Bug 20374 – Assertion failure: 'e && retregs' hit at cod1.d:1858 on Win32_64 auto-tester with phobos PR#7259

The following PR: https://github.com/dlang/phobos/pull/7259 (commit 6912e8c2) fails on the Win32_64 auto-tester with the following backend assertion: Assertion failure: 'e && retregs' on line 1858 in file 'C:\cygwin\home\braddr\sandbox\at-client\pull-3829490-Win_32_64\dmd\src\dmd\backend\cod1.d' You can view the full build log here: https://auto-tester.puremagic.com/show-run.ghtml?projectid=1&runid=3829490&isPull=true My guess is that use of std.array.staticArray is what triggered the assertion failure, but I haven't tried to reduce the bug yet.

Slightly reduced test case: ------------------------------------- import std.array : staticArray; @nogc void main() { auto arr = ["foo"].staticArray; } ------------------------------------- Compiled with DMD32 D Compiler v2.090.0-dirty: dmd -m64 test.d Assertion failure: 'e && retregs' on line 1862 in file 'C:\Users\vagrant\clones\dmd\src\dmd\backend\cod1.d'

Without Phobos: void main() @nogc { auto arr = ["foo"].staticArray; } string[1] staticArray(string[1] a) @nogc { return a; }

Closing because the assertion failure does not occur with current master