Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- a/src/cpu/mips/vm/mips_64.ad	Thu Feb 16 07:55:00 2017 -0500
     1.2 +++ b/src/cpu/mips/vm/mips_64.ad	Thu Feb 16 08:59:10 2017 -0500
     1.3 @@ -11525,11 +11525,45 @@
     1.4  %}
     1.5  
     1.6  // Convert a double to an int.  If the double is a NAN, stuff a zero in instead.
     1.7 -instruct convD2I_reg_reg( mRegI dst, regD src ) %{
     1.8 +instruct convD2I_reg_reg_fast( mRegI dst, regD src ) %{
     1.9    match(Set dst (ConvD2I src));
    1.10 -//  effect( KILL tmp, KILL cr );//after this instruction, it will release register tmp and cr
    1.11 -
    1.12 -  format %{ "convD2I $dst, $src\t# @ convD2I_reg_reg \n\t" %}
    1.13 +
    1.14 +  ins_cost(150);
    1.15 +  format %{ "convD2I $dst, $src\t# @ convD2I_reg_reg_fast" %}
    1.16 +
    1.17 +  ins_encode %{
    1.18 +      FloatRegister src = $src$$FloatRegister;
    1.19 +      Register      dst = $dst$$Register;
    1.20 +
    1.21 +      Label Done;
    1.22 +
    1.23 +      __ trunc_w_d(F30, src);
    1.24 +      // max_int: 2147483647
    1.25 +      __ move(AT, 0x7fffffff);
    1.26 +      __ mfc1(dst, F30);
    1.27 +      
    1.28 +      __ bne(dst, AT, Done);
    1.29 +      __ delayed()->mtc1(R0, F30);
    1.30 +
    1.31 +      __ cvt_d_w(F30, F30); 
    1.32 +      __ c_le_d(src, F30);
    1.33 +      __ bc1f(Done);
    1.34 +      __ delayed()->addiu(T9, R0, -1);
    1.35 +
    1.36 +      __ c_un_d(src, src);    //NaN?
    1.37 +      __ subu32(dst, T9, AT);
    1.38 +      __ movt(dst, R0);
    1.39 +
    1.40 +      __ bind(Done);
    1.41 +  %}
    1.42 +  ins_pipe( pipe_slow );
    1.43 +%}
    1.44 +
    1.45 +instruct convD2I_reg_reg_slow( mRegI dst, regD src ) %{
    1.46 +  match(Set dst (ConvD2I src));
    1.47 +
    1.48 +  ins_cost(250);
    1.49 +  format %{ "convD2I $dst, $src\t# @ convD2I_reg_reg_slow" %}
    1.50  
    1.51    ins_encode %{
    1.52        FloatRegister src = $src$$FloatRegister;