[PULL,01/12] tcg: Implement gvec support for rotate by immediate

Message ID	20200602170151.321389-2-richard.henderson@linaro.org
State	New
Headers	show Delivered-To: patch@linaro.org Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; From: Richard Henderson <richard.henderson@linaro.org> To: qemu-devel@nongnu.org Subject: [PULL 01/12] tcg: Implement gvec support for rotate by immediate Date: Tue, 2 Jun 2020 10:01:40 -0700 Message-Id: <20200602170151.321389-2-richard.henderson@linaro.org> In-Reply-To: <20200602170151.321389-1-richard.henderson@linaro.org> References: <20200602170151.321389-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::635; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x635.google.com Precedence: list Cc: peter.maydell@linaro.org, =?utf-8?q?Alex_Benn=C3=A9e?= <alex.bennee@linaro.org> Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+patch=linaro.org@nongnu.org>
Series	tcg patch queue \| expand [PULL,00/12] tcg patch queue [PULL,01/12] tcg: Implement gvec support for rotate by immediate [PULL,02/12] tcg: Implement gvec support for rotate by vector [PULL,03/12] tcg: Remove expansion to shift by vector from do_shifts [PULL,04/12] tcg: Implement gvec support for rotate by scalar [PULL,05/12] tcg/i386: Implement INDEX_op_rotl{i,s,v}_vec [PULL,06/12] tcg/aarch64: Implement INDEX_op_rotl{i,v}_vec [PULL,07/12] tcg/ppc: Implement INDEX_op_rot[lr]v_vec [PULL,08/12] target/ppc: Use tcg_gen_gvec_rotlv [PULL,09/12] target/s390x: Use tcg_gen_gvec_rotl{i,s,v} [PULL,10/12] tcg: Improve move ops in liveness_pass_2 [PULL,11/12] accel/tcg: Adjust cpu_signal_handler for NetBSD/arm [PULL,12/12] accel/tcg: Provide a NetBSD specific aarch64 cpu_signal_handler

diff --git a/accel/tcg/tcg-runtime.h b/accel/tcg/tcg-runtime.h index 4fa61b49b4..cf10c8361e 100644 --- a/accel/tcg/tcg-runtime.h +++ b/accel/tcg/tcg-runtime.h @@ -259,6 +259,11 @@ DEF_HELPER_FLAGS_3(gvec_sar16i, TCG_CALL_NO_RWG, void, ptr, ptr, i32) DEF_HELPER_FLAGS_3(gvec_sar32i, TCG_CALL_NO_RWG, void, ptr, ptr, i32) DEF_HELPER_FLAGS_3(gvec_sar64i, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(gvec_rotl8i, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(gvec_rotl16i, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(gvec_rotl32i, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(gvec_rotl64i, TCG_CALL_NO_RWG, void, ptr, ptr, i32) + DEF_HELPER_FLAGS_4(gvec_shl8v, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_4(gvec_shl16v, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_4(gvec_shl32v, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) diff --git a/include/tcg/tcg-op-gvec.h b/include/tcg/tcg-op-gvec.h index cea6497341..1afc3ebf03 100644 --- a/include/tcg/tcg-op-gvec.h +++ b/include/tcg/tcg-op-gvec.h @@ -334,6 +334,10 @@ void tcg_gen_gvec_shri(unsigned vece, uint32_t dofs, uint32_t aofs, int64_t shift, uint32_t oprsz, uint32_t maxsz); void tcg_gen_gvec_sari(unsigned vece, uint32_t dofs, uint32_t aofs, int64_t shift, uint32_t oprsz, uint32_t maxsz); +void tcg_gen_gvec_rotli(unsigned vece, uint32_t dofs, uint32_t aofs, + int64_t