<html>
<head>
<style><!--
.hmmessage P
{
margin:0px;
padding:0px
}
body.hmmessage
{
font-size: 10pt;
font-family:Verdana
}
--></style>
</head>
<body class='hmmessage'>
yes, but I think it is target-specific. IA64 would use 16 bytes.<BR>
It isn't even in library code, but generated code.<BR>
<BR>
- Jay<BR><BR> <BR>
<HR id=stopSpelling>
From: hosking@cs.purdue.edu<BR>Date: Wed, 27 Jan 2010 10:57:09 -0500<BR>To: jay.krell@cornell.edu<BR>CC: m3devel@elegosoft.com<BR>Subject: Re: [M3devel] aligned_procedures: suggest "closure_marker_size"<BR><BR><BASE>If we declare it as a 32-bit subrange it should just work, right?
<DIV><BR>
<DIV><SPAN style="TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: 12px Helvetica; WHITE-SPACE: normal; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px" class=ecxApple-style-span><SPAN style="TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: 12px Helvetica; WHITE-SPACE: normal; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px" class=ecxApple-style-span>
<DIV style="WORD-WRAP: break-word"><SPAN style="TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: 12px Helvetica; WHITE-SPACE: normal; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px" class=ecxApple-style-span><SPAN style="TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: 12px Helvetica; WHITE-SPACE: normal; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px" class=ecxApple-style-span><SPAN style="TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: 12px Helvetica; WHITE-SPACE: normal; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px" class=ecxApple-style-span><SPAN style="TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: 12px Helvetica; WHITE-SPACE: normal; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px" class=ecxApple-style-span><SPAN style="TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: 12px Helvetica; WHITE-SPACE: normal; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px" class=ecxApple-style-span><SPAN style="TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: 12px Helvetica; WHITE-SPACE: normal; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px" class=ecxApple-style-span><SPAN style="TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: 12px Helvetica; WHITE-SPACE: normal; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px" class=ecxApple-style-span><SPAN style="TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: 12px Helvetica; WHITE-SPACE: normal; LETTER-SPACING: normal; COLOR: rgb(0,0,0); WORD-SPACING: 0px" class=ecxApple-style-span>
<DIV><FONT class=ecxApple-style-span color=#0000ff><FONT class=ecxApple-style-span face="Gill Sans"><SPAN style="FONT-FAMILY: 'Gill Sans'; COLOR: rgb(0,0,255)" class=ecxApple-style-span><SPAN style="FONT-FAMILY: 'Gill Sans'; COLOR: rgb(0,0,255)" class=ecxApple-style-span>Antony Hosking</SPAN></SPAN></FONT></FONT><FONT class=ecxApple-style-span face="Gill Sans"><SPAN style="FONT-FAMILY: 'Gill Sans'" class=ecxApple-style-span><SPAN style="FONT-FAMILY: 'Gill Sans'" class=ecxApple-style-span><SPAN class=ecxApple-converted-space> </SPAN>|<SPAN class=ecxApple-converted-space> </SPAN></SPAN></SPAN><SPAN style="FONT-FAMILY: 'Gill Sans'" class=ecxApple-style-span><SPAN style="FONT-FAMILY: 'Gill Sans'" class=ecxApple-style-span>Associate Professor</SPAN></SPAN><SPAN style="FONT-FAMILY: 'Gill Sans'" class=ecxApple-style-span><SPAN style="FONT-FAMILY: 'Gill Sans'" class=ecxApple-style-span> | Computer Science | Purdue University</SPAN></SPAN></FONT></DIV>
<DIV><FONT class=ecxApple-style-span face=GillSans-Light><SPAN style="FONT-FAMILY: GillSans-Light" class=ecxApple-style-span>305 N. University Street | West Lafayette | IN 47907 | USA</SPAN></FONT></DIV>
<DIV><FONT class=ecxApple-style-span color=#0000ff face="Gill Sans"><SPAN style="FONT-FAMILY: 'Gill Sans'; COLOR: rgb(0,0,255)" class=ecxApple-style-span><SPAN style="FONT-FAMILY: 'Gill Sans'; COLOR: rgb(0,0,255)" class=ecxApple-style-span>Office</SPAN></SPAN></FONT><FONT class=ecxApple-style-span face=GillSans-Light><SPAN style="FONT-FAMILY: GillSans-Light" class=ecxApple-style-span><SPAN style="FONT-FAMILY: GillSans-Light" class=ecxApple-style-span> +1 765 494 6001 |<SPAN class=ecxApple-converted-space> </SPAN></SPAN></SPAN></FONT><FONT class=ecxApple-style-span color=#0000ff face="Gill Sans"><SPAN style="FONT-FAMILY: 'Gill Sans'; COLOR: rgb(0,0,255)" class=ecxApple-style-span><SPAN style="FONT-FAMILY: 'Gill Sans'; COLOR: rgb(0,0,255)" class=ecxApple-style-span>Mobile</SPAN></SPAN></FONT><FONT class=ecxApple-style-span face=GillSans-Light><SPAN style="FONT-FAMILY: GillSans-Light" class=ecxApple-style-span><SPAN style="FONT-FAMILY: GillSans-Light" class=ecxApple-style-span><SPAN class=ecxApple-converted-space> </SPAN>+1 765 427 5484</SPAN></SPAN></FONT></DIV>
<DIV><FONT class=ecxApple-style-span face=GillSans-Light><BR class=ecxkhtml-block-placeholder></FONT></DIV></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN><BR class=ecxApple-interchange-newline></SPAN></DIV></SPAN></SPAN><BR class=ecxApple-interchange-newline></DIV><BR>
<DIV>
<DIV>On 27 Jan 2010, at 09:01, Jay K wrote:</DIV><BR class=ecxApple-interchange-newline>
<BLOCKQUOTE><SPAN style="TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: medium Helvetica; WHITE-SPACE: normal; LETTER-SPACING: normal; WORD-SPACING: 0px" class=ecxApple-style-span>
<DIV style="FONT-FAMILY: Verdana; FONT-SIZE: 10pt" class=ecxhmmessage>MIPS64, SPARC64 and maybe others could probably all benefit slightly from<BR> the closure marker being a 4 byte -1 instead of an INTEGER.<BR> <BR> <BR> That is: 64bit architectures with a fixed size 4 byte instruction where alignment is checked<BR><BR> <BR> That is, we should probably make their be a per-target variable "closure marker size"<BR> that is 4 for all current targets (IA64 should probably be 16 though),<BR> though one would have to look into the various instruction encodings.<BR><BR><BR> - Jay<BR></DIV></SPAN></BLOCKQUOTE></DIV><BR></DIV> </body>
</html>