Andreas Herrmann aherrmann

Comparing the GHC optimizer on MTL vs Capability

Only considering very simple examples. GHC Core produced with the following alias and passing -O.

alias ghc-core="ghc -ddump-simpl -dsuppress-idinfo \
    -dsuppress-coercions -dsuppress-type-applications \
    -dsuppress-uniques -dsuppress-module-prefixes"

	$ nixops deploy --show-trace -d trivial
	webserver> creating VirtualBox VM...
	webserver> Virtual machine 'nixops-9b06f219-0e9b-11e4-b973-f01faf13e875-webserver' is created and registered.
	webserver> UUID: 30de8820-3dcd-4844-92ba-03af85c23dab
	webserver> Settings file: '/home/user/VirtualBox VMs/nixops-9b06f219-0e9b-11e4-b973-f01faf13e875-webserver/nixops-9b06f219-0e9b-11e4-b973-f01faf13e875-webserver.vbox'
	webserver> creating disk ‘disk1’...
	webserver> 0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
	webserver> Clone hard disk created in format 'VDI'. UUID: 27e971d3-5cb3-418b-b69e-9083ba9971c1
	webserver> attaching disk ‘disk1’...
	webserver> Waiting for VM "nixops-9b06f219-0e9b-11e4-b973-f01faf13e875-webserver" to power on...

	# This is free and unencumbered software released into the public domain.

	# Anyone is free to copy, modify, publish, use, compile, sell, or
	# distribute this software, either in source code form or as a compiled
	# binary, for any purpose, commercial or non-commercial, and by any
	# means.

	# In jurisdictions that recognize copyright laws, the author or authors
	# of this software dedicate any and all copyright interest in the
	# software to the public domain. We make this dedication for the benefit

	#!/usr/bin/env bash

	# This script tests Bazel's builtin hash function to determine if it is
	# sufficient to disambiguate Stackage package names that only differ by case
	# on a case insensitive file system.

	# Fetch the lts-12.4 snapshot and extract the package names into a Bazel readable format.
	wget https://raw.githubusercontent.com/fpco/lts-haskell/master/lts-12.4.yaml
	yaml2json < lts-12.4.yaml \| jq -r '.packages\|keys\|.[]' > lts-12.4-package-names

	ERROR: D:/a/1/s/libs-haskell/bazel-runfiles/BUILD.bazel:6:1: HaskellBuildLibrary //libs-haskell/bazel-runfiles:bazel-runfiles failed (Exit 1)

	libs-haskell\bazel-runfiles\src\DA\Bazel\Runfiles.hs:13:1: error:
	Could not find module `Bazel.Runfiles'
	Use -v to see a list of the files searched for.
	\|
	13 \| import qualified Bazel.Runfiles
	\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

	ERROR: D:/a/1/s/libs-haskell/bazel-runfiles/BUILD.bazel:6:1: HaskellBuildLibrary //libs-haskell/bazel-runfiles:bazel-runfiles failed (Exit 1)

	libs-haskell\bazel-runfiles\src\DA\Bazel\Runfiles.hs:13:1: error:
	Could not find module `Bazel.Runfiles'
	Use -v to see a list of the files searched for.
	\|
	13 \| import qualified Bazel.Runfiles
	\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

	command_args: "external/bazel_tools/tools/zip/zipper/zipper.exe"
	command_args: "cC"
	command_args: "bazel-out/x64_windows-opt/bin/external/rules_haskell/haskell/ls_modules.zip"
	command_args: "@bazel-out/x64_windows-opt/bin/external/rules_haskell/haskell/ls_modules.zip-0.params"
	environment_variables {
	name: "JAVA_HOME"
	value: "C:\\Users\\VssAdministrator\\dadew\\scoop\\apps\\java-openjdk-8u201\\current"
	}
	environment_variables {
	name: "PATH"