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Sun, 18 Jan 2026 14:05:21 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: Pierrick Bouvier Subject: [PULL 25/54] tcg/tci: Drop TCG_TARGET_REG_BITS tests Date: Mon, 19 Jan 2026 09:03:45 +1100 Message-ID: <20260118220414.8177-26-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260118220414.8177-1-richard.henderson@linaro.org> References: <20260118220414.8177-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::536; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x536.google.com X-Spam_score_int: 12 X-Spam_score: 1.2 X-Spam_bar: + X-Spam_report: (1.2 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1768774086549158500 Content-Type: text/plain; charset="utf-8" Reviewed-by: Pierrick Bouvier Signed-off-by: Richard Henderson --- tcg/tci/tcg-target-has.h | 2 -- tcg/tci.c | 50 ++------------------------------------- tcg/tci/tcg-target.c.inc | 51 ++++++---------------------------------- 3 files changed, 9 insertions(+), 94 deletions(-) diff --git a/tcg/tci/tcg-target-has.h b/tcg/tci/tcg-target-has.h index ab07ce1fcb..64742cf0b7 100644 --- a/tcg/tci/tcg-target-has.h +++ b/tcg/tci/tcg-target-has.h @@ -7,9 +7,7 @@ #ifndef TCG_TARGET_HAS_H #define TCG_TARGET_HAS_H =20 -#if TCG_TARGET_REG_BITS =3D=3D 64 #define TCG_TARGET_HAS_extr_i64_i32 0 -#endif /* TCG_TARGET_REG_BITS =3D=3D 64 */ =20 #define TCG_TARGET_HAS_qemu_ldst_i128 0 =20 diff --git a/tcg/tci.c b/tcg/tci.c index 7f3ba9b5da..f71993c287 100644 --- a/tcg/tci.c +++ b/tcg/tci.c @@ -43,19 +43,6 @@ =20 __thread uintptr_t tci_tb_ptr; =20 -static void tci_write_reg64(tcg_target_ulong *regs, uint32_t high_index, - uint32_t low_index, uint64_t value) -{ - regs[low_index] =3D (uint32_t)value; - regs[high_index] =3D value >> 32; -} - -/* Create a 64 bit value from two 32 bit values. */ -static uint64_t tci_uint64(uint32_t high, uint32_t low) -{ - return ((uint64_t)high << 32) + low; -} - /* * Load sets of arguments all at once. The naming convention is: * tci_args_ @@ -352,7 +339,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchStat= e *env, TCGCond condition; uint8_t pos, len; uint32_t tmp32; - uint64_t tmp64, taddr; + uint64_t taddr; MemOpIdx oi; int32_t ofs; void *ptr; @@ -400,10 +387,6 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchSta= te *env, } break; case 2: /* uint64_t */ - /* - * For TCG_TARGET_REG_BITS =3D=3D 32, the register pair - * must stay in host memory order. - */ memcpy(®s[TCG_REG_R0], stack, 8); break; case 3: /* Int128 */ @@ -586,21 +569,11 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchSt= ate *env, break; case INDEX_op_muls2: tci_args_rrrr(insn, &r0, &r1, &r2, &r3); -#if TCG_TARGET_REG_BITS =3D=3D 32 - tmp64 =3D (int64_t)(int32_t)regs[r2] * (int32_t)regs[r3]; - tci_write_reg64(regs, r1, r0, tmp64); -#else muls64(®s[r0], ®s[r1], regs[r2], regs[r3]); -#endif break; case INDEX_op_mulu2: tci_args_rrrr(insn, &r0, &r1, &r2, &r3); -#if TCG_TARGET_REG_BITS =3D=3D 32 - tmp64 =3D (uint64_t)(uint32_t)regs[r2] * (uint32_t)regs[r3]; - tci_write_reg64(regs, r1, r0, tmp64); -#else mulu64(®s[r0], ®s[r1], regs[r2], regs[r3]); -#endif break; =20 /* Arithmetic operations (32 bit). */ @@ -690,7 +663,7 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchStat= e *env, tci_args_rr(insn, &r0, &r1); regs[r0] =3D bswap32(regs[r1]); break; -#if TCG_TARGET_REG_BITS =3D=3D 64 + /* Load/store operations (64 bit). */ =20 case INDEX_op_ld32u: @@ -758,7 +731,6 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchStat= e *env, tci_args_rr(insn, &r0, &r1); regs[r0] =3D bswap64(regs[r1]); break; -#endif /* TCG_TARGET_REG_BITS =3D=3D 64 */ =20 /* QEMU specific operations. */ =20 @@ -804,24 +776,6 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchSta= te *env, tci_qemu_st(env, taddr, regs[r0], oi, tb_ptr); break; =20 - case INDEX_op_qemu_ld2: - tcg_debug_assert(TCG_TARGET_REG_BITS =3D=3D 32); - tci_args_rrrr(insn, &r0, &r1, &r2, &r3); - taddr =3D regs[r2]; - oi =3D regs[r3]; - tmp64 =3D tci_qemu_ld(env, taddr, oi, tb_ptr); - tci_write_reg64(regs, r1, r0, tmp64); - break; - - case INDEX_op_qemu_st2: - tcg_debug_assert(TCG_TARGET_REG_BITS =3D=3D 32); - tci_args_rrrr(insn, &r0, &r1, &r2, &r3); - tmp64 =3D tci_uint64(regs[r1], regs[r0]); - taddr =3D regs[r2]; - oi =3D regs[r3]; - tci_qemu_st(env, taddr, tmp64, oi, tb_ptr); - break; - case INDEX_op_mb: /* Ensure ordering for all kinds */ smp_mb(); diff --git a/tcg/tci/tcg-target.c.inc b/tcg/tci/tcg-target.c.inc index 8bd8db4401..1b22c70616 100644 --- a/tcg/tci/tcg-target.c.inc +++ b/tcg/tci/tcg-target.c.inc @@ -25,15 +25,9 @@ /* Used for function call generation. */ #define TCG_TARGET_CALL_STACK_OFFSET 0 #define TCG_TARGET_STACK_ALIGN 8 -#if TCG_TARGET_REG_BITS =3D=3D 32 -# define TCG_TARGET_CALL_ARG_I32 TCG_CALL_ARG_EVEN -# define TCG_TARGET_CALL_ARG_I64 TCG_CALL_ARG_EVEN -# define TCG_TARGET_CALL_ARG_I128 TCG_CALL_ARG_EVEN -#else -# define TCG_TARGET_CALL_ARG_I32 TCG_CALL_ARG_NORMAL -# define TCG_TARGET_CALL_ARG_I64 TCG_CALL_ARG_NORMAL -# define TCG_TARGET_CALL_ARG_I128 TCG_CALL_ARG_NORMAL -#endif +#define TCG_TARGET_CALL_ARG_I32 TCG_CALL_ARG_NORMAL +#define TCG_TARGET_CALL_ARG_I64 TCG_CALL_ARG_NORMAL +#define TCG_TARGET_CALL_ARG_I128 TCG_CALL_ARG_NORMAL #define TCG_TARGET_CALL_RET_I128 TCG_CALL_RET_NORMAL =20 static TCGConstraintSetIndex @@ -320,7 +314,7 @@ static void tcg_out_ld(TCGContext *s, TCGType type, TCG= Reg val, TCGReg base, { TCGOpcode op =3D INDEX_op_ld; =20 - if (TCG_TARGET_REG_BITS =3D=3D 64 && type =3D=3D TCG_TYPE_I32) { + if (type =3D=3D TCG_TYPE_I32) { op =3D INDEX_op_ld32u; } tcg_out_ldst(s, op, val, base, offset); @@ -337,11 +331,9 @@ static void tcg_out_movi(TCGContext *s, TCGType type, { switch (type) { case TCG_TYPE_I32: -#if TCG_TARGET_REG_BITS =3D=3D 64 arg =3D (int32_t)arg; /* fall through */ case TCG_TYPE_I64: -#endif break; default: g_assert_not_reached(); @@ -407,13 +399,11 @@ static void tcg_out_ext16u(TCGContext *s, TCGReg rd, = TCGReg rs) =20 static void tcg_out_ext32s(TCGContext *s, TCGReg rd, TCGReg rs) { - tcg_debug_assert(TCG_TARGET_REG_BITS =3D=3D 64); tcg_out_sextract(s, TCG_TYPE_I64, rd, rs, 0, 32); } =20 static void tcg_out_ext32u(TCGContext *s, TCGReg rd, TCGReg rs) { - tcg_debug_assert(TCG_TARGET_REG_BITS =3D=3D 64); tcg_out_extract(s, TCG_TYPE_I64, rd, rs, 0, 32); } =20 @@ -429,7 +419,6 @@ static void tcg_out_extu_i32_i64(TCGContext *s, TCGReg = rd, TCGReg rs) =20 static void tcg_out_extrl_i64_i32(TCGContext *s, TCGReg rd, TCGReg rs) { - tcg_debug_assert(TCG_TARGET_REG_BITS =3D=3D 