1.1 --- a/src/cpu/x86/vm/x86_64.ad Mon May 11 18:30:13 2009 -0700
1.2 +++ b/src/cpu/x86/vm/x86_64.ad Wed May 13 00:45:22 2009 -0700
1.3 @@ -6459,6 +6459,18 @@
1.4 ins_pipe(ialu_reg_mem);
1.5 %}
1.6
1.7 +// Load Short (16 bit signed) to Byte (8 bit signed)
1.8 +instruct loadS2B(rRegI dst, memory mem, immI_24 twentyfour) %{
1.9 + match(Set dst (RShiftI (LShiftI (LoadS mem) twentyfour) twentyfour));
1.10 +
1.11 + ins_cost(125);
1.12 + format %{ "movsbl $dst, $mem\t# short -> byte" %}
1.13 + ins_encode %{
1.14 + __ movsbl($dst$$Register, $mem$$Address);
1.15 + %}
1.16 + ins_pipe(ialu_reg_mem);
1.17 +%}
1.18 +
1.19 // Load Short (16 bit signed) into Long Register
1.20 instruct loadS2L(rRegL dst, memory mem)
1.21 %{
1.22 @@ -6489,6 +6501,18 @@
1.23 ins_pipe(ialu_reg_mem);
1.24 %}
1.25
1.26 +// Load Unsigned Short/Char (16 bit UNsigned) to Byte (8 bit signed)
1.27 +instruct loadUS2B(rRegI dst, memory mem, immI_24 twentyfour) %{
1.28 + match(Set dst (RShiftI (LShiftI (LoadUS mem) twentyfour) twentyfour));
1.29 +
1.30 + ins_cost(125);
1.31 + format %{ "movsbl $dst, $mem\t# ushort -> byte" %}
1.32 + ins_encode %{
1.33 + __ movsbl($dst$$Register, $mem$$Address);
1.34 + %}
1.35 + ins_pipe(ialu_reg_mem);
1.36 +%}
1.37 +
1.38 // Load Unsigned Short/Char (16 bit UNsigned) into Long Register
1.39 instruct loadUS2L(rRegL dst, memory mem)
1.40 %{
1.41 @@ -6519,6 +6543,54 @@
1.42 ins_pipe(ialu_reg_mem);
1.43 %}
1.44
1.45 +// Load Integer (32 bit signed) to Byte (8 bit signed)
1.46 +instruct loadI2B(rRegI dst, memory mem, immI_24 twentyfour) %{
1.47 + match(Set dst (RShiftI (LShiftI (LoadI mem) twentyfour) twentyfour));
1.48 +
1.49 + ins_cost(125);
1.50 + format %{ "movsbl $dst, $mem\t# int -> byte" %}
1.51 + ins_encode %{
1.52 + __ movsbl($dst$$Register, $mem$$Address);
1.53 + %}
1.54 + ins_pipe(ialu_reg_mem);
1.55 +%}
1.56 +
1.57 +// Load Integer (32 bit signed) to Unsigned Byte (8 bit UNsigned)
1.58 +instruct loadI2UB(rRegI dst, memory mem, immI_255 mask) %{
1.59 + match(Set dst (AndI (LoadI mem) mask));
1.60 +
1.61 + ins_cost(125);
1.62 + format %{ "movzbl $dst, $mem\t# int -> ubyte" %}
1.63 + ins_encode %{
1.64 + __ movzbl($dst$$Register, $mem$$Address);
1.65 + %}
1.66 + ins_pipe(ialu_reg_mem);
1.67 +%}
1.68 +
1.69 +// Load Integer (32 bit signed) to Short (16 bit signed)
1.70 +instruct loadI2S(rRegI dst, memory mem, immI_16 sixteen) %{
1.71 + match(Set dst (RShiftI (LShiftI (LoadI mem) sixteen) sixteen));
1.72 +
1.73 + ins_cost(125);
1.74 + format %{ "movswl $dst, $mem\t# int -> short" %}
1.75 + ins_encode %{
1.76 + __ movswl($dst$$Register, $mem$$Address);
1.77 + %}
1.78 + ins_pipe(ialu_reg_mem);
1.79 +%}
1.80 +
1.81 +// Load Integer (32 bit signed) to Unsigned Short/Char (16 bit UNsigned)
1.82 +instruct loadI2US(rRegI dst, memory mem, immI_65535 mask) %{
1.83 + match(Set dst (AndI (LoadI mem) mask));
1.84 +
1.85 + ins_cost(125);
1.86 + format %{ "movzwl $dst, $mem\t# int -> ushort/char" %}
1.87 + ins_encode %{
1.88 + __ movzwl($dst$$Register, $mem$$Address);
1.89 + %}
1.90 + ins_pipe(ialu_reg_mem);
1.91 +%}
1.92 +
1.93 // Load Integer into Long Register
1.94 instruct loadI2L(rRegL dst, memory mem)
1.95 %{
