-
Faith Ekstrand authored
18fde36c changed the way temporary registers were allocated in lower_integer_multiplication so that we allocate regs_written(inst) space and keep the stride of the original destination register. This was to ensure that any MUL which originally followed the CHV/BXT integer multiply regioning restrictions would continue to follow those restrictions even after lowering. This works fine except that I forgot to reset the register file to VGRF so, even though they were assigned a number from alloc.allocate(), they had the wrong register file. This caused some GLES 3.0 CTS tests to start failing on Sandy Bridge due to attempted reads from the MRF: ES3-CTS.functional.shaders.precision.int.highp_mul_fragment.snbm64 ES3-CTS.functional.shaders.precision.int.mediump_mul_fragment.snbm64 ES3-CTS.functional.shaders.precision.int.lowp_mul_fragment.snbm64 ES3-CTS.functional.shaders.precision.uint.highp_mul_fragment.snbm64 ES3-CTS.functional.shaders.precision.uint.mediump_mul_fragment.snbm64 ES3-CTS.functional.shaders.precision.uint.lowp_mul_fragment.snbm64 This commit remedies this problem by, instead of copying inst->dst and overwriting nr, just make a new register and set the region to match inst->dst. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103626 Fixes: 18fde36c Cc: "17.3" <mesa-stable@lists.freedesktop.org> Reviewed-by: Matt Turner <mattst88@gmail.com>
db682b8f