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| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2019-02-04 23:41:59 +0000 |
|---|---|---|
| committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2019-02-04 23:41:59 +0000 |
| commit | 24f14993e8743a4944756a8acc68d8c6fa7de9a6 (patch) | |
| tree | 1277f0b9a843501ccc924e3e14b8507a079eea7c /llvm/lib/CodeGen/SelectionDAG | |
| parent | 98b9f5b4b3863f8b4f206556ca167b808f46e420 (diff) | |
| download | bcm5719-llvm-24f14993e8743a4944756a8acc68d8c6fa7de9a6.tar.gz bcm5719-llvm-24f14993e8743a4944756a8acc68d8c6fa7de9a6.zip | |
GlobalISel: Combine g_extract with g_merge_values
Try to use the underlying source registers.
This enables legalization in more cases where some irregular
operations are widened and others narrowed.
This seems to make the test_combines_2 AArch64 test worse, since the
MERGE_VALUES has multiple uses. Since this should be required for
legalization, a hasOneUse check is probably inappropriate (or maybe
should only be used if the merge is legal?).
llvm-svn: 353121
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG')
0 files changed, 0 insertions, 0 deletions
