ir/tests/debug.x86/call_alloca.irt
Dmitry Stogov 09829a9e69 Fixed x86_64 calling convention for vararg functions
%al is used as a hidden register to specify the number of passed vector registers
2023-09-27 10:23:34 +03:00

67 lines
1.2 KiB
Plaintext

--TEST--
Simple CALL with ALLOCA
--TARGET--
x86
--ARGS--
-S --run
--CODE--
{
uintptr_t c_1 = 0;
bool c_2 = 0;
bool c_3 = 1;
int32_t c_4 = 42;
char h = 'h';
char i = 'i';
char sp = ' ';
char pc = '%';
char d = 'd';
char nl = '\n';
char zero = 0;
uint32_t len = 7;
uintptr_t one = 1;
uintptr_t c_5 = func(printf, 4);
l_1 = START(l_4);
uintptr_t a_0, s_0 = ALLOCA(l_1, len);
s_1 = STORE(s_0, a_0, h);
uintptr_t a_1 = ADD(a_0, one);
s_2 = STORE(s_1, a_1, i);
uintptr_t a_2 = ADD(a_1, one);
s_3 = STORE(s_2, a_2, sp);
uintptr_t a_3 = ADD(a_2, one);
s_4 = STORE(s_3, a_3, pc);
uintptr_t a_4 = ADD(a_3, one);
s_5 = STORE(s_4, a_4, d);
uintptr_t a_5 = ADD(a_4, one);
s_6 = STORE(s_5, a_5, nl);
uintptr_t a_6 = ADD(a_5, one);
s_7 = STORE(s_6, a_6, zero);
int32_t d_2, l_2 = CALL/2(s_7, c_5, a_0, c_4);
l_4 = RETURN(l_2, d_2);
}
--EXPECT--
test:
pushl %ebp
movl %esp, %ebp
subl $8, %esp
subl $0x10, %esp
movl %esp, %eax
movb $0x68, (%eax)
movb $0x69, 1(%eax)
movb $0x20, 2(%eax)
movb $0x25, 3(%eax)
movb $0x64, 4(%eax)
movb $0xa, 5(%eax)
movb $0, 6(%eax)
subl $0x10, %esp
movl %eax, (%esp)
movl $0x2a, 4(%esp)
calll printf
addl $0x10, %esp
movl %ebp, %esp
popl %ebp
retl
hi 42
exit code = 6