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| author | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2015-04-01 12:54:25 +0000 |
|---|---|---|
| committer | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2015-04-01 12:54:25 +0000 |
| commit | 3a610ebf1e7c44309880b2bd7ec9325d3f1db0bd (patch) | |
| tree | dcda64cd90746e94d74abf2688919bd2928a3680 /clang/test/Driver/systemz-features.cpp | |
| parent | 57c85f53baf9ea6c14a7f4af52cda2624470cbed (diff) | |
| download | bcm5719-llvm-3a610ebf1e7c44309880b2bd7ec9325d3f1db0bd.tar.gz bcm5719-llvm-3a610ebf1e7c44309880b2bd7ec9325d3f1db0bd.zip | |
[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
Diffstat (limited to 'clang/test/Driver/systemz-features.cpp')
| -rw-r--r-- | clang/test/Driver/systemz-features.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/clang/test/Driver/systemz-features.cpp b/clang/test/Driver/systemz-features.cpp new file mode 100644 index 00000000000..25937d1cdce --- /dev/null +++ b/clang/test/Driver/systemz-features.cpp @@ -0,0 +1,15 @@ + +// 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" + |
