[Bug tree-optimization/91776] `-fsplit-paths` generates slower code on arm

2019-09-17 Thread yhr-_-yhr at qq dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91776 --- Comment #2 from yhr-_-yhr at qq dot com --- > I think it's BM2837, ie. Cortex-A53. Or did you mean a different Pi? oops you're right, I just got this pointed out when I showed this post to my friend. I just copied it from `cat

[Bug tree-optimization/91776] New: `-fsplit-paths` generates slower code on arm

2019-09-16 Thread yhr-_-yhr at qq dot com
: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: yhr-_-yhr at qq dot com Target Milestone: --- I'm doing this test on a Raspberry Pi Model 3B+. The CPU is BCM2835 ARMv7. Writing a silly program calculating the cycle length of Fibonacci sequence mod