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| author | Matt Turner <[email protected]> | 2016-04-20 14:22:53 -0700 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2016-04-21 10:32:40 -0700 |
| commit | 33565d67641142a68d537023e181b6dcd587e551 (patch) | |
| tree | 45511efd04452dc6e996890c165259eb8fe60290 /src/compiler/glsl/ir.cpp | |
| parent | 0020ca3c9269a8baa54501cb824af14fa497ac14 (diff) | |
i965/fs: Readd opt_drop_redundant_mov_to_flags().
This reverts commit b449366587b5f3f64c6fb45fe22c39e4bc8a4309.
I removed the pass thinking that it was now not useful, but that was not
true. I believe I ran shader-db on HSW and saw no results, but HSW does
not use the unlit centroid workaround code and as a result does not emit
redundant MOV_DISPATCH_TO_FLAGS instructions.
On IVB, the shader-db results are:
total instructions in shared programs: 6650806 -> 6646303 (-0.07%)
instructions in affected programs: 106893 -> 102390 (-4.21%)
helped: 793
total cycles in shared programs: 56195538 -> 56103720 (-0.16%)
cycles in affected programs: 873048 -> 781230 (-10.52%)
helped: 553
HURT: 209
On SNB, the shader-db results are:
total instructions in shared programs: 7173074 -> 7168541 (-0.06%)
instructions in affected programs: 119757 -> 115224 (-3.79%)
helped: 799
total cycles in shared programs: 98128032 -> 98072938 (-0.06%)
cycles in affected programs: 1437104 -> 1382010 (-3.83%)
helped: 454
HURT: 237
Reviewed-by: Iago Toral Quiroga <[email protected]>
Diffstat (limited to 'src/compiler/glsl/ir.cpp')
0 files changed, 0 insertions, 0 deletions