[PATCH] D36712: Emit section information for extern variables
Elizabeth Andrews via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Wed Aug 16 07:48:19 PDT 2017
eandrews updated this revision to Diff 111341.
eandrews added a comment.
Corrected spelling error.
https://reviews.llvm.org/D36712
Files:
docs/LangRef.rst
Index: docs/LangRef.rst
===================================================================
--- docs/LangRef.rst
+++ docs/LangRef.rst
@@ -622,6 +622,12 @@
Additionally, the global can placed in a comdat if the target has the necessary
support.
+External declarations may have an explicit section specified. Section
+information is retained in LLVM IR for targets that make use of this
+information. Attaching section information to an external declaration is an
+assertion that its definition is located in the specified section. If the
+definition is located in a different section, the behavior is undefined.
+
By default, global initializers are optimized by assuming that global
variables defined within the module are not modified from their
initial values before the start of the global initializer. This is
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