X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FcodeGen%2FCgHeapery.lhs;fp=compiler%2FcodeGen%2FCgHeapery.lhs;h=b89452e1deca3807d156b38737cb8153045a9bf5;hb=6015a94f9108a502150565577b66c23650796639;hp=3bba211aa19aa06ee3049b2c240d1a9e44c5c5c2;hpb=04d444716b2e5415fb8f13771e49f1192ef8c8f8;p=ghc-hetmet.git

diff --git a/compiler/codeGen/CgHeapery.lhs b/compiler/codeGen/CgHeapery.lhs
index 3bba211..b89452e 100644
--- a/compiler/codeGen/CgHeapery.lhs
+++ b/compiler/codeGen/CgHeapery.lhs
@@ -288,6 +288,9 @@ hpStkCheck cl_info is_fun reg_save_code code
 	= noStmts
 	| otherwise
 	= oneStmt (CmmAssign nodeReg (CmmLit (CmmLabel closure_lbl)))
+        -- Strictly speaking, we should tag node here.  But if
+        -- node doesn't point to the closure, the code for the closure
+        -- cannot depend on the value of R1 anyway, so we're safe.
     closure_lbl = closureLabelFromCI cl_info
 
     full_save_code = node_asst `plusStmts` reg_save_code