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| author | Andrew Stubbs <ams@baylibre.com> | 2025-06-12 16:58:33 +0000 |
|---|---|---|
| committer | Andrew Stubbs <ams@baylibre.com> | 2025-07-30 13:00:37 +0000 |
| commit | 4ff3d0d40af181140ecad42fb23047e374967f4d (patch) | |
| tree | b0e462b57d1586fd2dc1719ceb879c1994440b39 /gcc/dwarf2ctf.cc | |
| parent | 9ebe1b5d26fda4fffb014d55c84db4239a955e27 (diff) | |
| download | gcc-4ff3d0d40af181140ecad42fb23047e374967f4d.zip gcc-4ff3d0d40af181140ecad42fb23047e374967f4d.tar.gz gcc-4ff3d0d40af181140ecad42fb23047e374967f4d.tar.bz2 | |
amdgcn: add DImode offsets for gather/scatter
Add new variant of he gather_load and scatter_store instructions that take the
offsets in DImode. This is not the natural width for offsets in the
instruction set, but we can use them to compute a vector of absolute addresses,
which does work.
This enables the autovectorizer to use gather/scatter in a number of additional
scenarios (one of which shows up in the SPEC HPC lbm benchmark).
gcc/ChangeLog:
* config/gcn/gcn-valu.md (gather_load<mode><vndi>): New.
(scatter_store<mode><vndi>): New.
(mask_gather_load<mode><vndi>): New.
(mask_scatter_store<mode><vndi>): New.
* config/gcn/gcn.cc (gcn_expand_scaled_offsets): Support DImode.
(cherry picked from commit 351fa55c58a036f148d13bca972e687a0bacd113)
Diffstat (limited to 'gcc/dwarf2ctf.cc')
0 files changed, 0 insertions, 0 deletions