gcc loop unrolling
Why unroll loops? Modern processors pipeline instructions. They like knowing what's coming next and make all sorts of fancy optimisations ...,Why does GCC perform loop unrolling even though the flags corresponding to this behaviour are disabled? Think of it from a pragmatic view: what do you want ... ,Using the GNU Compiler Collection (GCC): Loop-Specific Pragmas. ... With this pragma, the programmer asserts that there are no loop-carried dependencies ... You can use this pragma to control how many times a loop should be unrolled. ,Loop-Specific Pragmas (Using the GNU Compiler Collection (GCC)) ... With this pragma, the programmer asserts that there are no loop-carried dependencies ... You can use this pragma to control how many times a loop should be unrolled. ,#pragma GCC ivdep: With this pragma, the programmer asserts that there are no ... GCC unroll n: You can use this pragma to control how many times a loop ... ,If loop unrolling is active, two passes are performed and the second is scheduled after loop unrolling. This option is enabled by default at optimization levels -O ... , GCC gives you a few different ways of handling this: Use #pragma directives, like #pragma GCC optimize ("string"...) , as seen in the GCC docs.
| 相關軟體 Write! 資訊 | |
|---|---|
 gcc loop unrolling 相關參考資料
Is GCC loop unrolling flag really effective? - Stack Overflow
Why unroll loops? Modern processors pipeline instructions. They like knowing what's coming next and make all sorts of fancy optimisations ... https://stackoverflow.com Loop unrolling behaviour in GCC - Stack Overflow
Why does GCC perform loop unrolling even though the flags corresponding to this behaviour are disabled? Think of it from a pragmatic view: what do you want ... https://stackoverflow.com Loop-Specific ... - Using the GNU Compiler Collection (GCC)
Using the GNU Compiler Collection (GCC): Loop-Specific Pragmas. ... With this pragma, the programmer asserts that there are no loop-carried dependencies ... You can use this pragma to control how many... https://gcc.gnu.org Loop-Specific Pragmas - GCC, the GNU Compiler Collection
Loop-Specific Pragmas (Using the GNU Compiler Collection (GCC)) ... With this pragma, the programmer asserts that there are no loop-carried dependencies ... You can use this pragma to control how many... https://gcc.gnu.org Loop-Specific Pragmas - Using the GNU Compiler Collection ...
#pragma GCC ivdep: With this pragma, the programmer asserts that there are no ... GCC unroll n: You can use this pragma to control how many times a loop ... https://embarc.org Optimize Options - Using the GNU Compiler Collection (GCC)
If loop unrolling is active, two passes are performed and the second is scheduled after loop unrolling. This option is enabled by default at optimization levels -O ... https://gcc.gnu.org Tell gcc to specifically unroll a loop - Stack Overflow
GCC gives you a few different ways of handling this: Use #pragma directives, like #pragma GCC optimize ("string"...) , as seen in the GCC docs. https://stackoverflow.com |