Auto merge of #110598 - matthiaskrgr:rollup-0ybd9i3, r=matthiaskrgr

Rollup of 5 pull requests

Successful merges:

 - #110240 (Add `indent_style = tab` for `Makefile`s to `.editorconfig`)
 - #110545 (Add `GenericArgKind::as_{type,const,region}`)
 - #110574 ( fix out-of-date comment about rpath in bootstrap)
 - #110581 (Style fix for loongarch-linux.md)
 - #110584 (Allow overwriting the sysroot compile flag in compile tests)

Failed merges:

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

3 files changed, 9 insertions, 4 deletions

diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs
index 3d3f991bffa..0d2d512b4b2 100644
--- a/src/bootstrap/builder.rs
+++ b/src/bootstrap/builder.rs
@@ -1589,8 +1589,8 @@ impl<'a> Builder<'a> {
         // which adds to the runtime dynamic loader path when looking for
         // dynamic libraries. We use this by default on Unix platforms to ensure
         // that our nightlies behave the same on Windows, that is they work out
-        // of the box. This can be disabled, of course, but basically that's why
-        // we're gated on RUSTC_RPATH here.
+        // of the box. This can be disabled by setting `rpath = false` in `[rust]`
+        // table of `config.toml`
         //
         // Ok, so the astute might be wondering "why isn't `-C rpath` used
         // here?" and that is indeed a good question to ask. This codegen
diff --git a/src/doc/rustc/src/platform-support/loongarch-linux.md b/src/doc/rustc/src/platform-support/loongarch-linux.md
index d7d31d8724c..16ccaf46b2f 100644
--- a/src/doc/rustc/src/platform-support/loongarch-linux.md
+++ b/src/doc/rustc/src/platform-support/loongarch-linux.md
@@ -15,6 +15,8 @@ While the integer base ABI is implied by the machine field, the floating po
 |          f32           | The base ABI uses 32-bit FPRs for parameter passing. (lp64f)|
 |          sf            | The base ABI uses no FPR for parameter passing. (lp64s)     |
 
+<br>
+
 |`ABI type(Base ABI/ABI extension)`| `C library` | `kernel` |          `target tuple`          |
 |----------------------------------|-------------|----------|----------------------------------|
 |           lp64d/base             |   glibc     |  linux   | loongarch64-unknown-linux-gnu |
diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs
index 1a4e9b58383..0c17ae79808 100644
--- a/src/tools/compiletest/src/runtest.rs
+++ b/src/tools/compiletest/src/runtest.rs
@@ -1900,8 +1900,11 @@ impl<'test> TestCx<'test> {
         // Use a single thread for efficiency and a deterministic error message order
         rustc.arg("-Zthreads=1");
 
-        // In stage 0, make sure we use `stage0-sysroot` instead of the bootstrap sysroot.
-        rustc.arg("--sysroot").arg(&self.config.sysroot_base);
+        // Optionally prevent default --sysroot if specified in test compile-flags.
+        if !self.props.compile_flags.iter().any(|flag| flag.starts_with("--sysroot")) {
+            // In stage 0, make sure we use `stage0-sysroot` instead of the bootstrap sysroot.
+            rustc.arg("--sysroot").arg(&self.config.sysroot_base);
+        }
 
         // Optionally prevent default --target if specified in test compile-flags.
         let custom_target = self.props.compile_flags.iter().any(|x| x.starts_with("--target"));