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Implement the qmul and qdiv instructions.

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2013-02-04 Paulo Andrade <pcpa@gnu.org>

	* include/lightning.h, include/lightning/jit_private.h,
	lib/jit_arm-cpu.c, lib/jit_arm.c, lib/jit_mips-cpu.c,
	lib/jit_mips.c, lib/jit_ppc-cpu.c, lib/jit_ppc.c,
	lib/jit_x86-cpu.c, lib/jit_x86.c, lib/lightning.c:
	Implement the new qmul and qdiv instructions that return signed
	and unsigned lo/hi multiplication result and div/rem division result.
	These should be useful for jit translation of code that needs to
	know if a multiplication overflows (no branch opcode added) or if
	a division is exact (easy check if remainder is zero).

	* check/lightning.c, lib/jit_print.c, check/Makefile.am,
	check/all.tst: Update for the new qmul and qdiv instructions.

	* check/qalu.inc, check/qalu_div.ok, check/qalu_div.tst,
	check/qalu_mul.ok, check/qalu_mul.tst: New files implementing
	simple test cases for qmul and qdiv.
This commit is contained in:
pcpa 2013-02-04 18:54:37 -02:00
parent 708cca9465
commit d91b25d1be
22 changed files with 1073 additions and 95 deletions
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18
lib/jit_mips.c
View file

@ -704,6 +704,16 @@ _emit_code(jit_state_t *_jit)
case jit_code_##name##i##type: \
name##i##type(rn(node->u.w), rn(node->v.w), node->w.w); \
break
#define case_rrrr(name, type) \
case jit_code_##name##r##type: \
name##r##type(rn(node->u.q.l), rn(node->u.q.h), \
rn(node->v.w), rn(node->w.w)); \
break
#define case_rrrw(name, type) \
case jit_code_##name##i##type: \
name##i##type(rn(node->u.q.l), rn(node->u.q.h), \
rn(node->v.w), node->w.w); \
break
#define case_rrf(name, type, size) \
case jit_code_##name##i##type: \
assert(node->flag & jit_flag_data); \
@ -785,10 +795,18 @@ _emit_code(jit_state_t *_jit)
case_rrw(subx,);
case_rrr(mul,);
case_rrw(mul,);
case_rrrr(qmul,);
case_rrrw(qmul,);
case_rrrr(qmul, _u);
case_rrrw(qmul, _u);
case_rrr(div,);
case_rrw(div,);
case_rrr(div, _u);
case_rrw(div, _u);
case_rrrr(qdiv,);
case_rrrw(qdiv,);
case_rrrr(qdiv, _u);
case_rrrw(qdiv, _u);
case_rrr(rem,);
case_rrw(rem,);
case_rrr(rem, _u);