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aca4948997
libclc seems to have piles of bugs where it relies on precise floating point behaviours to meet CL precision requirements but doesn't actually disable fast math in its own spir-v. I am tired of playing this whack-a-mole game. Let's just assume that the math in CLC is right and should not be optimized in unsafe ways, and force the exact bit across libclc. This works around a large class of libclc bugs that keep cropping up from innocuous NIR changes. This does not force the exact bit for application shaders using libclc, just for the calculations inside of libclc itself. This seems like the right tradeoff all considered, anything "fast" bypasses libclc anyway. Fixes generated_tests/cl/builtin/math/builtin-float-pow-1.0.generated.cl on drivers using nir_opt_reassociate, and probably other stuff. Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Jesse Natalie <jenatali@microsoft.com> Reviewed-by: Karol Herbst <kherbst@redhat.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36527> |
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| .. | ||
| clc.c | ||
| clc.h | ||
| clc_helpers.cpp | ||
| clc_helpers.h | ||
| mesa_clc.c | ||
| meson.build | ||
| nir_clc_helpers.h | ||
| nir_load_libclc.c | ||