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authorPeter Maydell <peter.maydell@linaro.org>2011-05-25 13:49:19 +0000
committerPeter Maydell <peter.maydell@linaro.org>2011-06-22 15:01:36 +0000
commitaa47cfdd178d8ea96b6e2f550742ddbb445fdacb (patch)
tree44c8f46930d492076fb1a0cb9009f32d57b95c95 /target-arm/translate.c
parentae1857eca22b58d430941730bd097e95a484652c (diff)
target-arm: Pass fp status pointer explicitly to neon fp helpers
Make the Neon helpers for various floating point operations take an explicit pointer to the float_status they use, so they don't rely on the global environment pointer any more. This also allows us to drop the mul/sub/add helpers completely and just use the vfp versions. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm/translate.c')
-rw-r--r--target-arm/translate.c111
1 files changed, 81 insertions, 30 deletions
diff --git a/target-arm/translate.c b/target-arm/translate.c
index 9ed747f36..27d988733 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -4857,57 +4857,78 @@ static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn)
}
break;
case NEON_3R_FLOAT_ARITH: /* Floating point arithmetic. */
+ {
+ TCGv_ptr fpstatus = get_fpstatus_ptr(1);
switch ((u << 2) | size) {
case 0: /* VADD */
- gen_helper_neon_add_f32(tmp, tmp, tmp2);
+ case 4: /* VPADD */
+ gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus);
break;
case 2: /* VSUB */
- gen_helper_neon_sub_f32(tmp, tmp, tmp2);
- break;
- case 4: /* VPADD */
- gen_helper_neon_add_f32(tmp, tmp, tmp2);
+ gen_helper_vfp_subs(tmp, tmp, tmp2, fpstatus);
break;
case 6: /* VABD */
- gen_helper_neon_abd_f32(tmp, tmp, tmp2);
+ gen_helper_neon_abd_f32(tmp, tmp, tmp2, fpstatus);
break;
default:
abort();
}
+ tcg_temp_free_ptr(fpstatus);
break;
+ }
case NEON_3R_FLOAT_MULTIPLY:
- gen_helper_neon_mul_f32(tmp, tmp, tmp2);
+ {
+ TCGv_ptr fpstatus = get_fpstatus_ptr(1);
+ gen_helper_vfp_muls(tmp, tmp, tmp2, fpstatus);
if (!u) {
tcg_temp_free_i32(tmp2);
tmp2 = neon_load_reg(rd, pass);
if (size == 0) {
- gen_helper_neon_add_f32(tmp, tmp, tmp2);
+ gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus);
} else {
- gen_helper_neon_sub_f32(tmp, tmp2, tmp);
+ gen_helper_vfp_subs(tmp, tmp2, tmp, fpstatus);
}
}
+ tcg_temp_free_ptr(fpstatus);
break;
+ }
case NEON_3R_FLOAT_CMP:
+ {
+ TCGv_ptr fpstatus = get_fpstatus_ptr(1);
if (!u) {
- gen_helper_neon_ceq_f32(tmp, tmp, tmp2);
+ gen_helper_neon_ceq_f32(tmp, tmp, tmp2, fpstatus);
} else {
- if (size == 0)
- gen_helper_neon_cge_f32(tmp, tmp, tmp2);
- else
- gen_helper_neon_cgt_f32(tmp, tmp, tmp2);
+ if (size == 0) {
+ gen_helper_neon_cge_f32(tmp, tmp, tmp2, fpstatus);
+ } else {
+ gen_helper_neon_cgt_f32(tmp, tmp, tmp2, fpstatus);
+ }
}
+ tcg_temp_free_ptr(fpstatus);
break;
+ }
case NEON_3R_FLOAT_ACMP:
- if (size == 0)
- gen_helper_neon_acge_f32(tmp, tmp, tmp2);
- else
- gen_helper_neon_acgt_f32(tmp, tmp, tmp2);
+ {
+ TCGv_ptr fpstatus = get_fpstatus_ptr(1);
+ if (size == 0) {
+ gen_helper_neon_acge_f32(tmp, tmp, tmp2, fpstatus);
+ } else {
+ gen_helper_neon_acgt_f32(tmp, tmp, tmp2, fpstatus);
+ }
+ tcg_temp_free_ptr(fpstatus);
break;
+ }
case NEON_3R_FLOAT_MINMAX:
- if (size == 0)
- gen_helper_neon_max_f32(tmp, tmp, tmp2);
- else
- gen_helper_neon_min_f32(tmp, tmp, tmp2);
+ {
+ TCGv_ptr fpstatus = get_fpstatus_ptr(1);
+ if (size == 0) {
+ gen_helper_neon_max_f32(tmp, tmp, tmp2, fpstatus);
+ } else {
+ gen_helper_neon_min_f32(tmp, tmp, tmp2, fpstatus);
+ }
+ tcg_temp_free_ptr(fpstatus);
break;
+ }
case NEON_3R_VRECPS_VRSQRTS:
if (size == 0)
gen_helper_recps_f32(tmp, tmp, tmp2, cpu_env);
@@ -5606,7 +5627,9 @@ static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn)
gen_helper_neon_qrdmulh_s32(tmp, tmp, tmp2);
}
} else if (op & 1) {
- gen_helper_neon_mul_f32(tmp, tmp, tmp2);
+ TCGv_ptr fpstatus = get_fpstatus_ptr(1);
+ gen_helper_vfp_muls(tmp, tmp, tmp2, fpstatus);
+ tcg_temp_free_ptr(fpstatus);
} else {
switch (size) {
case 0: gen_helper_neon_mul_u8(tmp, tmp, tmp2); break;
@@ -5624,14 +5647,22 @@ static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn)
gen_neon_add(size, tmp, tmp2);
break;
case 1:
- gen_helper_neon_add_f32(tmp, tmp, tmp2);
+ {
+ TCGv_ptr fpstatus = get_fpstatus_ptr(1);
+ gen_helper_vfp_adds(tmp, tmp, tmp2, fpstatus);
+ tcg_temp_free_ptr(fpstatus);
break;
+ }
case 4:
gen_neon_rsb(size, tmp, tmp2);
break;
case 5:
- gen_helper_neon_sub_f32(tmp, tmp2, tmp);
+ {
+ TCGv_ptr fpstatus = get_fpstatus_ptr(1);
+ gen_helper_vfp_subs(tmp, tmp2, tmp, fpstatus);
+ tcg_temp_free_ptr(fpstatus);
break;
+ }
default:
abort();
}
@@ -6029,30 +6060,50 @@ static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn)
tcg_temp_free(tmp2);
break;
case NEON_2RM_VCGT0_F:
+ {
+ TCGv_ptr fpstatus = get_fpstatus_ptr(1);
tmp2 = tcg_const_i32(0);
- gen_helper_neon_cgt_f32(tmp, tmp, tmp2);
+ gen_helper_neon_cgt_f32(tmp, tmp, tmp2, fpstatus);
tcg_temp_free(tmp2);
+ tcg_temp_free_ptr(fpstatus);
break;
+ }
case NEON_2RM_VCGE0_F:
+ {
+ TCGv_ptr fpstatus = get_fpstatus_ptr(1);
tmp2 = tcg_const_i32(0);
- gen_helper_neon_cge_f32(tmp, tmp, tmp2);
+ gen_helper_neon_cge_f32(tmp, tmp, tmp2, fpstatus);
tcg_temp_free(tmp2);
+ tcg_temp_free_ptr(fpstatus);
break;
+ }
case NEON_2RM_VCEQ0_F:
+ {
+ TCGv_ptr fpstatus = get_fpstatus_ptr(1);
tmp2 = tcg_const_i32(0);
- gen_helper_neon_ceq_f32(tmp, tmp, tmp2);
+ gen_helper_neon_ceq_f32(tmp, tmp, tmp2, fpstatus);
tcg_temp_free(tmp2);
+ tcg_temp_free_ptr(fpstatus);
break;
+ }
case NEON_2RM_VCLE0_F:
+ {
+ TCGv_ptr fpstatus = get_fpstatus_ptr(1);
tmp2 = tcg_const_i32(0);
- gen_helper_neon_cge_f32(tmp, tmp2, tmp);
+ gen_helper_neon_cge_f32(tmp, tmp2, tmp, fpstatus);
tcg_temp_free(tmp2);
+ tcg_temp_free_ptr(fpstatus);
break;
+ }
case NEON_2RM_VCLT0_F:
+ {
+ TCGv_ptr fpstatus = get_fpstatus_ptr(1);
tmp2 = tcg_const_i32(0);
- gen_helper_neon_cgt_f32(tmp, tmp2, tmp);
+ gen_helper_neon_cgt_f32(tmp, tmp2, tmp, fpstatus);
tcg_temp_free(tmp2);
+ tcg_temp_free_ptr(fpstatus);
break;
+ }
case NEON_2RM_VABS_F:
gen_vfp_abs(0);
break;