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llvm-project/clang/test/Driver/fopenmp.c

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[omp] Re-work Clang's handling of -fopenmp and undo r237769. This isn't an actual revert of r237769, it just restores the behavior of the Clang driver prior to it while completely re-implementing how that behavior works. This also re-does the work of making the default OpenMP runtime selectable at CMake (or configure) time to work in the way all of our other such hooks do (config.h, configure and cmake hooks, etc.). I've re-implemented how we manage the '-fopenmp' flagset in an important way. Now, the "default" hook just makes '-fopenmp' equivalent to '-fopenmp=<default>' rather than a separate special beast. Also, there is an '-fno-openmp' flag which does the obvious thing. Also, the code is shared between all the places to select a known OpenMP runtime and act on it. Finally, and most significantly, I've taught the driver to inspect the selected runtime when choosing whether to propagate the '-fopenmp' flag to the frontend in the CC1 commandline. Without this, it isn't possible to use Clang with libgomp, even if you were happy with the serial, boring way in which it worked previously (ignoring all #pragmas but linking in the library to satisfy direct calls into the runtime). While I'm here, I've gone ahead and sketched out a path for the future name of LLVM's OpenMP runtime (libomp) and the legacy support for its current name (libiomp5) in what seems a more reasonable way. To re-enable LLVM's OpenMP runtime (which I think should wait until the normal getting started instructions are a reasonable way for falks to check out, build, and install Clang with the runtime) all that needs to change is the default string in the CMakeLists.txt and configure.ac file. No code changes necessary. I also added a test for the driver's behavior around OpenMP since it was *completely missing* previously. Makes it unsurprising that we got it wrong. llvm-svn: 238389
2015-05-28 09:52:38 +08:00
// RUN: %clang -target x86_64-linux-gnu -fopenmp=libomp -c %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-CC1-OPENMP
// RUN: %clang -target x86_64-linux-gnu -fopenmp=libgomp -c %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-CC1-NO-OPENMP
// RUN: %clang -target x86_64-linux-gnu -fopenmp=libiomp5 -c %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-CC1-OPENMP
Push OpenMP linker flags after linker input on Darwin. Don't add any libraries if -nostdlib is specified. Test. llvm-svn: 248424
2015-09-24 04:07:56 +08:00
// RUN: %clang -target x86_64-apple-darwin -fopenmp=libomp -c %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-CC1-OPENMP
// RUN: %clang -target x86_64-apple-darwin -fopenmp=libgomp -c %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-CC1-NO-OPENMP
// RUN: %clang -target x86_64-apple-darwin -fopenmp=libiomp5 -c %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-CC1-OPENMP
Support linking against OpenMP runtime on FreeBSD. Summary: Similar to rL248426 (which was a followup to rL248379 and rL248424), add the required libraries for OpenMP on the linker command line, and update the test case. Reviewers: emaste, theraven, joerg Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D13822 llvm-svn: 250657
2015-10-18 21:32:20 +08:00
// RUN: %clang -target x86_64-freebsd -fopenmp=libomp -c %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-CC1-OPENMP
// RUN: %clang -target x86_64-freebsd -fopenmp=libgomp -c %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-CC1-NO-OPENMP
// RUN: %clang -target x86_64-freebsd -fopenmp=libiomp5 -c %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-CC1-OPENMP
Support linking against OpenMP runtime on NetBSD. llvm-svn: 248426
2015-09-24 04:11:00 +08:00
// RUN: %clang -target x86_64-netbsd -fopenmp=libomp -c %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-CC1-OPENMP
// RUN: %clang -target x86_64-netbsd -fopenmp=libgomp -c %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-CC1-NO-OPENMP
// RUN: %clang -target x86_64-netbsd -fopenmp=libiomp5 -c %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-CC1-OPENMP
