add -dfaststring-stats to dump some stats about the FastString hash table

[ghc-hetmet.git] / ghc / compiler / main / DynFlags.hs

diff --git a/ghc/compiler/main/DynFlags.hs b/ghc/compiler/main/DynFlags.hs
index 9d279d6..82d3c37 100644 (file)
--- a/ghc/compiler/main/DynFlags.hs
+++ b/ghc/compiler/main/DynFlags.hs
@@ -115,6 +115,7 @@ data DynFlag
    | Opt_D_dump_hi
    | Opt_D_dump_hi_diffs
    | Opt_D_dump_minimal_imports
+   | Opt_D_faststring_stats
    | Opt_DoCoreLinting
    | Opt_DoStgLinting
    | Opt_DoCmmLinting
@@ -899,6 +900,7 @@ dynamic_flags = [
   ,  ( "dcmm-lint",             NoArg (setDynFlag Opt_DoCmmLinting))
   ,  ( "dshow-passes",           NoArg (do unSetDynFlag Opt_RecompChecking
                                           setVerbosity "2") )
+  ,  ( "dfaststring-stats",     NoArg (setDynFlag Opt_D_faststring_stats))
 
        ------ Machine dependant (-m<blah>) stuff ---------------------------