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target-ppc: Use mul*2 in mulh* insns 

Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Richard Henderson 2013-02-19 23:52:12 -08:00 committed by Blue Swirl
parent bf45f97133
commit 23ad1d5d3c
3 changed files with 38 additions and 64 deletions
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2
target-ppc/helper.h
View File

@ -30,8 +30,6 @@ DEF_HELPER_2(icbi, void, env, tl)
DEF_HELPER_5(lscbx, tl, env, tl, i32, i32, i32)
#if defined(TARGET_PPC64)
DEF_HELPER_FLAGS_2(mulhd, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_FLAGS_2(mulhdu, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_3(mulldo, i64, env, i64, i64)
#endif

18
target-ppc/int_helper.c
View File

@ -25,24 +25,6 @@
/* Fixed point operations helpers */
#if defined(TARGET_PPC64)
/* multiply high word */
uint64_t helper_mulhd(uint64_t arg1, uint64_t arg2)
{
uint64_t tl, th;
muls64(&tl, &th, arg1, arg2);
return th;
}
/* multiply high word unsigned */
uint64_t helper_mulhdu(uint64_t arg1, uint64_t arg2)
{
uint64_t tl, th;
mulu64(&tl, &th, arg1, arg2);
return th;
}
uint64_t helper_mulldo(CPUPPCState *env, uint64_t arg1, uint64_t arg2)
{
int64_t th;

82
target-ppc/translate.c
View File

@ -1061,24 +1061,15 @@ GEN_INT_ARITH_DIVD(divdo, 0x1F, 1, 1);
/* mulhw mulhw. */
static void gen_mulhw(DisasContext *ctx)
{
TCGv_i64 t0, t1;
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_i32 t1 = tcg_temp_new_i32();
t0 = tcg_temp_new_i64();
t1 = tcg_temp_new_i64();
#if defined(TARGET_PPC64)
tcg_gen_ext32s_tl(t0, cpu_gpr[rA(ctx->opcode)]);
tcg_gen_ext32s_tl(t1, cpu_gpr[rB(ctx->opcode)]);
tcg_gen_mul_i64(t0, t0, t1);
tcg_gen_shri_i64(cpu_gpr[rD(ctx->opcode)], t0, 32);
#else
tcg_gen_ext_tl_i64(t0, cpu_gpr[rA(ctx->opcode)]);
tcg_gen_ext_tl_i64(t1, cpu_gpr[rB(ctx->opcode)]);
tcg_gen_mul_i64(t0, t0, t1);
tcg_gen_shri_i64(t0, t0, 32);
tcg_gen_trunc_i64_tl(cpu_gpr[rD(ctx->opcode)], t0);
#endif
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
tcg_gen_trunc_tl_i32(t0, cpu_gpr[rA(ctx->opcode)]);
tcg_gen_trunc_tl_i32(t1, cpu_gpr[rB(ctx->opcode)]);
tcg_gen_muls2_i32(t0, t1, t0, t1);
tcg_gen_extu_i32_tl(cpu_gpr[rD(ctx->opcode)], t1);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
if (unlikely(Rc(ctx->opcode) != 0))
gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]);
}
@ -1086,24 +1077,15 @@ static void gen_mulhw(DisasContext *ctx)
/* mulhwu mulhwu. */
static void gen_mulhwu(DisasContext *ctx)
{
TCGv_i64 t0, t1;
TCGv_i32 t0 = tcg_temp_new_i32();
TCGv_i32 t1 = tcg_temp_new_i32();
t0 = tcg_temp_new_i64();
t1 = tcg_temp_new_i64();
#if defined(TARGET_PPC64)
tcg_gen_ext32u_i64(t0, cpu_gpr[rA(ctx->opcode)]);
tcg_gen_ext32u_i64(t1, cpu_gpr[rB(ctx->opcode)]);
tcg_gen_mul_i64(t0, t0, t1);
tcg_gen_shri_i64(cpu_gpr[rD(ctx->opcode)], t0, 32);
#else
tcg_gen_extu_tl_i64(t0, cpu_gpr[rA(ctx->opcode)]);
tcg_gen_extu_tl_i64(t1, cpu_gpr[rB(ctx->opcode)]);
tcg_gen_mul_i64(t0, t0, t1);
tcg_gen_shri_i64(t0, t0, 32);
tcg_gen_trunc_i64_tl(cpu_gpr[rD(ctx->opcode)], t0);
#endif
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
tcg_gen_trunc_tl_i32(t0, cpu_gpr[rA(ctx->opcode)]);
tcg_gen_trunc_tl_i32(t1, cpu_gpr[rB(ctx->opcode)]);
tcg_gen_mulu2_i32(t0, t1, t0, t1);
tcg_gen_extu_i32_tl(cpu_gpr[rD(ctx->opcode)], t1);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
if (unlikely(Rc(ctx->opcode) != 0))
gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]);
}
@ -1159,19 +1141,31 @@ static void gen_mulli(DisasContext *ctx)
tcg_gen_muli_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)],
SIMM(ctx->opcode));
}
#if defined(TARGET_PPC64)
#define GEN_INT_ARITH_MUL_HELPER(name, opc3) \
static void glue(gen_, name)(DisasContext *ctx) \
{ \
gen_helper_##name (cpu_gpr[rD(ctx->opcode)], \
cpu_gpr[rA(ctx->opcode)], cpu_gpr[rB(ctx->opcode)]); \
if (unlikely(Rc(ctx->opcode) != 0)) \
gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]); \
}
/* mulhd mulhd. */
GEN_INT_ARITH_MUL_HELPER(mulhdu, 0x00);
static void gen_mulhd(DisasContext *ctx)
{
TCGv lo = tcg_temp_new();
tcg_gen_muls2_tl(lo, cpu_gpr[rD(ctx->opcode)],
cpu_gpr[rA(ctx->opcode)], cpu_gpr[rB(ctx->opcode)]);
tcg_temp_free(lo);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]);
}
}
/* mulhdu mulhdu. */
GEN_INT_ARITH_MUL_HELPER(mulhd, 0x02);
static void gen_mulhdu(DisasContext *ctx)
{
TCGv lo = tcg_temp_new();
tcg_gen_mulu2_tl(lo, cpu_gpr[rD(ctx->opcode)],
cpu_gpr[rA(ctx->opcode)], cpu_gpr[rB(ctx->opcode)]);
tcg_temp_free(lo);
if (unlikely(Rc(ctx->opcode) != 0)) {
gen_set_Rc0(ctx, cpu_gpr[rD(ctx->opcode)]);
}
}
/* mulld mulld. */
static void gen_mulld(DisasContext *ctx)