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author | Richard Henderson <richard.henderson@linaro.org> | 2017-12-21 10:58:36 -0800 |
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committer | Richard Henderson <richard.henderson@linaro.org> | 2018-02-08 15:54:06 +0000 |
commit | 22fc3527034678489ec554e82fd52f8a7f05418e (patch) | |
tree | 64a840926a20ab6a6229bcd6fe1fe36af14aed4d /tcg/tcg-op-gvec.c | |
parent | f49b12c6e6a75a5bd109bcbbda072b24e5fb8dfd (diff) | |
download | qemu-22fc3527034678489ec554e82fd52f8a7f05418e.zip qemu-22fc3527034678489ec554e82fd52f8a7f05418e.tar.gz qemu-22fc3527034678489ec554e82fd52f8a7f05418e.tar.bz2 |
tcg: Add generic vector helpers with a scalar operand
Use dup to convert a non-constant scalar to a third vector.
Add addition, multiplication, and logical operations with an immediate.
Add addition, subtraction, multiplication, and logical operations with
a non-constant scalar. Allow for the front-end to build operations in
which the scalar operand comes first.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/tcg-op-gvec.c')
-rw-r--r-- | tcg/tcg-op-gvec.c | 361 |
1 files changed, 360 insertions, 1 deletions
diff --git a/tcg/tcg-op-gvec.c b/tcg/tcg-op-gvec.c index 843bb5b..bfe44bb 100644 --- a/tcg/tcg-op-gvec.c +++ b/tcg/tcg-op-gvec.c @@ -104,6 +104,28 @@ void tcg_gen_gvec_2_ool(uint32_t dofs, uint32_t aofs, tcg_temp_free_i32(desc); } +/* Generate a call to a gvec-style helper with two vector operands + and one scalar operand. */ +void tcg_gen_gvec_2i_ool(uint32_t dofs, uint32_t aofs, TCGv_i64 c, + uint32_t oprsz, uint32_t maxsz, int32_t data, + gen_helper_gvec_2i *fn) +{ + TCGv_ptr a0, a1; + TCGv_i32 desc = tcg_const_i32(simd_desc(oprsz, maxsz, data)); + + a0 = tcg_temp_new_ptr(); + a1 = tcg_temp_new_ptr(); + + tcg_gen_addi_ptr(a0, cpu_env, dofs); + tcg_gen_addi_ptr(a1, cpu_env, aofs); + + fn(a0, a1, c, desc); + + tcg_temp_free_ptr(a0); + tcg_temp_free_ptr(a1); + tcg_temp_free_i32(desc); +} + /* Generate a call to a gvec-style helper with three vector operands. */ void tcg_gen_gvec_3_ool(uint32_t dofs, uint32_t aofs, uint32_t bofs, uint32_t oprsz, uint32_t maxsz, int32_t data, @@ -555,6 +577,27 @@ static void expand_2i_i32(uint32_t dofs, uint32_t aofs, uint32_t oprsz, tcg_temp_free_i32(t1); } +static void expand_2s_i32(uint32_t dofs, uint32_t aofs, uint32_t oprsz, + TCGv_i32 c, bool scalar_first, + void (*fni)(TCGv_i32, TCGv_i32, TCGv_i32)) +{ + TCGv_i32 t0 = tcg_temp_new_i32(); + TCGv_i32 t1 = tcg_temp_new_i32(); + uint32_t i; + + for (i = 0; i < oprsz; i += 4) { + tcg_gen_ld_i32(t0, cpu_env, aofs + i); + if (scalar_first) { + fni(t1, c, t0); + } else { + fni(t1, t0, c); + } + tcg_gen_st_i32(t1, cpu_env, dofs + i); + } + tcg_temp_free_i32(t0); + tcg_temp_free_i32(t1); +} + /* Expand OPSZ bytes worth of three-operand