diff options
Diffstat (limited to 'luajit-2.1/src/lj_asm_arm.h')
| -rw-r--r-- | luajit-2.1/src/lj_asm_arm.h | 49 |
1 files changed, 21 insertions, 28 deletions
diff --git a/luajit-2.1/src/lj_asm_arm.h b/luajit-2.1/src/lj_asm_arm.h index 81843ca..37bfa40 100644 --- a/luajit-2.1/src/lj_asm_arm.h +++ b/luajit-2.1/src/lj_asm_arm.h @@ -1,6 +1,6 @@ /* ** ARM IR assembler (SSA IR -> machine code). -** Copyright (C) 2005-2015 Mike Pall. See Copyright Notice in luajit.h +** Copyright (C) 2005-2017 Mike Pall. See Copyright Notice in luajit.h */ /* -- Register allocator extensions --------------------------------------- */ @@ -426,7 +426,7 @@ static void asm_gencall(ASMState *as, const CCallInfo *ci, IRRef *args) static void asm_setupresult(ASMState *as, IRIns *ir, const CCallInfo *ci) { RegSet drop = RSET_SCRATCH; - int hiop = ((ir+1)->o == IR_HIOP); + int hiop = ((ir+1)->o == IR_HIOP && !irt_isnil((ir+1)->t)); if (ra_hasreg(ir->r)) rset_clear(drop, ir->r); /* Dest reg handled below. */ if (hiop && ra_hasreg((ir+1)->r)) @@ -520,8 +520,6 @@ static void asm_tobit(ASMState *as, IRIns *ir) emit_dn(as, ARMI_VMOV_R_S, dest, (tmp & 15)); emit_dnm(as, ARMI_VADD_D, (tmp & 15), (left & 15), (right & 15)); } -#else -#define asm_tobit(as, ir) lua_assert(0) #endif static void asm_conv(ASMState *as, IRIns *ir) @@ -911,7 +909,6 @@ static void asm_hrefk(ASMState *as, IRIns *ir) static void asm_uref(ASMState *as, IRIns *ir) { - /* NYI: Check that UREFO is still open and not aliasing a slot. */ Reg dest = ra_dest(as, ir, RSET_GPR); if (irref_isk(ir->op1)) { GCfunc *fn = ir_kfunc(IR(ir->op1)); @@ -1000,22 +997,26 @@ static ARMIns asm_fxstoreins(IRIns *ir) static void asm_fload(ASMState *as, IRIns *ir) { - Reg dest = ra_dest(as, ir, RSET_GPR); - Reg idx = ra_alloc1(as, ir->op1, RSET_GPR); - ARMIns ai = asm_fxloadins(ir); - int32_t ofs; - if (ir->op2 == IRFL_TAB_ARRAY) { - ofs = asm_fuseabase(as, ir->op1); - if (ofs) { /* Turn the t->array load into an add for colocated arrays. */ - emit_dn(as, ARMI_ADD|ARMI_K12|ofs, dest, idx); - return; + if (ir->op1 == REF_NIL) { + lua_assert(!ra_used(ir)); /* We can end up here if DCE is turned off. */ + } else { + Reg dest = ra_dest(as, ir, RSET_GPR); + Reg idx = ra_alloc1(as, ir->op1, RSET_GPR); + ARMIns ai = asm_fxloadins(ir); + int32_t ofs; + if (ir->op2 == IRFL_TAB_ARRAY) { + ofs = asm_fuseabase(as, ir->op1); + if (ofs) { /* Turn the t->array load into an add for colocated arrays. */ + emit_dn(as, ARMI_ADD|ARMI_K12|ofs, dest, idx); + return; + } } + ofs = field_ofs[ir->op2]; + if ((ai & 0x04000000)) + emit_lso(as, ai, dest, idx, ofs); + else + emit_lsox(as, ai, dest, idx, ofs); } - ofs = field_ofs[ir->op2]; - if ((ai & 0x04000000)) - emit_lso(as, ai, dest, idx, ofs); - else - emit_lsox(as, ai, dest, idx, ofs); } static void asm_fstore(ASMState *as, IRIns *ir) @@ -1372,8 +1373,6 @@ static void asm_fpmath(ASMState *as, IRIns *ir) else asm_callid(as, ir, IRCALL_lj_vm_floor + ir->op2); } -#else -#define asm_fpmath(as, ir) lua_assert(0) #endif static int asm_swapops(ASMState *as, IRRef lref, IRRef rref) @@ -1492,13 +1491,7 @@ static void asm_mul(ASMState *as, IRIns *ir) #define asm_subov(as, ir) asm_sub(as, ir) #define asm_mulov(as, ir) asm_mul(as, ir) -#if LJ_SOFTFP -#define asm_div(as, ir) lua_assert(0) -#define asm_pow(as, ir) lua_assert(0) -#define asm_abs(as, ir) lua_assert(0) -#define asm_atan2(as, ir) lua_assert(0) -#define asm_ldexp(as, ir) lua_assert(0) -#else +#if !LJ_SOFTFP #define asm_div(as, ir) asm_fparith(as, ir, ARMI_VDIV_D) #define asm_pow(as, ir) asm_callid(as, ir, IRCALL_lj_vm_powi) #define asm_abs(as, ir) asm_fpunary(as, ir, ARMI_VABS_D) |