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In the pattern X - (X / Y) * Y to X % Y, this patch guards the simplification for vector types by a check for: 1) Support of the mod optab for vectors OR 2) Application before vector lowering for non-VL vectors. This is to prevent reverting vectorization of modulo to div/mult/sub if the target does not support vector mod optab. The patch was bootstrapped and tested with no regression on aarch64-linux-gnu and x86_64-linux-gnu. OK for mainline? Signed-off-by: Jennifer Schmitz <jschmitz@nvidia.com> gcc/ PR tree-optimization/116569 * match.pd: Guard simplification to trunc_mod with check for mod optab support. gcc/testsuite/ PR tree-optimization/116569 * gcc.dg/torture/pr116569.c: New test. |
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