diff options
Diffstat (limited to 'src/lj_asm_mips.h')
| -rw-r--r-- | src/lj_asm_mips.h | 23 |
1 files changed, 9 insertions, 14 deletions
diff --git a/src/lj_asm_mips.h b/src/lj_asm_mips.h index 78bd26d..03270cc 100644 --- a/src/lj_asm_mips.h +++ b/src/lj_asm_mips.h @@ -1,6 +1,6 @@ /* ** MIPS 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 --------------------------------------- */ @@ -291,7 +291,7 @@ 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 ((ci->flags & CCI_NOFPRCLOBBER)) drop &= ~RSET_FPR; if (ra_hasreg(ir->r)) @@ -443,18 +443,14 @@ static void asm_conv(ASMState *as, IRIns *ir) /* y = (x ^ 0x8000000) + 2147483648.0 */ Reg left = ra_alloc1(as, lref, RSET_GPR); Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, dest)); - emit_fgh(as, irt_isfloat(ir->t) ? MIPSI_ADD_S : MIPSI_ADD_D, - dest, dest, tmp); - emit_fg(as, irt_isfloat(ir->t) ? MIPSI_CVT_S_W : MIPSI_CVT_D_W, - dest, dest); if (irt_isfloat(ir->t)) - emit_lsptr(as, MIPSI_LWC1, (tmp & 31), - (void *)lj_ir_k64_find(as->J, U64x(4f000000,4f000000)), - RSET_GPR); - else - emit_lsptr(as, MIPSI_LDC1, (tmp & 31), - (void *)lj_ir_k64_find(as->J, U64x(41e00000,00000000)), - RSET_GPR); + emit_fg(as, MIPSI_CVT_S_D, dest, dest); + /* Must perform arithmetic with doubles to keep the precision. */ + emit_fgh(as, MIPSI_ADD_D, dest, dest, tmp); + emit_fg(as, MIPSI_CVT_D_W, dest, dest); + emit_lsptr(as, MIPSI_LDC1, (tmp & 31), + (void *)lj_ir_k64_find(as->J, U64x(41e00000,00000000)), + RSET_GPR); emit_tg(as, MIPSI_MTC1, RID_TMP, dest); emit_dst(as, MIPSI_XOR, RID_TMP, RID_TMP, left); emit_ti(as, MIPSI_LUI, RID_TMP, 0x8000); @@ -793,7 +789,6 @@ static void asm_newref(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)); |