Compiler translations for constant addition
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Consider the following C code:
int x = 9 + 5;
Will the C compiler add 9 and 5 and reduce it to int x = 14; at compile time? or it will leave it as such that the addition will be evaluated at run time?
compiler-optimization
asked Nov 11 at 16:52
Ahmad Al-Mahdi
7018
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Consider the following C code:
int x = 9 + 5;
Will the C compiler add 9 and 5 and reduce it to int x = 14; at compile time? or it will leave it as such that the addition will be evaluated at run time?
compiler-optimization
asked Nov 11 at 16:52
Ahmad Al-Mahdi
7018
3
Constant folding is among the most trivial of optimizations, so any compiler that makes any pretense at optimization at all will do this.
– Brian Goetz
Nov 11 at 16:56
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
Consider the following C code:
int x = 9 + 5;
Will the C compiler add 9 and 5 and reduce it to int x = 14; at compile time? or it will leave it as such that the addition will be evaluated at run time?
compiler-optimization
asked Nov 11 at 16:52
Ahmad Al-Mahdi
7018
Consider the following C code:
int x = 9 + 5;
Will the C compiler add 9 and 5 and reduce it to int x = 14; at compile time? or it will leave it as such that the addition will be evaluated at run time?
compiler-optimization
compiler-optimization
asked Nov 11 at 16:52
Ahmad Al-Mahdi
7018
asked Nov 11 at 16:52
Ahmad Al-Mahdi
7018
asked Nov 11 at 16:52
Ahmad Al-Mahdi
7018
asked Nov 11 at 16:52
Ahmad Al-Mahdi
7018
asked Nov 11 at 16:52
Ahmad Al-Mahdi
7018
7018
3
Constant folding is among the most trivial of optimizations, so any compiler that makes any pretense at optimization at all will do this.
– Brian Goetz
Nov 11 at 16:56
add a comment |
3
Constant folding is among the most trivial of optimizations, so any compiler that makes any pretense at optimization at all will do this.
– Brian Goetz
Nov 11 at 16:56
3
3
Constant folding is among the most trivial of optimizations, so any compiler that makes any pretense at optimization at all will do this.
– Brian Goetz
Nov 11 at 16:56
Constant folding is among the most trivial of optimizations, so any compiler that makes any pretense at optimization at all will do this.
– Brian Goetz
Nov 11 at 16:56
add a comment |
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3
Constant folding is among the most trivial of optimizations, so any compiler that makes any pretense at optimization at all will do this.
– Brian Goetz
Nov 11 at 16:56