[PULL,02/15] tcg: Add INDEX_op_extract2_{i32,i64}

Message ID	20190426172421.27133-3-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 Date: Fri, 26 Apr 2019 10:24:08 -0700 Message-Id: <20190426172421.27133-3-richard.henderson@linaro.org> In-Reply-To: <20190426172421.27133-1-richard.henderson@linaro.org> References: <20190426172421.27133-1-richard.henderson@linaro.org> Subject: [Qemu-devel] [PULL 02/15] tcg: Add INDEX_op_extract2_{i32,i64} Precedence: list Cc: peter.maydell@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,00/15] tcg patch queue [PULL,01/15] tcg: Implement tcg_gen_extract2_{i32, i64} [PULL,02/15] tcg: Add INDEX_op_extract2_{i32,i64} [PULL,03/15] tcg: Use deposit and extract2 in tcg_gen_shifti_i64 [PULL,04/15] tcg: Use extract2 in tcg_gen_deposit_{i32, i64} [PULL,05/15] tcg/i386: Support INDEX_op_extract2_{i32, i64} [PULL,06/15] tcg/arm: Support INDEX_op_extract2_i32 [PULL,07/15] tcg/aarch64: Support INDEX_op_extract2_{i32, i64} [PULL,08/15] tcg: Hoist max_insns computation to tb_gen_code [PULL,09/15] tcg: Restart after TB code generation overflow [PULL,10/15] tcg: Restart TB generation after relocation overflow [PULL,11/15] tcg: Restart TB generation after constant pool overflow [PULL,12/15] tcg: Restart TB generation after out-of-line ldst overflow [PULL,13/15] tcg/ppc: Allow the constant pool to overflow at 32k [PULL,14/15] tcg/arm: Restrict constant pool displacement to 12 bits [PULL,15/15] cputlb: Fix io_readx() to respect the access_type

diff --git a/tcg/aarch64/tcg-target.h b/tcg/aarch64/tcg-target.h index 2d93cf404e..6600a54a02 100644 --- a/tcg/aarch64/tcg-target.h +++ b/tcg/aarch64/tcg-target.h @@ -77,6 +77,7 @@ typedef enum { #define TCG_TARGET_HAS_deposit_i32 1 #define TCG_TARGET_HAS_extract_i32 1 #define TCG_TARGET_HAS_sextract_i32 1 +#define TCG_TARGET_HAS_extract2_i32 0 #define TCG_TARGET_HAS_movcond_i32 1 #define TCG_TARGET_HAS_add2_i32 1 #define TCG_TARGET_HAS_sub2_i32 1 @@ -113,6 +114,7 @@ typedef enum { #define TCG_TARGET_HAS_deposit_i64 1 #define TCG_TARGET_HAS_extract_i64 1 #define TCG_TARGET_HAS_sextract_i64 1 +#define TCG_TARGET_HAS_extract2_i64 0 #define TCG_TARGET_HAS_movcond_i64 1 #define TCG_TARGET_HAS_add2_i64 1 #define TCG_TARGET_HAS_sub2_i64 1 diff --git a/tcg/arm/tcg-target.h b/tcg/arm/tcg-target.h index 16172f73a3..4ee6c98958 100644 --- a/tcg/arm/tcg-target.h +++ b/tcg/arm/tcg-target.h @@ -116,6 +116,7 @@ extern bool use_idiv_instructions; #define TCG_TARGET_HAS_deposit_i32 use_armv7_instructions #define TCG_TARGET_HAS_extract_i32 use_armv7_instructions #define TCG_TARGET_HAS_sextract_i32 use_armv7_instructions +#define TCG_TARGET_HAS_extract2_i32 0 #define TCG_TARGET_HAS_movcond_i32 1 #define TCG_TARGET_HAS_mulu2_i32 1 #define TCG_TARGET_HAS_muls2_i32 1 diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h index 7995fe3eab..2c58eaa9ed 100644 --- a/tcg/i386/tcg-target.h +++ b/tcg/i386/tcg-target.h @@ -124,6 +124,7 @@ extern bool have_avx2; #define TCG_TARGET_HAS_deposit_i32 1 #define TCG_TARGET_HAS_extract_i32 1 #define TCG_TARGET_HAS_sextract_i32 1 +#define TCG_TARGET_HAS_extract2_i32 0 #define TCG_TARGET_HAS_movcond_i32 1 #define TCG_TARGET_HAS_add2_i32 1 #define