test case for BrainF

[xgupta]

Hi @jnyfah!

Pre merge checks are failing which means ninja check-all is not passed. Please see https://llvm.org/docs/Phabricator.html#pre-merge-testing. So before uploading/updating patches, you need to make sure all tests are passing.

And you need to add these tests under llvm/test/examples/ directory instead of llvm/test/. HelloWorld.II file extension should be .ll instead of .LL( you used capital latters).

[xgupta]

Any progress on it @jnyfah?

[jnyfah]

Yes, still trying to run it with ninja

[xgupta]

Fine, feel to ask on forums if you have some questions or getting trouble in understanding concepts.

llvm/test/Examples/BrainF/BrainF.ll

-RUN: BrainF %s -o - | llvm-dis | FileCheck --check-prefix=CHECK %s
-RUN: BrainF %s -o - | lli 2>&1 | FileCheck --check-prefix=EXEC %s
+[
+; RUN: BrainF %s -o - | llvm-dis | FileCheck --check-prefix=CHECK %p/Inputs/HelloWorld.bf
+; RUN: BrainF %s -o - | lli 2>&1 | FileCheck --check-prefix=EXEC %p/Inputs/HelloWorld.bf
 
 CHECK-LABEL:      define void @brainf() {
 CHECK-NEXT:      brainf:

 CHECK-NEXT:        %head = getelementptr i8, i8* %malloccall, i32 32768
 CHECK-NEXT:        %tape = load i8, i8* %head, align 1
 CHECK:             store i8 %tape2, i8* %head, align 1             
-CHECK:             [[tape2:%.*]] = add i8 [[tape]], 8
 CHECK:             br label %brainf3
 CHECK:           brainf1:                                          ; preds = %brainf55
 CHECK-NEXT:        tail call void @free(i8* %malloccall)

 CHECK-NEXT:        ret i32 0
 CHECK:       }
 
-EXEC: Hello World!
+EXEC: Hello World!
+
+]
 No newline at end of file

llvm/test/Examples/BrainF/Inputs/HelloWorld.bf

 ----- - .               (print 'l')
 ----- --- .             (print 'd')
 > + .                   (print '!')
-> .                     (print '\n')
-# CHECK: Hello World
+> .                     (print '\n')
 

mypatch.patch

-diff --git a/llvm/docs/GettingStarted.rst b/llvm/docs/GettingStarted.rst
-index 838af6da9fa3..99c364c44918 100644
---- a/llvm/docs/GettingStarted.rst
-+++ b/llvm/docs/GettingStarted.rst
-@@ -173,7 +173,7 @@ uses the package and provides other details.
- Package                                                     Version      Notes
- =========================================================== ============ ==========================================
- `CMake <http://cmake.org/>`__                               >=3.13.4     Makefile/workspace generator
--`GCC <http://gcc.gnu.org/>`_                                >=5.1.0      C/C++ compiler\ :sup:`1`
-+`GCC <http://gcc.gnu.org/>`_                                >=7.4      C/C++ compiler\ :sup:`1`
- `python <http://www.python.org/>`_                          >=3.6        Automated test suite\ :sup:`2`
- `zlib <http://zlib.net>`_                                   >=1.2.3.4    Compression library\ :sup:`3`
- `GNU Make <http://savannah.gnu.org/projects/make>`_         3.79, 3.79.1 Makefile/build processor\ :sup:`4`
-@@ -233,9 +233,9 @@ LLVM is written using the subset of C++ documented in :doc:`coding
- standards<CodingStandards>`. To enforce this language version, we check the most
- popular host toolchains for specific minimum versions in our build systems:
- 
--* Clang 3.5
-+* Clang 6.0
- * Apple Clang 6.0
--* GCC 5.1
-+* GCC 7.4
- * Visual Studio 2017
- 
- Anything older than these toolchains *may* work, but will require forcing the