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target/ppc: Use tcg_gen_abs_tl 

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2019-04-17 14:45:47 -10:00
parent d577dbaac7
commit fe21b785ff
1 changed files with 24 additions and 44 deletions
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68
target/ppc/translate.c
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@ -5075,40 +5075,26 @@ static void gen_ecowx(DisasContext *ctx)
/* abs - abs. */
static void gen_abs(DisasContext *ctx)
{
TCGLabel *l1 = gen_new_label();
TCGLabel *l2 = gen_new_label();
tcg_gen_brcondi_tl(TCG_COND_GE, cpu_gpr[rA(ctx->opcode)], 0, l1);
tcg_gen_neg_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]);
tcg_gen_br(l2);
gen_set_label(l1);
tcg_gen_mov_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]);
gen_set_label(l2);
TCGv d = cpu_gpr[rD(ctx->opcode)];
TCGv a = cpu_gpr[rA(ctx->opcode)];
tcg_gen_abs_tl(d, a);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]);
gen_set_Rc0(ctx, d);
}
}
/* abso - abso. */
static void gen_abso(DisasContext *ctx)
{
TCGLabel *l1 = gen_new_label();
TCGLabel *l2 = gen_new_label();
TCGLabel *l3 = gen_new_label();
/* Start with XER OV disabled, the most likely case */
tcg_gen_movi_tl(cpu_ov, 0);
tcg_gen_brcondi_tl(TCG_COND_GE, cpu_gpr[rA(ctx->opcode)], 0, l2);
tcg_gen_brcondi_tl(TCG_COND_NE, cpu_gpr[rA(ctx->opcode)], 0x80000000, l1);
tcg_gen_movi_tl(cpu_ov, 1);
tcg_gen_movi_tl(cpu_so, 1);
tcg_gen_br(l2);
gen_set_label(l1);
tcg_gen_neg_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]);
tcg_gen_br(l3);
gen_set_label(l2);
tcg_gen_mov_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]);
gen_set_label(l3);
TCGv d = cpu_gpr[rD(ctx->opcode)];
TCGv a = cpu_gpr[rA(ctx->opcode)];
tcg_gen_setcondi_tl(TCG_COND_EQ, cpu_ov, a, 0x80000000);
tcg_gen_abs_tl(d, a);
tcg_gen_or_tl(cpu_so, cpu_so, cpu_ov);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]);
gen_set_Rc0(ctx, d);
}
}
@ -5344,34 +5330,28 @@ static void gen_mulo(DisasContext *ctx)
/* nabs - nabs. */
static void gen_nabs(DisasContext *ctx)
{
TCGLabel *l1 = gen_new_label();
TCGLabel *l2 = gen_new_label();
tcg_gen_brcondi_tl(TCG_COND_GT, cpu_gpr[rA(ctx->opcode)], 0, l1);
tcg_gen_mov_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]);
tcg_gen_br(l2);
gen_set_label(l1);
tcg_gen_neg_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]);
gen_set_label(l2);
TCGv d = cpu_gpr[rD(ctx->opcode)];
TCGv a = cpu_gpr[rA(ctx->opcode)];
tcg_gen_abs_tl(d, a);
tcg_gen_neg_tl(d, d);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]);
gen_set_Rc0(ctx, d);
}
}
/* nabso - nabso. */
static void gen_nabso(DisasContext *ctx)
{
TCGLabel *l1 = gen_new_label();
TCGLabel *l2 = gen_new_label();
tcg_gen_brcondi_tl(TCG_COND_GT, cpu_gpr[rA(ctx->opcode)], 0, l1);
tcg_gen_mov_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]);
tcg_gen_br(l2);
gen_set_label(l1);
tcg_gen_neg_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]);
gen_set_label(l2);
TCGv d = cpu_gpr[rD(ctx->opcode)];
TCGv a = cpu_gpr[rA(ctx->opcode)];
tcg_gen_abs_tl(d, a);
tcg_gen_neg_tl(d, d);
/* nabs never overflows */
tcg_gen_movi_tl(cpu_ov, 0);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]);
gen_set_Rc0(ctx, d);
}
}