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Implement the jit_align interface

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* 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
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10
lib/jit_ppc-cpu.c
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@ -451,6 +451,8 @@ static void _FXS(jit_state_t*,int,int,int,int,int,int,int);
# define XOR_(d,a,b) FXO_(31,a,d,b,0,316)
# define XORI(s,a,u) FDu(26,s,a,u)
# define XORIS(s,a,u) FDu(27,s,a,u)
# define nop(c) _nop(_jit,c)
static void _nop(jit_state_t*,jit_int32_t);
# define movr(r0,r1) _movr(_jit,r0,r1)
static void _movr(jit_state_t*,jit_int32_t,jit_int32_t);
# define movi(r0,i0) _movi(_jit,r0,i0)
@ -976,6 +978,14 @@ _FXS(jit_state_t *_jit, int o, int s, int a, int h, int x, int i, int r)
}
#endif
static void
_nop(jit_state_t *_jit, jit_int32_t i0)
{
for (; i0 > 0; i0 -= 4)
NOP();
assert(i0 == 0);
}
static void
_movr(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1)
{