uops-again.info

LFENCE;SHL RAX,1;MOV RAX,0X7FFFFFFF on Ivy Bridge (more architectures)

(open in new window) (raw data)
AssemblyLFENCE;SHL RAX,1;MOV RAX,0X7FFFFFFF
Architecture CodenameIvy Bridge
Port Eligibility Instr. 1None
Port Eligibility Instr. 21*p05 (1096 other cmds. with the same port eligibility for instr. 2)
Port Eligibility Instr. 31*p015 (3019 other cmds. with the same port eligibility for instr. 3)
(120 other cmds. with the same port eligibility for both instr. 2 and instr. 3)
Total Instr. Length (bytes)11
Cutoff 1None (10976 other commands with the same cutoff)
Cutoff 2None
Instruction 1LFENCE
Swap 🔄 Instruction 2 SHL RAX,1 (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 IVB -asm "LFENCE;SHL RAX,1;MOV RAX,0X7FFFFFFF" && python3 normalize_cycles.py
Length Instruction 1 (bytes)3
Length Instruction 2 (bytes)3
Length Instruction 3 (bytes)5
Regioningtrue
Region Characterization Type6 (505 other commands with the same type)
Element Order Changes Regioning Effecttrue
Element Order Change DescriptionDifferent pattern of Type42

LFENCE;SHL RAX,1;MOV RAX,0X7FFFFFFF on additional architectures:

Other commands where Cutoff 1 = None:

10976 instructions, click for details

Other commands where Instruction 2 = SHL RAX,1:

444 instructions, click for details

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

444 instructions, click for details

Other commands where Region Characterization = Type6:

505 instructions, click for details

Other commands where the port eligibility for Instruction 2 is 1*p05:

1096 instructions, click for details

Other commands where the port eligibility for Instruction 3 is 1*p015:

3019 instructions, click for details

Other commands where the port eligibility for Instruction 2 is 1*p05 and for Instruction 3 is 1*p015: