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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
Download patch file Download diff file Expand all files Collapse all files

22
lib/jit_print.c
View file

@ -48,8 +48,12 @@ static char *code_name[] = {
"subcr", "subci",
"subxr", "subxi",
"mulr", "muli",
"qmulr", "qmuli",
"qmulr_u", "qmuli_u",
"divr", "divi",
"divr_u", "divi_u",
"qdivr", "qdivi",
"qdivr_u", "qdivi_u",
"remr", "remi",
"remr_u", "remi_u",
"andr", "andi",
@ -248,7 +252,7 @@ _jit_print(jit_state_t *_jit)
continue;
}
value = jit_classify(node->code) &
(jit_cc_a0_int|jit_cc_a0_jmp|jit_cc_a0_reg|
(jit_cc_a0_int|jit_cc_a0_jmp|jit_cc_a0_reg|jit_cc_a0_rlh|
jit_cc_a1_reg|jit_cc_a1_int|jit_cc_a1_flt|jit_cc_a1_dbl|
jit_cc_a2_reg|jit_cc_a2_int|jit_cc_a2_flt|jit_cc_a2_dbl);
if (value & jit_cc_a0_jmp)
@ -303,6 +307,16 @@ _jit_print(jit_state_t *_jit)
print_chr(' '); print_reg(node->u.w);
print_chr(' '); print_reg(node->v.w);
print_chr(' '); print_hex(node->w.w); continue;
q_r_r:
print_str(" ("); print_reg(node->u.q.l);
print_chr(' '); print_reg(node->u.q.h);
print_str(") "); print_reg(node->v.w);
print_chr(' '); print_reg(node->w.w); continue;
q_r_w:
print_str(" ("); print_reg(node->u.q.l);
print_chr(' '); print_reg(node->u.q.h);
print_str(") "); print_reg(node->v.w);
print_chr(' '); print_hex(node->w.w); continue;
r_r_f:
print_chr(' '); print_reg(node->u.w);
print_chr(' '); print_reg(node->v.w);
@ -419,6 +433,12 @@ _jit_print(jit_state_t *_jit)
goto r_r_r;
case jit_cc_a0_reg|jit_cc_a1_reg|jit_cc_a2_int:
goto r_r_w;
case jit_cc_a0_reg|jit_cc_a0_rlh|
jit_cc_a1_reg|jit_cc_a2_reg:
goto q_r_r;
case jit_cc_a0_reg|jit_cc_a0_rlh|
jit_cc_a1_reg|jit_cc_a2_int:
goto q_r_w;
case jit_cc_a0_reg|jit_cc_a1_reg|jit_cc_a2_flt:
goto r_r_f;
case jit_cc_a0_reg|jit_cc_a1_reg|jit_cc_a2_dbl: