Bug 20890 – parameter corruption when other parameter is a static array of length 1

example must run without assertion failure --- void format(string spec, S[1] s) { assert(spec.length); } struct S {} void main() { S[1] s; format("lengthy", s); } --- this is a DMD backend regression caused by https://github.com/dlang/dmd/pull/9357. full bisection report: > digger: Clearing temporary cache > digger: ---------------------- Running test command... ----------------------- > digger: ------------- Test command exited with status -11 (BAD). ------------- > digger: Finding shortest path between 054b8cd7b68d32ac134e52c1e8cfb54210b6484e > and 27c7650e74799e0f796116f9cc734c365ab3ecf0... > digger: 0 commits (about 0 tests) remaining. > digger: 27c7650e74799e0f796116f9cc734c365ab3ecf0 is the first bad commit > commit 27c7650e74799e0f796116f9cc734c365ab3ecf0 > Author: Sebastian Wilzbach <[email protected]> > Date: Thu Feb 14 00:01:34 2019 +0100 > > dmd: Merge pull request #9357 from WalterBright/fix19672 > > https://github.com/dlang/dmd/pull/9357 > > fix Issue 19672 - Function uses the stack to read a static array para… > > diff --git a/dmd b/dmd > index 73fcf82ae..c2c6b4b6e 160000 > --- a/dmd > +++ b/dmd > @@ -1 +1 @@ > -Subproject commit 73fcf82ae1d6f0582c19e8c2ae0d09f319745521 > +Subproject commit c2c6b4b6eaa4f80db2292f8c2ecf2cd250367e72 > digger: Bisection completed successfully.

@NilsLankila created dlang/dmd pull request #11207 "fix issue 20890 - parameter corruption when other parameter is a stat…" fixing this issue: - fix issue 20890 - parameter corruption when other parameter is a static array of length 1 https://github.com/dlang/dmd/pull/11207

dlang/dmd pull request #11207 "fix issue 20890 - parameter corruption when other parameter is a stat…" was merged into stable: - 5a597997bd4d6194320f05be93754321dc05fdf9 by Nils Lankila: fix issue 20890 - parameter corruption when other parameter is a static array of length 1 https://github.com/dlang/dmd/pull/11207