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| author | Bill Wendling <isanbard@gmail.com> | 2011-07-31 06:30:59 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2011-07-31 06:30:59 +0000 |
| commit | dccc03b2423fe65efb5963ae816b99c24fc53374 (patch) | |
| tree | ada265d222c45b8fe4d227796f9566538e540e3f /docs | |
| parent | 6762dc1fb38f7579b33143c80f057319e1537678 (diff) | |
| download | llvm-dccc03b2423fe65efb5963ae816b99c24fc53374.tar.gz llvm-dccc03b2423fe65efb5963ae816b99c24fc53374.tar.bz2 llvm-dccc03b2423fe65efb5963ae816b99c24fc53374.tar.xz | |
Add the 'resume' instruction for the new EH rewrite.
This adds the 'resume' instruction class, IR parsing, and bitcode reading and
writing. The 'resume' instruction resumes propagation of an existing (in-flight)
exception whose unwinding was interrupted with a 'landingpad' instruction (to be
added later).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136589 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/LangRef.html | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/docs/LangRef.html b/docs/LangRef.html index 6c36ea1870..ac527c4df5 100644 --- a/docs/LangRef.html +++ b/docs/LangRef.html @@ -124,6 +124,7 @@ <li><a href="#i_indirectbr">'<tt>indirectbr</tt>' Instruction</a></li> <li><a href="#i_invoke">'<tt>invoke</tt>' Instruction</a></li> <li><a href="#i_unwind">'<tt>unwind</tt>' Instruction</a></li> + <li><a href="#i_resume">'<tt>resume</tt>' Instruction</a></li> <li><a href="#i_unreachable">'<tt>unreachable</tt>' Instruction</a></li> </ol> </li> @@ -3023,13 +3024,14 @@ should not be exposed to source languages.</p> control flow, not values (the one exception being the '<a href="#i_invoke"><tt>invoke</tt></a>' instruction).</p> -<p>There are seven different terminator instructions: the +<p>There are eight different terminator instructions: the '<a href="#i_ret"><tt>ret</tt></a>' instruction, the '<a href="#i_br"><tt>br</tt></a>' instruction, the '<a href="#i_switch"><tt>switch</tt></a>' instruction, the '<a href="#i_indirectbr">'<tt>indirectbr</tt></a>' Instruction, the '<a href="#i_invoke"><tt>invoke</tt></a>' instruction, the - '<a href="#i_unwind"><tt>unwind</tt></a>' instruction, and the + '<a href="#i_unwind"><tt>unwind</tt></a>' instruction, the + '<a href="#i_resume"><tt>resume</tt></a>' instruction, and the '<a href="#i_unreachable"><tt>unreachable</tt></a>' instruction.</p> <!-- _______________________________________________________________________ --> @@ -3350,6 +3352,39 @@ that the invoke/unwind semantics are likely to change in future versions.</p> </div> + <!-- _______________________________________________________________________ --> + +<h4> + <a name="i_resume">'<tt>resume</tt>' Instruction</a> +</h4> + +<div> + +<h5>Syntax:</h5> +<pre> + resume <type> <value> +</pre> + +<h5>Overview:</h5> +<p>The '<tt>resume</tt>' instruction is a terminator instruction that has no + successors.</p> + +<h5>Arguments:</h5> +<p>The '<tt>resume</tt>' instruction's argument must have the same type as the + result of any '<tt>landingpad</tt>' instruction in the same function.</p> + +<h5>Semantics:</h5> +<p>The '<tt>resume</tt>' instruction resumes propagation of an existing + (in-flight) exception whose unwinding was interrupted with + a landingpad instruction.</p> + +<h5>Example:</h5> +<pre> + resume { i8*, i32 } %exn +</pre> + +</div> + <!-- _______________________________________________________________________ --> <h4> |