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| author | Sriraman Tallam <tmsriram@google.com> | 2017-11-07 19:37:51 +0000 |
|---|---|---|
| committer | Sriraman Tallam <tmsriram@google.com> | 2017-11-07 19:37:51 +0000 |
| commit | 8df1506a8f89c05a622ab6c66640d5c69f59a3b0 (patch) | |
| tree | 29c4122311c8b0f3e71826c6d02f664a88416ccd /lib/CodeGen | |
| parent | f17ed937a60b76b8b8c9c5c4056a163fcea745fa (diff) | |
| download | clang-8df1506a8f89c05a622ab6c66640d5c69f59a3b0.tar.gz | |
New clang option -fno-plt which avoids the PLT and lazy binding while making external calls.
Differential Revision: https://reviews.llvm.org/D39079
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@317605 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/CGCall.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp index 971455a873..cefd73be27 100644 --- a/lib/CodeGen/CGCall.cpp +++ b/lib/CodeGen/CGCall.cpp @@ -1855,6 +1855,16 @@ void CodeGenModule::ConstructAttributeList( !(TargetDecl && TargetDecl->hasAttr<NoSplitStackAttr>())) FuncAttrs.addAttribute("split-stack"); + // Add NonLazyBind attribute to function declarations when -fno-plt + // is used. + if (TargetDecl && CodeGenOpts.NoPLT) { + if (auto *Fn = dyn_cast<FunctionDecl>(TargetDecl)) { + if (!Fn->isDefined() && !AttrOnCallSite) { + FuncAttrs.addAttribute(llvm::Attribute::NonLazyBind); + } + } + } + if (!AttrOnCallSite) { bool DisableTailCalls = CodeGenOpts.DisableTailCalls || |