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target/ppc: Optimize xviexpdp() using deposit_i64() 

The t0 tcg_temp register is now unused, remove it.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20190309214255.9952-2-f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Philippe Mathieu-Daudé 2019-03-09 22:42:54 +01:00 committed by David Gibson
parent da874d90ad
commit cde0a41c12
1 changed files with 3 additions and 11 deletions
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14
target/ppc/translate/vsx-impl.inc.c
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@ -1695,7 +1695,6 @@ static void gen_xviexpdp(DisasContext *ctx)
TCGv_i64 xal;
TCGv_i64 xbh;
TCGv_i64 xbl;
TCGv_i64 t0;
if (unlikely(!ctx->vsx_enabled)) {
gen_exception(ctx, POWERPC_EXCP_VSXU);
@ -1711,20 +1710,13 @@ static void gen_xviexpdp(DisasContext *ctx)
get_cpu_vsrl(xal, xA(ctx->opcode));
get_cpu_vsrh(xbh, xB(ctx->opcode));
get_cpu_vsrl(xbl, xB(ctx->opcode));
t0 = tcg_temp_new_i64();
tcg_gen_andi_i64(xth, xah, 0x800FFFFFFFFFFFFF);
tcg_gen_andi_i64(t0, xbh, 0x7FF);
tcg_gen_shli_i64(t0, t0, 52);
tcg_gen_or_i64(xth, xth, t0);
tcg_gen_deposit_i64(xth, xah, xbh, 52, 11);
set_cpu_vsrh(xT(ctx->opcode), xth);
tcg_gen_andi_i64(xtl, xal, 0x800FFFFFFFFFFFFF);
tcg_gen_andi_i64(t0, xbl, 0x7FF);
tcg_gen_shli_i64(t0, t0, 52);
tcg_gen_or_i64(xtl, xtl, t0);
tcg_gen_deposit_i64(xtl, xal, xbl, 52, 11);
set_cpu_vsrl(xT(ctx->opcode), xtl);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(xth);
tcg_temp_free_i64(xtl);
tcg_temp_free_i64(xah);