operations using i32 elements. */ static void expand_3_i32(uint32_t dofs, uint32_t aofs, uint32_t bofs, uint32_t oprsz, bool load_dest, @@ -638,6 +681,27 @@ static void expand_2i_i64(uint32_t dofs, uint32_t aofs, uint32_t oprsz, tcg_temp_free_i64(t1); } +static void expand_2s_i64(uint32_t dofs, uint32_t aofs, uint32_t oprsz, + TCGv_i64 c, bool scalar_first, + void (*fni)(TCGv_i64, TCGv_i64, TCGv_i64)) +{ + TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_new_i64(); + uint32_t i; + + for (i = 0; i < oprsz; i += 8) { + tcg_gen_ld_i64(t0, cpu_env, aofs + i); + if (scalar_first) { + fni(t1, c, t0); + } else { + fni(t1, t0, c); + } + tcg_gen_st_i64(t1, cpu_env, dofs + i); + } + tcg_temp_free_i64(t0); + tcg_temp_free_i64(t1); +} + /* Expand OPSZ bytes worth of three-operand operations using i64 elements. */ static void expand_3_i64(uint32_t dofs, uint32_t aofs, uint32_t bofs, uint32_t oprsz, bool load_dest, @@ -725,6 +789,28 @@ static void expand_2i_vec(unsigned vece, uint32_t dofs, uint32_t aofs, tcg_temp_free_vec(t1); } +static void expand_2s_vec(unsigned vece, uint32_t dofs, uint32_t aofs, + uint32_t oprsz, uint32_t tysz, TCGType type, + TCGv_vec c, bool scalar_first, + void (*fni)(unsigned, TCGv_vec, TCGv_vec, TCGv_vec)) +{ + TCGv_vec t0 = tcg_temp_new_vec(type); + TCGv_vec t1 = tcg_temp_new_vec(type); + uint32_t i; + + for (i = 0; i < oprsz; i += tysz) { + tcg_gen_ld_vec(t0, cpu_env, aofs + i); + if (scalar_first) { + fni(vece, t1, c, t0); + } else { + fni(vece, t1, t0, c); + } + tcg_gen_st_vec(t1, cpu_env, dofs + i); + } + tcg_temp_free_vec(t0); + tcg_temp_free_vec(t1); +} + /* Expand OPSZ bytes worth of three-operand operations using host vectors. */ static void expand_3_vec(unsigned vece, uint32_t dofs, uint32_t aofs, uint32_t bofs, uint32_t oprsz, @@ -828,6 +914,7 @@ void tcg_gen_gvec_2(uint32_t dofs, uint32_t aofs, } } +/* Expand a vector operation with two vectors and an immediate. */ void tcg_gen_gvec_2i(uint32_t dofs, uint32_t aofs, uint32_t oprsz, uint32_t maxsz, int64_t c, const GVecGen2i *g) { @@ -867,7 +954,13 @@ void tcg_gen_gvec_2i(uint32_t dofs, uint32_t aofs, uint32_t oprsz, } else if (g->fni4 && check_size_impl(oprsz, 4)) { expand_2i_i32(dofs, aofs, oprsz, c, g->load_dest, g->fni4); } else { - tcg_gen_gvec_2_ool(dofs, aofs, oprsz, maxsz, c, g->fno); + if (g->fno) { + tcg_gen_gvec_2_ool(dofs, aofs, oprsz, maxsz, c, g->fno); + } else { + TCGv_i64 tcg_c = tcg_const_i64(c); + tcg_gen_gvec_2i_ool(dofs, aofs, tcg_c, oprsz, maxsz, c, g->fnoi); + tcg_temp_free_i64(tcg_c); + } return; } @@ -877,6 +970,87 @@ void tcg_gen_gvec_2i(uint32_t dofs, uint32_t aofs, uint32_t oprsz, } } +/* Expand a vector operation with two vectors and a scalar. */ +void tcg_gen_gvec_2s(uint32_t dofs, uint32_t aofs, uint32_t oprsz, + uint32_t maxsz, TCGv_i64 