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X-Received-From: 2607:f8b0:4864:20::643 Subject: [Qemu-devel] [PATCH v2 06/29] tcg: Return bool success from tcg_out_mov X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) This patch merely changes the interface, aborting on all failures, of which there are currently none. Reviewed-by: David Hildenbrand Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: David Gibson Signed-off-by: Richard Henderson Reviewed-by: Alex Benn=C3=A9e --- tcg/aarch64/tcg-target.inc.c | 5 +++-- tcg/arm/tcg-target.inc.c | 7 +++++-- tcg/i386/tcg-target.inc.c | 5 +++-- tcg/mips/tcg-target.inc.c | 3 ++- tcg/ppc/tcg-target.inc.c | 3 ++- tcg/riscv/tcg-target.inc.c | 5 +++-- tcg/s390/tcg-target.inc.c | 3 ++- tcg/sparc/tcg-target.inc.c | 3 ++- tcg/tcg.c | 14 ++++++++++---- tcg/tci/tcg-target.inc.c | 3 ++- 10 files changed, 34 insertions(+), 17 deletions(-) diff --git a/tcg/aarch64/tcg-target.inc.c b/tcg/aarch64/tcg-target.inc.c index eefa929948..ee89734318 100644 --- a/tcg/aarch64/tcg-target.inc.c +++ b/tcg/aarch64/tcg-target.inc.c @@ -938,10 +938,10 @@ static void tcg_out_ldst(TCGContext *s, AArch64Insn i= nsn, TCGReg rd, tcg_out_ldst_r(s, insn, rd, rn, TCG_TYPE_I64, TCG_REG_TMP); } =20 -static void tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg ar= g) +static bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg ar= g) { if (ret =3D=3D arg) { - return; + return true; } switch (type) { case TCG_TYPE_I32: @@ -970,6 +970,7 @@ static void tcg_out_mov(TCGContext *s, TCGType type, TC= GReg ret, TCGReg arg) default: g_assert_not_reached(); } + return true; } =20 static void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret, diff --git a/tcg/arm/tcg-target.inc.c b/tcg/arm/tcg-target.inc.c index abf0c444b4..dab93f7872 100644 --- a/tcg/arm/tcg-target.inc.c +++ b/tcg/arm/tcg-target.inc.c @@ -2264,10 +2264,13 @@ static inline bool tcg_out_sti(TCGContext *s, TCGTy= pe type, TCGArg val, return false; } =20 -static inline void tcg_out_mov(TCGContext *s, TCGType type, +static inline bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg) { - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, ret, 0, arg, SHIFT_IMM_LSL(0)); + if (ret !=3D arg) { + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, ret, 0, arg, SHIFT_IMM_LSL(= 0)); + } + return true; } =20 static inline void tcg_out_movi(TCGContext *s, TCGType type, diff --git a/tcg/i386/tcg-target.inc.c b/tcg/i386/tcg-target.inc.c index d5ed9f1ffd..1198c76392 100644 --- a/tcg/i386/tcg-target.inc.c +++ b/tcg/i386/tcg-target.inc.c @@ -809,12 +809,12 @@ static inline void tgen_arithr(TCGContext *s, int sub= op, int dest, int src) tcg_out_modrm(s, OPC_ARITH_GvEv + (subop << 3) + ext, dest, src); } =20 -static void tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg ar= g) +static bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg ar= g) { int rexw =3D 0; =20 if (arg =3D=3D ret) { - return; + return true; } switch (type) { case TCG_TYPE_I64: @@ -852,6 +852,7 @@ static void tcg_out_mov(TCGContext *s, TCGType type, TC= GReg ret, TCGReg arg) default: g_assert_not_reached(); } + return true; } =20 static void tcg_out_dup_vec(TCGContext *s, TCGType type, unsigned vece, diff --git a/tcg/mips/tcg-target.inc.c b/tcg/mips/tcg-target.inc.c index 412cacdcb9..7cafd4a790 100644 --- a/tcg/mips/tcg-target.inc.c +++ b/tcg/mips/tcg-target.inc.c @@ -558,13 +558,14 @@ static inline void tcg_out_dsra(TCGContext *s, TCGReg= rd, TCGReg rt, TCGArg sa) tcg_out_opc_sa64(s, OPC_DSRA, OPC_DSRA32, rd, rt, sa); } =20 -static inline void tcg_out_mov(TCGContext *s, TCGType type, +static inline bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg) { /* Simple reg-reg move, optimising out the 'do nothing' case */ if (ret !=3D arg) { tcg_out_opc_reg(s, OPC_OR, ret, arg, TCG_REG_ZERO); } + return true; } =20 static void tcg_out_movi(TCGContext *s, TCGType type, diff --git a/tcg/ppc/tcg-target.inc.c b/tcg/ppc/tcg-target.inc.c index 36b4791707..30c095d3d5 100644 --- a/tcg/ppc/tcg-target.inc.c +++ b/tcg/ppc/tcg-target.inc.c @@ -559,12 +559,13 @@ static bool patch_reloc(tcg_insn_unit *code_ptr, int = type, static void tcg_out_mem_long(TCGContext *s, int opi, int opx, TCGReg rt, TCGReg base, tcg_target_long offset); =20 -static void tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg ar= g) +static bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg ar= g) { tcg_debug_assert(TCG_TARGET_REG_BITS =3D=3D 64 || type =3D=3D TCG_TYPE= _I32); if (ret !