X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2FRetainerProfile.c;h=07a3db435b5847a7dda97627a263422bf6175ea8;hb=c5b76e6f1d2151dd76a2e6477c543a4dd1efca46;hp=d14ba06bf6ab0fc6b6c7077673ee2daf3779fc13;hpb=70a2431f90fa932733ce015714ef7848640ed48f;p=ghc-hetmet.git

diff --git a/rts/RetainerProfile.c b/rts/RetainerProfile.c
index d14ba06..07a3db4 100644
--- a/rts/RetainerProfile.c
+++ b/rts/RetainerProfile.c
@@ -1054,6 +1054,10 @@ isRetainer( StgClosure *c )
     case PAP:
 	// indirection
     case IND_PERM:
+    // 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:
@@ -1069,8 +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: