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tcg: Generalize TCGOp parameters

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We had two fields specific to INDEX_op_call. Rename these and
add some macros so that the fields may be reused for other opcodes.

Backports commit cd9090aa9dbba30db8aec9a2fc103aaf1ab0f5a7 from qemu
This commit is contained in:
Richard Henderson 2018-03-05 16:51:53 -05:00 committed by Lioncash
parent 7fe5f620df
commit 140058221d
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GPG key ID: 4E3C3CC1031BA9C7
3 changed files with 19 additions and 16 deletions
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4
qemu/tcg/optimize.c
View file

@ -627,8 +627,8 @@ void tcg_optimize(TCGContext *s)
/* Count the arguments, and initialize the temps that are
going to be used */
if (opc == INDEX_op_call) {
nb_oargs = op->callo;
nb_iargs = op->calli;
nb_oargs = TCGOP_CALLO(op);
nb_iargs = TCGOP_CALLI(op);
for (i = 0; i < nb_oargs + nb_iargs; i++) {
TCGTemp *ts = arg_temp(op->args[i]);
if (ts) {

22
qemu/tcg/tcg.c
View file

@ -1086,7 +1086,7 @@ void tcg_gen_callN(TCGContext *s, void *func, TCGTemp *ret, int nargs, TCGTemp *
} else {
nb_rets = 0;
}
op->callo = nb_rets;
TCGOP_CALLO(op) = nb_rets;
real_args = 0;
for (i = 0; i < nargs; i++) {
@ -1125,10 +1125,10 @@ void tcg_gen_callN(TCGContext *s, void *func, TCGTemp *ret, int nargs, TCGTemp *
}
op->args[pi++] = (uintptr_t)func;
op->args[pi++] = flags;
op->calli = real_args;
TCGOP_CALLI(op) = real_args;
/* Make sure the fields didn't overflow. */
tcg_debug_assert(op->calli == real_args);
tcg_debug_assert(TCGOP_CALLI(op) == real_args);
tcg_debug_assert(pi <= ARRAY_SIZE(op->args));
#if defined(__sparc__) && !defined(__arch64__) \
&& !defined(CONFIG_TCG_INTERPRETER)
@ -1345,8 +1345,8 @@ void tcg_dump_ops(TCGContext *s)
}
} else if (c == INDEX_op_call) {
/* variable number of arguments */
nb_oargs = op->callo;
nb_iargs = op->calli;
nb_oargs = TCGOP_CALLO(op);
nb_iargs = TCGOP_CALLI(op);
nb_cargs = def->nb_cargs;
/* function name, flags, out args */
@ -1732,8 +1732,8 @@ static void liveness_pass_1(TCGContext *s)
{
int call_flags;
nb_oargs = op->callo;
nb_iargs = op->calli;
nb_oargs = TCGOP_CALLO(op);
nb_iargs = TCGOP_CALLI(op);
call_flags = op->args[nb_oargs + nb_iargs + 1];
/* pure functions can be removed if their result is unused */
@ -1982,8 +1982,8 @@ static bool liveness_pass_2(TCGContext *s)
TCGTemp *arg_ts, *dir_ts;
if (opc == INDEX_op_call) {
nb_oargs = op->callo;
nb_iargs = op->calli;
nb_oargs = TCGOP_CALLO(op);
nb_iargs = TCGOP_CALLI(op);
call_flags = op->args[nb_oargs + nb_iargs + 1];
} else {
nb_iargs = def->nb_iargs;
@ -2663,8 +2663,8 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op)
static void tcg_reg_alloc_call(TCGContext *s, TCGOp *op)
{
const int nb_oargs = op->callo;
const int nb_iargs = op->calli;
const int nb_oargs = TCGOP_CALLO(op);
const int nb_iargs = TCGOP_CALLI(op);
const TCGLifeData arg_life = op->life;
int flags, nb_regs, i;
TCGReg reg;

9
qemu/tcg/tcg.h
View file

@ -570,9 +570,9 @@ typedef struct TCGOp {
TCGOpcode opc : 8; /* 8 */
/* The number of out and in parameter for a call. */
unsigned calli : 4; /* 12 */
unsigned callo : 2; /* 14 */
unsigned : 2; /* 16 */
/* Parameters for this opcode. See below. */
unsigned param1 : 4; /* 12 */
unsigned param2 : 4; /* 16 */
/* Lifetime data of the operands. */
unsigned life : 16; /* 32 */
@ -584,6 +584,9 @@ typedef struct TCGOp {
TCGArg args[MAX_OPC_PARAM];
} TCGOp;
#define TCGOP_CALLI(X) (X)->param1
#define TCGOP_CALLO(X) (X)->param2
/* Make sure operands fit in the bitfields above. */
QEMU_BUILD_BUG_ON(NB_OPS > (1 << 8));