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Re: [Qemu-devel] [PATCH 33/34] target/ppc: convert vadd*s and vsub*s to
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From: |
David Gibson |
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Subject: |
Re: [Qemu-devel] [PATCH 33/34] target/ppc: convert vadd*s and vsub*s to vector operations |
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Date: |
Wed, 19 Dec 2018 17:42:37 +1100 |
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User-agent: |
Mutt/1.10.1 (2018-07-13) |
On Mon, Dec 17, 2018 at 10:39:10PM -0800, Richard Henderson wrote:
> Signed-off-by: Richard Henderson <address@hidden>
Acked-by: David Gibson <address@hidden>
> ---
> target/ppc/helper.h | 24 ++++++------
> target/ppc/int_helper.c | 18 ++-------
> target/ppc/translate/vmx-impl.inc.c | 57 +++++++++++++++++++++++------
> 3 files changed, 61 insertions(+), 38 deletions(-)
>
> diff --git a/target/ppc/helper.h b/target/ppc/helper.h
> index 7dbb08b9dd..3daf6bf863 100644
> --- a/target/ppc/helper.h
> +++ b/target/ppc/helper.h
> @@ -219,18 +219,18 @@ DEF_HELPER_2(vprtybq, void, avr, avr)
> DEF_HELPER_3(vsubcuw, void, avr, avr, avr)
> DEF_HELPER_2(lvsl, void, avr, tl)
> DEF_HELPER_2(lvsr, void, avr, tl)
> -DEF_HELPER_4(vaddsbs, void, env, avr, avr, avr)
> -DEF_HELPER_4(vaddshs, void, env, avr, avr, avr)
> -DEF_HELPER_4(vaddsws, void, env, avr, avr, avr)
> -DEF_HELPER_4(vsubsbs, void, env, avr, avr, avr)
> -DEF_HELPER_4(vsubshs, void, env, avr, avr, avr)
> -DEF_HELPER_4(vsubsws, void, env, avr, avr, avr)
> -DEF_HELPER_4(vaddubs, void, env, avr, avr, avr)
> -DEF_HELPER_4(vadduhs, void, env, avr, avr, avr)
> -DEF_HELPER_4(vadduws, void, env, avr, avr, avr)
> -DEF_HELPER_4(vsububs, void, env, avr, avr, avr)
> -DEF_HELPER_4(vsubuhs, void, env, avr, avr, avr)
> -DEF_HELPER_4(vsubuws, void, env, avr, avr, avr)
> +DEF_HELPER_FLAGS_5(vaddsbs, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
> +DEF_HELPER_FLAGS_5(vaddshs, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
> +DEF_HELPER_FLAGS_5(vaddsws, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
> +DEF_HELPER_FLAGS_5(vsubsbs, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
> +DEF_HELPER_FLAGS_5(vsubshs, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
> +DEF_HELPER_FLAGS_5(vsubsws, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
> +DEF_HELPER_FLAGS_5(vaddubs, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
> +DEF_HELPER_FLAGS_5(vadduhs, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
> +DEF_HELPER_FLAGS_5(vadduws, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
> +DEF_HELPER_FLAGS_5(vsububs, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
> +DEF_HELPER_FLAGS_5(vsubuhs, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
> +DEF_HELPER_FLAGS_5(vsubuws, TCG_CALL_NO_RWG, void, avr, avr, avr, avr, i32)
> DEF_HELPER_3(vadduqm, void, avr, avr, avr)
> DEF_HELPER_4(vaddecuq, void, avr, avr, avr, avr)
> DEF_HELPER_4(vaddeuqm, void, avr, avr, avr, avr)
> diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c
> index 9dbcbcd87a..22671c71e5 100644
> --- a/target/ppc/int_helper.c
> +++ b/target/ppc/int_helper.c
> @@ -583,27 +583,17 @@ VARITHFPFMA(nmsubfp, float_muladd_negate_result |
> float_muladd_negate_c);
> }
>
> #define VARITHSAT_DO(name, op, optype, cvt, element) \
> - void helper_v##name(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, \
> - ppc_avr_t *b) \
> + void helper_v##name(ppc_avr_t *r, ppc_avr_t *vscr_sat, \
> + ppc_avr_t *a, ppc_avr_t *b, uint32_t desc) \
> { \
> int sat = 0; \
> int i; \
> \
> for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
> - switch (sizeof(r->element[0])) { \
> - case 1: \
> - VARITHSAT_CASE(optype, op, cvt, element); \
> - break; \
> - case 2: \
> - VARITHSAT_CASE(optype, op, cvt, element); \
> - break; \
> - case 4: \
> - VARITHSAT_CASE(optype, op, cvt, element); \
> - break; \
> - } \
> + VARITHSAT_CASE(optype, op, cvt, element); \
> } \
> if (sat) { \
> - set_vscr_sat(env); \
> + vscr_sat->u32[0] = 1; \
> } \
> }
> #define VARITHSAT_SIGNED(suffix, element, optype, cvt) \
> diff --git a/target/ppc/translate/vmx-impl.inc.c
> b/target/ppc/translate/vmx-impl.inc.c
> index 1c0c461241..c6a53a9f63 100644
