Mercurial > hg > truffle
diff src/cpu/x86/vm/assembler_x86.cpp @ 681:fbde8ec322d0
6761600: Use sse 4.2 in intrinsics
Summary: Use SSE 4.2 in intrinsics for String.{compareTo/equals/indexOf} and Arrays.equals.
Reviewed-by: kvn, never, jrose
| author | cfang |
|---|---|
| date | Tue, 31 Mar 2009 14:07:08 -0700 |
| parents | d0994e5bebce |
| children | e5b0439ef4ae |
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--- a/src/cpu/x86/vm/assembler_x86.cpp Tue Mar 31 10:02:01 2009 -0700 +++ b/src/cpu/x86/vm/assembler_x86.cpp Tue Mar 31 14:07:08 2009 -0700 @@ -2173,6 +2173,31 @@ emit_arith(0x0B, 0xC0, dst, src); } +void Assembler::pcmpestri(XMMRegister dst, Address src, int imm8) { + assert(VM_Version::supports_sse4_2(), ""); + + InstructionMark im(this); + emit_byte(0x66); + prefix(src, dst); + emit_byte(0x0F); + emit_byte(0x3A); + emit_byte(0x61); + emit_operand(dst, src); + emit_byte(imm8); +} + +void Assembler::pcmpestri(XMMRegister dst, XMMRegister src, int imm8) { + assert(VM_Version::supports_sse4_2(), ""); + + emit_byte(0x66); + int encode = prefixq_and_encode(dst->encoding(), src->encoding()); + emit_byte(0x0F); + emit_byte(0x3A); + emit_byte(0x61); + emit_byte(0xC0 | encode); + emit_byte(imm8); +} + // generic void Assembler::pop(Register dst) { int encode = prefix_and_encode(dst->encoding()); @@ -2330,6 +2355,29 @@ emit_byte(shift); } +void Assembler::ptest(XMMRegister dst, Address src) { + assert(VM_Version::supports_sse4_1(), ""); + + InstructionMark im(this); + emit_byte(0x66); + prefix(src, dst); + emit_byte(0x0F); + emit_byte(0x38); + emit_byte(0x17); + emit_operand(dst, src); +} + +void Assembler::ptest(XMMRegister dst, XMMRegister src) { + assert(VM_Version::supports_sse4_1(), ""); + + emit_byte(0x66); + int encode = prefixq_and_encode(dst->encoding(), src->encoding()); + emit_byte(0x0F); + emit_byte(0x38); + emit_byte(0x17); + emit_byte(0xC0 | encode); +} + void Assembler::punpcklbw(XMMRegister dst, XMMRegister src) { NOT_LP64(assert(VM_Version::supports_sse2(), "")); emit_byte(0x66);