Funswitch-loops
The compiler does not perform loop unrolling or function inlining when you specify ... With -funswitch-loops it also moves operands of conditions that are ... ,2020年10月10日 — I'm interested in the loop unswitching optimization option -funswitch-loops to GCC, in particular what actually enables it. ,Loop unswitching is a compiler optimization. It moves a conditional inside a loop outside of it by duplicating the loop's body, and placing a version of it ... ,This option tells the loop optimizer to use language constraints to derive bounds ... With -funswitch-loops it also moves operands of conditions that are ... ,The compiler does not perform loop unrolling or function inlining when you specify ... With -funswitch-loops it also moves operands of conditions that are ... ,... -funswitch-loops, -fpredictive-commoning, -fgcse-after-reload, ... -ftree-loop-distribute-patterns, -ftree-slp-vectorize, -fvect-cost-model, ... ,I tested your code on several machines with different compilers, and I can confirm that this does happen on gcc, both 4.8.5 and 9.1.0.
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 Funswitch-loops 相關參考資料
3.10 Options That Control Optimization - GCC, the GNU ...
The compiler does not perform loop unrolling or function inlining when you specify ... With -funswitch-loops it also moves operands of conditions that are ... https://gcc.gnu.org gcc -funswitch-loops and -O3 - Stack Overflow
2020年10月10日 — I'm interested in the loop unswitching optimization option -funswitch-loops to GCC, in particular what actually enables it. https://stackoverflow.com Loop unswitching - Wikipedia
Loop unswitching is a compiler optimization. It moves a conditional inside a loop outside of it by duplicating the loop's body, and placing a version of it ... https://en.wikipedia.org Optimize Options (Using the GNU Compiler Collection (GCC))
This option tells the loop optimizer to use language constraints to derive bounds ... With -funswitch-loops it also moves operands of conditions that are ... https://gcc.gnu.org Optimize Options - Using the GNU Compiler Collection (GCC)
The compiler does not perform loop unrolling or function inlining when you specify ... With -funswitch-loops it also moves operands of conditions that are ... https://gcc.gnu.org Using Optimization Switches on IBM SDK for Linux on Power
... -funswitch-loops, -fpredictive-commoning, -fgcse-after-reload, ... -ftree-loop-distribute-patterns, -ftree-slp-vectorize, -fvect-cost-model, ... https://www.ibm.com Why is this loop not being unswitched? - Stack Overflow
I tested your code on several machines with different compilers, and I can confirm that this does happen on gcc, both 4.8.5 and 9.1.0. https://stackoverflow.com |