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-rw-r--r--clang/lib/Driver/Tools.cpp17
1 files changed, 17 insertions, 0 deletions
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 384d39e4a22..3c593fc66b8 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -3262,6 +3262,23 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
CmdArgs.push_back("-triple");
CmdArgs.push_back(Args.MakeArgString(TripleStr));
+ if (IsCuda) {
+ // FIXME: We need a (better) way to pass information about
+ // particular compilation pass we're constructing here. For now we
+ // can check which toolchain we're using and pick the other one to
+ // extract the triple.
+ const ToolChain *AuxToolChain;
+ if (&getToolChain() == C.getCudaDeviceToolChain())
+ AuxToolChain = C.getCudaHostToolChain();
+ else if (&getToolChain() == C.getCudaHostToolChain())
+ AuxToolChain = C.getCudaDeviceToolChain();
+ else
+ llvm_unreachable("Can't figure out CUDA compilation mode.");
+ assert(AuxToolChain != nullptr && "No aux toolchain.");
+ CmdArgs.push_back("-aux-triple");
+ CmdArgs.push_back(Args.MakeArgString(AuxToolChain->getTriple().str()));
+ }
+
if (Triple.isOSWindows() && (Triple.getArch() == llvm::Triple::arm ||
Triple.getArch() == llvm::Triple::thumb)) {
unsigned Offset = Triple.getArch() == llvm::Triple::arm ? 4 : 6;
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