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Implement the jit_align interface

Browse source 
* 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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9
lib/lightning.c
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@ -1177,9 +1177,9 @@ _jit_classify(jit_state_t *_jit, jit_code_t code)
jit_int32_t mask;
switch (code) {
case jit_code_data: case jit_code_save: case jit_code_load:
case jit_code_name: case jit_code_label: case jit_code_note:
case jit_code_prolog: case jit_code_epilog:
case jit_code_data: case jit_code_align: case jit_code_save:
case jit_code_load: case jit_code_name: case jit_code_label:
case jit_code_note: case jit_code_prolog: case jit_code_epilog:
mask = 0;
break;
case jit_code_live:
@ -2395,7 +2395,8 @@ _redundant_jump(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node)
return (1);
}
break;
case jit_code_note:
case jit_code_name: case jit_code_note:
case jit_code_align:
break;
default:
return (0);