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In compiler design, static single assignment form (often abbreviated as SSA form or simply SSA) is a type of intermediate representation (IR) where each variable is assigned exactly once. SSA is used in most high-quality optimizing compilers for imperative languages, including LLVM , the GNU Compiler Collection , and many commercial compilers.
Pop a value from stack into local variable indx, short form. Base instruction 0x81 stobj <typeTok> Store a value of type typeTok at an address. Object model instruction 0x80 stsfld <field> Replace the value of the static field with val. Object model instruction 0x59 sub: Subtract value2 from value1, returning a new value. Base instruction 0xDA ...
The x86 instruction set refers to the set of instructions that x86-compatible microprocessors support. The instructions are usually part of an executable program, often stored as a computer file and executed on the processor. The x86 instruction set has been extended several times, introducing wider registers and datatypes as well as new ...
The x86 instruction set has several times been extended with SIMD (Single instruction, multiple data) instruction set extensions.These extensions, starting from the MMX instruction set extension introduced with Pentium MMX in 1997, typically define sets of wide registers and instructions that subdivide these registers into fixed-size lanes and perform a computation for each lane in parallel.
The name derives from the use of three operands in these statements even though instructions with fewer operands may occur. Since three-address code is used as an intermediate language within compilers, the operands will most likely not be concrete memory addresses or processor registers , but rather symbolic addresses that will be translated ...
F3 originated in military logistics to describe interchangeable parts: if F3 for two components have the same set of characteristics, i.e. they have the same shape or form, same connections or fit, and perform the same function, they can be substituted one for another. [1]
Bit manipulation instructions sets (BMI sets) are extensions to the x86 instruction set architecture for microprocessors from Intel and AMD. The purpose of these instruction sets is to improve the speed of bit manipulation. All the instructions in these sets are non-SIMD and operate only on general-purpose registers.
When used with d = 1, the only visible effect is to set the zero flag depending on the value of f. The instruction set does not contain conditional branch instructions. Instead, it contains conditional skip instructions which cause the following instruction to be ignored.