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Adding support for __builtin_annotation with an intrinsic called llvm.annotation. This is similar to llvm.var.annotation but is applied to expressions.

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llvm-svn: 42211
This commit is contained in:
Tanya Lattner 2007-09-21 22:59:12 +00:00
parent c7279629cc
commit e8c1cb789d
2 changed files with 41 additions and 0 deletions
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37
docs/LangRef.html
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@ -210,6 +210,10 @@
<li><a href="#int_var_annotation">
<tt>llvm.var.annotation</tt>' Intrinsic</a></li>
</ol>
<ol>
<li><a href="#int_annotation">
<tt>llvm.annotation</tt>' Intrinsic</a></li>
</ol>
</li>
</ol>
</li>
@ -5263,6 +5267,39 @@ This can be useful for special purpose optimizations that want to look for these
generation and optimization.
</div>
<!-- _______________________________________________________________________ -->
<div class="doc_subsubsection">
<a name="int_annotation">'<tt>llvm.annotation</tt>' Intrinsic</a>
</div>
<div class="doc_text">
<h5>Syntax:</h5>
<pre>
declare i32 @llvm.annotation(i32 &lt;val&gt;, i8* &lt;str&gt;, i8* &lt;str&gt;, i32 &lt;int&gt; )
</pre>
<h5>Overview:</h5>
<p>This is an overloaded intrinsic. You can use '<tt>llvm.annotation</tt>' on
any integer bit width. Not all targets support all bit widths however.
</p>
<h5>Arguments:</h5>
<p>
The first argument is an integer value (result of some expression),
the second is a pointer to a global string, the third is a pointer to a global
string which is the source file name, and the last argument is the line number.
</p>
<h5>Semantics:</h5>
<p>
This intrinsic allows annotations to be put on arbitrary expressions
with arbitrary strings. This can be useful for special purpose optimizations
that want to look for these annotations. These have no other defined use, they
are ignored by code generation and optimization.
</div>
<!-- *********************************************************************** -->
<hr>

4
include/llvm/Intrinsics.td
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@ -240,6 +240,10 @@ def int_eh_dwarf_cfa : Intrinsic<[llvm_ptr_ty, llvm_i32_ty]>;
def int_var_annotation : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
llvm_ptr_ty, llvm_i32_ty],
[], "llvm.var.annotation">;
def int_annotation : Intrinsic<[llvm_anyint_ty, LLVMMatchType<0>, llvm_ptr_ty,
llvm_ptr_ty, llvm_i32_ty],
[], "llvm.annotation">;
//===------------------------ Trampoline Intrinsics -----------------------===//
//