargetBuiltins.h and lib/Basic/Targets.cpp. An associated LLVM patch adds the required LLVM IR intrinsics. For reference, the transactional-execution instructions are documented in the z/Architecture Principles of Operation for the zEC12: http://publibfp.boulder.ibm.com/cgi-bin/bookmgr/download/DZ9ZR009.pdf The associated builtins are documented in the GCC manual: http://gcc.gnu.org/onlinedocs/gcc/S_002f390-System-z-Built-in-Functions.html The htmxlintrin.h intrinsics provided for compatibility with the IBM XL compiler are documented in the "z/OS XL C/C++ Programming Guide". llvm-svn: 233804
2015-04-01 12:54:25 +00:00
// RUN: %clang -target s390x-unknown-linux-gnu %s -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-DEFAULT %s
// CHECK-DEFAULT-NOT: "-target-feature" "+transactional-execution"
// CHECK-DEFAULT-NOT: "-target-feature" "-transactional-execution"
// RUN: %clang -target s390x-unknown-linux-gnu %s -mhtm -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-HTM %s
// RUN: %clang -target s390x-unknown-linux-gnu %s -mno-htm -mhtm -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-HTM %s
// CHECK-HTM: "-target-feature" "+transactional-execution"
// CHECK-HTM-NOT: "-target-feature" "-transactional-execution"
// RUN: %clang -target s390x-unknown-linux-gnu %s -mno-htm -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOHTM %s
// RUN: %clang -target s390x-unknown-linux-gnu %s -mhtm -mno-htm -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOHTM %s
// CHECK-NOHTM: "-target-feature" "-transactional-execution"
// CHECK-NOHTM-NOT: "-target-feature" "+transactional-execution"
Reference in New Issue Copy Permalink