Skip to content
Snippets Groups Projects
Forked from Glasgow Haskell Compiler / GHC
This fork has diverged from the upstream repository.
Cheng Shao's avatar
Cheng Shao authored
This patch removes the -fasm flag from test ways, except ways like
optasm that explicitly state they are meant to be compiled with NCG
backend. Most test ways should use the default codegen backend, and
the precense of -fasm can cause stderr mismatches like this when GHC
is configured with the unregisterised backend:

```
--- /dev/null
+++ /tmp/ghctest-3hydwldj/test   spaces/testsuite/tests/profiling/should_compile/prof-late-cc.run/prof-late-cc.comp.stderr.normalised
@@ -0,0 +1,2 @@
+when making flags consistent: warning: [GHC-74335] [-Winconsistent-flags (in -Wdefault)]
+    Target platform uses unregisterised ABI, so compiling via C
*** unexpected failure for prof-late-cc(prof_no_auto)
```

This has been breaking the wasm unreg nightly job since !12595 landed.

(cherry picked from commit 88488847)
(cherry picked from commit f603ac9c)
(cherry picked from commit 4977e2a6)
0c24c478
History

GHC Testsuite Readme

For the full testsuite documentation, please see here.

Quick Guide

Commands to run testsuite:

  • Full testsuite: make
  • Using more threads: make THREADS=12
  • Reduced (fast) testsuite: make fast
  • Run a specific test: make TEST=tc054
  • Test a specific 'way': make WAY=optllvm
  • Keeping the run directory after test run: make CLEANUP=0. You will find a directory {test_name}.run in the test's source directory.
  • Test a specific stage of GHC: make stage=1
  • Skip performance tests: make SKIP_PERF_TESTS=YES
  • Set verbosity: make VERBOSE=n where n=0: No per-test output, n=1: Only failures, n=2: Progress output, n=3: Include commands called (default), n=4: Include perf test results unconditionally, n=5: Echo commands in subsidiary make invocations
  • Pass in extra GHC options: make EXTRA_HC_OPTS=-fvectorize

You can also change directory to a specific test folder to run that individual test or group of tests. For example:

$ cd tests/array
$ make

Testsuite Ways

The testsuite can be run in a variety of 'ways'. This concept refers to different ways that GHC can compile the code. For example, using the native code generator (-fasm) is one way, while using the LLVM code generator (-fllvm) is another way.

The various ways that GHC supports are defined in config/ghc

Adding Tests

Please see the more extensive documentation here.