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-rw-r--r--gcc/tree-core.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/tree-core.h b/gcc/tree-core.h
index d529712..a74fbdf 100644
--- a/gcc/tree-core.h
+++ b/gcc/tree-core.h
@@ -993,9 +993,11 @@ enum clobber_kind {
CLOBBER_UNDEF,
/* Beginning of storage duration, e.g. malloc. */
CLOBBER_STORAGE_BEGIN,
- /* Beginning of object lifetime, e.g. C++ constructor. */
+ /* Beginning of object data, e.g. start of C++ constructor. This differs
+ from C++ 'lifetime', which starts when initialization is complete; a
+ clobber there would discard the initialization. */
CLOBBER_OBJECT_BEGIN,
- /* End of object lifetime, e.g. C++ destructor. */
+ /* End of object data, e.g. end of C++ destructor. */
CLOBBER_OBJECT_END,
/* End of storage duration, e.g. free. */
CLOBBER_STORAGE_END,