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Enhance chibicc

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This commit is contained in:
Justine Tunney 2020-12-09 04:00:48 -08:00
parent 8da931a7f6
commit 9df2cef4c4
52 changed files with 2606 additions and 2004 deletions
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15
third_party/chibicc/README.cosmo vendored
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@ -6,21 +6,30 @@ which is great, considering it's a 220kb αcτµαlly pδrταblε εxεcµταb
local enhancements
- support __asm__
- support dce
- support gnu asm
- support __int128
- support _Static_assert
- support __vector_size__
- support __builtin_memcpy
- support __builtin_add_overflow, etc.
- support __builtin_memcpy, strlen, strpbrk, etc.
- support __builtin_constant_p, __builtin_likely, etc.
- support __builtin_isunordered, __builtin_islessgreater, etc.
- support __builtin_ctz, __builtin_bswap, __builtin_popcount, etc.
- support __constructor__, __destructor__, __section__, __cold__, etc.
- support __constructor__, __section__, __cold__, -ffunction-sections, etc.
- support building -x assembler-with-cpp a.k.a. .S files
- support profiling w/ -mcount / -mfentry / -mnop-mcount
- improve error messages to trace macro expansions
- reduce #lines of generated assembly by a third
- reduce #bytes of generated binary by a third
local bug fixes
- allow casted values to be lvalues
- permit parentheses around string-initializer
- fix 64-bit bug in generated code for struct bitfields
- fix bug where last statement in statement expression couldn't have label
- print_tokens (chibicc -E) now works in the case of adjacent string literals
local changes