[omp] Re-work Clang's handling of -fopenmp and undo r237769. This isn't an actual revert of r237769, it just restores the behavior of the Clang driver prior to it while completely re-implementing how that behavior works. This also re-does the work of making the default OpenMP runtime selectable at CMake (or configure) time to work in the way all of our other such hooks do (config.h, configure and cmake hooks, etc.). I've re-implemented how we manage the '-fopenmp' flagset in an important way. Now, the "default" hook just makes '-fopenmp' equivalent to '-fopenmp=<default>' rather than a separate special beast. Also, there is an '-fno-openmp' flag which does the obvious thing. Also, the code is shared between all the places to select a known OpenMP runtime and act on it. Finally, and most significantly, I've taught the driver to inspect the selected runtime when choosing whether to propagate the '-fopenmp' flag to the frontend in the CC1 commandline. Without this, it isn't possible to use Clang with libgomp, even if you were happy with the serial, boring way in which it worked previously (ignoring all #pragmas but linking in the library to satisfy direct calls into the runtime). While I'm here, I've gone ahead and sketched out a path for the future name of LLVM's OpenMP runtime (libomp) and the legacy support for its current name (libiomp5) in what seems a more reasonable way. To re-enable LLVM's OpenMP runtime (which I think should wait until the normal getting started instructions are a reasonable way for falks to check out, build, and install Clang with the runtime) all that needs to change is the default string in the CMakeLists.txt and configure.ac file. No code changes necessary. I also added a test for the driver's behavior around OpenMP since it was *completely missing* previously. Makes it unsurprising that we got it wrong. llvm-svn: 238389
2015-05-28 09:52:38 +08:00
//
// CHECK-CC1-OPENMP: "-cc1"
// CHECK-CC1-OPENMP: "-fopenmp"
//
// CHECK-CC1-NO-OPENMP: "-cc1"
// CHECK-CC1-NO-OPENMP-NOT: "-fopenmp"
//
// RUN: %clang -target x86_64-linux-gnu -fopenmp=libomp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-LD-OMP
// RUN: %clang -target x86_64-linux-gnu -fopenmp=libgomp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-LD-GOMP
// RUN: %clang -target x86_64-linux-gnu -fopenmp=libiomp5 %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-LD-IOMP5
//
Push OpenMP linker flags after linker input on Darwin. Don't add any libraries if -nostdlib is specified. Test. llvm-svn: 248424
2015-09-24 04:07:56 +08:00
// RUN: %clang -nostdlib -target x86_64-linux-gnu -fopenmp=libomp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-OMP
// RUN: %clang -nostdlib -target x86_64-linux-gnu -fopenmp=libgomp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-GOMP
// RUN: %clang -nostdlib -target x86_64-linux-gnu -fopenmp=libiomp5 %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-IOMP5
//
// RUN: %clang -target x86_64-darwin -fopenmp=libomp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-LD-OMP
// RUN: %clang -target x86_64-darwin -fopenmp=libgomp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-LD-GOMP
// RUN: %clang -target x86_64-darwin -fopenmp=libiomp5 %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-LD-IOMP5
//
// RUN: %clang -nostdlib -target x86_64-darwin -fopenmp=libomp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-OMP
// RUN: %clang -nostdlib -target x86_64-darwin -fopenmp=libgomp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-GOMP
// RUN: %clang -nostdlib -target x86_64-darwin -fopenmp=libiomp5 %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-IOMP5
//
Support linking against OpenMP runtime on NetBSD. llvm-svn: 248426
2015-09-24 04:11:00 +08:00
// RUN: %clang -target x86_64-netbsd -fopenmp=libomp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-LD-OMP
// RUN: %clang -target x86_64-netbsd -fopenmp=libgomp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-LD-GOMP
// RUN: %clang -target x86_64-netbsd -fopenmp=libiomp5 %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-LD-IOMP5
//
Support linking against OpenMP runtime on FreeBSD. Summary: Similar to rL248426 (which was a followup to rL248379 and rL248424), add the required libraries for OpenMP on the linker command line, and update the test case. Reviewers: emaste, theraven, joerg Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D13822 llvm-svn: 250657
2015-10-18 21:32:20 +08:00
// RUN: %clang -nostdlib -target x86_64-freebsd -fopenmp=libomp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-OMP
// RUN: %clang -nostdlib -target x86_64-freebsd -fopenmp=libgomp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-GOMP
// RUN: %clang -nostdlib -target x86_64-freebsd -fopenmp=libiomp5 %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-IOMP5
//
Support linking against OpenMP runtime on NetBSD. llvm-svn: 248426
2015-09-24 04:11:00 +08:00
// RUN: %clang -nostdlib -target x86_64-netbsd -fopenmp=libomp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-OMP
// RUN: %clang -nostdlib -target x86_64-netbsd -fopenmp=libgomp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-GOMP
// RUN: %clang -nostdlib -target x86_64-netbsd -fopenmp=libiomp5 %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-NO-IOMP5
//
[omp] Re-work Clang's handling of -fopenmp and undo r237769. This isn't an actual revert of r237769, it just restores the behavior of the Clang driver prior to it while completely re-implementing how that behavior works. This also re-does the work of making the default OpenMP runtime selectable at CMake (or configure) time to work in the way all of our other such hooks do (config.h, configure and cmake hooks, etc.). I've re-implemented how we manage the '-fopenmp' flagset in an important way. Now, the "default" hook just makes '-fopenmp' equivalent to '-fopenmp=<default>' rather than a separate special beast. Also, there is an '-fno-openmp' flag which does the obvious thing. Also, the code is shared between all the places to select a known OpenMP runtime and act on it. Finally, and most significantly, I've taught the driver to inspect the selected runtime when choosing whether to propagate the '-fopenmp' flag to the frontend in the CC1 commandline. Without this, it isn't possible to use Clang with libgomp, even if you were happy with the serial, boring way in which it worked previously (ignoring all #pragmas but linking in the library to satisfy direct calls into the runtime). While I'm here, I've gone ahead and sketched out a path for the future name of LLVM's OpenMP runtime (libomp) and the legacy support for its current name (libiomp5) in what seems a more reasonable way. To re-enable LLVM's OpenMP runtime (which I think should wait until the normal getting started instructions are a reasonable way for falks to check out, build, and install Clang with the runtime) all that needs to change is the default string in the CMakeLists.txt and configure.ac file. No code changes necessary. I also added a test for the driver's behavior around OpenMP since it was *completely missing* previously. Makes it unsurprising that we got it wrong. llvm-svn: 238389
2015-05-28 09:52:38 +08:00
// CHECK-LD-OMP: "{{.*}}ld{{(.exe)?}}"
// CHECK-LD-OMP: "-lomp"
//
// CHECK-LD-GOMP: "{{.*}}ld{{(.exe)?}}"
// CHECK-LD-GOMP: "-lgomp"
//
// CHECK-LD-IOMP5: "{{.*}}ld{{(.exe)?}}"
// CHECK-LD-IOMP5: "-liomp5"
[omp] Loosen the driver test enough so that overriding the defaults works well for folks. This isn't terribly clean (sadly) but after chatting with both Eric and Richard, nothing cleaner really emerged. The clean way of doing this is a *lot* of work for extremely little benefit here. llvm-svn: 238500
2015-05-29 05:20:14 +08:00
//
Push OpenMP linker flags after linker input on Darwin. Don't add any libraries if -nostdlib is specified. Test. llvm-svn: 248424
2015-09-24 04:07:56 +08:00
// CHECK-NO-OMP: "{{.*}}ld{{(.exe)?}}"
// CHECK-NO-OMP-NOT: "-lomp"
//
// CHECK-NO-GOMP: "{{.*}}ld{{(.exe)?}}"
// CHECK-NO-GOMP-NOT: "-lgomp"
//
// CHECK-NO-IOMP5: "{{.*}}ld{{(.exe)?}}"
// CHECK-NO-IOMP5-NOT: "-liomp5"
//
[omp] Loosen the driver test enough so that overriding the defaults works well for folks. This isn't terribly clean (sadly) but after chatting with both Eric and Richard, nothing cleaner really emerged. The clean way of doing this is a *lot* of work for extremely little benefit here. llvm-svn: 238500
2015-05-29 05:20:14 +08:00
// We'd like to check that the default is sane, but until we have the ability
// to *always* semantically analyze OpenMP without always generating runtime
// calls (in the event of an unsupported runtime), we don't have a good way to
// test the CC1 invocation. Instead, just ensure we do eventually link *some*
// OpenMP runtime.
//
// RUN: %clang -target x86_64-linux-gnu -fopenmp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-LD-ANY
Push OpenMP linker flags after linker input on Darwin. Don't add any libraries if -nostdlib is specified. Test. llvm-svn: 248424
2015-09-24 04:07:56 +08:00
// RUN: %clang -target x86_64-darwin -fopenmp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-LD-ANY
Support linking against OpenMP runtime on FreeBSD. Summary: Similar to rL248426 (which was a followup to rL248379 and rL248424), add the required libraries for OpenMP on the linker command line, and update the test case. Reviewers: emaste, theraven, joerg Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D13822 llvm-svn: 250657
2015-10-18 21:32:20 +08:00
// RUN: %clang -target x86_64-freebsd -fopenmp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-LD-ANY
Support linking against OpenMP runtime on NetBSD. llvm-svn: 248426
2015-09-24 04:11:00 +08:00
// RUN: %clang -target x86_64-netbsd -fopenmp %s -o %t -### 2>&1 | FileCheck %s --check-prefix=CHECK-LD-ANY
[omp] Loosen the driver test enough so that overriding the defaults works well for folks. This isn't terribly clean (sadly) but after chatting with both Eric and Richard, nothing cleaner really emerged. The clean way of doing this is a *lot* of work for extremely little benefit here. llvm-svn: 238500
2015-05-29 05:20:14 +08:00
//
// CHECK-LD-ANY: "{{.*}}ld{{(.exe)?}}"
// CHECK-LD-ANY: "-l{{(omp|gomp|iomp5)}}"