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| author | Andrew Stubbs <ams@codesourcery.com> | 2022-09-22 12:48:30 +0100 |
|---|---|---|
| committer | Andrew Stubbs <ams@codesourcery.com> | 2022-10-12 11:42:39 +0100 |
| commit | a199fcd8bb00be552c49ea2ddc6510f6e383c3b7 (patch) | |
| tree | d6b26bc576e92c29c91a3a2bff44761a35eff49c /gcc | |
| parent | dd528a4922fcf6c18548d0cb4789272793ebf1c1 (diff) | |
| download | gcc-a199fcd8bb00be552c49ea2ddc6510f6e383c3b7.zip gcc-a199fcd8bb00be552c49ea2ddc6510f6e383c3b7.tar.gz gcc-a199fcd8bb00be552c49ea2ddc6510f6e383c3b7.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/ChangeLog.omp | 7 | ||||
| -rw-r--r-- | gcc/config/gcn/gcn-valu.md | 13 |
2 files changed, 20 insertions, 0 deletions
diff --git a/gcc/ChangeLog.omp b/gcc/ChangeLog.omp index c388c48..7dcc220 100644 --- a/gcc/ChangeLog.omp +++ b/gcc/ChangeLog.omp @@ -3,6 +3,13 @@ Backport from mainline: 2022-10-11 Andrew Stubbs <ams@codesourcery.com> + * config/gcn/gcn-valu.md (neg<mode>2): New define_expand. + +2022-10-12 Andrew Stubbs <ams@codesourcery.com> + + Backport from mainline: + 2022-10-11 Andrew Stubbs <ams@codesourcery.com> + * config/gcn/gcn-valu.md (vec_init<V_ALL:mode><V_ALL_ALT:mode>): New. * config/gcn/gcn.cc (GEN_VN): Add andvNsi3, subvNsi3. (GEN_VNM): Add gathervNm_expr. diff --git a/gcc/config/gcn/gcn-valu.md b/gcc/config/gcn/gcn-valu.md index 3e7434a..9691ff4 100644 --- a/gcc/config/gcn/gcn-valu.md +++ b/gcc/config/gcn/gcn-valu.md @@ -2394,6 +2394,19 @@ (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 |