yuzu/unicorn
1
0
Fork 0
mirror of https://github.com/yuzu-emu/unicorn.git synced 2025-01-10 21:15:35 +00:00
Code Issues Packages Projects Releases Wiki Activity

target/arm: Remove fp_status from helper_{recpe, rsqrte}_u32

Browse source 
These operations do not touch fp_status.

Backports commit fe6fb4beb2f9bb0afc813e565504b66a92bbf04b from qemu
This commit is contained in:
Richard Henderson 2020-05-15 21:32:02 -04:00 committed by Lioncash
parent 9dfc0479ff
commit efdcad70b1
4 changed files with 8 additions and 18 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
qemu/target/arm/helper.h
View file

@ -207,8 +207,8 @@ DEF_HELPER_FLAGS_2(recpe_f64, TCG_CALL_NO_RWG, f64, f64, ptr)
DEF_HELPER_FLAGS_2(rsqrte_f16, TCG_CALL_NO_RWG, f16, f16, ptr)
DEF_HELPER_FLAGS_2(rsqrte_f32, TCG_CALL_NO_RWG, f32, f32, ptr)
DEF_HELPER_FLAGS_2(rsqrte_f64, TCG_CALL_NO_RWG, f64, f64, ptr)
DEF_HELPER_2(recpe_u32, i32, i32, ptr)
DEF_HELPER_FLAGS_2(rsqrte_u32, TCG_CALL_NO_RWG, i32, i32, ptr)
DEF_HELPER_FLAGS_1(recpe_u32, TCG_CALL_NO_RWG, i32, i32)
DEF_HELPER_FLAGS_1(rsqrte_u32, TCG_CALL_NO_RWG, i32, i32)
DEF_HELPER_FLAGS_4(neon_tbl, TCG_CALL_NO_RWG, i32, i32, i32, ptr, i32)
DEF_HELPER_3(shl_cc, i32, env, i32, i32)

5
qemu/target/arm/translate-a64.c
View file

@ -9978,7 +9978,7 @@ static void handle_2misc_reciprocal(DisasContext *s, int opcode,
switch (opcode) {
case 0x3c: /* URECPE */
gen_helper_recpe_u32(tcg_ctx, tcg_res, tcg_op, fpst);
gen_helper_recpe_u32(tcg_ctx, tcg_res, tcg_op);
break;
case 0x3d: /* FRECPE */
gen_helper_recpe_f32(tcg_ctx, tcg_res, tcg_op, fpst);
@ -12545,7 +12545,6 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn)
unallocated_encoding(s);
return;
}
need_fpstatus = true;
break;
case 0x1e: /* FRINT32Z */
case 0x1f: /* FRINT64Z */
@ -12713,7 +12712,7 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn)
gen_helper_rints_exact(tcg_ctx, tcg_res, tcg_op, tcg_fpstatus);
break;
case 0x7c: /* URSQRTE */
gen_helper_rsqrte_u32(tcg_ctx, tcg_res, tcg_op, tcg_fpstatus);
gen_helper_rsqrte_u32(tcg_ctx, tcg_res, tcg_op);
break;
case 0x1e: /* FRINT32Z */
case 0x5e: /* FRINT32X */

12
qemu/target/arm/translate.c
View file

@ -7003,19 +7003,11 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
break;
}
case NEON_2RM_VRECPE:
{
TCGv_ptr fpstatus = get_fpstatus_ptr(s, 1);
gen_helper_recpe_u32(tcg_ctx, tmp, tmp, fpstatus);
tcg_temp_free_ptr(tcg_ctx, fpstatus);
gen_helper_recpe_u32(tcg_ctx, tmp, tmp);
break;
}
case NEON_2RM_VRSQRTE:
{
TCGv_ptr fpstatus = get_fpstatus_ptr(s, 1);
gen_helper_rsqrte_u32(tcg_ctx, tmp, tmp, fpstatus);
tcg_temp_free_ptr(tcg_ctx, fpstatus);
gen_helper_rsqrte_u32(tcg_ctx, tmp, tmp);
break;
}
case NEON_2RM_VRECPE_F:
{
TCGv_ptr fpstatus = get_fpstatus_ptr(s, 1);

5
qemu/target/arm/vfp_helper.c
View file

@ -1044,9 +1044,8 @@ float64 HELPER(rsqrte_f64)(float64 input, void *fpstp)
return make_float64(val);
}
uint32_t HELPER(recpe_u32)(uint32_t a, void *fpstp)
uint32_t HELPER(recpe_u32)(uint32_t a)
{
/* float_status *s = fpstp; */
int input, estimate;
if ((a & 0x80000000) == 0) {
@ -1059,7 +1058,7 @@ uint32_t HELPER(recpe_u32)(uint32_t a, void *fpstp)
return deposit32(0, (32 - 9), 9, estimate);
}
uint32_t HELPER(rsqrte_u32)(uint32_t a, void *fpstp)
uint32_t HELPER(rsqrte_u32)(uint32_t a)
{
int estimate;