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Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC

Commits:

0fd6d8e4

by Cheng Shao at 2025-12-23T16:14:05-05:00

hadrian: pass -keep-tmp-files to test ghc when --keep-test-files is enabled

This patch makes hadrian pass `-keep-tmp-files` to test ghc when
`--keep-test-files` is enabled, so you can check the ghc intermediate
files when debugging certain test failures. Closes #26688.

1 changed file:

hadrian/src/Settings/Builders/RunTest.hs

Changes:

hadrian/src/Settings/Builders/RunTest.hs

@@ -47,12 +47,20 @@ runTestGhcFlags = do
                             then "-optc-fno-builtin"
                             else ""
 +    -- Also pass -keep-tmp-files to GHC when --keep-test-files is
 +    -- passed to hadrian for debugging purpose (#26688)
 +    keepFiles <- testKeepFiles <$> userSetting defaultTestArgs
 +    let keepTmpFilesFlag
 +          | keepFiles = "-keep-tmp-files"
 +          | otherwise = ""
++
      -- Take flags to send to the Haskell compiler from test.mk.
      -- See: https://github.com/ghc/ghc/blob/master/testsuite/mk/test.mk#L37
      unwords <$> sequence
          [ pure " -dcore-lint -dstg-lint -dcmm-lint -no-user-package-db -fno-dump-with-ways -fprint-error-index-links=never -rtsopts"
          , pure ghcOpts
          , pure ghcExtraFlags
 +        , pure keepTmpFilesFlag
          , ifMinGhcVer "711" "-fno-warn-missed-specialisations"
          , ifMinGhcVer "711" "-fshow-warning-groups"
          , ifMinGhcVer "801" "-fdiagnostics-color=never"