ir: new pass iteration strategy

Merge pull request #668 from sparrisable/master

fix self-hosted parser test

move utf8 parsing to std

set compile flags for zip_cpp

self-hosted: build against zig_llvm and embedded LLD

fix segfault when passing union enum with sub byte...

docs: fix typo

add source encoding rules to the docs. see #663

[self-hosted] source must be valid utf8. see #663

debug needs to export FailingAllocator

move std/debug.zig to a subdirectory

translate-c: set up debug scope for translated functions

build: findLLVM correctly handles system libraries

build: add --search-prefix option

std.os.path.resolve handles an absolute path that is missing the drive

[self-hosted] tokenizer error for ascii control codes

source files must end with newline

port most of main.cpp to self hosted compiler

fix endianness of sub-byte integer fields in packed structs

std.math: remove unnecessary inline calls and

bufPrint returns an error

fix darwin and windows from previous commit

explicitly return from blocks

add labeled loops, labeled break, labeled continue. remove goto

fix crash when implicitly casting array of len 0 to slice

fix assert when wrapping zero bit type in nullable

add sort.min and sort.max functions to stdlib

Merge branch 'export-rewrite'

fix std.mem missing error.OutOfMemory decl

roughly parsing infix operators

change mem.cmp to mem.lessThan and add test

fix missing import from previous commit

disable sort tests for 32-bit windows because of issue #537

replace quicksort with blocksort

fix compiler crash in a nullable if after an if in...

fix const and volatile qualifiers being dropped sometimes

add test for allowing slice[slice.len..slice.len]

self-hosted: implement var decl align

self-hosted: implement addr of align parsing

self-hosted: look for llvm-config in homebrew

self-hosted: build tries to find llvm-config.exe

self-hosted: cleanup build looking for llvm-config

self-hosted: move code to std.os.ChildProcess.exec

stack traces: support DW_AT_ranges

self-hosted: link with LLVM

self-hosted: test all out of memory conditions

refactor debug.global_allocator into mem.FixedBufferAllocator

self-hosted: refactor into multiple files

self-hosted: workaround for issue #537

self-hosted: parsing and rendering blocks

self-hosted: clean up parser

self-hosted: parse variable declarations with types

self-hosted: parse var decls

add self-hosted parsing and rendering to main tests

Merge remote-tracking branch 'origin/master' into self-hosted

rendering source code without recursion

parsing an extern fn declaration

partial parameter decl parsing

tokenizing libc hello world

parse a simple variable declaration

Merge remote-tracking branch 'origin/master' into self-hosted

Merge branch 'master' into self-hosted

Merge branch 'master' into self-hosted

awkward void union field syntax no longer needed

upgrade to new args api

Merge branch 'master' into self-hosted

Merge branch 'master' into self-hosted

revert to master branch ir.cpp, fixes issue better than this branch

Merge branch 'master' into self-hosted

parser skeleton

tokenizing hello world

tokenizing basic operators

tokenizing string literals

simple tokenization

read a file

fix incorrect LLVM IR for union constant when active field is void

rename builtin.is_big_endian to builtin.endian

Merge pull request #644 from Dubhead/Dubhead-fix-message-color

add test for casting union to tag type of union

fix build on windows

add test for union with 1 void field being 0 bits

add test for @sizeOf on extern and packed unions

update docs regarding enums and unions

more tests for unions

fix abi alignment of union-enums not counting tag type

rename @EnumTagType to @TagType. add tests for union-enums

rework enums and unions and their relationship to each other

ability to set tag values of enums

casting between integer and enum only works via tag type

todo: fix #639

implement insertion sort. something's broken

Merge branch 'llvm5.0.1'

translate-c: only emit enum tag type if not c_int or c_uint

packed structs can have enums with explicit tag types

ability to specify tag type of enums

add mem.readIntLE and readIntBE

fix build broken by previous commit

translate-c: support static incomplete array inside function

fix capturing value of switch with all unreachable prongs