> --- a/target/ppc/translate/vmx-impl.inc.c
> +++ b/target/ppc/translate/vmx-impl.inc.c
> @@ -548,22 +548,55 @@ GEN_VXFORM(vslo, 6, 16);
> GEN_VXFORM(vsro, 6, 17);
> GEN_VXFORM(vaddcuw, 0, 6);
> GEN_VXFORM(vsubcuw, 0, 22);
> -GEN_VXFORM_ENV(vaddubs, 0, 8);
> +
> +#define GEN_VXFORM_SAT(NAME, VECE, NORM, SAT, OPC2, OPC3) \
> +static void glue(glue(gen_, NAME), _vec)(unsigned vece, TCGv_vec t, \
> + TCGv_vec sat, TCGv_vec a, \
> + TCGv_vec b) \
> +{ \
> + TCGv_vec x = tcg_temp_new_vec_matching(t); \
> + glue(glue(tcg_gen_, NORM), _vec)(VECE, x, a, b); \
> + glue(glue(tcg_gen_, SAT), _vec)(VECE, t, a, b); \
> + tcg_gen_cmp_vec(TCG_COND_NE, VECE, x, x, t); \
> + tcg_gen_or_vec(VECE, sat, sat, x); \
> + tcg_temp_free_vec(x); \
> +} \
> +static void glue(gen_, NAME)(DisasContext *ctx) \
> +{ \
> + static const GVecGen4 g = { \
> + .fniv = glue(glue(gen_, NAME), _vec), \
> + .fno = glue(gen_helper_, NAME), \
> + .opc = glue(glue(INDEX_op_, NORM), _vec), \
> + .write_aofs = true, \
> + .vece = VECE, \
> + }; \
> + if (unlikely(!ctx->altivec_enabled)) { \
> + gen_exception(ctx, POWERPC_EXCP_VPU); \
> + return; \
> + } \
> + tcg_gen_gvec_4(avr64_offset(rD(ctx->opcode), true), \
> + offsetof(CPUPPCState, vscr_sat), \
> + avr64_offset(rA(ctx->opcode), true), \
> + avr64_offset(rB(ctx->opcode), true), \
> + 16, 16, &g); \
> +}
> +
> +GEN_VXFORM_SAT(vaddubs, MO_8, add, usadd, 0, 8);
> GEN_VXFORM_DUAL_EXT(vaddubs, PPC_ALTIVEC, PPC_NONE, 0, \
> vmul10uq, PPC_NONE, PPC2_ISA300, 0x0000F800)
> -GEN_VXFORM_ENV(vadduhs, 0, 9);
> +GEN_VXFORM_SAT(vadduhs, MO_16, add, usadd, 0, 9);
> GEN_VXFORM_DUAL(vadduhs, PPC_ALTIVEC, PPC_NONE, \
> vmul10euq, PPC_NONE, PPC2_ISA300)
> -GEN_VXFORM_ENV(vadduws, 0, 10);
> -GEN_VXFORM_ENV(vaddsbs, 0, 12);
> -GEN_VXFORM_ENV(vaddshs, 0, 13);
> -GEN_VXFORM_ENV(vaddsws, 0, 14);
> -GEN_VXFORM_ENV(vsububs, 0, 24);
> -GEN_VXFORM_ENV(vsubuhs, 0, 25);
> -GEN_VXFORM_ENV(vsubuws, 0, 26);
> -GEN_VXFORM_ENV(vsubsbs, 0, 28);
> -GEN_VXFORM_ENV(vsubshs, 0, 29);
> -GEN_VXFORM_ENV(vsubsws, 0, 30);
> +GEN_VXFORM_SAT(vadduws, MO_32, add, usadd, 0, 10);
> +GEN_VXFORM_SAT(vaddsbs, MO_8, add, ssadd, 0, 12);
> +GEN_VXFORM_SAT(vaddshs, MO_16, add, ssadd, 0, 13);
> +GEN_VXFORM_SAT(vaddsws, MO_32, add, ssadd, 0, 14);
> +GEN_VXFORM_SAT(vsububs, MO_8, sub, ussub, 0, 24);
> +GEN_VXFORM_SAT(vsubuhs, MO_16, sub, ussub, 0, 25);
> +GEN_VXFORM_SAT(vsubuws, MO_32, sub, ussub, 0, 26);
> +GEN_VXFORM_SAT(vsubsbs, MO_8, sub, sssub, 0, 28);
> +GEN_VXFORM_SAT(vsubshs, MO_16, sub, sssub, 0, 29);
> +GEN_VXFORM_SAT(vsubsws, MO_32, sub, sssub, 0, 30);
> GEN_VXFORM(vadduqm, 0, 4);
> GEN_VXFORM(vaddcuq, 0, 5);
> GEN_VXFORM3(vaddeuqm, 30, 0);
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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- [Qemu-devel] [PATCH 02/34] target/arm: Rely on optimization within tcg_gen_gvec_or, (continued)
- [Qemu-devel] [PATCH 02/34] target/arm: Rely on optimization within tcg_gen_gvec_or, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 14/34] target/ppc: switch FPR, VMX and VSX helpers to access data directly from cpu_env, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 27/34] target/ppc: Use helper_mtvscr for reset and gdb, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 29/34] target/ppc: Add helper_mfvscr, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 07/34] tcg: Add opcodes for vector minmax arithmetic, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 33/34] target/ppc: convert vadd*s and vsub*s to vector operations, Richard Henderson, 2018/12/18
- Re: [Qemu-devel] [PATCH 33/34] target/ppc: convert vadd*s and vsub*s to vector operations,
David Gibson <=
- [Qemu-devel] [PATCH 23/34] target/ppc: convert xxspltib to vector operations, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 19/34] target/ppc: convert vspltis[bhw] to use vector operations, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 20/34] target/ppc: convert vsplt[bhw] to use vector operations, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 16/34] target/ppc: move FP and VMX registers into aligned vsr register array, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 24/34] target/ppc: convert xxspltw to vector operations, Richard Henderson, 2018/12/18