c, const GVecGen2s *g) +{ + TCGType type; + + check_size_align(oprsz, maxsz, dofs | aofs); + check_overlap_2(dofs, aofs, maxsz); + + type = 0; + if (g->fniv) { + if (TCG_TARGET_HAS_v256 && check_size_impl(oprsz, 32)) { + type = TCG_TYPE_V256; + } else if (TCG_TARGET_HAS_v128 && check_size_impl(oprsz, 16)) { + type = TCG_TYPE_V128; + } else if (TCG_TARGET_HAS_v64 && !g->prefer_i64 + && check_size_impl(oprsz, 8)) { + type = TCG_TYPE_V64; + } + } + if (type != 0) { + TCGv_vec t_vec = tcg_temp_new_vec(type); + + tcg_gen_dup_i64_vec(g->vece, t_vec, c); + + /* Recall that ARM SVE allows vector sizes that are not a power of 2. + Expand with successively smaller host vector sizes. The intent is + that e.g. oprsz == 80 would be expanded with 2x32 + 1x16. */ + switch (type) { + case TCG_TYPE_V256: + { + uint32_t some = QEMU_ALIGN_DOWN(oprsz, 32); + expand_2s_vec(g->vece, dofs, aofs, some, 32, TCG_TYPE_V256, + t_vec, g->scalar_first, g->fniv); + if (some == oprsz) { + break; + } + dofs += some; + aofs += some; + oprsz -= some; + maxsz -= some; + } + /* fallthru */ + + case TCG_TYPE_V128: + expand_2s_vec(g->vece, dofs, aofs, oprsz, 16, TCG_TYPE_V128, + t_vec, g->scalar_first, g->fniv); + break; + + case TCG_TYPE_V64: + expand_2s_vec(g->vece, dofs, aofs, oprsz, 8, TCG_TYPE_V64, + t_vec, g->scalar_first, g->fniv); + break; + + default: + g_assert_not_reached(); + } + tcg_temp_free_vec(t_vec); + } else if (g->fni8 && check_size_impl(oprsz, 8)) { + TCGv_i64 t64 = tcg_temp_new_i64(); + + gen_dup_i64(g->vece, t64, c); + expand_2s_i64(dofs, aofs, oprsz, t64, g->scalar_first, g->fni8); + tcg_temp_free_i64(t64); + } else if (g->fni4 && check_size_impl(oprsz, 4)) { + TCGv_i32 t32 = tcg_temp_new_i32(); + + tcg_gen_extrl_i64_i32(t32, c); + gen_dup_i32(g->vece, t32, t32); + expand_2s_i32(dofs, aofs, oprsz, t32, g->scalar_first, g->fni4); + tcg_temp_free_i32(t32); + } else { + tcg_gen_gvec_2i_ool(dofs, aofs, c, oprsz, maxsz, 0, g->fno); + return; + } + + if (oprsz < maxsz) { + expand_clr(dofs + oprsz, maxsz - oprsz); + } +} + /* Expand a vector three-operand operation. */ void tcg_gen_gvec_3(uint32_t dofs, uint32_t aofs, uint32_t bofs, uint32_t oprsz, uint32_t maxsz, const GVecGen3 *g) @@ -1201,6 +1375,76 @@ void tcg_gen_gvec_add(unsigned vece, uint32_t dofs, uint32_t aofs, tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g[vece]); } +void tcg_gen_gvec_adds(unsigned vece, uint32_t dofs, uint32_t aofs, + TCGv_i64 c, uint32_t oprsz, uint32_t maxsz) +{ + static const GVecGen2s g[4] = { + { .fni8 = tcg_gen_vec_add8_i64, + .fniv = tcg_gen_add_vec, + .fno = gen_helper_gvec_adds8, + .opc = INDEX_op_add_vec, + .vece = MO_8 }, + { .fni8 = tcg_gen_vec_add16_i64, + .fniv = tcg_gen_add_vec, + .fno = gen_helper_gvec_adds16, + .opc = INDEX_op_add_vec, + .vece = MO_16 }, + { .fni4 = tcg_gen_add_i32, + .fniv = tcg_gen_add_vec, + .fno = gen_helper_gvec_adds32, + .opc = INDEX_op_add_vec, + .vece = MO_32 }, + { .fni8 = tcg_gen_add_i64, + .fniv = tcg_gen_add_vec, + .fno = gen_helper_gvec_adds64, + .opc = INDEX_op_add_vec, + .prefer_i64 = TCG_TARGET_REG_BITS == 64, + .vece = MO_64 }, + }; + + tcg_debug_assert(vece <= MO_64); + tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, c, &g[vece]); +} + +void tcg_gen_gvec_addi(unsigned vece, uint32_t dofs, uint32_t aofs, + int64_t c, uint32_t oprsz, uint32_t maxsz) +{ + TCGv_i64 tmp = tcg_const_i64(c); + tcg_gen_gvec_adds(vece, dofs, aofs, tmp, oprsz, maxsz); + tcg_temp_free_i64(tmp); +} + +void tcg_gen_gvec_subs(unsigned vece, uint32_t dofs, uint32_t aofs, + TCGv_i64 c, uint32_t oprsz, uint32_t maxsz) +{ + static const GVecGen2s g[4] = { + { .fni8 = tcg_gen_vec_sub8_i64, + .fniv = tcg_gen_sub_vec, + .fno = gen_helper_gvec_subs8, + .opc = INDEX_op_sub_vec, + .vece = MO_8 }, + { .fni8 = tcg_gen_vec_sub16_i64, + .fniv = tcg_gen_sub_vec, + .fno = gen_helper_gvec_subs16, + .opc = INDEX_op_sub_vec, + .vece = MO_16 }, + { .fni4 = tcg_gen_sub_i32, + .fniv = tcg_gen_sub_vec, + .fno = gen_helper_gvec_subs32, + .opc = INDEX_op_sub_vec, + .vece = MO_32 }, + { .fni8 = tcg_gen_sub_i64, + .fniv = tcg_gen_sub_vec, + .fno = gen_helper_gvec_subs64, + .opc = INDEX_op_sub_vec, + .prefer_i64 = TCG_TARGET_REG_BITS == 64, + .vece = MO_64 }, + }; + + tcg_debug_assert(vece <= MO_64); + tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, c, &g[vece]); +} + /* Perform a vector subtraction using normal subtraction and a mask. Compare gen_addv_mask above. */ static void gen_subv_mask(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b, TCGv_i64 m) @@ -1309,6 +1553,43 @@ void tcg_gen_gvec_mul(unsigned vece, uint32_t dofs, uint32_t aofs, tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g[vece]); } +void tcg_gen_gvec_muls(unsigned vece, uint32_t dofs, uint32_t aofs, + TCGv_i64 c, uint32_t oprsz, uint32_t maxsz) +{ + static const GVecGen2s g[4] = { + { .fniv = tcg_gen_mul_vec, + .fno = gen_helper_gvec_muls8, + .opc = INDEX_op_mul_vec, + .vece = MO_8 }, + { .fniv = tcg_gen_mul_vec, + .fno = gen_helper_gvec_muls16, + .opc = INDEX_op_mul_vec, + .vece = MO_16 }, + { .fni4 = tcg_gen_mul_i32, + .fniv = tcg_gen_mul_vec, + .fno = gen_helper_gvec_muls32, + .opc = INDEX_op_mul_vec, + .vece = MO_32 }, + { .fni8 = tcg_gen_mul_i64, + .fniv = tcg_gen_mul_vec, + .fno = gen_helper_gvec_muls64, + .opc = INDEX_op_mul_vec, + .prefer_i64 = TCG_TARGET_REG_BITS == 64, + .vece = MO_64 }, + }; + + tcg_debug_assert(vece <= MO_64); + tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, c, &g[vece]); +} + +void tcg_gen_gvec_muli(unsigned vece, uint32_t dofs, uint32_t aofs, + int64_t c, uint32_t oprsz, uint32_t maxsz) +{ + TCGv_i64 tmp = tcg_const_i64(c); + tcg_gen_gvec_muls(vece, dofs, aofs, tmp, oprsz, maxsz); + tcg_temp_free_i64(tmp); +} + void tcg_gen_gvec_ssadd(unsigned vece, uint32_t dofs, uint32_t aofs, uint32_t bofs, uint32_t oprsz, uint32_t maxsz) { @@ -1541,6 +1822,84 @@ void tcg_gen_gvec_orc(unsigned vece, uint32_t dofs, uint32_t aofs, tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g); } +static const GVecGen2s gop_ands = { + .fni8 = tcg_gen_and_i64, + .fniv = tcg_gen_and_vec, + .fno = gen_helper_gvec_ands, + .opc = INDEX_op_and_vec, + .prefer_i64 = TCG_TARGET_REG_BITS == 64, + .vece = MO_64 +}; + +void tcg_gen_gvec_ands(unsigned vece, uint32_t dofs, uint32_t aofs, + TCGv_i64 c, uint32_t oprsz, uint32_t maxsz) +{ + TCGv_i64 tmp = tcg_temp_new_i64(); + gen_dup_i64(vece, tmp, c); + tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, tmp, &gop_ands); + tcg_temp_free_i64(tmp); +} + +void tcg_gen_gvec_andi(unsigned vece, uint32_t dofs, uint32_t aofs, + int64_t c, uint32_t oprsz, uint32_t maxsz) +{ + TCGv_i64 tmp = tcg_const_i64(dup_const(vece, c)); + tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, tmp, &gop_ands); + tcg_temp_free_i64(tmp); +} + +static const GVecGen2s gop_xors = { + .fni8 = tcg_gen_xor_i64, + .fniv = tcg_gen_xor_vec, + .fno = gen_helper_gvec_xors, + .opc = INDEX_op_xor_vec, + .prefer_i64 = TCG_TARGET_REG_BITS == 64, + .vece = MO_64 +}; + +void tcg_gen_gvec_xors(unsigned vece, uint32_t dofs, uint32_t aofs, + TCGv_i64 c, uint32_t oprsz, uint32_t maxsz) +{ + TCGv_i64 tmp = tcg_temp_new_i64(); + gen_dup_i64(vece, tmp, c); + tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, tmp, &gop_xors); + tcg_temp_free_i64(tmp); +} + +void tcg_gen_gvec_xori(unsigned vece, uint32_t dofs, uint32_t aofs, + int64_t c, uint32_t oprsz, uint32_t maxsz) +{ + TCGv_i64 tmp = tcg_const_i64(dup_const(vece, c)); + tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, tmp, &gop_xors); + tcg_temp_free_i64(tmp); +} + +static const GVecGen2s gop_ors = { + .fni8 = tcg_gen_or_i64, + .fniv = tcg_gen_or_vec, + .fno = gen_helper_gvec_ors, + .opc = INDEX_op_or_vec, + .prefer_i64 = TCG_TARGET_REG_BITS == 64, + .vece = MO_64 +}; + +void tcg_gen_gvec_ors(unsigned vece, uint32_t dofs, uint32_t aofs, + TCGv_i64 c, uint32_t oprsz, uint32_t maxsz) +{ + TCGv_i64 tmp = tcg_temp_new_i64(); + gen_dup_i64(vece, tmp, c); + tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, tmp, &gop_ors); + tcg_temp_free_i64(tmp); +} + +void tcg_gen_gvec_ori(unsigned vece, uint32_t dofs, uint32_t aofs, + int64_t c, uint32_t oprsz, uint32_t maxsz) +{ + TCGv_i64 tmp = tcg_const_i64(dup_const(vece, c)); + tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, tmp, &gop_ors); + tcg_temp_free_i64(tmp); +} + void tcg_gen_vec_shl8i_i64(TCGv_i64 d, TCGv_i64 a, int64_t c) { uint64_t mask = dup_const(MO_8, 0xff << c); |