Fix for https://reviews.llvm.org/D26168.
Fix for https://reviews.llvm.org/D26168.


Former-commit-id: dac6e518501c2740e5fabab705cd290e85c9b9ca
darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide