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ppc/translate: Rewrite gen_lxvdsx to use gvec primitives 

Make the implementation match the lxvwsx one.
The code is now shorter smaller and potentially faster as the
translation will use the host SIMD capabilities if available.

No functional change.

Signed-off-by: Giuseppe Musacchio <thatlemon@gmail.com>
Message-Id: <a463dea379da4cb3a22de49c678932f74fb15dd7.1604912739.git.thatlemon@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Giuseppe Musacchio 2020-11-09 10:17:11 +01:00 committed by David Gibson
parent 91699dbf30
commit bcb0b7b1a1
1 changed files with 23 additions and 23 deletions
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46
target/ppc/translate/vsx-impl.c.inc
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@ -75,29 +75,6 @@ static void gen_lxvd2x(DisasContext *ctx)
tcg_temp_free_i64(t0);
}
static void gen_lxvdsx(DisasContext *ctx)
{
TCGv EA;
TCGv_i64 t0;
TCGv_i64 t1;
if (unlikely(!ctx->vsx_enabled)) {
gen_exception(ctx, POWERPC_EXCP_VSXU);
return;
}
t0 = tcg_temp_new_i64();
t1 = tcg_temp_new_i64();
gen_set_access_type(ctx, ACCESS_INT);
EA = tcg_temp_new();
gen_addr_reg_index(ctx, EA);
gen_qemu_ld64_i64(ctx, t0, EA);
set_cpu_vsrh(xT(ctx->opcode), t0);
tcg_gen_mov_i64(t1, t0);
set_cpu_vsrl(xT(ctx->opcode), t1);
tcg_temp_free(EA);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
}
static void gen_lxvw4x(DisasContext *ctx)
{
TCGv EA;
@ -169,6 +146,29 @@ static void gen_lxvwsx(DisasContext *ctx)
tcg_temp_free_i32(data);
}
static void gen_lxvdsx(DisasContext *ctx)
{
TCGv EA;
TCGv_i64 data;
if (unlikely(!ctx->vsx_enabled)) {
gen_exception(ctx, POWERPC_EXCP_VSXU);
return;
}
gen_set_access_type(ctx, ACCESS_INT);
EA = tcg_temp_new();
gen_addr_reg_index(ctx, EA);
data = tcg_temp_new_i64();
tcg_gen_qemu_ld_i64(data, EA, ctx->mem_idx, MO_TEQ);
tcg_gen_gvec_dup_i64(MO_Q, vsr_full_offset(xT(ctx->opcode)), 16, 16, data);
tcg_temp_free(EA);
tcg_temp_free_i64(data);
}
static void gen_bswap16x8(TCGv_i64 outh, TCGv_i64 outl,
TCGv_i64 inh, TCGv_i64 inl)
{