Testsuite using stage=1 compiler
I sometimes do
in the testsuite directory. Usually because I've broken GHC and the stage-2 compiler won't build. Rather than debug GHC itself I want to run the testsuite to see if I can expose the bug in a smaller program.
I can do this, but the failures I'm looking for are concealed in a cloud of failures from tests that simply can't be run with stage-1. Notably Template Haskell.
It'd be great if
- I could flag tests in
all.Tas "stage 2 only"
- The testsuite runner would skip such tests when stage=1
Can't be hard! We don't need to modify all the all.T files immediately.