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Constant Propagation Transformation: Difference between revisions
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Constant Propagation Transformation (view source)
Revision as of 11:18, 13 February 2025
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===Example=== | ===Example=== | ||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
|<syntaxhighlight lang="c"> | |<syntaxhighlight lang="c"> | ||
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// In the given example, variables a, b and c are known. | // In the given example, variables a, b and c are known. | ||
// They are propagated to the rest of the body of main. | // They are propagated to the rest of the body of main. | ||
#pragma EMX_TRANSFORMATION ConstPropagation | #pragma EMX_TRANSFORMATION ConstPropagation | ||
int main(void) { | int main(void) { | ||
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</syntaxhighlight> | </syntaxhighlight> | ||
|<syntaxhighlight lang="c"> | |<syntaxhighlight lang="c"> | ||
// | |||
// The following code is the generated code after the transformation has been applied. | // The following code is the generated code after the transformation has been applied. | ||
// | |||
int main(void) { | int main(void) { | ||
int a = 2; | int a = 2; | ||
int b = a; | int b = a; | ||
int c; | |||
int d; | |||
c = 4; | |||
c = | d = 6; | ||
d = | |||
return 0; | return 0; | ||
} | } | ||
</syntaxhighlight> | </syntaxhighlight> | ||
|} | |||