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annotate gen/linkage.h @ 1137:45d73f0a9b43

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Automated merge with http://hg.dsource.org/projects/ldc
author Christian Kamm <kamm incasoftware de>
date Tue, 24 Mar 2009 14:34:16 +0100
parents 123812e02bc8
children 3647bef175d7
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f0b6549055ab Make LDC work with LLVM trunk (s/LinkOnceLinkage/LinkOnceOdrLinkage/)
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1 #ifndef LDC_GEN_LINKAGE_H
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2 #define LDC_GEN_LINKAGE_H
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3
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123812e02bc8 Split out LLVM_REV into separate header, to reduce rebuilding when only the LDC
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4 #include "gen/llvm-version.h"
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6 // Make it easier to test new linkage types
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7 // Also used to adapt to some changes in LLVM between 2.5 and 2.6
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10 // LLVM r66339 introduces LinkOnceODRLinkage, which is just what we want here.
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11 // (It also renamed LinkOnceLinkage, so this #if is needed for LDC to compile
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12 // with both 2.5 and trunk)
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13 #if LLVM_REV >= 66339
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14 # define TEMPLATE_LINKAGE_TYPE llvm::GlobalValue::LinkOnceODRLinkage
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15 # define TYPEINFO_LINKAGE_TYPE llvm::GlobalValue::LinkOnceODRLinkage
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16 // The One-Definition-Rule shouldn't matter for debug info, right?
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17 # define DEBUGINFO_LINKONCE_LINKAGE_TYPE \
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18 llvm::GlobalValue::LinkOnceAnyLinkage
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20 // For 2.5 and any LLVM revision before 66339 we want to use LinkOnceLinkage
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21 // It's equivalent to LinkOnceAnyLinkage in trunk except that the inliner had a
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22 // hack (removed in r66339) to allow inlining of templated functions even though
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23 // LinkOnce doesn't technically allow that.
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24 #else
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25 # define TEMPLATE_LINKAGE_TYPE llvm::GlobalValue::LinkOnceLinkage
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26 # define TYPEINFO_LINKAGE_TYPE llvm::GlobalValue::LinkOnceLinkage
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27 # define DEBUGINFO_LINKONCE_LINKAGE_TYPE \
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28 llvm::GlobalValue::LinkOnceLinkage
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29 #endif
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31 #endif