diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/BitCodeFormat.html | 7 | ||||
| -rw-r--r-- | docs/LangRef.html | 13 |
2 files changed, 18 insertions, 2 deletions
diff --git a/docs/BitCodeFormat.html b/docs/BitCodeFormat.html index d8ddc2b6b2..0b8747c261 100644 --- a/docs/BitCodeFormat.html +++ b/docs/BitCodeFormat.html @@ -922,6 +922,9 @@ encoding of the visibility of this variable: <li><i>threadlocal</i>: If present and non-zero, indicates that the variable is <tt>thread_local</tt></li> +<li><i>unnamed_addr</i>: If present and non-zero, indicates that the variable +has <tt>unnamed_addr<tt></li> + </ul> </div> @@ -975,6 +978,10 @@ entries.</li> <li><i>gc</i>: If present and nonzero, the 1-based garbage collector index in the table of <a href="#MODULE_CODE_GCNAME">MODULE_CODE_GCNAME</a> entries.</li> + +<li><i>unnamed_addr</i>: If present and non-zero, indicates that the function +has <tt>unnamed_addr<tt></li> + </ul> </div> diff --git a/docs/LangRef.html b/docs/LangRef.html index 21144125b0..2121fc6740 100644 --- a/docs/LangRef.html +++ b/docs/LangRef.html @@ -846,6 +846,10 @@ define i32 @main() { <i>; i32()* </i> region of memory, and all memory objects in LLVM are accessed through pointers.</p> +<p>Global variables can be marked with <tt>unnamed_addr</tt> which indicates + that the address is not significant, only the content. Constants marked + like this can be merged if they have the same content.</p> + <p>A global variable may be declared to reside in a target-specific numbered address space. For targets that support them, address spaces may affect how optimizations are performed and/or what target instructions are used to @@ -885,7 +889,8 @@ define i32 @main() { <i>; i32()* </i> <p>LLVM function definitions consist of the "<tt>define</tt>" keyword, an optional <a href="#linkage">linkage type</a>, an optional <a href="#visibility">visibility style</a>, an optional - <a href="#callingconv">calling convention</a>, a return type, an optional + <a href="#callingconv">calling convention</a>, + an optional <tt>unnamed_addr</tt> attribute, a return type, an optional <a href="#paramattrs">parameter attribute</a> for the return type, a function name, a (possibly empty) argument list (each with optional <a href="#paramattrs">parameter attributes</a>), optional @@ -896,7 +901,8 @@ define i32 @main() { <i>; i32()* </i> <p>LLVM function declarations consist of the "<tt>declare</tt>" keyword, an optional <a href="#linkage">linkage type</a>, an optional <a href="#visibility">visibility style</a>, an optional - <a href="#callingconv">calling convention</a>, a return type, an optional + <a href="#callingconv">calling convention</a>, + an optional <tt>unnamed_addr</tt> attribute, a return type, an optional <a href="#paramattrs">parameter attribute</a> for the return type, a function name, a possibly empty list of arguments, an optional alignment, and an optional <a href="#gc">garbage collector name</a>.</p> @@ -922,6 +928,9 @@ define i32 @main() { <i>; i32()* </i> specified, the function is forced to have at least that much alignment. All alignments must be a power of 2.</p> +<p>If the <tt>unnamed_addr</tt> attribute is given, the address is know to not + be significant and two identical functions can be merged</p>. + <h5>Syntax:</h5> <pre class="doc_code"> define [<a href="#linkage">linkage</a>] [<a href="#visibility">visibility</a>] |