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| author | Dimitry Andric <dim@FreeBSD.org> | 2015-08-07 23:01:33 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2015-08-07 23:01:33 +0000 |
| commit | ee8648bdac07986a0f1ec897b02ec82a2f144d46 (patch) | |
| tree | 52d1861acda1205241ee35a94aa63129c604d469 /docs/ExceptionHandling.rst | |
| parent | 1a82d4c088707c791c792f6822f611b47a12bdfe (diff) | |
Diffstat (limited to 'docs/ExceptionHandling.rst')
| -rw-r--r-- | docs/ExceptionHandling.rst | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/docs/ExceptionHandling.rst b/docs/ExceptionHandling.rst index 72ed78a3c99a..55ffdb45efe9 100644 --- a/docs/ExceptionHandling.rst +++ b/docs/ExceptionHandling.rst @@ -339,11 +339,11 @@ original context before code generation. Catch handlers are called with a pointer to the handler itself as the first argument and a pointer to the parent function's stack frame as the second -argument. The catch handler uses the `llvm.recoverframe -<LangRef.html#llvm-frameallocate-and-llvm-framerecover-intrinsics>`_ to get a +argument. The catch handler uses the `llvm.localrecover +<LangRef.html#llvm-localescape-and-llvm-localrecover-intrinsics>`_ to get a pointer to a frame allocation block that is created in the parent frame using -the `llvm.allocateframe -<LangRef.html#llvm-frameallocate-and-llvm-framerecover-intrinsics>`_ intrinsic. +the `llvm.localescape +<LangRef.html#llvm-localescape-and-llvm-localrecover-intrinsics>`_ intrinsic. The ``WinEHPrepare`` pass will have created a structure definition for the contents of this block. The first two members of the structure will always be (1) a 32-bit integer that the runtime uses to track the exception state of the @@ -520,12 +520,12 @@ action. A code of ``i32 1`` indicates a catch action, which expects three additional arguments. Different EH schemes give different meanings to the three arguments, but the first argument indicates whether the catch should fire, the second is -the frameescape index of the exception object, and the third is the code to run +the localescape index of the exception object, and the third is the code to run to catch the exception. For Windows C++ exception handling, the first argument for a catch handler is a pointer to the RTTI type descriptor for the object to catch. The second -argument is an index into the argument list of the ``llvm.frameescape`` call in +argument is an index into the argument list of the ``llvm.localescape`` call in the main function. The exception object will be copied into the provided stack object. If the exception object is not required, this argument should be -1. The third argument is a pointer to a function implementing the catch. This |