Auto merge of #133659 - jieyouxu:rollup-576gh4p, r=jieyouxu

Rollup of 6 pull requests

Successful merges:

 - #131551 (Support input/output in vector registers of PowerPC inline assembly)
 - #132515 (Fix and undeprecate home_dir())
 - #132721 (CI: split x86_64-mingw job)
 - #133106 (changes old intrinsic declaration to new declaration)
 - #133496 (thread::available_parallelism for wasm32-wasip1-threads)
 - #133548 (Add `BTreeSet` entry APIs to match `HashSet`)

r? `@ghost`
`@rustbot` modify labels: rollup

4 files changed, 24 insertions, 9 deletions

diff --git a/src/bootstrap/mk/Makefile.in b/src/bootstrap/mk/Makefile.in
index 92c8f5dc452..a1f38b9ac14 100644
--- a/src/bootstrap/mk/Makefile.in
+++ b/src/bootstrap/mk/Makefile.in
@@ -108,11 +108,13 @@ ci-msvc: ci-msvc-py ci-msvc-ps1
 
 ## MingW native builders
 
-# test both x and bootstrap entrypoints
+# Set of tests that should represent half of the time of the test suite.
+# Used to split tests across multiple CI runners.
+# Test both x and bootstrap entrypoints.
 ci-mingw-x:
-	$(Q)$(CFG_SRC_DIR)/x test --stage 2 tidy
+	$(Q)$(CFG_SRC_DIR)/x test --stage 2 --skip=compiler --skip=src
 ci-mingw-bootstrap:
-	$(Q)$(BOOTSTRAP) test --stage 2 --skip tidy
+	$(Q)$(BOOTSTRAP) test --stage 2 --skip=tests --skip=coverage-map --skip=coverage-run --skip=library --skip=tidyselftest
 ci-mingw: ci-mingw-x ci-mingw-bootstrap
 
 .PHONY: dist
diff --git a/src/ci/github-actions/jobs.yml b/src/ci/github-actions/jobs.yml
index 2f59892acf6..454c855c75d 100644
--- a/src/ci/github-actions/jobs.yml
+++ b/src/ci/github-actions/jobs.yml
@@ -439,14 +439,24 @@ auto:
       NO_DOWNLOAD_CI_LLVM: 1
     <<: *job-windows-8c
 
-  - image: x86_64-mingw
+  # x86_64-mingw is split into two jobs to run tests in parallel.
+  - image: x86_64-mingw-1
     env:
-      SCRIPT: make ci-mingw
+      SCRIPT: make ci-mingw-x
       RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-gnu
       # We are intentionally allowing an old toolchain on this builder (and that's
       # incompatible with LLVM downloads today).
       NO_DOWNLOAD_CI_LLVM: 1
-    <<: *job-windows-8c
+    <<: *job-windows
+
+  - image: x86_64-mingw-2
+    env:
+      SCRIPT: make ci-mingw-bootstrap
+      RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-gnu
+      # We are intentionally allowing an old toolchain on this builder (and that's
+      # incompatible with LLVM downloads today).
+      NO_DOWNLOAD_CI_LLVM: 1
+    <<: *job-windows
 
   - image: dist-x86_64-msvc
     env:
diff --git a/src/ci/shared.sh b/src/ci/shared.sh
index 1e6a008a5de..9fce68947f4 100644
--- a/src/ci/shared.sh
+++ b/src/ci/shared.sh
@@ -53,7 +53,8 @@ function isLinux {
 }
 
 function isKnownToBeMingwBuild {
-    isGitHubActions && [[ "${CI_JOB_NAME}" == *mingw ]]
+    # CI_JOB_NAME must end with "mingw" and optionally `-N` to be considered a MinGW build.
+    isGitHubActions && [[ "${CI_JOB_NAME}" =~ mingw(-[0-9]+)?$ ]]
 }
 
 function isCiBranch {
diff --git a/src/doc/unstable-book/src/language-features/asm-experimental-arch.md b/src/doc/unstable-book/src/language-features/asm-experimental-arch.md
index 12a73f0508b..c2f4170d7d2 100644
--- a/src/doc/unstable-book/src/language-features/asm-experimental-arch.md
+++ b/src/doc/unstable-book/src/language-features/asm-experimental-arch.md
@@ -34,7 +34,7 @@ This feature tracks `asm!` and `global_asm!` support for the following architect
 | PowerPC      | `reg`          | `r0`, `r[3-12]`, `r[14-28]`        | `r`                  |
 | PowerPC      | `reg_nonzero`  | `r[3-12]`, `r[14-28]`              | `b`                  |
 | PowerPC      | `freg`         | `f[0-31]`                          | `f`                  |
-| PowerPC      | `vreg`         | `v[0-31]`                          | Only clobbers        |
+| PowerPC      | `vreg`         | `v[0-31]`                          | `v`                  |
 | PowerPC      | `cr`           | `cr[0-7]`, `cr`                    | Only clobbers        |
 | PowerPC      | `xer`          | `xer`                              | Only clobbers        |
 | wasm32       | `local`        | None\*                             | `r`                  |
@@ -75,7 +75,8 @@ This feature tracks `asm!` and `global_asm!` support for the following architect
 | PowerPC      | `reg`                           | None           | `i8`, `i16`, `i32`, `i64` (powerpc64 only) |
 | PowerPC      | `reg_nonzero`                   | None           | `i8`, `i16`, `i32`, `i64` (powerpc64 only) |
 | PowerPC      | `freg`                          | None           | `f32`, `f64`                            |
-| PowerPC      | `vreg`                          | N/A            | Only clobbers                           |
+| PowerPC      | `vreg`                          | `altivec`      | `i8x16`, `i16x8`, `i32x4`, `f32x4`      |
+| PowerPC      | `vreg`                          | `vsx`          | `f32`, `f64`, `i64x2`, `f64x2`          |
 | PowerPC      | `cr`                            | N/A            | Only clobbers                           |
 | PowerPC      | `xer`                           | N/A            | Only clobbers                           |
 | wasm32       | `local`                         | None           | `i8` `i16` `i32` `i64` `f32` `f64`      |
@@ -181,6 +182,7 @@ This feature tracks `asm!` and `global_asm!` support for the following architect
 | PowerPC      | `reg`          | None     | `0`            | None          |
 | PowerPC      | `reg_nonzero`  | None     | `3`            | None          |
 | PowerPC      | `freg`         | None     | `0`            | None          |
+| PowerPC      | `vreg`         | None     | `0`            | None          |
 | SPARC        | `reg`          | None     | `%o0`          | None          |
 | CSKY         | `reg`          | None     | `r0`           | None          |
 | CSKY         | `freg`         | None     | `f0`           | None          |