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comparison src/cpu/x86/vm/assembler_x86.cpp @ 20311:b1bc1af04c6e

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8052081: Optimize generated by C2 code for Intel's Atom processor Summary: Allow to execute vectorization and crc32 optimization on Atom. Enable UseFPUForSpilling by default on x86. Reviewed-by: roland
author kvn
date Tue, 05 Aug 2014 15:02:10 -0700
parents 78bbf4d43a14
children 166d744df0de
comparison
equal deleted inserted replaced
20310:bfba6779654b 20311:b1bc1af04c6e
3852 emit_int8(0x58); 3852 emit_int8(0x58);
3853 emit_int8((unsigned char)(0xC0 | encode)); 3853 emit_int8((unsigned char)(0xC0 | encode));
3854 } 3854 }
3855 3855
3856 // Carry-Less Multiplication Quadword 3856 // Carry-Less Multiplication Quadword
3857 void Assembler::pclmulqdq(XMMRegister dst, XMMRegister src, int mask) {
3858 assert(VM_Version::supports_clmul(), "");
3859 int encode = simd_prefix_and_encode(dst, dst, src, VEX_SIMD_66, VEX_OPCODE_0F_3A);
3860 emit_int8(0x44);
3861 emit_int8((unsigned char)(0xC0 | encode));
3862 emit_int8((unsigned char)mask);
3863 }
3864
3865 // Carry-Less Multiplication Quadword
3857 void Assembler::vpclmulqdq(XMMRegister dst, XMMRegister nds, XMMRegister src, int mask) { 3866 void Assembler::vpclmulqdq(XMMRegister dst, XMMRegister nds, XMMRegister src, int mask) {
3858 assert(VM_Version::supports_avx() && VM_Version::supports_clmul(), ""); 3867 assert(VM_Version::supports_avx() && VM_Version::supports_clmul(), "");
3859 bool vector256 = false; 3868 bool vector256 = false;
3860 int encode = vex_prefix_and_encode(dst, nds, src, VEX_SIMD_66, vector256, VEX_OPCODE_0F_3A); 3869 int encode = vex_prefix_and_encode(dst, nds, src, VEX_SIMD_66, vector256, VEX_OPCODE_0F_3A);
3861 emit_int8(0x44); 3870 emit_int8(0x44);