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From: Andrew Stubbs <ams@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r13-3224] amdgcn: Add vector integer negate insn Date: Tue, 11 Oct 2022 11:01:56 +0000 (GMT) [thread overview] Message-ID: <20221011110156.C9E913857B8A@sourceware.org> (raw) https://gcc.gnu.org/g:bf6b5c74a6f1927174091c73aa51401895ef92f0 commit r13-3224-gbf6b5c74a6f1927174091c73aa51401895ef92f0 Author: Andrew Stubbs <ams@codesourcery.com> Date: Thu Sep 22 12:48:30 2022 +0100 amdgcn: Add vector integer negate insn Another example of the vectorizer needing explicit insns where the scalar expander just works. gcc/ChangeLog: * config/gcn/gcn-valu.md (neg<mode>2): New define_expand. Diff: --- gcc/config/gcn/gcn-valu.md | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/gcc/config/gcn/gcn-valu.md b/gcc/config/gcn/gcn-valu.md index f708e587f38..00c0e3be1ea 100644 --- a/gcc/config/gcn/gcn-valu.md +++ b/gcc/config/gcn/gcn-valu.md @@ -2390,6 +2390,19 @@ [(set_attr "type" "vop2,ds") (set_attr "length" "8,8")]) +;; }}} +;; {{{ Int unops + +(define_expand "neg<mode>2" + [(match_operand:V_INT 0 "register_operand") + (match_operand:V_INT 1 "register_operand")] + "" + { + emit_insn (gen_sub<mode>3 (operands[0], gcn_vec_constant (<MODE>mode, 0), + operands[1])); + DONE; + }) + ;; }}} ;; {{{ FP binops - special cases
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