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This is a respin of a AArch64 patch that adds support for builtin arithmetic overflow operations. This update separates the patch into multiple pieces and addresses comments made by Richard Earnshaw here: https://gcc.gnu.org/ml/gcc-patches/2017-07/msg00249.html Original patch and motivation for patch here: https://gcc.gnu.org/ml/gcc-patches/2017-05/msg01512.html This patch contains new patterns for subv<mode> overflow patterns. Bootstrapped and tested on aarch64-linux-gnu. Okay for trunk? 2018-05-31 Michael Collison <michael.collison@arm.com> Richard Henderson <rth@redhat.com> * config/aarch64/aarch64.md (subv<GPI>4, usubv<GPI>4): New patterns. (subti): Handle op1 zero. (subvti4, usub4ti4): New. (*sub<GPI>3_compare1_imm): New. (sub<GPI>3_carryinCV): New. (*sub<GPI>3_carryinCV_z1_z2, *sub<GPI>3_carryinCV_z1): New. (*sub<GPI>3_carryinCV_z2, *sub<GPI>3_carryinCV): New.
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gnutools-6308-pt3.patch
Description: gnutools-6308-pt3.patch
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