tinycc/lib/alloca86_64.S
grischka 9bd69bf49f build: remove #include "config.h" from target dependent files
This is to make cross build of libtcc1.a easier.
2010-11-26 20:46:54 +01:00

39 lines
584 B
ArmAsm

/* ---------------------------------------------- */
/* alloca86_64.S */
.globl alloca
alloca:
pop %rdx
#ifdef TCC_TARGET_PE
mov %rcx,%rax
#else
mov %rdi,%rax
#endif
add $15,%rax
and $-16,%rax
jz p3
#ifdef TCC_TARGET_PE
p1:
cmp $4096,%rax
jle p2
sub $4096,%rsp
sub $4096,%rax
test %rax,(%rsp)
jmp p1
p2:
#endif
sub %rax,%rsp
mov %rsp,%rax
#ifdef TCC_TARGET_PE
add $32,%rax
#endif
p3:
push %rdx
ret
/* ---------------------------------------------- */