tree 3975a7bdc1f555afd438123b574e41adcc30ac5c
parent 16e26df6b41b544115be836088f255b15698719d
author Nicolas Capens <capn@google.com> 1646248494 -0500
committer Nicolas Capens <nicolascapens@google.com> 1646799578 +0000

Pass the RelaxedPrecision decoration value to all affected instructions

GLSL.std.450 math functions and a few other instructions have lower
precision requirements when the RelaxedPrecision decoration is present:
https://www.khronos.org/registry/vulkan/specs/1.3/html/vkspec.html#spirvenv-precision-operation

This change does not alter any results. It just enables these
instructions to be optimized for relaxed precision in future changes.

The return type of the functions has been changed to an RValue<> to
prevent accidentally assigning values to them.

Bug: b/222218659
Change-Id: I43c51a597e4445e5e686b9cf3120abdf599d8dae
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/63688
Reviewed-by: Sean Risser <srisser@google.com>
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>