shift, uint32_t oprsz, uint32_t maxsz); +void tcg_gen_gvec_rotri(unsigned vece, uint32_t dofs, uint32_t aofs, + int64_t shift, uint32_t oprsz, uint32_t maxsz); void tcg_gen_gvec_shls(unsigned vece, uint32_t dofs, uint32_t aofs, TCGv_i32 shift, uint32_t oprsz, uint32_t maxsz); @@ -388,5 +392,7 @@ void tcg_gen_vec_shr8i_i64(TCGv_i64 d, TCGv_i64 a, int64_t); void tcg_gen_vec_shr16i_i64(TCGv_i64 d, TCGv_i64 a, int64_t); void tcg_gen_vec_sar8i_i64(TCGv_i64 d, TCGv_i64 a, int64_t); void tcg_gen_vec_sar16i_i64(TCGv_i64 d, TCGv_i64 a, int64_t); +void tcg_gen_vec_rotl8i_i64(TCGv_i64 d, TCGv_i64 a, int64_t c); +void tcg_gen_vec_rotl16i_i64(TCGv_i64 d, TCGv_i64 a, int64_t c); #endif diff --git a/include/tcg/tcg-op.h b/include/tcg/tcg-op.h index e3399d6a5e..848d91ce74 100644 --- a/include/tcg/tcg-op.h +++ b/include/tcg/tcg-op.h @@ -999,6 +999,8 @@ void tcg_gen_umax_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b); void tcg_gen_shli_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i); void tcg_gen_shri_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i); void tcg_gen_sari_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i); +void tcg_gen_rotli_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i); +void tcg_gen_rotri_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i); void tcg_gen_shls_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_i32 s); void tcg_gen_shrs_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_i32 s); diff --git a/include/tcg/tcg-opc.h b/include/tcg/tcg-opc.h index 9288a04946..a6ab4a147f 100644 --- a/include/tcg/tcg-opc.h +++ b/include/tcg/tcg-opc.h @@ -248,6 +248,7 @@ DEF(not_vec, 1, 1, 0, IMPLVEC | IMPL(TCG_TARGET_HAS_not_vec)) DEF(shli_vec, 1, 1, 1, IMPLVEC | IMPL(TCG_TARGET_HAS_shi_vec)) DEF(shri_vec, 1, 1, 1, IMPLVEC | IMPL(TCG_TARGET_HAS_shi_vec)) DEF(sari_vec, 1, 1, 1, IMPLVEC | IMPL(TCG_TARGET_HAS_shi_vec)) +DEF(rotli_vec, 1, 1, 1, IMPLVEC | IMPL(TCG_TARGET_HAS_roti_vec)) DEF(shls_vec, 1, 2, 0, IMPLVEC | IMPL(TCG_TARGET_HAS_shs_vec)) DEF(shrs_vec, 1, 2, 0, IMPLVEC | IMPL(TCG_TARGET_HAS_shs_vec)) diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index c48bd76b0a..56bedbd03b 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -182,6 +182,7 @@ typedef uint64_t TCGRegSet; #define TCG_TARGET_HAS_not_vec 0 #define TCG_TARGET_HAS_andc_vec 0 #define TCG_TARGET_HAS_orc_vec 0 +#define TCG_TARGET_HAS_roti_vec 0 #define TCG_TARGET_HAS_shi_vec 0 #define TCG_TARGET_HAS_shs_vec 0 #define TCG_TARGET_HAS_shv_vec 0 diff --git a/tcg/aarch64/tcg-target.h b/tcg/aarch64/tcg-target.h index ca214f6909..225a597f84 100644 --- a/tcg/aarch64/tcg-target.h +++ b/tcg/aarch64/tcg-target.h @@ -133,6 +133,7 @@ typedef enum { #define TCG_TARGET_HAS_not_vec 1 #define TCG_TARGET_HAS_neg_vec 1 #define TCG_TARGET_HAS_abs_vec 1 +#define TCG_TARGET_HAS_roti_vec 0 #define TCG_TARGET_HAS_shi_vec 1 #define TCG_TARGET_HAS_shs_vec 0 #define TCG_TARGET_HAS_shv_vec 1 diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h index bfb3f5f6e9..23aabde992 100644 --- a/tcg/i386/tcg-target.h +++ b/tcg/i386/tcg-target.h @@ -183,6 +183,7 @@ extern