COBOL Manual for TNS/E Programs (H06.03+)

Program Compilation

HP COBOL Manual for TNS/E Programs—520347-003

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OPTIMIZE

OPTIMIZE specifies the extent to which the compiler attempts to optimize the code it

emits.

level

is 0, 1, or 2. Optimization level affects compilation speed. The effect of each level

is:

Level Effect

0 Code is not optimized. Provided in case other optimization levels cause

errors. Supports symbolic debugging; data is always in memory.

(default)

Code is optimized within statements and across statement boundaries. The

resulting code is more efficient than that produced by lower levels of

optimization. Supports symbolic debugging; data is not always in memory.

2 Code is optimized within statements and across statement boundaries, and

the resulting code is more efficient than code produced by lower levels.

Note. Code generated under OPTIMIZE 1 is more difficult to debug than code generated

under OPTIMIZE 0. Optimization under OPTIMIZE 2 obscures statement boundaries.

Before you attempt to use a symbolic debugger to debug a program, do either:

•

Be certain that the program was compiled with OPTIMIZE 0.

•

Use the output generated by the INNERLIST directive to be certain of statement

boundaries.

Default: OPTIMIZE 1

Placement: Outside the boundary of a separately compiled program

Scope: The optimization level active at the beginning of a separately compiled

program determines the level of optimization for that program and any

programs it contains.

Dependencies: None

OPTIMIZE level

VST297.vsd