chore: Reduce compile time (#2909)

swc-project · Nov 29, 2021 · 435facc · 435facc · github-actions · Nov 29, 2021
1 parent 586ab0c
commit 435facc
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Showing 2 changed files with 31 additions and 6 deletions.
diff --git a/.cargo/config.toml b/.cargo/config.toml
@@ -8,14 +8,22 @@ rustdocflags = [
 rustflags = [
   "-C",
   "target-feature=+sse2",
+  "-Z",
+  "new-llvm-pass-manager=no",
 ]
 
 [target.aarch64-apple-darwin]
-rustflags = []
+rustflags = [
+  "-Z",
+  "new-llvm-pass-manager=no",
+]
 
 [target.aarch64-unknown-linux-gnu]
 linker = "aarch64-linux-gnu-gcc"
-rustflags = []
+rustflags = [
+  "-Z",
+  "new-llvm-pass-manager=no",
+]
 
 [target.aarch64-unknown-linux-musl]
 linker = "aarch64-linux-musl-gcc"
@@ -24,17 +32,31 @@ rustflags = [
   "target-feature=-crt-static",
   "-C",
   "link-arg=-lgcc",
+  "-Z",
+  "new-llvm-pass-manager=no",
 ]
 
 [target.armv7-unknown-linux-gnueabihf]
 linker = "arm-linux-gnueabihf-gcc"
-rustflags = []
+rustflags = [
+  "-Z",
+  "new-llvm-pass-manager=no",
+]
 
 [target.aarch64-linux-android]
-rustflags = []
+rustflags = [
+  "-Z",
+  "new-llvm-pass-manager=no",
+]
 
 [target.aarch64-pc-windows-msvc]
-rustflags = []
+rustflags = [
+  "-Z",
+  "new-llvm-pass-manager=no",
+]
 
 [target.wasm32-unknown-unknown]
-rustflags = []
+rustflags = [
+  "-Z",
+  "new-llvm-pass-manager=no",
+]
diff --git a/crates/swc_ecma_visit/src/lib.rs b/crates/swc_ecma_visit/src/lib.rs
@@ -147,6 +147,9 @@ where
     }
 }
 
+/// The returned folder only handles `fold_script` and `fold_module`, and
+/// typescript nodes are ignored. So if your visitor needs to handle typescript
+/// or low-level nodes, you should use [as_folder] instead.
 #[inline]
 pub fn as_folder<V>(v: V) -> Folder<V>
 where
Benchmark suite	Current: `435facc`	Previous: `586ab0c`	Ratio
`base_tr_fixer`	`26274` ns/iter (`± 640`)	`27531` ns/iter (`± 3506`)	`0.95`
`base_tr_resolver_and_hygiene`	`154411` ns/iter (`± 40548`)	`146691` ns/iter (`± 23103`)	`1.05`
`codegen_es2015`	`59933` ns/iter (`± 1974`)	`47949` ns/iter (`± 10353`)	`1.25`
`codegen_es2016`	`59829` ns/iter (`± 391`)	`49899` ns/iter (`± 16614`)	`1.20`
`codegen_es2017`	`60035` ns/iter (`± 436`)	`51250` ns/iter (`± 20911`)	`1.17`
`codegen_es2018`	`59936` ns/iter (`± 338`)	`54816` ns/iter (`± 19974`)	`1.09`
`codegen_es2019`	`59919` ns/iter (`± 1273`)	`52231` ns/iter (`± 6928`)	`1.15`
`codegen_es2020`	`59823` ns/iter (`± 3296`)	`51059` ns/iter (`± 7727`)	`1.17`
`codegen_es3`	`59779` ns/iter (`± 2326`)	`50364` ns/iter (`± 14586`)	`1.19`
`codegen_es5`	`60206` ns/iter (`± 1873`)	`51925` ns/iter (`± 11329`)	`1.16`
`full_es2015`	`215125720` ns/iter (`± 6893041`)	`173975022` ns/iter (`± 10588745`)	`1.24`
`full_es2016`	`169657200` ns/iter (`± 9788508`)	`139209004` ns/iter (`± 10958174`)	`1.22`
`full_es2017`	`182698442` ns/iter (`± 14033807`)	`140686063` ns/iter (`± 18962285`)	`1.30`
`full_es2018`	`179534438` ns/iter (`± 20035556`)	`144981008` ns/iter (`± 16370360`)	`1.24`
`full_es2019`	`178807961` ns/iter (`± 12573482`)	`140236426` ns/iter (`± 14235890`)	`1.28`
`full_es2020`	`177334565` ns/iter (`± 14003432`)	`141153350` ns/iter (`± 16556041`)	`1.26`
`full_es3`	`253625730` ns/iter (`± 23043213`)	`202264926` ns/iter (`± 24860507`)	`1.25`
`full_es5`	`234980308` ns/iter (`± 19987185`)	`185969504` ns/iter (`± 16174450`)	`1.26`
`parser`	`786866` ns/iter (`± 59224`)	`647534` ns/iter (`± 131289`)	`1.22`
`ser_ast_node`	`183` ns/iter (`± 4`)	`143` ns/iter (`± 34`)	`1.28`
`ser_serde`	`184` ns/iter (`± 14`)	`144` ns/iter (`± 32`)	`1.28`
`emit_colors`	`21056448` ns/iter (`± 28250847`)	`15307435` ns/iter (`± 20501719`)	`1.38`
`emit_large`	`103312987` ns/iter (`± 160288924`)	`95902559` ns/iter (`± 145852500`)	`1.08`
`base_clone`	`2864744` ns/iter (`± 507771`)	`2243505` ns/iter (`± 159482`)	`1.28`
`fold_span`	`4554653` ns/iter (`± 913582`)	`3813714` ns/iter (`± 392527`)	`1.19`
`fold_span_panic`	`4881840` ns/iter (`± 919107`)	`4058072` ns/iter (`± 408660`)	`1.20`
`visit_mut_span`	`3559787` ns/iter (`± 746024`)	`2742690` ns/iter (`± 419849`)	`1.30`
`visit_mut_span_panic`	`3551256` ns/iter (`± 678979`)	`2776788` ns/iter (`± 247947`)	`1.28`
`ast_clone`	`20462` ns/iter (`± 1195`)	`20087` ns/iter (`± 1533`)	`1.02`
`ast_clone_to_stable`	`59851` ns/iter (`± 4007`)	`62530` ns/iter (`± 11487`)	`0.96`
`ast_clone_to_stable_then_to_unstable`	`108950` ns/iter (`± 11371`)	`105442` ns/iter (`± 19293`)	`1.03`
`json_deserialize`	`2260988` ns/iter (`± 181371`)	`2061640` ns/iter (`± 177277`)	`1.10`
`json_serialize`	`110949` ns/iter (`± 3326`)	`87040` ns/iter (`± 6990`)	`1.27`
`boxing_boxed`	`148` ns/iter (`± 10`)	`142` ns/iter (`± 34`)	`1.04`
`boxing_boxed_clone`	`80` ns/iter (`± 8`)	`62` ns/iter (`± 15`)	`1.29`
`boxing_unboxed`	`130` ns/iter (`± 16`)	`147` ns/iter (`± 28`)	`0.88`
`boxing_unboxed_clone`	`74` ns/iter (`± 9`)	`61` ns/iter (`± 21`)	`1.21`
`time_10`	`385` ns/iter (`± 4`)	`284` ns/iter (`± 52`)	`1.36`
`time_15`	`888` ns/iter (`± 20`)	`603` ns/iter (`± 174`)	`1.47`
`time_20`	`1464` ns/iter (`± 68`)	`1048` ns/iter (`± 143`)	`1.40`
`time_40`	`4837` ns/iter (`± 129`)	`4057` ns/iter (`± 706`)	`1.19`
`time_5`	`125` ns/iter (`± 17`)	`91` ns/iter (`± 20`)	`1.37`
`time_60`	`10231` ns/iter (`± 162`)	`8624` ns/iter (`± 887`)	`1.19`