-
Notifications
You must be signed in to change notification settings - Fork 12.7k
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
Rollup of 15 pull requests #52958
Rollup of 15 pull requests #52958
Commits on Jul 28, 2018
-
Configuration menu - View commit details
-
Copy full SHA for 8e88d64 - Browse repository at this point
Copy the full SHA 8e88d64View commit details
Commits on Jul 30, 2018
-
Configuration menu - View commit details
-
Copy full SHA for 6d5694a - Browse repository at this point
Copy the full SHA 6d5694aView commit details -
Configuration menu - View commit details
-
Copy full SHA for d5f1f70 - Browse repository at this point
Copy the full SHA d5f1f70View commit details
Commits on Jul 31, 2018
-
tests/ui: Add missing mips{64} ignores
dragan.mladjenovic committedJul 31, 2018 Configuration menu - View commit details
-
Copy full SHA for f985e6c - Browse repository at this point
Copy the full SHA f985e6cView commit details -
Use SetLenOnDrop in Vec::truncate()
This avoids a redundant length check in some cases when calling `Vec::truncate` or `Vec::clear`. Fixes rust-lang#51802
Configuration menu - View commit details
-
Copy full SHA for 38e311e - Browse repository at this point
Copy the full SHA 38e311eView commit details -
Configuration menu - View commit details
-
Copy full SHA for d94bdf8 - Browse repository at this point
Copy the full SHA d94bdf8View commit details -
Configuration menu - View commit details
-
Copy full SHA for 84dc485 - Browse repository at this point
Copy the full SHA 84dc485View commit details -
Don't count MIR locals as borrowed after StorageDead when finding loc…
…als live across a yield terminator
Configuration menu - View commit details
-
Copy full SHA for 0babbf1 - Browse repository at this point
Copy the full SHA 0babbf1View commit details
Commits on Aug 1, 2018
-
Configuration menu - View commit details
-
Copy full SHA for dbc0cd9 - Browse repository at this point
Copy the full SHA dbc0cd9View commit details -
Another SmallVec.extend optimization
This improves SmallVec.extend even more over rust-lang#52859 Before (as of rust-lang#52859): ``` test small_vec::tests::fill_small_vec_1_10_with_cap ... bench: 31 ns/iter (+/- 5) test small_vec::tests::fill_small_vec_1_10_wo_cap ... bench: 70 ns/iter (+/- 4) test small_vec::tests::fill_small_vec_1_50_with_cap ... bench: 36 ns/iter (+/- 3) test small_vec::tests::fill_small_vec_1_50_wo_cap ... bench: 256 ns/iter (+/- 17) test small_vec::tests::fill_small_vec_32_10_with_cap ... bench: 31 ns/iter (+/- 5) test small_vec::tests::fill_small_vec_32_10_wo_cap ... bench: 26 ns/iter (+/- 1) test small_vec::tests::fill_small_vec_32_50_with_cap ... bench: 49 ns/iter (+/- 4) test small_vec::tests::fill_small_vec_32_50_wo_cap ... bench: 219 ns/iter (+/- 11) test small_vec::tests::fill_small_vec_8_10_with_cap ... bench: 32 ns/iter (+/- 2) test small_vec::tests::fill_small_vec_8_10_wo_cap ... bench: 61 ns/iter (+/- 12) test small_vec::tests::fill_small_vec_8_50_with_cap ... bench: 37 ns/iter (+/- 3) test small_vec::tests::fill_small_vec_8_50_wo_cap ... bench: 210 ns/iter (+/- 10) ``` After: ``` test small_vec::tests::fill_small_vec_1_10_wo_cap ... bench: 31 ns/iter (+/- 3) test small_vec::tests::fill_small_vec_1_50_with_cap ... bench: 39 ns/iter (+/- 4) test small_vec::tests::fill_small_vec_1_50_wo_cap ... bench: 35 ns/iter (+/- 4) test small_vec::tests::fill_small_vec_32_10_with_cap ... bench: 37 ns/iter (+/- 3) test small_vec::tests::fill_small_vec_32_10_wo_cap ... bench: 32 ns/iter (+/- 2) test small_vec::tests::fill_small_vec_32_50_with_cap ... bench: 52 ns/iter (+/- 4) test small_vec::tests::fill_small_vec_32_50_wo_cap ... bench: 46 ns/iter (+/- 0) test small_vec::tests::fill_small_vec_8_10_with_cap ... bench: 35 ns/iter (+/- 4) test small_vec::tests::fill_small_vec_8_10_wo_cap ... bench: 31 ns/iter (+/- 0) test small_vec::tests::fill_small_vec_8_50_with_cap ... bench: 40 ns/iter (+/- 15) test small_vec::tests::fill_small_vec_8_50_wo_cap ... bench: 36 ns/iter (+/- 2) ```
Configuration menu - View commit details
-
Copy full SHA for e462c06 - Browse repository at this point
Copy the full SHA e462c06View commit details -
Configuration menu - View commit details
-
Copy full SHA for b5ed39f - Browse repository at this point
Copy the full SHA b5ed39fView commit details -
Configuration menu - View commit details
-
Copy full SHA for 1d64b24 - Browse repository at this point
Copy the full SHA 1d64b24View commit details -
Configuration menu - View commit details
-
Copy full SHA for 9bc4fbb - Browse repository at this point
Copy the full SHA 9bc4fbbView commit details -
rustc: Trim down the
rust_2018_idioms
lint groupThese migration lints aren't all up to par in terms of a good migration experience. Some, like `unreachable_pub`, hit bugs like rust-lang#52665 and unprepared macros to be handled enough of the time. Others like linting against `#[macro_use]` are swimming upstream in an ecosystem that's not quite ready (and slightly buggy pending a few current PRs). The general idea is that we will continue to recommend the `rust_2018_idioms` lint group as part of the transition guide (as an optional step) but we'll be much more selective about which lints make it into this group. Only those with a strong track record of not causing too much churn will make the cut. cc rust-lang#52679
Configuration menu - View commit details
-
Copy full SHA for 27b3cb5 - Browse repository at this point
Copy the full SHA 27b3cb5View commit details -
1.27 actually added the
armv5te-unknown-linux-musleabi
targetThe PR title says `armv5te-unknown-linux-musl`, but it looks like the final code merge renamed the target to `armv5te-unknown-linux-musleabi`. `rustup` reports this as correct as well. The [Rust Platform Support](https://forge.rust-lang.org/platform-support.html) page needs this added as well, but I'm not certain what codebase that is generated from.
Configuration menu - View commit details
-
Copy full SHA for c2d57db - Browse repository at this point
Copy the full SHA c2d57dbView commit details -
Configuration menu - View commit details
-
Copy full SHA for 8bbf042 - Browse repository at this point
Copy the full SHA 8bbf042View commit details -
Configuration menu - View commit details
-
Copy full SHA for f685142 - Browse repository at this point
Copy the full SHA f685142View commit details -
Rollup merge of rust-lang#52793 - davidtwco:issue-49824, r=pnkfelix
Add test for NLL: unexpected "free region `` does not outlive" error Fixes rust-lang#49824. r? @pnkfelix @nikomatsakis
Configuration menu - View commit details
-
Copy full SHA for 334da29 - Browse repository at this point
Copy the full SHA 334da29View commit details -
Rollup merge of rust-lang#52799 - Mark-Simulacrum:attr-id-bitvecs, r=…
…michaelwoerister Use BitVector for global sets of AttrId
Configuration menu - View commit details
-
Copy full SHA for 42243f8 - Browse repository at this point
Copy the full SHA 42243f8View commit details -
Rollup merge of rust-lang#52809 - davidtwco:issue-49579, r=pnkfelix
Add test for unexpected region for local data ReStatic Fixes rust-lang#49579. r? @pnkfelix @nikomatsakis
Configuration menu - View commit details
-
Copy full SHA for 4d1ddfe - Browse repository at this point
Copy the full SHA 4d1ddfeView commit details -
Rollup merge of rust-lang#52834 - matthewjasper:allow-zst-conflicts, …
…r=pnkfelix [NLL] Allow conflicting borrows of promoted length zero arrays This is currently overkill as there's no way to create two conflicting borrows of any promoted. It is possible that the following code might not fail due to const eval in the future (@oli-obk?). In which case either the array marked needs to not be promoted, or to be checked for conflicts ```rust static mut A: () = { let mut y = None; let z; let mut done_y = false; loop { let x = &mut [1]; // < this array if done_y { z = x; break; } y = Some(x); done_y = true; } some_const_fn(y, z); // some_const_fn expects that y to not alias z. }; ``` r? @pnkfelix @nikomatsakis closes rust-lang#52671 cc rust-lang#51823
Configuration menu - View commit details
-
Copy full SHA for d5fcd27 - Browse repository at this point
Copy the full SHA d5fcd27View commit details -
Rollup merge of rust-lang#52835 - GuillaumeGomez:ice-rustdoc-links, r…
…=eddyb Fix Alias intra doc ICE Fixes rust-lang#52611. cc @QuietMisdreavus r? @varkor
Configuration menu - View commit details
-
Copy full SHA for f52ef3b - Browse repository at this point
Copy the full SHA f52ef3bView commit details -
Rollup merge of rust-lang#52854 - RalfJung:memrchr, r=Kimundi
fix memrchr in miri The previous PR rust-lang#52744 was not enough because it assumed that the split between the `mid` and `end` parts returned by `align_to` was aligned. But really the only guarantee we have is that the `mid` part is aligned, so make use of that.
Configuration menu - View commit details
-
Copy full SHA for e3928cc - Browse repository at this point
Copy the full SHA e3928ccView commit details -
Rollup merge of rust-lang#52899 - draganmladjenovic:ui_tests64, r=ale…
…xcrichton tests/ui: Add missing mips{64} ignores
Configuration menu - View commit details
-
Copy full SHA for 3ae03e9 - Browse repository at this point
Copy the full SHA 3ae03e9View commit details -
Rollup merge of rust-lang#52908 - lnicola:vec-truncate-opt, r=alexcri…
…chton Use SetLenOnDrop in Vec::truncate() This avoids a redundant length check in some cases when calling `Vec::truncate` or `Vec::clear`. Fixes rust-lang#51802 Note that the generated code still seems suboptimal. I tested with the following functions: ```rust #[no_mangle] pub extern fn foo(x: &mut Vec<u8>) { x.clear(); } #[no_mangle] pub extern fn bar(x: &mut Vec<u8>) { x.truncate(5); } #[no_mangle] pub extern fn baz(x: &mut Vec<u8>, n: usize) { x.truncate(n); } #[no_mangle] pub extern fn foo_string(x: &mut Vec<String>) { x.clear(); } #[no_mangle] pub extern fn bar_string(x: &mut Vec<String>) { x.truncate(5); } #[no_mangle] pub extern fn baz_string(x: &mut Vec<String>, n: usize) { x.truncate(n); } ``` <details> <summary>Old output</summary> ```asm 00000000000460a0 <foo>: 460a0: 48 83 7f 10 00 cmpq $0x0,0x10(%rdi) 460a5: 74 08 je 460af <foo+0xf> 460a7: 48 c7 47 10 00 00 00 movq $0x0,0x10(%rdi) 460ae: 00 460af: c3 retq 00000000000460b0 <bar>: 460b0: 48 83 7f 10 06 cmpq $0x6,0x10(%rdi) 460b5: 72 08 jb 460bf <bar+0xf> 460b7: 48 c7 47 10 05 00 00 movq $0x5,0x10(%rdi) 460be: 00 460bf: c3 retq 00000000000460c0 <baz>: 460c0: 48 39 77 10 cmp %rsi,0x10(%rdi) 460c4: 76 04 jbe 460ca <baz+0xa> 460c6: 48 89 77 10 mov %rsi,0x10(%rdi) 460ca: c3 retq 460cb: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 00000000000460d0 <foo_string>: 460d0: 41 57 push %r15 460d2: 41 56 push %r14 460d4: 53 push %rbx 460d5: 48 8b 47 10 mov 0x10(%rdi),%rax 460d9: 48 85 c0 test %rax,%rax 460dc: 74 4a je 46128 <foo_string+0x58> 460de: 49 89 fe mov %rdi,%r14 460e1: 48 8b 0f mov (%rdi),%rcx 460e4: 48 8d 14 40 lea (%rax,%rax,2),%rdx 460e8: 48 8d 58 ff lea -0x1(%rax),%rbx 460ec: 4c 8d 3c d1 lea (%rcx,%rdx,8),%r15 460f0: 49 83 c7 f0 add $0xfffffffffffffff0,%r15 460f4: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 460fb: 00 00 00 460fe: 66 90 xchg %ax,%ax 46100: 49 89 5e 10 mov %rbx,0x10(%r14) 46104: 49 8b 37 mov (%r15),%rsi 46107: 48 85 f6 test %rsi,%rsi 4610a: 74 0e je 4611a <foo_string+0x4a> 4610c: 49 8b 7f f8 mov -0x8(%r15),%rdi 46110: ba 01 00 00 00 mov $0x1,%edx 46115: e8 a6 e9 ff ff callq 44ac0 <__rust_dealloc@plt> 4611a: 48 83 c3 ff add $0xffffffffffffffff,%rbx 4611e: 49 83 c7 e8 add $0xffffffffffffffe8,%r15 46122: 48 83 fb ff cmp $0xffffffffffffffff,%rbx 46126: 75 d8 jne 46100 <foo_string+0x30> 46128: 5b pop %rbx 46129: 41 5e pop %r14 4612b: 41 5f pop %r15 4612d: c3 retq 4612e: 66 90 xchg %ax,%ax 0000000000046130 <bar_string>: 46130: 41 57 push %r15 46132: 41 56 push %r14 46134: 53 push %rbx 46135: 4c 8b 7f 10 mov 0x10(%rdi),%r15 46139: 49 83 ff 06 cmp $0x6,%r15 4613d: 72 49 jb 46188 <bar_string+0x58> 4613f: 49 89 fe mov %rdi,%r14 46142: 48 8b 07 mov (%rdi),%rax 46145: 4b 8d 0c 7f lea (%r15,%r15,2),%rcx 46149: 48 8d 1c c8 lea (%rax,%rcx,8),%rbx 4614d: 48 83 c3 f0 add $0xfffffffffffffff0,%rbx 46151: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 46158: 00 00 00 4615b: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 46160: 49 83 c7 ff add $0xffffffffffffffff,%r15 46164: 4d 89 7e 10 mov %r15,0x10(%r14) 46168: 48 8b 33 mov (%rbx),%rsi 4616b: 48 85 f6 test %rsi,%rsi 4616e: 74 0e je 4617e <bar_string+0x4e> 46170: 48 8b 7b f8 mov -0x8(%rbx),%rdi 46174: ba 01 00 00 00 mov $0x1,%edx 46179: e8 42 e9 ff ff callq 44ac0 <__rust_dealloc@plt> 4617e: 48 83 c3 e8 add $0xffffffffffffffe8,%rbx 46182: 49 83 ff 05 cmp $0x5,%r15 46186: 77 d8 ja 46160 <bar_string+0x30> 46188: 5b pop %rbx 46189: 41 5e pop %r14 4618b: 41 5f pop %r15 4618d: c3 retq 4618e: 66 90 xchg %ax,%ax 0000000000046190 <baz_string>: 46190: 41 57 push %r15 46192: 41 56 push %r14 46194: 41 54 push %r12 46196: 53 push %rbx 46197: 50 push %rax 46198: 4c 8b 67 10 mov 0x10(%rdi),%r12 4619c: 49 39 f4 cmp %rsi,%r12 4619f: 76 46 jbe 461e7 <baz_string+0x57> 461a1: 49 89 f6 mov %rsi,%r14 461a4: 49 89 ff mov %rdi,%r15 461a7: 48 8b 07 mov (%rdi),%rax 461aa: 4b 8d 0c 64 lea (%r12,%r12,2),%rcx 461ae: 48 8d 1c c8 lea (%rax,%rcx,8),%rbx 461b2: 48 83 c3 f0 add $0xfffffffffffffff0,%rbx 461b6: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 461bd: 00 00 00 461c0: 49 83 c4 ff add $0xffffffffffffffff,%r12 461c4: 4d 89 67 10 mov %r12,0x10(%r15) 461c8: 48 8b 33 mov (%rbx),%rsi 461cb: 48 85 f6 test %rsi,%rsi 461ce: 74 0e je 461de <baz_string+0x4e> 461d0: 48 8b 7b f8 mov -0x8(%rbx),%rdi 461d4: ba 01 00 00 00 mov $0x1,%edx 461d9: e8 e2 e8 ff ff callq 44ac0 <__rust_dealloc@plt> 461de: 48 83 c3 e8 add $0xffffffffffffffe8,%rbx 461e2: 4d 39 f4 cmp %r14,%r12 461e5: 77 d9 ja 461c0 <baz_string+0x30> 461e7: 48 83 c4 08 add $0x8,%rsp 461eb: 5b pop %rbx 461ec: 41 5c pop %r12 461ee: 41 5e pop %r14 461f0: 41 5f pop %r15 461f2: c3 retq 461f3: 90 nop 461f4: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 461fb: 00 00 00 461fe: 66 90 xchg %ax,%ax ``` </details> <details> <summary>New output</summary> ```asm 0000000000084d10 <foo>: 84d10: 48 c7 47 10 00 00 00 movq $0x0,0x10(%rdi) 84d17: 00 84d18: c3 retq 84d19: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 0000000000084d20 <bar>: 84d20: 48 8b 47 10 mov 0x10(%rdi),%rax 84d24: 48 83 f8 05 cmp $0x5,%rax 84d28: b9 05 00 00 00 mov $0x5,%ecx 84d2d: 48 0f 42 c8 cmovb %rax,%rcx 84d31: 48 89 4f 10 mov %rcx,0x10(%rdi) 84d35: c3 retq 84d36: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 84d3d: 00 00 00 0000000000084d40 <baz>: 84d40: 48 8b 47 10 mov 0x10(%rdi),%rax 84d44: 48 39 f0 cmp %rsi,%rax 84d47: 48 0f 47 c6 cmova %rsi,%rax 84d4b: 48 89 47 10 mov %rax,0x10(%rdi) 84d4f: c3 retq 0000000000084d50 <foo_string>: 84d50: 41 57 push %r15 84d52: 41 56 push %r14 84d54: 53 push %rbx 84d55: 49 89 fe mov %rdi,%r14 84d58: 4c 8b 7f 10 mov 0x10(%rdi),%r15 84d5c: 4d 85 ff test %r15,%r15 84d5f: 74 2f je 84d90 <foo_string+0x40> 84d61: 49 8b 06 mov (%r14),%rax 84d64: 4b 8d 0c 7f lea (%r15,%r15,2),%rcx 84d68: 48 8d 1c c8 lea (%rax,%rcx,8),%rbx 84d6c: 48 83 c3 f0 add $0xfffffffffffffff0,%rbx 84d70: 48 8b 33 mov (%rbx),%rsi 84d73: 48 85 f6 test %rsi,%rsi 84d76: 74 0e je 84d86 <foo_string+0x36> 84d78: 48 8b 7b f8 mov -0x8(%rbx),%rdi 84d7c: ba 01 00 00 00 mov $0x1,%edx 84d81: e8 1a b1 ff ff callq 7fea0 <__rust_dealloc@plt> 84d86: 48 83 c3 e8 add $0xffffffffffffffe8,%rbx 84d8a: 49 83 c7 ff add $0xffffffffffffffff,%r15 84d8e: 75 e0 jne 84d70 <foo_string+0x20> 84d90: 49 c7 46 10 00 00 00 movq $0x0,0x10(%r14) 84d97: 00 84d98: 5b pop %rbx 84d99: 41 5e pop %r14 84d9b: 41 5f pop %r15 84d9d: c3 retq 84d9e: 66 90 xchg %ax,%ax 0000000000084da0 <bar_string>: 84da0: 41 57 push %r15 84da2: 41 56 push %r14 84da4: 53 push %rbx 84da5: 49 89 fe mov %rdi,%r14 84da8: 4c 8b 7f 10 mov 0x10(%rdi),%r15 84dac: 49 83 ff 06 cmp $0x6,%r15 84db0: 72 44 jb 84df6 <bar_string+0x56> 84db2: 49 8b 06 mov (%r14),%rax 84db5: 4b 8d 0c 7f lea (%r15,%r15,2),%rcx 84db9: 48 8d 1c c8 lea (%rax,%rcx,8),%rbx 84dbd: 48 83 c3 f0 add $0xfffffffffffffff0,%rbx 84dc1: 49 83 c7 fb add $0xfffffffffffffffb,%r15 84dc5: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 84dcc: 00 00 00 84dcf: 90 nop 84dd0: 48 8b 33 mov (%rbx),%rsi 84dd3: 48 85 f6 test %rsi,%rsi 84dd6: 74 0e je 84de6 <bar_string+0x46> 84dd8: 48 8b 7b f8 mov -0x8(%rbx),%rdi 84ddc: ba 01 00 00 00 mov $0x1,%edx 84de1: e8 ba b0 ff ff callq 7fea0 <__rust_dealloc@plt> 84de6: 48 83 c3 e8 add $0xffffffffffffffe8,%rbx 84dea: 49 83 c7 ff add $0xffffffffffffffff,%r15 84dee: 75 e0 jne 84dd0 <bar_string+0x30> 84df0: 41 bf 05 00 00 00 mov $0x5,%r15d 84df6: 4d 89 7e 10 mov %r15,0x10(%r14) 84dfa: 5b pop %rbx 84dfb: 41 5e pop %r14 84dfd: 41 5f pop %r15 84dff: c3 retq 0000000000084e00 <baz_string>: 84e00: 41 57 push %r15 84e02: 41 56 push %r14 84e04: 41 54 push %r12 84e06: 53 push %rbx 84e07: 50 push %rax 84e08: 49 89 ff mov %rdi,%r15 84e0b: 48 8b 47 10 mov 0x10(%rdi),%rax 84e0f: 49 89 c4 mov %rax,%r12 84e12: 49 29 f4 sub %rsi,%r12 84e15: 76 3c jbe 84e53 <baz_string+0x53> 84e17: 49 89 f6 mov %rsi,%r14 84e1a: 49 8b 0f mov (%r15),%rcx 84e1d: 48 8d 04 40 lea (%rax,%rax,2),%rax 84e21: 48 8d 1c c1 lea (%rcx,%rax,8),%rbx 84e25: 48 83 c3 f0 add $0xfffffffffffffff0,%rbx 84e29: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 84e30: 48 8b 33 mov (%rbx),%rsi 84e33: 48 85 f6 test %rsi,%rsi 84e36: 74 0e je 84e46 <baz_string+0x46> 84e38: 48 8b 7b f8 mov -0x8(%rbx),%rdi 84e3c: ba 01 00 00 00 mov $0x1,%edx 84e41: e8 5a b0 ff ff callq 7fea0 <__rust_dealloc@plt> 84e46: 48 83 c3 e8 add $0xffffffffffffffe8,%rbx 84e4a: 49 83 c4 ff add $0xffffffffffffffff,%r12 84e4e: 75 e0 jne 84e30 <baz_string+0x30> 84e50: 4c 89 f0 mov %r14,%rax 84e53: 49 89 47 10 mov %rax,0x10(%r15) 84e57: 48 83 c4 08 add $0x8,%rsp 84e5b: 5b pop %rbx 84e5c: 41 5c pop %r12 84e5e: 41 5e pop %r14 84e60: 41 5f pop %r15 84e62: c3 retq 84e63: 90 nop 84e64: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 84e6b: 00 00 00 84e6e: 66 90 xchg %ax,%ax ``` </details> For calling `truncate` with non-zero lengths on non-`Drop` types, it seems that a redundant load and comparison gets replaced with an awkward sequence with a conditional move. In the unknown length case, the new code is no longer awkward. Maybe someone moderately proficient at assembly could tell if this looks like a win or not. --- This came up when discussing replacing `unsafe { vec.set_len(0) }` with `vec.clear()` in a project where the author was worried about potential performance degradation. It might be worth replacing some unsafe code, even it it's trivial to see that it's actually safe.
Configuration menu - View commit details
-
Copy full SHA for 1997c70 - Browse repository at this point
Copy the full SHA 1997c70View commit details -
Rollup merge of rust-lang#52915 - Zoxc:refine-gen-borrow-analysis, r=…
…eddyb Don't count MIR locals as borrowed after StorageDead when finding locals live across a yield terminator This should fix rust-lang#52792. r? @eddyb
Configuration menu - View commit details
-
Copy full SHA for b40b899 - Browse repository at this point
Copy the full SHA b40b899View commit details -
Rollup merge of rust-lang#52926 - alexcrichton:trim-idioms-lints, r=o…
…li-obk rustc: Trim down the `rust_2018_idioms` lint group These migration lints aren't all up to par in terms of a good migration experience. Some, like `unreachable_pub`, hit bugs like rust-lang#52665 and unprepared macros to be handled enough of the time. Others like linting against `#[macro_use]` are swimming upstream in an ecosystem that's not quite ready (and slightly buggy pending a few current PRs). The general idea is that we will continue to recommend the `rust_2018_idioms` lint group as part of the transition guide (as an optional step) but we'll be much more selective about which lints make it into this group. Only those with a strong track record of not causing too much churn will make the cut. cc rust-lang#52679
Configuration menu - View commit details
-
Copy full SHA for 110b71a - Browse repository at this point
Copy the full SHA 110b71aView commit details -
Rollup merge of rust-lang#52930 - eddyb:issue-52489, r=cramertj
rustc_resolve: record single-segment extern crate import resolutions. Fixes rust-lang#52489 by recording special-cased single-segment imports for later (e.g. stability) checks. cc @alexcrichton @Mark-Simulacrum @petrochenkov Does this need to be backported?
Configuration menu - View commit details
-
Copy full SHA for 2893bd0 - Browse repository at this point
Copy the full SHA 2893bd0View commit details -
Rollup merge of rust-lang#52939 - ljedrz:fix_51746, r=kennytm
Make io::Read::read_to_end consider io::Take::limit Add a custom implementation of `io::Read::read_to_end` for `io::Take` that doesn't reserve the default 32 bytes but rather `Take::limit` if `Take::limit < 32`. It's a conservative adjustment that preserves the default behavior for `Take::limit >= 32`. Fixes rust-lang#51746.
