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Add a clarification about merging constants with and without unnamed_addr.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123530 91177308-0d34-0410-b5e6-96231b3b80d8
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Rafael Espindola 2011-01-15 08:20:57 +00:00
parent ba7c38c36a
commit a5eaa861e4
1 changed files with 4 additions and 1 deletions
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docs/LangRef.html
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@ -848,7 +848,10 @@ define i32 @main() { <i>; i32()* </i>&nbsp;
<p>Global variables can be marked with <tt>unnamed_addr</tt> which indicates
that the address is not significant, only the content. Constants marked
like this can be merged if they have the same content.</p>
like this can be merged with other constants if they have the same
initializer. Note that a constant with significant address <em>can</em>
be merged with a <tt>unnamed_addr</tt> constant, the result being a
constant whose address is significant.</p>
<p>A global variable may be declared to reside in a target-specific numbered
address space. For targets that support them, address spaces may affect how