tree 4e2ba7939960d078ae612660ff32891809e07cb8
parent 72140a9969f1070cb7fd50e2c8b6c129c47926ac
author John Stiles <johnstiles@google.com> 1613242681 -0500
committer John Stiles <johnstiles@google.com> 1613490345 +0000

Allow repeated params in Metal out-params helper.

The out-param helpers emitted by the Metal code gen (intended to provide
GLSL out-parameter semantics in Metal) emitted bad code if passed the
same variable for two separate out parameters. It would previously
create two parameters in the helper with the same name. The helper
function now omits the name of the second variable in the parameter list
if it is redundant; we already know the caller is passing the same
variable twice.

Change-Id: Ibdc6c02a9e9e4bdb4f4546a25068f2018aa07b10
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/370258
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>