diff options
| author | Daniel Dunbar <daniel@zuster.org> | 2009-03-18 19:51:01 +0000 |
|---|---|---|
| committer | Daniel Dunbar <daniel@zuster.org> | 2009-03-18 19:51:01 +0000 |
| commit | 0ac86f0821a2ba7ae09793fee4451bef99e9b2f3 (patch) | |
| tree | 93ed75ed88b0bd2498554aa0a361dd06d92e8ca0 /lib/CodeGen/CGCall.cpp | |
| parent | 214399ebd73545dde02b4a45872e7ca9e1d9e742 (diff) | |
PR3835: Interaction with ABI structure passing can inhibit
readnone/readonly attributes.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67224 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGCall.cpp')
| -rw-r--r-- | lib/CodeGen/CGCall.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp index 9e52cbb79c..fd33b50e79 100644 --- a/lib/CodeGen/CGCall.cpp +++ b/lib/CodeGen/CGCall.cpp @@ -1467,6 +1467,9 @@ void CodeGenModule::ConstructAttributeList(const CGFunctionInfo &FI, llvm::Attribute::StructRet | llvm::Attribute::NoAlias)); ++Index; + // sret disables readnone and readonly + FuncAttrs &= ~(llvm::Attribute::ReadOnly | + llvm::Attribute::ReadNone); break; case ABIArgInfo::Ignore: @@ -1493,6 +1496,9 @@ void CodeGenModule::ConstructAttributeList(const CGFunctionInfo &FI, Attributes |= llvm::Attribute::ByVal; Attributes |= llvm::Attribute::constructAlignmentFromInt(AI.getIndirectAlign()); + // byval disables readnone and readonly. + FuncAttrs &= ~(llvm::Attribute::ReadOnly | + llvm::Attribute::ReadNone); break; case ABIArgInfo::Direct: |