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tcg: Make call address a constant parameter

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Avoid allocating a tcg temporary to hold the constant address,
and instead place it directly into the op_call arguments.

At the same time, convert to the newly introduced tcg_out_call
backend function, rather than invoking tcg_out_op for the call.

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2014-03-22 20:06:52 -07:00
parent dddbb2e1e3
commit cf06667428
5 changed files with 72 additions and 152 deletions
Download patch file Download diff file Expand all files Collapse all files

16
tcg/tcg-op.h
View file

@ -390,11 +390,7 @@ static inline int tcg_gen_sizemask(int n, int is_64bit, int is_signed)
static inline void tcg_gen_helperN(void *func, int flags, int sizemask,
TCGArg ret, int nargs, TCGArg *args)
{
TCGv_ptr fn;
fn = tcg_const_ptr(func);
tcg_gen_callN(&tcg_ctx, fn, flags, sizemask, ret,
nargs, args);
tcg_temp_free_ptr(fn);
tcg_gen_callN(&tcg_ctx, func, flags, sizemask, ret, nargs, args);
}
/* Note: Both tcg_gen_helper32() and tcg_gen_helper64() are currently
@ -405,29 +401,23 @@ static inline void tcg_gen_helperN(void *func, int flags, int sizemask,
static inline void tcg_gen_helper32(void *func, int sizemask, TCGv_i32 ret,
TCGv_i32 a, TCGv_i32 b)
{
TCGv_ptr fn;
TCGArg args[2];
fn = tcg_const_ptr(func);
args[0] = GET_TCGV_I32(a);
args[1] = GET_TCGV_I32(b);
tcg_gen_callN(&tcg_ctx, fn,
tcg_gen_callN(&tcg_ctx, func,
TCG_CALL_NO_READ_GLOBALS | TCG_CALL_NO_SIDE_EFFECTS,
sizemask, GET_TCGV_I32(ret), 2, args);
tcg_temp_free_ptr(fn);
}
static inline void tcg_gen_helper64(void *func, int sizemask, TCGv_i64 ret,
TCGv_i64 a, TCGv_i64 b)
{
TCGv_ptr fn;
TCGArg args[2];
fn = tcg_const_ptr(func);
args[0] = GET_TCGV_I64(a);
args[1] = GET_TCGV_I64(b);
tcg_gen_callN(&tcg_ctx, fn,
tcg_gen_callN(&tcg_ctx, func,
TCG_CALL_NO_READ_GLOBALS | TCG_CALL_NO_SIDE_EFFECTS,
sizemask, GET_TCGV_I64(ret), 2, args);
tcg_temp_free_ptr(fn);
}
/* 32 bit ops */