diff options
| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2024-06-21 14:39:17 +0100 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2024-06-21 14:39:50 +0100 |
| commit | 0be0ab90684102d1bed40362b895579f346e0fc0 (patch) | |
| tree | b2e887035813677e5c81d101cc8e204bca5c9198 /llvm/lib | |
| parent | 2dea00b1437f8620e56e5f1f9566492514ac8647 (diff) | |
| download | llvm-0be0ab90684102d1bed40362b895579f346e0fc0.zip llvm-0be0ab90684102d1bed40362b895579f346e0fc0.tar.gz llvm-0be0ab90684102d1bed40362b895579f346e0fc0.tar.bz2 | |
[X86] SimplifyDemandedVectorEltsForTargetNode - add X86ISD::VPMADDUBSW handling
In general terms, this can reuse the X86ISD::VPMADDWD code (num src elts = 2 * num dst elts) and same zero behaviour.
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index f51a5e6..82d2b30 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -41764,6 +41764,7 @@ bool X86TargetLowering::SimplifyDemandedVectorEltsForTargetNode( KnownZero = LHSZero | RHSZero; break; } + case X86ISD::VPMADDUBSW: case X86ISD::VPMADDWD: { APInt LHSUndef, LHSZero; APInt RHSUndef, RHSZero; |