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Improve dead code elimination

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This commit is contained in:
Justine Tunney 2021-02-08 04:04:42 -08:00
parent 760db8c5ad
commit 0e36cb3ac4
6606 changed files with 9685 additions and 9854 deletions
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7
libc/runtime/abort.S
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@ -22,7 +22,6 @@
#include "libc/sysv/consts/nr.h"
#include "libc/macros.h"
.privileged
.source __FILE__
/ Terminates program abnormally.
/
@ -38,8 +37,10 @@ abort: push %rbp
mov %rsp,%rbp
and $-16,%rsp
sub $16,%rsp
#if SupportsWindows()
testb IsWindows()
jnz 2f
jnz sys_abort_nt
#endif
mov SIG_SETMASK,%edi
mov %rsp,%rsi
push $0xffffffffffffffdf # all bits blocked but SIGABRT
@ -56,5 +57,5 @@ abort: push %rbp
mov SIGABRT,%esi
mov __NR_kill,%eax
syscall # avoid hook and less bt noise
2: call sys_abort_nt
call _Exit
.endfn abort,globl,protected