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https://github.com/jart/cosmopolitan.git
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Add chibicc
This program popped up on Hacker News recently. It's the only modern compiler I've ever seen that doesn't have dependencies and is easily modified. So I added all of the missing GNU extensions I like to use which means it might be possible soon to build on non-Linux and have third party not vendor gcc binaries.
This commit is contained in:
Justine Tunney
parent
e44a0cf6f8
commit
8da931a7f6
298 changed files with 19493 additions and 11950 deletions
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@ -22,9 +22,11 @@ int bsfl(long);
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int bsfll(long long);
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int bsfmax(uintmax_t);
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#ifdef __GNUC__
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#define bsf(u) __builtin_ctz(u)
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#define bsfl(u) __builtin_ctzl(u)
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#define bsfll(u) __builtin_ctzll(u)
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#endif
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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@ -22,9 +22,11 @@ int bsrl(long);
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int bsrll(long long);
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int bsrmax(uintmax_t);
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#ifdef __GNUC__
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#define bsr(u) ((sizeof(int) * 8 - 1) ^ __builtin_clz(u))
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#define bsrl(u) ((sizeof(long) * 8 - 1) ^ __builtin_clzl(u))
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#define bsrll(u) ((sizeof(long long) * 8 - 1) ^ __builtin_clzll(u))
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#endif
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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@ -36,32 +36,32 @@ cescapec:
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movzbl %cl,%ecx
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jmp *cescapectab(,%rcx,8)
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.Lanchorpoint:
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.LBEL: mov $'a,%ah
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.LBEL: mov $'a',%ah
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ret
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.LBS: mov $'b,%ah
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.LBS: mov $'b',%ah
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ret
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.LHT: mov $'t,%ah
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.LHT: mov $'t',%ah
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ret
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.LLF: mov $'n,%ah
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.LLF: mov $'n',%ah
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ret
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.LVT: mov $'v,%ah
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.LVT: mov $'v',%ah
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ret
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.LFF: mov $'f,%ah
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.LFF: mov $'f',%ah
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ret
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.LCR: mov $'r,%ah
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.LCR: mov $'r',%ah
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ret
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.LDQ: mov $'\",%ah
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.LDQ: mov $'\"',%ah
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ret
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.LSQ: mov $'\',%ah
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.LSQ: mov $'\'',%ah
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ret
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.LBSL: mov $'\\,%ah
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.LBSL: mov $'\\',%ah
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ret
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#ifdef __STRICT_ANSI__
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.LQM: mov $'?,%ah
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.LQM: mov $'?',%ah
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ret
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.LESC:
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#elif defined(__GNUC__)
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.LESC: mov $'e,%ah
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.LESC: mov $'e',%ah
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ret
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.LQM:
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#endif
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25
libc/nexgen32e/ctz.c
Normal file
25
libc/nexgen32e/ctz.c
Normal file
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@ -0,0 +1,25 @@
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/math.h"
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#include "libc/nexgen32e/nexgen32e.h"
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bool ctz(double x, double y) {
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return __builtin_islessgreater(x, y);
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}
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@ -41,7 +41,7 @@ ffs: .leafprologue
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bsf %edi,%eax
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or $-1,%edx
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cmovz %edx,%eax
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add $1,%eax
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inc %eax
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.leafepilogue
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.endfn ffs,globl
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.source __FILE__
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@ -41,7 +41,7 @@ ffsl: .leafprologue
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bsf %rdi,%rax
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or $-1,%edx
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cmovz %edx,%eax
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add $1,%eax
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inc %eax
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.leafepilogue
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.endfn ffsl,globl
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.alias ffsl,ffsll
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64
libc/nexgen32e/khalfcache3.S
Normal file
64
libc/nexgen32e/khalfcache3.S
Normal file
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@ -0,0 +1,64 @@
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/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/macros.h"
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/ Half size of level 3 cache in bytes.
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.initbss 202,_init_kHalfCache3
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kHalfCache3:
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.quad 0
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.endobj kHalfCache3,globl
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.previous
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.init.start 202,_init_kHalfCache3
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cmpl $3,kCpuids(%rip)
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jbe 3f
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xor %r8d,%r8d
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mov $4,%r8d
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1: mov %r8d,%eax
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mov %r8d,%ecx
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push %rbx
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cpuid
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mov %ebx,%r9d
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pop %rbx
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test $31,%al
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je 3f
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cmp $99,%al
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jne 2f
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mov %r9d,%eax
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mov %r9d,%edx
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inc %ecx
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shr $12,%r9d
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shr $22,%eax
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and $0x0fff,%edx
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and $0x03ff,%r9d
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inc %eax
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inc %edx
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imul %edx,%eax
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imul %ecx,%eax
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lea 1(%r9),%ecx
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imul %ecx,%eax
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jmp 4f
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2: inc %r8d
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jmp 1b
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3: mov $0x00400000,%eax
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4: shr %eax
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stosq
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.init.end 202,_init_kHalfCache3
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.source __FILE__
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@ -22,7 +22,7 @@
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/ Loads XMM registers from buffer.
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/
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/ @param %rdi points to &(aligned(16) uint8_t[256])[128]
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/ @param %rdi points to &(forcealign(16) uint8_t[256])[128]
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/ @note modern cpus have out-of-order execution engines
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loadxmm:.leafprologue
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movaps -0x80(%rdi),%xmm0
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@ -112,7 +112,7 @@ MemCpy: .leafprologue
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.L1: mov (%rsi),%cl
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mov %cl,(%rdi)
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jmp .L0
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.Lerms: cmp $4*1024*1024,%rdx # TODO: getcachesize()
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.Lerms: cmp kHalfCache3(%rip),%rdx
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ja .Lnts
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push %rdi
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push %rsi
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@ -22,7 +22,7 @@
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/ Stores XMM registers to buffer.
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/
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/ @param %rdi points to &(aligned(16) uint8_t[256])[128]
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/ @param %rdi points to &(forcealign(16) uint8_t[256])[128]
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/ @note modern cpus have out-of-order execution engines
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savexmm:.leafprologue
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movaps %xmm0,-0x80(%rdi)
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@ -28,6 +28,21 @@
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/ @return rax is pointer to substring or NULL
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/ @asyncsignalsafe
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strstr$sse42:
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.strstr .Lequalordered
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.leafprologue
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mov %rdi,%rax
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xor %ecx,%ecx
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0: mov $-16,%rdx
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1: add $16,%rdx
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movaps (%rsi,%rdx),%xmm0
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2: add %rcx,%rax
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lea (%rax,%rdx),%rdi
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pcmpistri $.Lequalordered,(%rdi),%xmm0
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3: ja 2b # !CF (no match) && !ZF (need NUL-term)
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jnc 4f # !CF (no match) && ZF (NUL-terminator)
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jno 0b # !OF ← CF && CX!=0 (matched at offset)
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jns 1b # !SF ← NUL ∉ XMM1 (need to match more)
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jmp 5f # youtu.be/nVk1DjMtLWs
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4: xor %eax,%eax
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5: .leafepilogue
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.endfn strstr$sse42,globl,hidden
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.source __FILE__
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