From: Simon Marlow <simonmar@microsoft.com>
Date: Fri, 10 Mar 2006 20:44:49 +0000 (+0000)
Subject: Enable shortcutting of stack squeezing
X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=commitdiff_plain;h=4dfe2a24d9717a809cebc14592212bf3bdf46342

Enable shortcutting of stack squeezing
Not sure why it was disabled, probably by accident.
---

diff --git a/ghc/rts/GC.c b/ghc/rts/GC.c
index 1e40065..4235d3e 100644
--- a/ghc/rts/GC.c
+++ b/ghc/rts/GC.c
@@ -4690,8 +4690,8 @@ end:
     // Should we squeeze or not?  Arbitrary heuristic: we squeeze if
     // the number of words we have to shift down is less than the
     // number of stack words we squeeze away by doing so.
-    if (1 /*RtsFlags.GcFlags.squeezeUpdFrames == rtsTrue &&
-	    weight < words_to_squeeze*/) {
+    if (RtsFlags.GcFlags.squeezeUpdFrames == rtsTrue &&
+	weight < words_to_squeeze) {
 	stackSqueeze(tso, (StgPtr)frame);
     }
 }