Auto merge of #125732 - matthiaskrgr:rollup-bozbtk3, r=matthiaskrgr

Rollup of 7 pull requests

Successful merges:

 - #124655 (Add `-Zfixed-x18`)
 - #125693 (Format all source files in `tests/coverage/`)
 - #125700 (coverage: Avoid overflow when the MC/DC condition limit is exceeded)
 - #125705 (Reintroduce name resolution check for trying to access locals from an inline const)
 - #125708 (tier 3 target policy: clarify the point about producing assembly)
 - #125715 (remove unneeded extern crate in rmake test)
 - #125719 (Extract coverage-specific code out of `compiletest::runtest`)

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

1 files changed, 2 insertions, 1 deletions

diff --git a/src/doc/rustc/src/target-tier-policy.md b/src/doc/rustc/src/target-tier-policy.md
index 48b58f6f06a..e9cf2a0d1ae 100644
--- a/src/doc/rustc/src/target-tier-policy.md
+++ b/src/doc/rustc/src/target-tier-policy.md
@@ -247,7 +247,8 @@ approved by the appropriate team for that shared code before acceptance.
     target may not have; use conditional compilation or runtime detection, as
     appropriate, to let each target run code supported by that target.
 - Tier 3 targets must be able to produce assembly using at least one of
-  rustc's supported backends from any host target.
+  rustc's supported backends from any host target. (Having support in a fork
+  of the backend is not sufficient, it must be upstream.)
 
 If a tier 3 target stops meeting these requirements, or the target maintainers
 no longer have interest or time, or the target shows no signs of activity and