Implemented Vulkan-specific rules: - OpTypeImage must declare a scalar 32-bit float or 32-bit integer type for the “Sampled Type”. - OpSampledImage must only consume an “Image” operand whose type has its “Sampled” operand set to 1.
Fixes https://github.com/KhronosGroup/SPIRV-Tools/issues/383 Finalize v2016.4
commit 7648187c34 Author: Dejan Mircevski <deki@google.com> Date: Thu Apr 21 15:44:07 2016 -0400 Turn --vulkan into --target-env.
7648187c34