diff options
| author | Andrew Stubbs <ams@codesourcery.com> | 2022-09-22 12:48:30 +0100 |
|---|---|---|
| committer | Andrew Stubbs <ams@codesourcery.com> | 2022-10-11 11:49:25 +0100 |
| commit | bf6b5c74a6f1927174091c73aa51401895ef92f0 (patch) | |
| tree | ea52878987a52bfeced07cb4ddba279b558c1ff6 /gcc | |
| parent | 769a10d0fc45e4923d7eb631170a117529ad5e39 (diff) | |
| download | gcc-bf6b5c74a6f1927174091c73aa51401895ef92f0.zip gcc-bf6b5c74a6f1927174091c73aa51401895ef92f0.tar.gz gcc-bf6b5c74a6f1927174091c73aa51401895ef92f0.tar.bz2 | |
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.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/gcn/gcn-valu.md | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/config/gcn/gcn-valu.md b/gcc/config/gcn/gcn-valu.md index f708e58..00c0e3b 100644 --- a/gcc/config/gcn/gcn-valu.md +++ b/gcc/config/gcn/gcn-valu.md @@ -2391,6 +2391,19 @@ (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 ; GCN does not directly provide a DFmode subtract instruction, so we do it by |