diff options
Diffstat (limited to 'compiler/codeGen/StgCmmHeap.hs')
| -rw-r--r-- | compiler/codeGen/StgCmmHeap.hs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/compiler/codeGen/StgCmmHeap.hs b/compiler/codeGen/StgCmmHeap.hs index 4b2bd96b52..6aaa10083e 100644 --- a/compiler/codeGen/StgCmmHeap.hs +++ b/compiler/codeGen/StgCmmHeap.hs @@ -46,6 +46,7 @@ import Id ( Id ) import Module import DynFlags import FastString( mkFastString, fsLit ) +import Panic( sorry ) #if __GLASGOW_HASKELL__ >= 709 import Prelude hiding ((<*>)) @@ -532,8 +533,16 @@ heapCheck checkStack checkYield do_gc code -- that the conditionals on hpHw don't cause a black hole do { dflags <- getDynFlags ; let mb_alloc_bytes + | hpHw > mBLOCK_SIZE = sorry $ unlines + [" Trying to allocate more than "++show mBLOCK_SIZE++" bytes.", + "", + "This is currently not possible due to a limitation of GHC's code generator.", + "See http://hackage.haskell.org/trac/ghc/ticket/4505 for details.", + "Suggestion: read data from a file instead of having large static data", + "structures in code."] | hpHw > 0 = Just (mkIntExpr dflags (hpHw * (wORD_SIZE dflags))) | otherwise = Nothing + where mBLOCK_SIZE = bLOCKS_PER_MBLOCK dflags * bLOCK_SIZE_W dflags stk_hwm | checkStack = Just (CmmLit CmmHighStackMark) | otherwise = Nothing ; codeOnly $ do_checks stk_hwm checkYield mb_alloc_bytes do_gc |