[commit: ghc] master: Revert "rts: Ensure that the_gc_thread is aligned" (e2b5c54)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/e2b5c54f30a31f6b030d29394356fb133b8a0001/ghc

>---------------------------------------------------------------

commit e2b5c54f30a31f6b030d29394356fb133b8a0001
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Wed Aug 8 19:02:03 2018 -0400

    Revert "rts: Ensure that the_gc_thread is aligned"
    
    This caused segmentation faults on Darwin.
    
    This reverts commit c6cc93bca69abc258513af8cf2370b14e70fd8fb.


>---------------------------------------------------------------

e2b5c54f30a31f6b030d29394356fb133b8a0001
 rts/sm/GC.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/rts/sm/GC.c b/rts/sm/GC.c
index 9b31516..742ae36 100644
--- a/rts/sm/GC.c
+++ b/rts/sm/GC.c
@@ -128,11 +128,7 @@ uint32_t mutlist_MUTVARS,
 gc_thread **gc_threads = NULL;
 
 #if !defined(THREADED_RTS)
-/* Use conservative alignment since we will cast this to a gc_thread and
- * consequently the compiler may assume it is aligned. See #15482.
- */
-StgWord8 the_gc_thread[sizeof(gc_thread) + 64 * sizeof(gen_workspace)]
-    __attribute__((aligned(sizeof(W_))));
+StgWord8 the_gc_thread[sizeof(gc_thread) + 64 * sizeof(gen_workspace)];
 #endif
 
 // Number of threads running in *this* GC.  Affects how many