X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FcodeGen%2FCgForeignCall.hs;h=957651d3bae8567b6438eceb65df9ace8fd17c48;hb=81b5698d13d6c4b99ad85dfc2c0fdfafd7a469dd;hp=cf99f316c3e9ddd67aa81514dc7ac6fd82d3c2bf;hpb=497302c44ad08c6c27d0e15d94a787f332c0cfec;p=ghc-hetmet.git

diff --git a/compiler/codeGen/CgForeignCall.hs b/compiler/codeGen/CgForeignCall.hs
index cf99f31..957651d 100644
--- a/compiler/codeGen/CgForeignCall.hs
+++ b/compiler/codeGen/CgForeignCall.hs
@@ -94,9 +94,6 @@ emitForeignCall results (CCall (CCallSpec target cconv safety)) args live
 	-- ToDo: this might not be correct for 64-bit API
       arg_size rep = max (widthInBytes (typeWidth rep)) wORD_SIZE
 
-emitForeignCall _ (DNCall _) _ _
-  = panic "emitForeignCall: DNCall"
-
 
 -- alternative entry point, used by CmmParse
 emitForeignCall'
@@ -212,7 +209,11 @@ emitLoadThreadState = do
 	                      bWord),
 	-- SpLim = tso->stack + RESERVED_STACK_WORDS;
 	CmmAssign spLim (cmmOffsetW (cmmOffset (CmmReg (CmmLocal tso)) tso_STACK)
-			            rESERVED_STACK_WORDS)
+			            rESERVED_STACK_WORDS),
+        -- HpAlloc = 0;
+        --   HpAlloc is assumed to be set to non-zero only by a failed
+        --   a heap check, see HeapStackCheck.cmm:GC_GENERIC
+        CmmAssign hpAlloc (CmmLit zeroCLit)
     ]
   emitOpenNursery
   -- and load the current cost centre stack from the TSO when profiling:
@@ -267,13 +268,14 @@ stgHp		  = CmmReg hp
 stgCurrentTSO	  = CmmReg currentTSO
 stgCurrentNursery = CmmReg currentNursery
 
-sp, spLim, hp, hpLim, currentTSO, currentNursery :: CmmReg
+sp, spLim, hp, hpLim, currentTSO, currentNursery, hpAlloc :: CmmReg
 sp		  = CmmGlobal Sp
 spLim		  = CmmGlobal SpLim
 hp		  = CmmGlobal Hp
 hpLim		  = CmmGlobal HpLim
 currentTSO	  = CmmGlobal CurrentTSO
 currentNursery 	  = CmmGlobal CurrentNursery
+hpAlloc 	  = CmmGlobal HpAlloc
 
 -- -----------------------------------------------------------------------------
 -- For certain types passed to foreign calls, we adjust the actual