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AutoUpgrade: upgrade from scalar TBAA format to struct-path aware TBAA format.

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We treat TBAA tags as struct-path aware TBAA format when the first operand
is a MDNode and the tag has 3 or more operands.

llvm-svn: 191593
This commit is contained in:
Manman Ren
2013-09-28 00:22:27 +00:00
parent 41a993f6f8
commit 209b17cdaa
7 changed files with 72 additions and 0 deletions
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llvm/lib/Bitcode/Reader/BitcodeReader.h
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@@ -144,6 +144,8 @@ class BitcodeReader : public GVMaterializer {
std::vector<std::pair<GlobalAlias*, unsigned> > AliasInits;
std::vector<std::pair<Function*, unsigned> > FunctionPrefixes;
SmallVector<Instruction*, 64> InstsWithTBAATag;
/// MAttributes - The set of attributes by index. Index zero in the
/// file is for null, and is thus not represented here. As such all indices
/// are off by one.