uops-again.info

LFENCE;CRC32 RAX,RBX;MOV RAX,0X7FFFFFFF on Cascade Lake (more architectures)

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AssemblyLFENCE;CRC32 RAX,RBX;MOV RAX,0X7FFFFFFF
Architecture CodenameCascade Lake
Port Eligibility Instr. 1None
Port Eligibility Instr. 2None (644 other cmds. with the same port eligibility for instr. 2)
Port Eligibility Instr. 31*p0156 (6662 other cmds. with the same port eligibility for instr. 3)
(134 other cmds. with the same port eligibility for both instr. 2 and instr. 3)
Total Instr. Length (bytes)14
Cutoff 1886 (179 other commands with the same cutoff)
Cutoff 21771
Instruction 1LFENCE
Swap 🔄 Instruction 2 CRC32 RAX,RBX (444 other commands with the same Instruction 2)
Instruction 3MOV RAX,0X7FFFFFFF (444 other commands with the same Instruction 3)
Number of instructions3
Graph Generationpython3 unroll_csv.py -a CSL -asm "LFENCE;CRC32 RAX,RBX;MOV RAX,0X7FFFFFFF" && python3 normalize_cycles.py
Length Instruction 1 (bytes)3
Length Instruction 2 (bytes)6
Length Instruction 3 (bytes)5
Regioningtrue
Region Characterization Type51 (828 other commands with the same type)
Element Order Changes Regioning Effecttrue
Element Order Change DescriptionDifferent pattern of Type36

LFENCE;CRC32 RAX,RBX;MOV RAX,0X7FFFFFFF on additional architectures:

Other commands where Cutoff 1 = 886:

179 instructions, click for details

Other commands where Instruction 2 = CRC32 RAX,RBX:

444 instructions, click for details

Other commands where Instruction 3 = MOV RAX,0X7FFFFFFF:

444 instructions, click for details

Other commands where Region Characterization = Type51:

828 instructions, click for details

Other commands where the port eligibility for Instruction 2 is None:

644 instructions, click for details

Other commands where the port eligibility for Instruction 3 is 1*p0156:

6662 instructions, click for details

Other commands where the port eligibility for Instruction 2 is None and for Instruction 3 is 1*p0156: