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Rollup of 9 pull requests - #82547
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GuillaumeGomez wants to merge 21 commits into
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…ake transition over hir::ItemKind simpler
Refactor inlining decisions so that inexpensive criteria are considered first: 1. Based on code generation attributes. 2. Based on MIR availability (examines call graph). 3. Based on MIR body.
…tions Signed-off-by: Nell Shamrell <nellshamrell@gmail.com>
This version adds the ability to use `rdpmc` hardware-based performance counters instead of wall-clock time for measuring duration. This also introduces a dependency on the `perf-event-open-sys` crate on Linux which is used when using hardware counters.
For example, gdb: ``` (gdb) info threads Id Target Id Frame 1 Thread 0x7fffefa7ec40 (LWP 2905) "rustc" __pthread_clockjoin_ex (threadid=140737214134016, thread_return=0x0, clockid=<optimized out>, abstime=<optimized out>, block=<optimized out>) at pthread_join_common.c:145 2 Thread 0x7fffefa7b700 (LWP 2957) "rustc" 0x00007ffff125eaa8 in llvm::X86_MC::initLLVMToSEHAndCVRegMapping(llvm::MCRegisterInfo*) () from /home/wesley/.rustup/toolchains/stage1/lib/librustc_driver-f866439e29074957.so 3 Thread 0x7fffeef0f700 (LWP 3116) "rustc" futex_wait_cancelable (private=0, expected=0, futex_word=0x7fffe8602ac8) at ../sysdeps/nptl/futex-internal.h:183 * 4 Thread 0x7fffeed0e700 (LWP 3123) "rustc" rustc_codegen_ssa::back::write::spawn_work (cgcx=..., work=...) at /home/wesley/code/rust/rust/compiler/rustc_codegen_ssa/src/back/write.rs:1573 6 Thread 0x7fffe113b700 (LWP 3150) "opt foof.7rcbfp" 0x00007ffff2940e62 in llvm::CallGraph::populateCallGraphNode(llvm::CallGraphNode*) () from /home/wesley/.rustup/toolchains/stage1/lib/librustc_driver-f866439e29074957.so 8 Thread 0x7fffe0d39700 (LWP 3158) "opt foof.7rcbfp" 0x00007fffefe8998e in malloc_consolidate (av=av@entry=0x7ffe2c000020) at malloc.c:4492 9 Thread 0x7fffe0f3a700 (LWP 3162) "opt foof.7rcbfp" 0x00007fffefef27c4 in __libc_open64 (file=0x7fffe0f38608 "foof.foof.7rcbfp3g-cgu.6.rcgu.o", oflag=524865) at ../sysdeps/unix/sysv/linux/open64.c:48 (gdb) ```
For browsers that support woff2 (most modern ones: https://caniuse.com/woff2), this offers a reduction in download size for these two fonts from 362k to 257k (32% reduction). It decreases the total page size for `struct.String.html` (counting all subresources) by about 2.5%. If this is interesting, I'm happy to apply the same treatment to the other fonts, but these two are the biggest.
…, r=jyn514 Make ItemKind::ExternCrate looks like hir::ItemKind::ExternCrate to make transition over hir::ItemKind simpler It was surprisingly difficult to make this change, mostly because of two issues: * We now store the `ExternCrate` name in the parent struct (`clean::Item`), which forced me to modify the json conversion code a bit more than expected. * The second problem was that, since we now have a `Some(name)`, it was trying to render it, ending up in a panic because we ended up in a `unreachable` statement. The solution was simply to add `!item.is_extern_crate()` in `formats::renderer` before calling `cx.item(item, &cache)?;`. I'll continue to replace all the `clean::ItemKind` variants one by one until it looks exactly like `hir::ItemKind`. Then we'll simply discard the rustdoc type. Once this done, we'll be able to discard `clean::Item` too to use `hir::Item`. r? `@jyn514`
…=m-ou-se Stabilize str_split_once Closesrust-lang#74773
…tebank Reword labels on E0308 involving async fn return type Fix for rust-lang#80658. When someone writes code like this: ```rust fn foo() -> u8 { async fn async_fn() -> () {} async_fn() } ``` And they try to compile it, they will see an error that looks like this: ```bash error[E0308]: mismatched types --> test.rs:4:5 | 1 | fn foo() -> u8 { | -- expected `u8` because of return type 2 | async fn async_fn() -> () {} | -- checked the `Output` of this `async fn`, found opaque type 3 | 4 | async_fn() | ^^^^^^^^^^ expected `u8`, found opaque type | = note: while checking the return type of this `async fn` = note: expected type `u8` found opaque type `impl Future` ```
Replaced some unwrap_or and map_or with lazy variants Replaced some `unwrap_or` and `map_or` with `unwrap_or_else` and `map_or_else`.
Consider inexpensive inlining criteria first Refactor inlining decisions so that inexpensive criteria are considered first: 1. Based on code generation attributes. 2. Based on MIR availability (examines call graph). 3. Based on MIR body.
Properly account for non-shorthand pattern field in unused variable lint Fixrust-lang#82488
…s, r=nagisa Set codegen thread names Set names on threads spawned during codegen. Various debugging and profiling tools can take advantage of this to show a more useful identifier for threads. For example, gdb will show thread names in `info threads`: ``` (gdb) info threads Id Target Id Frame 1 Thread 0x7fffefa7ec40 (LWP 2905) "rustc" __pthread_clockjoin_ex (threadid=140737214134016, thread_return=0x0, clockid=<optimized out>, abstime=<optimized out>, block=<optimized out>) at pthread_join_common.c:145 2 Thread 0x7fffefa7b700 (LWP 2957) "rustc" 0x00007ffff125eaa8 in llvm::X86_MC::initLLVMToSEHAndCVRegMapping(llvm::MCRegisterInfo*) () from /home/wesley/.rustup/toolchains/stage1/lib/librustc_driver-f866439e29074957.so 3 Thread 0x7fffeef0f700 (LWP 3116) "rustc" futex_wait_cancelable (private=0, expected=0, futex_word=0x7fffe8602ac8) at ../sysdeps/nptl/futex-internal.h:183 * 4 Thread 0x7fffeed0e700 (LWP 3123) "rustc" rustc_codegen_ssa::back::write::spawn_work (cgcx=..., work=...) at /home/wesley/code/rust/rust/compiler/rustc_codegen_ssa/src/back/write.rs:1573 6 Thread 0x7fffe113b700 (LWP 3150) "opt foof.7rcbfp" 0x00007ffff2940e62 in llvm::CallGraph::populateCallGraphNode(llvm::CallGraphNode*) () from /home/wesley/.rustup/toolchains/stage1/lib/librustc_driver-f866439e29074957.so 8 Thread 0x7fffe0d39700 (LWP 3158) "opt foof.7rcbfp" 0x00007fffefe8998e in malloc_consolidate (av=av@entry=0x7ffe2c000020) at malloc.c:4492 9 Thread 0x7fffe0f3a700 (LWP 3162) "opt foof.7rcbfp" 0x00007fffefef27c4 in __libc_open64 (file=0x7fffe0f38608 "foof.foof.7rcbfp3g-cgu.6.rcgu.o", oflag=524865) at ../sysdeps/unix/sysv/linux/open64.c:48 (gdb) ``` and Windows Performance Analyzer will also show this information when profiling: 
…-obk Update measureme dependency to the latest version This version adds the ability to use `rdpmc` hardware-based performance counters instead of wall-clock time for measuring duration. This also introduces a dependency on the `perf-event-open-sys` crate on Linux which is used when using hardware counters. r? `@oli-obk`
rustdoc: add optional woff2 versions of FiraSans. For browsers that support woff2 (most modern ones: https://caniuse.com/woff2), this offers a reduction in download size for these two fonts from 362k to 257k (32% reduction). It decreases the total page size for `struct.String.html` (counting all subresources) by about 2.5%. If this is interesting, I'm happy to apply the same treatment to the other fonts, but these two are the biggest.
GuillaumeGomez
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Feb 26, 2021
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@bors: r+ p=9 |
bors
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Feb 26, 2021
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📌 Commit 65f3751 has been approved by |
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