Michel Danzer a7879dcf33 R600/SI: Also enable WQM for image opcodes which calculate LOD v3 ...

If whole quad mode isn't enabled for these, the level of detail is
calculated incorrectly for pixels along diagonal triangle edges, causing
artifacts.

v2: Use a TSFlag instead of lots of switch cases
v3: Add test coverage

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88642
Reviewed-by: Tom Stellard <tom@stellard.net>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228372 91177308-0d34-0410-b5e6-96231b3b80d8

2015-02-06 02:51:20 +00:00

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