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| author | Reid Kleckner <reid@kleckner.net> | 2014-05-09 22:46:15 +0000 |
|---|---|---|
| committer | Reid Kleckner <reid@kleckner.net> | 2014-05-09 22:46:15 +0000 |
| commit | 37abaca3c26a4f89e34df356c3ad6018f42580ce (patch) | |
| tree | 5c1cceb3a6330f0477c8a155faa4989ac0832d12 /clang/lib/CodeGen/CGCXXABI.h | |
| parent | 46e1ecdecc9b6e6809fd85d9a2f7ae707e1aadd0 (diff) | |
| download | bcm5719-llvm-37abaca3c26a4f89e34df356c3ad6018f42580ce.tar.gz bcm5719-llvm-37abaca3c26a4f89e34df356c3ad6018f42580ce.zip | |
MS ABI: Pass 'sret' as the second parameter of instance methods
Summary:
MSVC always passes 'sret' after 'this', unlike GCC. This required
changing a number of places in Clang that assumed the sret parameter was
always first in LLVM IR.
This fixes win64 MSVC ABI compatibility for methods returning structs.
Reviewers: rsmith, majnemer
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D3618
llvm-svn: 208458
Diffstat (limited to 'clang/lib/CodeGen/CGCXXABI.h')
| -rw-r--r-- | clang/lib/CodeGen/CGCXXABI.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CGCXXABI.h b/clang/lib/CodeGen/CGCXXABI.h index fb52838e919..868c1f90930 100644 --- a/clang/lib/CodeGen/CGCXXABI.h +++ b/clang/lib/CodeGen/CGCXXABI.h @@ -114,6 +114,10 @@ public: /// Returns how an argument of the given record type should be passed. virtual RecordArgABI getRecordArgABI(const CXXRecordDecl *RD) const = 0; + /// Returns true if the implicit 'sret' parameter comes after the implicit + /// 'this' parameter of C++ instance methods. + virtual bool isSRetParameterAfterThis() const { return false; } + /// Find the LLVM type used to represent the given member pointer /// type. virtual llvm::Type * |
