This patch implements constant folding for svmul. If the predicate is ptrue or predication is _x, it uses vector_const_binop with aarch64_const_binop as callback and tree_code MULT_EXPR to fold constant integer operands. Tests were added to check the produced assembly for different predicates, signed and unsigned integers, and the svmul_n_* case.
The patch was bootstrapped and regtested on aarch64-linux-gnu, no regression.
OK for mainline?
Signed-off-by: Jennifer Schmitz <jschm...@nvidia.com>
gcc/
* config/aarch64/aarch64-sve-builtins-base.cc (svmul_impl::fold):
Implement and try constant folding.
gcc/testsuite/
* gcc.target/aarch64/sve/const_fold_mul_1.c: New test.
0003-SVE-intrinsics-Fold-constant-operands-for-svmul.patch
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