diff options
| author | Kenneth Graunke <[email protected]> | 2014-01-30 17:50:02 -0800 |
|---|---|---|
| committer | Kenneth Graunke <[email protected]> | 2014-01-31 17:50:09 -0800 |
| commit | e1cdafe6f78b4e271fd22da2e8d92c2684282e77 (patch) | |
| tree | d84e137075b7f7ec1dcf414245d177e078d732ef /src/mesa/drivers | |
| parent | d8878055f5f46726822d03cd3a81e53e5ee50059 (diff) | |
i965: Fix math instruction hstride assertions on Broadwell.
In the final revision of my gen8_generator patch, I updated the MATH
instruction's assertion from (dst.hstride == 1) to check that source and
destination hstride matched. Unfortunately, I didn't test this enough,
and many Piglit tests fail this test.
The documentation indicates that "scalar source is also supported",
which we believe means <0,1,0> access mode (hstride == 0). If hstride
is non-zero, then it must match the destination register.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen8_generator.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/gen8_generator.cpp b/src/mesa/drivers/dri/i965/gen8_generator.cpp index ee5f792187f..1e2ac09bfd5 100644 --- a/src/mesa/drivers/dri/i965/gen8_generator.cpp +++ b/src/mesa/drivers/dri/i965/gen8_generator.cpp @@ -299,7 +299,7 @@ gen8_generator::math(unsigned math_function, { gen8_instruction *inst = next_inst(BRW_OPCODE_MATH); - assert(dst.hstride == src0.hstride); + assert(src0.hstride == 0 || src0.hstride == dst.hstride); gen8_set_math_function(inst, math_function); gen8_set_dst(brw, inst, dst); |