tree 074ac712d7ba73abaeb3adc3e8f56cb1d47eece4
parent b3acad0cbeb875f677e9b611bc8e0fb296b6fe46
author Shahbaz Youssefi <syoussefi@chromium.org> 1648655321 -0400
committer Angle LUCI CQ <angle-scoped@luci-project-accounts.iam.gserviceaccount.com> 1648734679 +0000

SPIR-V Gen: Fix aliasing out parameters

In ANGLE, when an unindexed lvalue was passed as an out parameter to a
function, SPIR-V was generated such that the lvalue is passed in
directly.  A Skia test revealed a difference in SPIR-V and GLSL
semantics where aliasing out parameters are expected to work on local
copies until the end of the function.

Bug: b/226904235
Change-Id: I476af01eb7d065272825967111cd208faf88c275
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3561278
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>