=3D arg) { tcg_out32(s, OR | SAB(arg, ret, arg)); } + return true; } =20 static inline void tcg_out_rld(TCGContext *s, int op, TCGReg ra, TCGReg rs, diff --git a/tcg/riscv/tcg-target.inc.c b/tcg/riscv/tcg-target.inc.c index 2932505094..6497a4dab2 100644 --- a/tcg/riscv/tcg-target.inc.c +++ b/tcg/riscv/tcg-target.inc.c @@ -515,10 +515,10 @@ static bool patch_reloc(tcg_insn_unit *code_ptr, int = type, * TCG intrinsics */ =20 -static void tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg ar= g) +static bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg ar= g) { if (ret =3D=3D arg) { - return; + return true; } switch (type) { case TCG_TYPE_I32: @@ -528,6 +528,7 @@ static void tcg_out_mov(TCGContext *s, TCGType type, TC= GReg ret, TCGReg arg) default: g_assert_not_reached(); } + return true; } =20 static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg rd, diff --git a/tcg/s390/tcg-target.inc.c b/tcg/s390/tcg-target.inc.c index 3d6150b10e..331d51852c 100644 --- a/tcg/s390/tcg-target.inc.c +++ b/tcg/s390/tcg-target.inc.c @@ -548,7 +548,7 @@ static void tcg_out_sh32(TCGContext* s, S390Opcode op, = TCGReg dest, tcg_out_insn_RS(s, op, dest, sh_reg, 0, sh_imm); } =20 -static void tcg_out_mov(TCGContext *s, TCGType type, TCGReg dst, TCGReg sr= c) +static bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg dst, TCGReg sr= c) { if (src !=3D dst) { if (type =3D=3D TCG_TYPE_I32) { @@ -557,6 +557,7 @@ static void tcg_out_mov(TCGContext *s, TCGType type, TC= GReg dst, TCGReg src) tcg_out_insn(s, RRE, LGR, dst, src); } } + return true; } =20 static const S390Opcode lli_insns[4] =3D { diff --git a/tcg/sparc/tcg-target.inc.c b/tcg/sparc/tcg-target.inc.c index 7a61839dc1..83295955a7 100644 --- a/tcg/sparc/tcg-target.inc.c +++ b/tcg/sparc/tcg-target.inc.c @@ -407,12 +407,13 @@ static void tcg_out_arithc(TCGContext *s, TCGReg rd, = TCGReg rs1, | (val2const ? INSN_IMM13(val2) : INSN_RS2(val2))); } =20 -static inline void tcg_out_mov(TCGContext *s, TCGType type, +static inline bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg) { if (ret !=3D arg) { tcg_out_arith(s, ret, arg, TCG_REG_G0, ARITH_OR); } + return true; } =20 static inline void tcg_out_sethi(TCGContext *s, TCGReg ret, uint32_t arg) diff --git a/tcg/tcg.c b/tcg/tcg.c index 70ca113c26..8ed7cb8654 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -103,7 +103,7 @@ static const char *target_parse_constraint(TCGArgConstr= aint *ct, const char *ct_str, TCGType typ= e); static void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg= 1, intptr_t arg2); -static void tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg ar= g); +static bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg ar= g); static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg ret, tcg_target_long arg); static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args, @@ -3367,7 +3367,9 @@ static void tcg_reg_alloc_mov(TCGContext *s, const TC= GOp *op) allocated_regs, preferred_regs, ots->indirect_base); } - tcg_out_mov(s, otype, ots->reg, ts->reg); + if (!tcg_out_mov(s, otype, ots->reg, ts->reg)) { + abort(); + } } ots->val_type =3D TEMP_VAL_REG; ots->mem_coherent =3D 0; @@ -3467,7 +3469,9 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCG= Op *op) i_allocated_regs, 0); reg =3D tcg_reg_alloc(s, arg_ct->u.regs, i_allocated_regs, o_preferred_regs, ts->indirect_base); - tcg_out_mov(s, ts->type, reg, ts->reg); + if (!tcg_out_mov(s, ts->type, reg, ts->reg)) { + abort(); + } } new_args[i] =3D reg; const_args[i] =3D 0; @@ -3626,7 +3630,9 @@ static void tcg_reg_alloc_call(TCGContext *s, TCGOp *= op) if (ts->val_type =3D=3D TEMP_VAL_REG) { if (ts->reg !=3D reg) { tcg_reg_free(s, reg, allocated_regs); - tcg_out_mov(s, ts->type, reg, ts->reg); + if (!tcg_out_mov(s, ts->type, reg, ts->reg)) { + abort(); + } } } else { TCGRegSet arg_set =3D 0; diff --git a/tcg/tci/tcg-target.inc.c b/tcg/tci/tcg-target.inc.c index 0015a98485..992d50cb1e 100644 --- a/tcg/tci/tcg-target.inc.c +++ b/tcg/tci/tcg-target.inc.c @@ -509,7 +509,7 @@ static void tcg_out_ld(TCGContext *s, TCGType type, TCG= Reg ret, TCGReg arg1, old_code_ptr[1] =3D s->code_ptr - old_code_ptr; } =20 -static void tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg ar= g) +static bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg ar= g) { uint8_t *old_code_ptr =3D s->code_ptr; tcg_debug_assert(ret !=3D arg); @@ -521,6 +521,7 @@ static void tcg_out_mov(TCGContext *s, TCGType type, TC= GReg ret, TCGReg arg) tcg_out_r(s, ret); tcg_out_r(s, arg); old_code_ptr[1] =3D s->code_ptr - old_code_ptr; + return true; } =20 static void tcg_out_movi(TCGContext *s, TCGType type, --=20 2.17.1