X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2FRetainerProfile.c;h=07a3db435b5847a7dda97627a263422bf6175ea8;hb=302e2e29f2e1074bfba561e077a484dc4e1d15f6;hp=ba4d1465c8c4184602bf219427dd3871e86c7f87;hpb=adf339b2f7fefe396ab5e78206c263830c9702f7;p=ghc-hetmet.git

diff --git a/rts/RetainerProfile.c b/rts/RetainerProfile.c
index ba4d146..07a3db4 100644
--- a/rts/RetainerProfile.c
+++ b/rts/RetainerProfile.c
@@ -453,8 +453,6 @@ push( StgClosure *c, retainer c_child_r, StgClosure **first_child )
 	// no child, no SRT
     case CONSTR_0_1:
     case CONSTR_0_2:
-    case CAF_BLACKHOLE:
-    case BLACKHOLE:
     case ARR_WORDS:
 	*first_child = NULL;
 	return;
@@ -468,8 +466,7 @@ push( StgClosure *c, retainer c_child_r, StgClosure **first_child )
 	*first_child = ((StgSelector *)c)->selectee;
 	return;
     case IND_PERM:
-    case IND_OLDGEN_PERM:
-    case IND_OLDGEN:
+    case BLACKHOLE:
 	*first_child = ((StgInd *)c)->indirectee;
 	return;
     case CONSTR_1_0:
@@ -916,16 +913,12 @@ pop( StgClosure **c, StgClosure **cp, retainer *r )
 	    // no child (fixed), no SRT
 	case CONSTR_0_1:
 	case CONSTR_0_2:
-	case CAF_BLACKHOLE:
-	case BLACKHOLE:
 	case ARR_WORDS:
 	    // one child (fixed), no SRT
 	case MUT_VAR_CLEAN:
 	case MUT_VAR_DIRTY:
 	case THUNK_SELECTOR:
 	case IND_PERM:
-	case IND_OLDGEN_PERM:
-	case IND_OLDGEN:
 	case CONSTR_1_1:
 	    // cannot appear
 	case PAP:
@@ -1059,13 +1052,13 @@ isRetainer( StgClosure *c )
     case FUN_0_2:
 	// partial applications
     case PAP:
-	// blackholes
-    case CAF_BLACKHOLE:
-    case BLACKHOLE:
 	// indirection
     case IND_PERM:
-    case IND_OLDGEN_PERM:
-    case IND_OLDGEN:
+    // IND_STATIC used to be an error, but at the moment it can happen
+    // as isAlive doesn't look through IND_STATIC as it ignores static
+    // closures. See trac #3956 for a program that hit this error.
+    case IND_STATIC:
+    case BLACKHOLE:
 	// static objects
     case CONSTR_STATIC:
     case FUN_STATIC:
@@ -1080,8 +1073,6 @@ isRetainer( StgClosure *c )
 	//
 	// Error case
 	//
-	// IND_STATIC cannot be *c, *cp, *r in the retainer profiling loop.
-    case IND_STATIC:
 	// CONSTR_NOCAF_STATIC
 	// cannot be *c, *cp, *r in the retainer profiling loop.
     case CONSTR_NOCAF_STATIC: