llvm dev - Sep 2013 - [LLVMdev] IEEE 754-2008 | ISO/IEC TR 18037

Hi,

Does LLVM support decimal precision numbers supported? Also does it have
Fixed point arithmetic?

S
--
Suminda Sirinath Salpitikorala Dharmasena, B.Sc. Comp. & I.S. (Hon.) Lond.,
P.G.Dip. Ind. Maths. J'Pura, MIEEE, MACM, CEO Sakrīō! ▣ *Address*: 6G • 1st
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LLVM does not support IEEE decimal-floating point.

If by “fixed point arithmetic” you are asking about associating a scale factor
with a variable/value, and doing the correct scaling for arbitrary arithmetic…
LLVM doesn’t do that either.  It’s a rare IR that even has the concept.  The
OpenVMS GEM compilers supported it (along with other special features for
COBOL), but I’m not aware of any others.
--paulr

From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On
Behalf Of Suminda Dharmasena
Sent: Saturday, September 07, 2013 2:02 AM
To: llvmdev at cs.uiuc.edu
Subject: [LLVMdev] IEEE 754-2008 | ISO/IEC TR 18037

Hi,

Does LLVM support decimal precision numbers supported? Also does it have Fixed
point arithmetic?

S
--
Suminda Sirinath Salpitikorala Dharmasena, B.Sc. Comp. & I.S. (Hon.) Lond.,
P.G.Dip. Ind. Maths. J'Pura, MIEEE, MACM, CEO Sakrīō! ▣ Address: 6G • 1st
Lane • Pagoda Road • Nugegoda 10250 • Sri Lanka. ▣ Mobile: +94-(0)711007945 ▣
Tele: +94-(0)11-5 864614 / 5 875614 / 2 825908 ▣ Web: http://www.sakrio.com ▣

This email is subjected to the email Terms of Use and Disclaimer:
http://www.sakrio.com/email-legal. Please read this first.
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Many thanks for getting back.

This will come in handy if you do not have a floating point unit. Also for
speed in some cases.

To be generic as possible it might be good to have this.

BTW, in the doc I was reading there was not mention about Quad size
numbers, decimal numbers and extended precision numbers.
http://llvm.org/docs/LangRef.html#type-system
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