Configuration menu - View commit details
-
Copy full SHA for eeb7b6a - Browse repository at this point
Copy the full SHA eeb7b6aView commit details -
Rollup merge of rust-lang#52942 - llogiq:smallvec-opt, r=Mark-Simulacrum
Another SmallVec.extend optimization This improves SmallVec.extend even more over rust-lang#52859 while making the code easier to read. Before ``` test small_vec::tests::fill_small_vec_1_10_with_cap ... bench: 31 ns/iter (+/- 5) test small_vec::tests::fill_small_vec_1_10_wo_cap ... bench: 70 ns/iter (+/- 4) test small_vec::tests::fill_small_vec_1_50_with_cap ... bench: 36 ns/iter (+/- 3) test small_vec::tests::fill_small_vec_1_50_wo_cap ... bench: 256 ns/iter (+/- 17) test small_vec::tests::fill_small_vec_32_10_with_cap ... bench: 31 ns/iter (+/- 5) test small_vec::tests::fill_small_vec_32_10_wo_cap ... bench: 26 ns/iter (+/- 1) test small_vec::tests::fill_small_vec_32_50_with_cap ... bench: 49 ns/iter (+/- 4) test small_vec::tests::fill_small_vec_32_50_wo_cap ... bench: 219 ns/iter (+/- 11) test small_vec::tests::fill_small_vec_8_10_with_cap ... bench: 32 ns/iter (+/- 2) test small_vec::tests::fill_small_vec_8_10_wo_cap ... bench: 61 ns/iter (+/- 12) test small_vec::tests::fill_small_vec_8_50_with_cap ... bench: 37 ns/iter (+/- 3) test small_vec::tests::fill_small_vec_8_50_wo_cap ... bench: 210 ns/iter (+/- 10) ``` After: ``` test small_vec::tests::fill_small_vec_1_10_wo_cap ... bench: 31 ns/iter (+/- 3) test small_vec::tests::fill_small_vec_1_50_with_cap ... bench: 39 ns/iter (+/- 4) test small_vec::tests::fill_small_vec_1_50_wo_cap ... bench: 35 ns/iter (+/- 4) test small_vec::tests::fill_small_vec_32_10_with_cap ... bench: 37 ns/iter (+/- 3) test small_vec::tests::fill_small_vec_32_10_wo_cap ... bench: 32 ns/iter (+/- 2) test small_vec::tests::fill_small_vec_32_50_with_cap ... bench: 52 ns/iter (+/- 4) test small_vec::tests::fill_small_vec_32_50_wo_cap ... bench: 46 ns/iter (+/- 0) test small_vec::tests::fill_small_vec_8_10_with_cap ... bench: 35 ns/iter (+/- 4) test small_vec::tests::fill_small_vec_8_10_wo_cap ... bench: 31 ns/iter (+/- 0) test small_vec::tests::fill_small_vec_8_50_with_cap ... bench: 40 ns/iter (+/- 15) test small_vec::tests::fill_small_vec_8_50_wo_cap ... bench: 36 ns/iter (+/- 2) ```
Configuration menu - View commit details
-
Copy full SHA for 6e7e385 - Browse repository at this point
Copy the full SHA 6e7e385View commit details -
Rollup merge of rust-lang#52947 - Susurrus:patch-1, r=alexcrichton
1.27 actually added the `armv5te-unknown-linux-musleabi` target The PR title says `armv5te-unknown-linux-musl`, but it looks like the final code merge renamed the target to `armv5te-unknown-linux-musleabi`. `rustup` reports this as correct as well. The [Rust Platform Support](https://forge.rust-lang.org/platform-support.html) page needs this added as well, but I'm not certain what codebase that is generated from.
Configuration menu - View commit details
-
Copy full SHA for b2392fa - Browse repository at this point
Copy the full SHA b2392faView commit details -
Rollup merge of rust-lang#52954 - cramertj:async-parse, r=petrochenkov
async can begin expressions Fix rust-lang#52951 r? @petrochenkov
Configuration menu - View commit details
-
Copy full SHA for 3e7897f - Browse repository at this point
Copy the full SHA 3e7897fView commit details