diff options
| author | Kenneth Graunke <[email protected]> | 2019-05-16 22:41:13 -0700 |
|---|---|---|
| committer | Kenneth Graunke <[email protected]> | 2019-06-05 16:45:12 -0700 |
| commit | 4f3c82c72c57acd4800e12ec77ad1b830812072c (patch) | |
| tree | 86e4c72991e5dc041ca6c6c0337b692967c39556 /src/mesa/state_tracker | |
| parent | f4d4c426084127d88aba11f22b4f33ff93700963 (diff) | |
st/nir: Don't use GLSL IR's MOD_TO_FLOOR lowering when using NIR.
Both GLSL IR and NIR perform the same mod -> floor lowering for 32-bit
types. But nir_lower_double_ops is slightly more defensive against
lowered drcp precision loss, and handles mod(x, x) = 0 directly. This
works well...assuming nir_lower_double_ops actually gets an fmod op to
lower in the first place.
The previous patches enabled NIR-based lowering for the remaining
drivers, so we can stop using the GLSL IR lowering when using NIR.
Fixes KHR-GL45.gpu_shader_fp64.builtin.mod_dvec[234] on iris.
Reviewed-by: Marek Olšák <[email protected]>
Diffstat (limited to 'src/mesa/state_tracker')
| -rw-r--r-- | src/mesa/state_tracker/st_glsl_to_ir.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_ir.cpp b/src/mesa/state_tracker/st_glsl_to_ir.cpp index ea56bf432a6..ba241c08ad9 100644 --- a/src/mesa/state_tracker/st_glsl_to_ir.cpp +++ b/src/mesa/state_tracker/st_glsl_to_ir.cpp @@ -121,7 +121,7 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog) shader, ctx->Extensions.KHR_blend_equation_advanced_coherent); lower_instructions(ir, - MOD_TO_FLOOR | + (use_nir ? 0 : MOD_TO_FLOOR) | FDIV_TO_MUL_RCP | EXP_TO_EXP2 | LOG_TO_LOG2 | |