TCG_TARGET_HAS_sub2_i32 1 @@ -162,6 +163,7 @@ extern bool have_avx2; #define TCG_TARGET_HAS_deposit_i64 1 #define TCG_TARGET_HAS_extract_i64 1 #define TCG_TARGET_HAS_sextract_i64 0 +#define TCG_TARGET_HAS_extract2_i64 0 #define TCG_TARGET_HAS_movcond_i64 1 #define TCG_TARGET_HAS_add2_i64 1 #define TCG_TARGET_HAS_sub2_i64 1 diff --git a/tcg/mips/tcg-target.h b/tcg/mips/tcg-target.h index 5cb8672470..c6b091d849 100644 --- a/tcg/mips/tcg-target.h +++ b/tcg/mips/tcg-target.h @@ -162,6 +162,7 @@ extern bool use_mips32r2_instructions; #define TCG_TARGET_HAS_deposit_i32 use_mips32r2_instructions #define TCG_TARGET_HAS_extract_i32 use_mips32r2_instructions #define TCG_TARGET_HAS_sextract_i32 0 +#define TCG_TARGET_HAS_extract2_i32 0 #define TCG_TARGET_HAS_ext8s_i32 use_mips32r2_instructions #define TCG_TARGET_HAS_ext16s_i32 use_mips32r2_instructions #define TCG_TARGET_HAS_rot_i32 use_mips32r2_instructions @@ -177,6 +178,7 @@ extern bool use_mips32r2_instructions; #define TCG_TARGET_HAS_deposit_i64 use_mips32r2_instructions #define TCG_TARGET_HAS_extract_i64 use_mips32r2_instructions #define TCG_TARGET_HAS_sextract_i64 0 +#define TCG_TARGET_HAS_extract2_i64 0 #define TCG_TARGET_HAS_ext8s_i64 use_mips32r2_instructions #define TCG_TARGET_HAS_ext16s_i64 use_mips32r2_instructions #define TCG_TARGET_HAS_rot_i64 use_mips32r2_instructions diff --git a/tcg/ppc/tcg-target.h b/tcg/ppc/tcg-target.h index 52c1bb04b1..7627fb62d3 100644 --- a/tcg/ppc/tcg-target.h +++ b/tcg/ppc/tcg-target.h @@ -77,6 +77,7 @@ extern bool have_isa_3_00; #define TCG_TARGET_HAS_deposit_i32 1 #define TCG_TARGET_HAS_extract_i32 1 #define TCG_TARGET_HAS_sextract_i32 0 +#define TCG_TARGET_HAS_extract2_i32 0 #define TCG_TARGET_HAS_movcond_i32 1 #define TCG_TARGET_HAS_mulu2_i32 0 #define TCG_TARGET_HAS_muls2_i32 0 @@ -115,6 +116,7 @@ extern bool have_isa_3_00; #define TCG_TARGET_HAS_deposit_i64 1 #define TCG_TARGET_HAS_extract_i64 1 #define TCG_TARGET_HAS_sextract_i64 0 +#define TCG_TARGET_HAS_extract2_i64 0 #define TCG_TARGET_HAS_movcond_i64 1 #define TCG_TARGET_HAS_add2_i64 1 #define TCG_TARGET_HAS_sub2_i64 1 diff --git a/tcg/riscv/tcg-target.h b/tcg/riscv/tcg-target.h index 60918cacb4..032439d806 100644 --- a/tcg/riscv/tcg-target.h +++ b/tcg/riscv/tcg-target.h @@ -93,6 +93,7 @@ typedef enum { #define TCG_TARGET_HAS_deposit_i32 0 #define TCG_TARGET_HAS_extract_i32 0 #define TCG_TARGET_HAS_sextract_i32 0 +#define TCG_TARGET_HAS_extract2_i32 0 #define TCG_TARGET_HAS_add2_i32 1 #define TCG_TARGET_HAS_sub2_i32 1 #define TCG_TARGET_HAS_mulu2_i32 0 @@ -128,6 +129,7 @@ typedef enum { #define TCG_TARGET_HAS_deposit_i64 0 #define TCG_TARGET_HAS_extract_i64 0 #define TCG_TARGET_HAS_sextract_i64 0 +#define TCG_TARGET_HAS_extract2_i64 0 #define TCG_TARGET_HAS_extrl_i64_i32 1 #define TCG_TARGET_HAS_extrh_i64_i32 1 #define TCG_TARGET_HAS_ext8s_i64 1 diff --git a/tcg/s390/tcg-target.h b/tcg/s390/tcg-target.h index 853ed6e7aa..07accabbd1 100644 --- a/tcg/s390/tcg-target.h +++ b/tcg/s390/tcg-target.h @@ -85,6 +85,7 @@ extern uint64_t s390_facilities; #define TCG_TARGET_HAS_deposit_i32 (s390_facilities & FACILITY_GEN_INST_EXT) #define TCG_TARGET_HAS_extract_i32 (s390_facilities & FACILITY_GEN_INST_EXT) #define TCG_TARGET_HAS_sextract_i32 0 +#define TCG_TARGET_HAS_extract2_i32 0 #define TCG_TARGET_HAS_movcond_i32 1 #define TCG_TARGET_HAS_add2_i32 1 #define TCG_TARGET_HAS_sub2_i32 1 @@ -121,6 +122,7 @@ extern uint64_t s390_facilities; #define TCG_TARGET_HAS_deposit_i64 (s390_facilities & FACILITY_GEN_INST_EXT) #define TCG_TARGET_HAS_extract_i64 (s390_facilities & FACILITY_GEN_INST_EXT) #define TCG_TARGET_HAS_sextract_i64 0 +#define TCG_TARGET_HAS_extract2_i64 0 #define TCG_TARGET_HAS_movcond_i64 1 #define TCG_TARGET_HAS_add2_i64 1 #define TCG_TARGET_HAS_sub2_i64 1 diff --git a/tcg/sparc/tcg-target.h b/tcg/sparc/tcg-target.h index a0ed2a3342..633841ebf2 100644 --- a/tcg/sparc/tcg-target.h +++ b/tcg/sparc/tcg-target.h @@ -116,6 +116,7 @@ extern bool use_vis3_instructions; #define TCG_TARGET_HAS_deposit_i32 0 #define TCG_TARGET_HAS_extract_i32 0 #define TCG_TARGET_HAS_sextract_i32 0 +#define TCG_TARGET_HAS_extract2_i32 0 #define TCG_TARGET_HAS_movcond_i32 1 #define TCG_TARGET_HAS_add2_i32 1 #define TCG_TARGET_HAS_sub2_i32 1 @@ -153,6 +154,7 @@ extern bool use_vis3_instructions; #define TCG_TARGET_HAS_deposit_i64 0 #define TCG_TARGET_HAS_extract_i64 0 #define TCG_TARGET_HAS_sextract_i64 0 +#define TCG_TARGET_HAS_extract2_i64 0 #define TCG_TARGET_HAS_movcond_i64 1 #define TCG_TARGET_HAS_add2_i64 1 #define TCG_TARGET_HAS_sub2_i64 1 diff --git a/tcg/tcg-opc.h b/tcg/tcg-opc.h index 4e0238ad1a..1bad6e4208 100644 --- a/tcg/tcg-opc.h +++ b/tcg/tcg-opc.h @@ -79,6 +79,7 @@ DEF(rotr_i32, 1, 2, 0, IMPL(TCG_TARGET_HAS_rot_i32)) DEF(deposit_i32, 1, 2, 2, IMPL(TCG_TARGET_HAS_deposit_i32)) DEF(extract_i32, 1, 1, 2, IMPL(TCG_TARGET_HAS_extract_i32)) DEF(sextract_i32, 1, 1, 2, IMPL(TCG_TARGET_HAS_sextract_i32)) +DEF(extract2_i32, 1, 2, 1, IMPL(TCG_TARGET_HAS_extract2_i32)) DEF(brcond_i32, 0, 2, 2, TCG_OPF_BB_END) @@ -146,6 +147,7 @@ DEF(rotr_i64, 1, 2, 0, IMPL64 | IMPL(TCG_TARGET_HAS_rot_i64)) DEF(deposit_i64, 1, 2, 2, IMPL64 | IMPL(TCG_TARGET_HAS_deposit_i64)) DEF(extract_i64, 1, 1, 2, IMPL64 | IMPL(TCG_TARGET_HAS_extract_i64)) DEF(sextract_i64, 1, 1, 2, IMPL64 | IMPL(TCG_TARGET_HAS_sextract_i64)) +DEF(extract2_i64, 1, 2, 1, IMPL64 | IMPL(TCG_TARGET_HAS_extract2_i64)) /* size changing ops */ DEF(ext_i32_i64, 1, 1, 0, IMPL64) diff --git a/tcg/tcg.h b/tcg/tcg.h index a394d78237..50de1cdda3 100644 --- a/tcg/tcg.h +++ b/tcg/tcg.h @@ -125,6 +125,7 @@ typedef uint64_t TCGRegSet; #define TCG_TARGET_HAS_deposit_i64 0 #define TCG_TARGET_HAS_extract_i64 0 #define TCG_TARGET_HAS_sextract_i64 0 +#define TCG_TARGET_HAS_extract2_i64 0 #define TCG_TARGET_HAS_movcond_i64 0 #define TCG_TARGET_HAS_add2_i64 0 #define TCG_TARGET_HAS_sub2_i64 0 diff --git a/tcg/tci/tcg-target.h b/tcg/tci/tcg-target.h index 086f34e69a..8b90ab71cb 100644 --- a/tcg/tci/tcg-target.h +++ b/tcg/tci/tcg-target.h @@ -71,6 +71,7 @@ #define TCG_TARGET_HAS_deposit_i32 1 #define TCG_TARGET_HAS_extract_i32 0 #define TCG_TARGET_HAS_sextract_i32 0 +#define TCG_TARGET_HAS_extract2_i32 0 #define TCG_TARGET_HAS_eqv_i32 0 #define TCG_TARGET_HAS_nand_i32 0 #define TCG_TARGET_HAS_nor_i32 0 @@ -97,6 +98,7 @@ #define TCG_TARGET_HAS_deposit_i64 1 #define TCG_TARGET_HAS_extract_i64 0 #define TCG_TARGET_HAS_sextract_i64 0 +#define TCG_TARGET_HAS_extract2_i64 0 #define TCG_TARGET_HAS_div_i64 0 #define TCG_TARGET_HAS_rem_i64 0 #define TCG_TARGET_HAS_ext8s_i64 1 diff --git a/tcg/optimize.c b/tcg/optimize.c index 01e80c3e46..5150c38a25 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -1202,6 +1202,22 @@ void tcg_optimize(TCGContext *s) } goto do_default; + CASE_OP_32_64(extract2): + if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) { + TCGArg v1 = arg_info(op->args[1])->val; + TCGArg v2 = arg_info(op->args[2])->val; + + if (opc == INDEX_op_extract2_i64) { + tmp = (v1 >> op->args[3]) | (v2 << (64 - op->args[3])); + } else { + tmp = (v1 >> op->args[3]) | (v2 << (32 - op->args[3])); + tmp = (int32_t)tmp; + } + tcg_opt_gen_movi(s, op, op->args[0], tmp); + break; + } + goto do_default; + CASE_OP_32_64(setcond): tmp = do_constant_folding_cond(opc, op->args[1], op->args[2], op->args[3]); diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c index 7c56c92c8e..deacc63e3b 100644 --- a/tcg/tcg-op.c +++ b/tcg/tcg-op.c @@ -823,6 +823,8 @@ void tcg_gen_extract2_i32(TCGv_i32 ret, TCGv_i32 al, TCGv_i32 ah, tcg_gen_mov_i32(ret, ah); } else if (al == ah) { tcg_gen_rotri_i32(ret, al, ofs); + } else if (TCG_TARGET_HAS_extract2_i32) { + tcg_gen_op4i_i32(INDEX_op_extract2_i32, ret, al, ah, ofs); } else { TCGv_i32 t0 = tcg_temp_new_i32(); tcg_gen_shri_i32(t0, al, ofs); @@ -2333,6 +2335,8 @@ void tcg_gen_extract2_i64(TCGv_i64 ret, TCGv_i64 al, TCGv_i64 ah, tcg_gen_mov_i64(ret, ah); } else if (al == ah) { tcg_gen_rotri_i64(ret, al, ofs); + } else if (TCG_TARGET_HAS_extract2_i64) { + tcg_gen_op4i_i64(INDEX_op_extract2_i64, ret, al, ah, ofs); } else { TCGv_i64 t0 = tcg_temp_new_i64(); tcg_gen_shri_i64(t0, al, ofs); diff --git a/tcg/tcg.c b/tcg/tcg.c index 6a22c8746c..c0730f119f 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -1426,6 +1426,8 @@ bool tcg_op_supported(TCGOpcode op) return TCG_TARGET_HAS_extract_i32; case INDEX_op_sextract_i32: return TCG_TARGET_HAS_sextract_i32; + case INDEX_op_extract2_i32: + return TCG_TARGET_HAS_extract2_i32; case INDEX_op_add2_i32: return TCG_TARGET_HAS_add2_i32; case INDEX_op_sub2_i32: @@ -1523,6 +1525,8 @@ bool tcg_op_supported(TCGOpcode op) return TCG_TARGET_HAS_extract_i64; case INDEX_op_sextract_i64: return TCG_TARGET_HAS_sextract_i64; + case INDEX_op_extract2_i64: + return TCG_TARGET_HAS_extract2_i64; case INDEX_op_extrl_i64_i32: return TCG_TARGET_HAS_extrl_i64_i32; case INDEX_op_extrh_i64_i32: diff --git a/tcg/README b/tcg/README index 603f4df659..c30e5418a6 100644 --- a/tcg/README +++ b/tcg/README @@ -343,6 +343,13 @@ at bit 8. This operation would be equivalent to (using an arithmetic right shift). +* extract2_i32/i64 dest, t1, t2, pos + +For N = {32,64}, extract an N-bit quantity from the concatenation +of t2:t1, beginning at pos. The tcg_gen_extract2_{i32,i64} expander +accepts 0 <= pos <= N as inputs. The backend code generator will +not see either 0 or N as inputs for these opcodes. + * extrl_i64_i32 t0, t1 For 64-bit hosts only, extract the low 32-bits of input T1 and place it

[PULL,02/15] tcg: Add INDEX_op_extract2_{i32,i64}

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