[flang-commits] [flang] d31406b - [flang][docs] Update llvm-test-suite docs (#81596)

[via flang-commits]

Author: David Spickett
Date: 2024-02-21T10:20:02Z
New Revision: d31406b394307e5629372271f797f55c7ca9bbd3

URL: https://github.com/llvm/llvm-project/commit/d31406b394307e5629372271f797f55c7ca9bbd3
DIFF: https://github.com/llvm/llvm-project/commit/d31406b394307e5629372271f797f55c7ca9bbd3.diff

LOG: [flang][docs] Update llvm-test-suite docs (#81596)

With some missing config options and a link to the test suite docs that
explain how to setup `ISO_FORTRAN_C_HEADER` and set the stop message
variable.

Added: 
    

Modified: 
    flang/docs/FortranLLVMTestSuite.md

Removed: 
    


################################################################################
diff  --git a/flang/docs/FortranLLVMTestSuite.md b/flang/docs/FortranLLVMTestSuite.md
index 45485ef40106f6..611e03cbad0eb2 100644
--- a/flang/docs/FortranLLVMTestSuite.md
+++ b/flang/docs/FortranLLVMTestSuite.md
@@ -21,7 +21,9 @@ cmake -G "Ninja" -DCMAKE_C_COMPILER=<path to C compiler> \
     -DCMAKE_Fortran_COMPILER=<path to Fortran compiler> \
     -DTEST_SUITE_COLLECT_CODE_SIZE:STRING=OFF \
     -DTEST_SUITE_SUBDIRS:STRING="Fortran" \
-    -DTEST_SUITE_FORTRAN:STRING=ON ..
+    -DTEST_SUITE_FORTRAN:STRING=ON \
+    -DTEST_SUITE_LIT=<path to llvm-lit> \
+    <path to llvm-test-suite>
 ```
 
 This will configure the test-suite to run only the Fortran tests which
@@ -29,10 +31,15 @@ are found in the Fortran subdirectory. To run the C/C++ tests
 alongside the Fortran tests omit the `-DTEST_SUITE_SUBDIRS` CMake
 variable.
 
-If your Fortran compiler is Flang, you may want to set the `NO_STOP_MESSAGE`
-environment variable to `1` in order to avoid test failures due to warnings
-about INEXACT signaling exceptions.
+If your Fortran compiler is Flang, there are a couple of other things you need
+to do, which are explained
+[here](https://github.com/llvm/llvm-test-suite/blob/main/Fortran/gfortran/README.md#usage).
 
+Then to build and run the tests:
+```
+ninja
+ninja check
+```
 
 ## Running the SPEC CPU 2017