bool have_avx2; #define TCG_TARGET_HAS_not_vec 0 #define TCG_TARGET_HAS_neg_vec 0 #define TCG_TARGET_HAS_abs_vec 1 +#define TCG_TARGET_HAS_roti_vec 0 #define TCG_TARGET_HAS_shi_vec 1 #define TCG_TARGET_HAS_shs_vec 1 #define TCG_TARGET_HAS_shv_vec have_avx2 diff --git a/tcg/ppc/tcg-target.h b/tcg/ppc/tcg-target.h index 4fa21f0e71..e57b891aa5 100644 --- a/tcg/ppc/tcg-target.h +++ b/tcg/ppc/tcg-target.h @@ -161,6 +161,7 @@ extern bool have_vsx; #define TCG_TARGET_HAS_not_vec 1 #define TCG_TARGET_HAS_neg_vec have_isa_3_00 #define TCG_TARGET_HAS_abs_vec 0 +#define TCG_TARGET_HAS_roti_vec 0 #define TCG_TARGET_HAS_shi_vec 0 #define TCG_TARGET_HAS_shs_vec 0 #define TCG_TARGET_HAS_shv_vec 1 diff --git a/accel/tcg/tcg-runtime-gvec.c b/accel/tcg/tcg-runtime-gvec.c index ca449702e6..34b1030365 100644 --- a/accel/tcg/tcg-runtime-gvec.c +++ b/accel/tcg/tcg-runtime-gvec.c @@ -716,6 +716,54 @@ void HELPER(gvec_sar64i)(void *d, void *a, uint32_t desc) clear_high(d, oprsz, desc); } +void HELPER(gvec_rotl8i)(void *d, void *a, uint32_t desc) +{ + intptr_t oprsz = simd_oprsz(desc); + int shift = simd_data(desc); + intptr_t i; + + for (i = 0; i < oprsz; i += sizeof(uint8_t)) { + *(uint8_t *)(d + i) = rol8(*(uint8_t *)(a + i), shift); + } + clear_high(d, oprsz, desc); +} + +void HELPER(gvec_rotl16i)(void *d, void *a, uint32_t desc) +{ + intptr_t oprsz = simd_oprsz(desc); + int shift = simd_data(desc); + intptr_t i; + + for (i = 0; i < oprsz; i += sizeof(uint16_t)) { + *(uint16_t *)(d + i) = rol16(*(uint16_t *)(a + i), shift); + } + clear_high(d, oprsz, desc); +} + +void HELPER(gvec_rotl32i)(void *d, void *a, uint32_t desc) +{ + intptr_t oprsz = simd_oprsz(desc); + int shift = simd_data(desc); + intptr_t i; + + for (i = 0; i < oprsz; i += sizeof(uint32_t)) { + *(uint32_t *)(d + i) = rol32(*(uint32_t *)(a + i), shift); + } + clear_high(d, oprsz, desc); +} + +void HELPER(gvec_rotl64i)(void *d, void *a, uint32_t desc) +{ + intptr_t oprsz = simd_oprsz(desc); + int shift = simd_data(desc); + intptr_t i; + + for (i = 0; i < oprsz; i += sizeof(uint64_t)) { + *(uint64_t *)(d + i) = rol64(*(uint64_t *)(a + i), shift); + } + clear_high(d, oprsz, desc); +} + void HELPER(gvec_shl8v)(void *d, void *a, void *b, uint32_t desc) { intptr_t oprsz = simd_oprsz(desc); diff --git a/tcg/tcg-op-gvec.c b/tcg/tcg-op-gvec.c index 049a55e700..25300b1577 100644 --- a/tcg/tcg-op-gvec.c +++ b/tcg/tcg-op-gvec.c @@ -2694,6 +2694,74 @@ void tcg_gen_gvec_sari(unsigned vece, uint32_t dofs, uint32_t aofs, } } +void tcg_gen_vec_rotl8i_i64(TCGv_i64 d, TCGv_i64 a, int64_t c) +{ + uint64_t mask = dup_const(MO_8, 0xff << c); + + tcg_gen_shli_i64(d, a, c); + tcg_gen_shri_i64(a, a, 8 - c); + tcg_gen_andi_i64(d, d, mask); + tcg_gen_andi_i64(a, a, ~mask); + tcg_gen_or_i64(d, d, a); +} + +void tcg_gen_vec_rotl16i_i64(TCGv_i64 d, TCGv_i64 a, int64_t c) +{ + uint64_t mask = dup_const(MO_16, 0xffff << c); + + tcg_gen_shli_i64(d, a, c); + tcg_gen_shri_i64(a, a, 16 - c); + tcg_gen_andi_i64(d, d, mask); + tcg_gen_andi_i64(a, a, ~mask); + tcg_gen_or_i64(d, d, a); +} + +void tcg_gen_gvec_rotli(unsigned vece, uint32_t