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Get codebase completely working with LLVM

Browse source 
You can now build Cosmopolitan with Clang:

    make -j8 MODE=llvm
    o/llvm/examples/hello.com

The assembler and linker code is now friendly to LLVM too.
So it's not needed to configure Clang to use binutils under
the hood. If you love LLVM then you can now use pure LLVM.
This commit is contained in:
Justine Tunney 2021-02-08 09:19:00 -08:00
parent 0e36cb3ac4
commit e75ffde09e
4528 changed files with 7776 additions and 11640 deletions
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22
libc/nexgen32e/tinydivsi.greg.S
View file

@ -18,17 +18,17 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.h"
/ Support code for fast integer division by Si units.
/
/ Division by magnums is described in Hacker's Delight and is
/ usually generated automatically by compilers, but sadly not
/ when we optimize for size and idiv goes at least 10x slower
/ so we do this which saves space while avoiding build tuning
/
/ @param rdi is number to divide
/ @param cl is magnum #1
/ @param rdx is magnum #2
/ @return quotient
// Support code for fast integer division by Si units.
//
// Division by magnums is described in Hacker's Delight and is
// usually generated automatically by compilers, but sadly not
// when we optimize for size and idiv goes at least 10x slower
// so we do this which saves space while avoiding build tuning
//
// @param rdi is number to divide
// @param cl is magnum #1
// @param rdx is magnum #2
// @return quotient
tinydivsi:
.leafprologue
mov %rdi,%rax