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authorIan Lynagh <igloo@earth.li>2009-04-04 00:34:45 +0000
committerIan Lynagh <igloo@earth.li>2009-04-04 00:34:45 +0000
commit20612276a81bc12ab6ed752f6c3ec19b4b57c8aa (patch)
tree92eb1eaf99bf082783bf29c66d50f7d8f2cd00c0 /rts
parent174dccda5a8213f9a777ddf5230effef6b5f464d (diff)
downloadhaskell-20612276a81bc12ab6ed752f6c3ec19b4b57c8aa.tar.gz
Don't use thread local storage on x86/not-Linux
With the On x86, use thread-local storage instead of stealing a reg for gct patch, on Windows and OS X: error: thread-local storage not supported for this target
Diffstat (limited to 'rts')
-rw-r--r--rts/sm/GCThread.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/rts/sm/GCThread.h b/rts/sm/GCThread.h
index 5646eddb51..a274bb21bb 100644
--- a/rts/sm/GCThread.h
+++ b/rts/sm/GCThread.h
@@ -209,11 +209,11 @@ extern gc_thread **gc_threads;
#define SET_GCT(to) gct = (to)
-#if defined(sparc_HOST_ARCH) || defined(i386_HOST_ARCH)
+#if defined(sparc_HOST_ARCH) || (defined(i386_HOST_ARCH) && defined(linux_HOST_OS))
// Don't use REG_base or R1 for gct on SPARC because they're getting clobbered
// by something else. Not sure what yet. -- BL 2009/01/03
-// Using __thread is better than stealing a register on x86, because
+// Using __thread is better than stealing a register on x86/Linux, because
// we have too few registers available. In my tests it was worth
// about 5% in GC performance, but of course that might change as gcc
// improves. -- SDM 2009/04/03