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| author | Shuxin Yang <shuxin.llvm@gmail.com> | 2013-10-23 17:28:19 +0000 |
|---|---|---|
| committer | Shuxin Yang <shuxin.llvm@gmail.com> | 2013-10-23 17:28:19 +0000 |
| commit | 8e3851a6eb9fe5fc30094c3a00d2b89c7cd68cbd (patch) | |
| tree | aa761eb31c1f7c14a3c9e313f4a1d29ea06e066b /lib/Transforms/IPO/GlobalOpt.cpp | |
| parent | f39fe46062d2093fc3d7c092bc8c4561b744164c (diff) | |
| download | external_llvm-8e3851a6eb9fe5fc30094c3a00d2b89c7cd68cbd.zip external_llvm-8e3851a6eb9fe5fc30094c3a00d2b89c7cd68cbd.tar.gz external_llvm-8e3851a6eb9fe5fc30094c3a00d2b89c7cd68cbd.tar.bz2 | |
Use address-taken to disambiguate global variable and indirect memops.
Major steps include:
1). introduces a not-addr-taken bit-field in GlobalVariable
2). GlobalOpt pass sets "not-address-taken" if it proves a global varirable
dosen't have its address taken.
3). AA use this info for disambiguation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193251 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/IPO/GlobalOpt.cpp')
| -rw-r--r-- | lib/Transforms/IPO/GlobalOpt.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp index 82a59ed..a259b4d 100644 --- a/lib/Transforms/IPO/GlobalOpt.cpp +++ b/lib/Transforms/IPO/GlobalOpt.cpp @@ -1723,6 +1723,7 @@ bool GlobalOpt::ProcessGlobal(GlobalVariable *GV, if (GlobalStatus::analyzeGlobal(GV, GS)) return false; + GV->setAddressMaybeTaken(false); if (!GS.IsCompared && !GV->hasUnnamedAddr()) { GV->setUnnamedAddr(true); NumUnnamed++; |