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Implement the jit_align interface

* lib/jit_aarch64-cpu.c, lib/jit_alpha-cpu.c, lib/jit_arm-cpu.c,
	lib/jit_hppa-cpu.c, lib/jit_mips-cpu.c, lib/jit_ppc-cpu.c,
	lib/jit_sparc-cpu.c: Implement or correct the internal
	nop(count) call that receives an argument that tells the
	modulo bytes to align the code for the next instruction.

	* include/lightning.h, lib/lightning.c, lib/jit_aarch64.c,
	lib/jit_alpha.c, lib/jit_arm.c, lib/jit_hppa.c, lib/jit_ia64.c,
	lib/jit_mips.c, lib/jit_ppc.c, lib/jit_s390x.c, lib/jit_sparc.c,
	lib/jit_x86.c: Implement the new jit_align() call that receive
	an argument, that tells the modulo, in bytes, to align the
	next instruction. In most backends the only value that makes
	a difference is a value that matches sizeof(void*), as all
	other values usually are already automatically aligned in
	labels, but not guaranteed to be aligned at word size bytes.

	* check/align.ok, check/align.tst: New files, implementing
	a simple test for the new jit_align() interface.

	* check/Makefile.am, check/lightning.c, lib/jit_aarch64-sz.c,
	lib/jit_alpha-sz.c, lib/jit_arm-sz.c, lib/jit_hppa-sz.c,
	lib/jit_ia64-sz.c, lib/jit_mips-sz.c, lib/jit_ppc-sz.c,
	lib/jit_print.c, lib/jit_s390x-sz.c, lib/jit_sparc-sz.c,
	lib/jit_x86-sz.c: Update for the new jit_code_align code and
	the jit_align() interface.
This commit is contained in:
pcpa 2014-10-14 17:05:25 -03:00
parent dbb1bb2409
commit afae5407f6
33 changed files with 180 additions and 20 deletions

View file

@ -303,7 +303,8 @@ _hrrrit(jit_state_t*,jit_int32_t,jit_int32_t,jit_int32_t,jit_int32_t,
static void _hrri(jit_state_t*,jit_int32_t,jit_int32_t,jit_int32_t,jit_int32_t);
# define hi(hc,im) _hi(_jit,hc,im)
static void _hi(jit_state_t*,jit_int32_t,jit_int32_t);
# define NOP(i0) _nop(_jit,i0)
# define NOP(i0) ii(0)
# define nop(i0) _nop(_jit,i0)
static void _nop(jit_state_t*,jit_int32_t);
# define h_ri(hc,rt,im) _hrri(_jit,hc,0,rt,im)
# define rrit(rt,rd,im,tc) _hrrrit(_jit,0,0,rt,rd,im,tc)
@ -769,8 +770,9 @@ _hi(jit_state_t *_jit, jit_int32_t hc, jit_int32_t im)
static void
_nop(jit_state_t *_jit, jit_int32_t i0)
{
while (i0--)
ii(0);
for (; i0 > 0; i0 -= 4)
NOP();
assert(i0 == 0);
}
static void