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| author | Eric Christopher <echristo@apple.com> | 2009-12-01 22:28:41 +0000 |
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| committer | Eric Christopher <echristo@apple.com> | 2009-12-01 22:28:41 +0000 |
| commit | 0e97e799d7e9ca7a3e34cba23a5f7dfd787d2ce2 (patch) | |
| tree | 87f854d113ea1900b74280a2d2bcfac51d550927 /docs | |
| parent | 9836a26da3acc15deec878cd6ba21a6b5f2e753b (diff) | |
| download | external_llvm-0e97e799d7e9ca7a3e34cba23a5f7dfd787d2ce2.zip external_llvm-0e97e799d7e9ca7a3e34cba23a5f7dfd787d2ce2.tar.gz external_llvm-0e97e799d7e9ca7a3e34cba23a5f7dfd787d2ce2.tar.bz2 | |
Update per Bill's comments. Work in progress.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90271 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/LangRef.html | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/docs/LangRef.html b/docs/LangRef.html index 5eeea64..691e341 100644 --- a/docs/LangRef.html +++ b/docs/LangRef.html @@ -7263,22 +7263,22 @@ LLVM</a>.</p> <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> |