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v0.6.3 (Fall 2020)
==================
Bug fixes:
* fix missing inlining of _Generic expression
* fix evaluation error with assignment of qualified arrays
* delay 'empty character constant' warning to phase 5
* simplify & fix parsing of array declarators
* accept whitespace after option -U
* teach dissect about _Generic
* reset locale after gtk_init() to workaround problems with strtold()
* fix linearization of shift-assign
* force to 0 expressions which are erroneously non-constant
* fix evaluate_ptr_add() when sizeof(offset) != sizeof(pointer)
* fix access to defining instruction in simplify_unop()
* fix evaluation of pointer to bool conversions
* fix usual conversion of integers
New features:
* add support for arch specific asm constraints
* add memory asm constraint for PPC & S390
* prepend diagnostics with source's path and include chain
* add support for h8300, microblaze, nds32, openrisc, sh & xtensa
* add support for '-march=....' and use it for riscv
* add an option to specify the OS: --os=$OS
* add predefines for OS identification
* add predefines for __INT_LEAST${N}_TYPE__ & __INT_FAST${N}_TYPE__
* document the sparse's extensions
* sindex/semind: allow indexing outside the project tree
* rename tool 'sindex' to 'semind'
* add builtin support for __sync_{bool,val}_compare_and_swap()
* add support for wide strings
* union-cast: teach sparse about union casts
* add support for a new instruction: OP_FMADD
* add various warnings for dangerous usage of flexible array members
* add builtin support for __builtin_ia32_pause()
Misc changes:
* cleanup the handling of options flags
* avoid multiple warnings when inlining undeclared calls
* small fixes for alpha, arm, nios2, ppc, sparc & x86
* add missing predefines for endianness on arm, arm64, mips
* add various missing arch-specific predefines
* add the predefines '__cdecl', ... on cygwin
* warn on empty assignments & initializations
* reorganize the keyword parsing table
* the message in _Static_assert() is now optional (C2x)
* small fixes & improvement to the [online] documentation
* allow [*] in array declarators
* do not accept comma expressions in array declarator
* simplify parsing of attributes & storage class
* bad-shift: wait dead code elimination to warn about bad shifts
* fix is_scalar_type(): fouled types are scalars too
* better support for linearization of builtins
* remove definition of removed OP_{AND,OR}_BOOL
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