64); tcg_out_mov(s, TCG_TYPE_I32, rd, rs); } =20 @@ -654,7 +643,6 @@ static const TCGOutOpBinary outop_eqv =3D { .out_rrr =3D tgen_eqv, }; =20 -#if TCG_TARGET_REG_BITS =3D=3D 64 static void tgen_extrh_i64_i32(TCGContext *s, TCGType t, TCGReg a0, TCGReg= a1) { tcg_out_extract(s, TCG_TYPE_I64, a0, a1, 32, 32); @@ -664,7 +652,6 @@ static const TCGOutOpUnary outop_extrh_i64_i32 =3D { .base.static_constraint =3D C_O1_I1(r, r), .out_rr =3D tgen_extrh_i64_i32, }; -#endif =20 static void tgen_mul(TCGContext *s, TCGType type, TCGReg a0, TCGReg a1, TCGReg a2) @@ -962,7 +949,6 @@ static const TCGOutOpBswap outop_bswap32 =3D { .out_rr =3D tgen_bswap32, }; =20 -#if TCG_TARGET_REG_BITS =3D=3D 64 static void tgen_bswap64(TCGContext *s, TCGType type, TCGReg a0, TCGReg a1) { tcg_out_op_rr(s, INDEX_op_bswap64, a0, a1); @@ -972,7 +958,6 @@ static const TCGOutOpUnary outop_bswap64 =3D { .base.static_constraint =3D C_O1_I1(r, r), .out_rr =3D tgen_bswap64, }; -#endif =20 static void tgen_neg(TCGContext *s, TCGType type, TCGReg a0, TCGReg a1) { @@ -1101,7 +1086,6 @@ static const TCGOutOpLoad outop_ld16s =3D { .out =3D tgen_ld16s, }; =20 -#if TCG_TARGET_REG_BITS =3D=3D 64 static void tgen_ld32u(TCGContext *s, TCGType type, TCGReg dest, TCGReg base, ptrdiff_t offset) { @@ -1123,7 +1107,6 @@ static const TCGOutOpLoad outop_ld32s =3D { .base.static_constraint =3D C_O1_I1(r, r), .out =3D tgen_ld32s, }; -#endif =20 static void tgen_st8(TCGContext *s, TCGType type, TCGReg data, TCGReg base, ptrdiff_t offset) @@ -1168,18 +1151,8 @@ static const TCGOutOpQemuLdSt outop_qemu_ld =3D { .out =3D tgen_qemu_ld, }; =20 -static void tgen_qemu_ld2(TCGContext *s, TCGType type, TCGReg datalo, - TCGReg datahi, TCGReg addr, MemOpIdx oi) -{ - tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_TMP, oi); - tcg_out_op_rrrr(s, INDEX_op_qemu_ld2, datalo, datahi, addr, TCG_REG_TM= P); -} - static const TCGOutOpQemuLdSt2 outop_qemu_ld2 =3D { - .base.static_constraint =3D - TCG_TARGET_REG_BITS =3D=3D 64 ? C_NotImplemented : C_O2_I1(r, r, r= ), - .out =3D - TCG_TARGET_REG_BITS =3D=3D 64 ? NULL : tgen_qemu_ld2, + .base.static_constraint =3D C_NotImplemented, }; =20 static void tgen_qemu_st(TCGContext *s, TCGType type, TCGReg data, @@ -1198,18 +1171,8 @@ static const TCGOutOpQemuLdSt outop_qemu_st =3D { .out =3D tgen_qemu_st, }; =20 -static void tgen_qemu_st2(TCGContext *s, TCGType type, TCGReg datalo, - TCGReg datahi, TCGReg addr, MemOpIdx oi) -{ - tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_TMP, oi); - tcg_out_op_rrrr(s, INDEX_op_qemu_st2, datalo, datahi, addr, TCG_REG_TM= P); -} - static const TCGOutOpQemuLdSt2 outop_qemu_st2 =3D { - .base.static_constraint =3D - TCG_TARGET_REG_BITS =3D=3D 64 ? C_NotImplemented : C_O0_I3(r, r, r= ), - .out =3D - TCG_TARGET_REG_BITS =3D=3D 64 ? NULL : tgen_qemu_st2, + .base.static_constraint =3D C_NotImplemented, }; =20 static void tcg_out_st(TCGContext *s, TCGType type, TCGReg val, TCGReg bas= e, @@ -1217,7 +1180,7 @@ static void tcg_out_st(TCGContext *s, TCGType type, T= CGReg val, TCGReg base, { TCGOpcode op =3D INDEX_op_st; =20 - if (TCG_TARGET_REG_BITS =3D=3D 64 && type =3D=3D TCG_TYPE_I32) { + if (type =3D=3D TCG_TYPE_I32) { op =3D INDEX_op_st32; } tcg_out_ldst(s, op, val, base, offset); --=20 2.43.0