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| author | Eli Friedman <eli.friedman@gmail.com> | 2011-09-13 20:48:30 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2011-09-13 20:48:30 +0000 |
| commit | de24d44665486e98df2aeb2ef5bbc163abfe7981 (patch) | |
| tree | 4781619f860a018a1bf2ad73368c165dba681941 /lib/CodeGen/CGObjC.cpp | |
| parent | 1c7e0472f5683a8ade62285f366637050cf113e5 (diff) | |
Turn off the generation of unaligned atomic load/store; I'm going to explicitly error out on such cases in the backend, at least for the moment.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139640 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGObjC.cpp')
| -rw-r--r-- | lib/CodeGen/CGObjC.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/CodeGen/CGObjC.cpp b/lib/CodeGen/CGObjC.cpp index 8f5e1fb761..456909bf53 100644 --- a/lib/CodeGen/CGObjC.cpp +++ b/lib/CodeGen/CGObjC.cpp @@ -378,7 +378,9 @@ static void emitStructGetterCall(CodeGenFunction &CGF, ObjCIvarDecl *ivar, /// accesses. They don't have to be fast, just faster than a function /// call and a mutex. static bool hasUnalignedAtomics(llvm::Triple::ArchType arch) { - return (arch == llvm::Triple::x86 || arch == llvm::Triple::x86_64); + // FIXME: Allow unaligned atomic load/store on x86. (It is not + // currently supported by the backend.) + return 0; } /// Return the maximum size that permits atomic accesses for the given |