dofs, uint32_t aofs, + int64_t shift, uint32_t oprsz, uint32_t maxsz) +{ + static const TCGOpcode vecop_list[] = { INDEX_op_rotli_vec, 0 }; + static const GVecGen2i g[4] = { + { .fni8 = tcg_gen_vec_rotl8i_i64, + .fniv = tcg_gen_rotli_vec, + .fno = gen_helper_gvec_rotl8i, + .opt_opc = vecop_list, + .vece = MO_8 }, + { .fni8 = tcg_gen_vec_rotl16i_i64, + .fniv = tcg_gen_rotli_vec, + .fno = gen_helper_gvec_rotl16i, + .opt_opc = vecop_list, + .vece = MO_16 }, + { .fni4 = tcg_gen_rotli_i32, + .fniv = tcg_gen_rotli_vec, + .fno = gen_helper_gvec_rotl32i, + .opt_opc = vecop_list, + .vece = MO_32 }, + { .fni8 = tcg_gen_rotli_i64, + .fniv = tcg_gen_rotli_vec, + .fno = gen_helper_gvec_rotl64i, + .opt_opc = vecop_list, + .prefer_i64 = TCG_TARGET_REG_BITS == 64, + .vece = MO_64 }, + }; + + tcg_debug_assert(vece <= MO_64); + tcg_debug_assert(shift >= 0 && shift < (8 << vece)); + if (shift == 0) { + tcg_gen_gvec_mov(vece, dofs, aofs, oprsz, maxsz); + } else { + tcg_gen_gvec_2i(dofs, aofs, oprsz, maxsz, shift, &g[vece]); + } +} + +void tcg_gen_gvec_rotri(unsigned vece, uint32_t dofs, uint32_t aofs, + int64_t shift, uint32_t oprsz, uint32_t maxsz) +{ + tcg_debug_assert(vece <= MO_64); + tcg_debug_assert(shift >= 0 && shift < (8 << vece)); + tcg_gen_gvec_rotli(vece, dofs, aofs, -shift & ((8 << vece) - 1), + oprsz, maxsz); +} + /* * Specialized generation vector shifts by a non-constant scalar. */ diff --git a/tcg/tcg-op-vec.c b/tcg/tcg-op-vec.c index b6937e8d64..660ad9be88 100644 --- a/tcg/tcg-op-vec.c +++ b/tcg/tcg-op-vec.c @@ -545,6 +545,18 @@ void tcg_gen_sari_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i) do_shifti(INDEX_op_sari_vec, vece, r, a, i); } +void tcg_gen_rotli_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i) +{ + do_shifti(INDEX_op_rotli_vec, vece, r, a, i); +} + +void tcg_gen_rotri_vec(unsigned vece, TCGv_vec r, TCGv_vec a, int64_t i) +{ + int bits = 8 << vece; + tcg_debug_assert(i >= 0 && i < bits); + do_shifti(INDEX_op_rotli_vec, vece, r, a, -i & (bits - 1)); +} + void tcg_gen_cmp_vec(TCGCond cond, unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b) { diff --git a/tcg/tcg.c b/tcg/tcg.c index a2268d9db0..73a3a4fb9e 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -1661,6 +1661,8 @@ bool tcg_op_supported(TCGOpcode op) case INDEX_op_shrv_vec: case INDEX_op_sarv_vec: return have_vec && TCG_TARGET_HAS_shv_vec; + case INDEX_op_rotli_vec: + return have_vec && TCG_TARGET_HAS_roti_vec; case INDEX_op_ssadd_vec: case INDEX_op_usadd_vec: case INDEX_op_sssub_vec: diff --git a/tcg/README b/tcg/README index bfa2e4ed24..1e3e4654f4 100644 --- a/tcg/README +++ b/tcg/README @@ -605,10 +605,11 @@ E.g. VECL=1 -> 64 << 1 -> v128, and VECE=2 -> 1 << 2 -> i32. * shri_vec v0, v1, i2 * sari_vec v0, v1, i2 +* rotli_vec v0, v1, i2 * shrs_vec v0, v1, s2 * sars_vec v0, v1, s2 - Similarly for logical and arithmetic right shift. + Similarly for logical and arithmetic right shift, and left rotate. * shlv_vec v0, v1, v2

[PULL,01/12] tcg: Implement gvec support for rotate by immediate

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