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0376bacc1a
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10 Commits

Author SHA1 Message Date
Rafael Espindola
0376bacc1a Change how we keep track of which types are in the dest module. 
Instead of keeping an explicit set, just drop the names of types we choose
to map to some other type.

This has the advantage that the name of the unused will not cause the context
to rename types on module read.

llvm-svn: 222986
 2014-12-01 04:15:59 +00:00
Rafael Espindola
3681046588 Fix formatting. NFC. 
llvm-svn: 222545
 2014-11-21 18:05:55 +00:00
Rafael Espindola
fbe022fed3 Factor common code it Linker::init. 
The TypeFinder was not being used in one of the constructors.

llvm-svn: 222172
 2014-11-17 20:51:01 +00:00
Rafael Espindola
942aaacbe7 Revert "Use a function_ref now that it works (r221753)." 
This reverts commit r221756.

David Blaikie pointed out it was unsafe.

llvm-svn: 221761
 2014-11-12 03:17:33 +00:00
Rafael Espindola
902399f6fd Use a function_ref now that it works (r221753). 
llvm-svn: 221756
 2014-11-12 02:23:37 +00:00
Rafael Espindola
fc1860dc1f Remove the PreserveSource linker mode. 
I noticed that it was untested, and forcing it on caused some tests to fail:

    LLVM :: Linker/metadata-a.ll
    LLVM :: Linker/prefixdata.ll
    LLVM :: Linker/type-unique-odr-a.ll
    LLVM :: Linker/type-unique-simple-a.ll
    LLVM :: Linker/type-unique-simple2-a.ll
    LLVM :: Linker/type-unique-simple2.ll
    LLVM :: Linker/type-unique-type-array-a.ll
    LLVM :: Linker/unnamed-addr1-a.ll
    LLVM :: Linker/visibility1.ll

If it is to be resurrected, it has to be fixed and we should probably have a
-preserve-source command line option in llvm-mc and run tests with and without
it.

llvm-svn: 220741
 2014-10-28 00:24:16 +00:00
Rafael Espindola
5655c1ba55 Make it easier to pass a custom diagnostic handler to the IR linker. 
llvm-svn: 220732
 2014-10-27 23:02:10 +00:00
Rafael Espindola
67b4b608c2 Update the error handling of lib/Linker. 
Instead of passing a std::string&, use the new diagnostic infrastructure.

llvm-svn: 220608
 2014-10-25 04:06:10 +00:00
David Majnemer
abf7854d05 IR: Add COMDATs to the IR 
This new IR facility allows us to represent the object-file semantic of
a COMDAT group.

COMDATs allow us to tie together sections and make the inclusion of one
dependent on another. This is required to implement features like MS
ABI VFTables and optimizing away certain kinds of initialization in C++.

This functionality is only representable in COFF and ELF, Mach-O has no
similar mechanism.

Differential Revision: http://reviews.llvm.org/D4178

llvm-svn: 211920
 2014-06-27 18:19:56 +00:00
Chandler Carruth
a799485f06 [Layering] Sink Linker.h into a Linker subdirectory to make it 
consistent with every other sub-library header in LLVM.

llvm-svn: 203065
 2014-03-06 03:42:23 +00:00