Compilers have a number of challenges when attempting to cope with either the VLIW or the superscalar paradigm. Why?

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Compilers have a number of challenges when attempting to cope with either the VLIW or the superscalar paradigm. Why?

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Compilers face challenges when attempting to cope with the Very Long Instruction Word (VLIW) or the superscalar paradigm due to the complexity of these architectures.

 

VLIW architectures require the compiler to generate code that can take advantage of the large number of parallel execution units available in the processor. This requires the compiler to perform complex scheduling and register allocation operations, as well as to ensure that dependencies between instructions are taken into account.

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