as: Xtensa Relaxation

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1 9.55.4 Xtensa Relaxation
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1 When an instruction operand is outside the range allowed for that
1 particular instruction field, 'as' can transform the code to use a
1 functionally-equivalent instruction or sequence of instructions.  This
1 process is known as "relaxation".  This is typically done for branch
1 instructions because the distance of the branch targets is not known
1 until assembly-time.  The Xtensa assembler offers branch relaxation and
1 also extends this concept to function calls, 'MOVI' instructions and
1 other instructions with immediate fields.
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Menu

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· Xtensa Branch Relaxation        Relaxation of Branches.
· Xtensa Call Relaxation          Relaxation of Function Calls.
· Xtensa Jump Relaxation          Relaxation of Jumps.
· Xtensa Immediate Relaxation     Relaxation of other Immediate Fields.
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