Simonas Kazlauskas 5d22b18bf2 Improve codegen of align_offset when stride == 1 ... Previously checking for `pmoda == 0` would get LLVM to generate branchy code, when, for `stride = 1` the offset can be computed without such a branch by doing effectively a `-p % a`. For well-known (constant) alignments, with the new ordering of these conditionals, we end up generating 2 to 3 cheap instructions on x86_64: movq %rdi, %rax negl %eax andl $7, %eax instead of 5+ as previously. For unknown alignments the new code also generates just 3 instructions: negq %rdi leaq -1(%rsi), %rax andq %rdi, %rax		2020-08-16 21:31:48 +03:00
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benches	mv std libs to library/	2020-07-27 19:51:13 -05:00
src	Improve codegen of align_offset when stride == 1	2020-08-16 21:31:48 +03:00
tests	Add drop check test & MaybeUninit::first_ptr_mut	2020-08-13 03:51:08 +00:00
Cargo.toml	mv std libs to library/	2020-07-27 19:51:13 -05:00