From: simonm <unknown>
Date: Mon, 2 Dec 1996 15:31:38 +0000 (+0000)
Subject: [project @ 1996-12-02 15:31:38 by simonm]
X-Git-Tag: Approximately_1000_patches_recorded~876
X-Git-Url: http://git.megacz.com/?a=commitdiff_plain;h=476eadf9c60165863cfb3c926049ed558136a49e;p=ghc-hetmet.git

[project @ 1996-12-02 15:31:38 by simonm]
don't set the info ptr when entering a closure; this is unnecessary as
the info ptr is loaded in the constructor entry code (see comment by
me in CgConTbls.lhs).  Very minor performance hit for Sparc/Alpha, big
win for i386.

Should probably be conditionalised on the architecture or something.
---

diff --git a/ghc/compiler/codeGen/CgTailCall.lhs b/ghc/compiler/codeGen/CgTailCall.lhs
index 95055d8..702f647 100644
--- a/ghc/compiler/codeGen/CgTailCall.lhs
+++ b/ghc/compiler/codeGen/CgTailCall.lhs
@@ -334,10 +334,7 @@ tailCallBusiness fun fun_amode lf_info arg_amodes live_vars pending_assts
 		([],
 		     mkAbstractCs [
 			CCallProfCtrMacro SLIT("ENT_VIA_NODE") [],
-			CAssign (CReg infoptr)
-
-				(CMacroExpr DataPtrRep INFO_PTR [CReg node]),
-			CJump (CMacroExpr CodePtrRep ENTRY_CODE [CReg infoptr])
+			CJump (CMacroExpr CodePtrKind ENTRY_CODE [(CMacroExpr DataPtrKind INFO_PTR [CReg node])])
 		     ])
 	      StdEntry lbl Nothing	  -> ([], CJump (CLbl lbl CodePtrRep))
 	      StdEntry lbl (Just itbl)	  -> ([], CAssign (CReg infoptr) (CLbl itbl DataPtrRep)