[llvm-commits] [llvm] r90271 - /llvm/trunk/docs/LangRef.html
Eric Christopher
echristo at apple.com
Tue Dec 1 14:28:42 PST 2009
Author: echristo
Date: Tue Dec 1 16:28:41 2009
New Revision: 90271
URL: http://llvm.org/viewvc/llvm-project?rev=90271&view=rev
Log:
Update per Bill's comments. Work in progress.
Modified:
llvm/trunk/docs/LangRef.html
Modified: llvm/trunk/docs/LangRef.html
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/LangRef.html?rev=90271&r1=90270&r2=90271&view=diff
==============================================================================
--- llvm/trunk/docs/LangRef.html (original)
+++ llvm/trunk/docs/LangRef.html Tue Dec 1 16:28:41 2009
@@ -7263,22 +7263,22 @@
<h5>Overview:</h5>
<p>The <tt>llvm.objectsize</tt> intrinsic returns the constant number of bytes
- from <tt>ptr</tt> to the end of the object <tt>ptr</tt> points to if it
+ from <tt>ptr</tt> to the end of the object <tt>ptr</tt> points to, if it
can deduce this at compile time. If there are any side-effects in evaluating
the argument or it cannot deduce which objects <tt>ptr</tt> points to at compile
- time the intrinsic returns <tt>(size_t) -1</tt> for <tt>type</tt> 0
- or 1 and <tt>(size_t) 0</tt> for <tt>type</tt> 2 or 3.</p>
+ time, the intrinsic returns <tt>i32/i64 -1</tt> for <tt>type</tt> 0
+ or 1 and <tt>i32/i64 0</tt> for <tt>type</tt> 2 or 3.</p>
<h5>Arguments:</h5>
<p>The <tt>llvm.objectsize</tt> intrinsic takes two arguments. The first
- argument is a pointer to the object <tt>ptr</tt> and an integer <tt>type</tt>.
- <tt>type</tt> is an integer ranging from 0 to 3. The lsb corresponds to
- a return value based on whole objects, the second bit whether or not we
- return the maximum or minimum remaining bytes computed.</p>
+ argument is a pointer to the object <tt>ptr</tt>. The second argument
+ is an integer <tt>type</tt> which ranges from 0 to 3. The first bit
+ corresponds to a return value based on whole objects, and the second bit
+ whether or not we return the maximum or minimum remaining bytes computed.</p>
<h5>Semantics:</h5>
<p>The <tt>llvm.objectsize</tt> intrinsic is lowered to either a constant
- representing the size of the object concerned or <tt>(size_t) -1</tt> if
+ representing the size of the object concerned or <tt>i32/i64 -1</tt> if
it cannot be determined at compile time.</p>
</div>
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