diff options
| author | Yaxun Liu <Yaxun.Liu@amd.com> | 2017-07-08 13:24:52 +0000 |
|---|---|---|
| committer | Yaxun Liu <Yaxun.Liu@amd.com> | 2017-07-08 13:24:52 +0000 |
| commit | 2ce35b601db031549e4a2113fc40deafe24751fe (patch) | |
| tree | d2e6acd66f794051e0eaeafe0e24dcf13ea2f9a8 /lib/Basic/Targets.cpp | |
| parent | e1e45e872fe06f853a7d717c7fe92eee9d0c856c (diff) | |
CodeGen: Fix address space of global variable
Certain targets (e.g. amdgcn) require global variable to stay in global or constant address
space. In C or C++ global variables are emitted in the default (generic) address space.
This patch introduces virtual functions TargetCodeGenInfo::getGlobalVarAddressSpace
and TargetInfo::getConstantAddressSpace to handle this in a general approach.
It only affects IR generated for amdgcn target.
Differential Revision: https://reviews.llvm.org/D33842
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@307470 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Basic/Targets.cpp')
| -rw-r--r-- | lib/Basic/Targets.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp index 0fa5b7d81e..3a70d90924 100644 --- a/lib/Basic/Targets.cpp +++ b/lib/Basic/Targets.cpp @@ -2404,6 +2404,10 @@ public: return LangAS::opencl_constant; } + llvm::Optional<unsigned> getConstantAddressSpace() const override { + return LangAS::FirstTargetAddressSpace + AS.Constant; + } + /// \returns Target specific vtbl ptr address space. unsigned getVtblPtrAddressSpace() const override { return AS.Constant; } |