| commit | 7fc27db442426561348209b1e7301407ef38770d | |
| author | Craig Topper <craig.topper@intel.com> | |
| Tue, 15 Oct 2019 06:10:11 +0000 (15 06:10 +0000) | ||
| committer | Craig Topper <craig.topper@intel.com> | |
| Tue, 15 Oct 2019 06:10:11 +0000 (15 06:10 +0000) | ||
| tree | cb356b8539f1c8ec399a8e8856fdca4d1c2fd559 | treesnapshot (tar.gz zip) |
| parent | 17fd40d871a542f30acee2efe0a203f37fbc5797 | commitdiff |
[X86] Don't check for VBROADCAST_LOAD being a user of the source of a VBROADCAST when trying to share broadcasts.
The only things VBROADCAST_LOAD uses is an address and a chain
node. It has no vector inputs.
So if its a user of the source of another broadcast that could
only mean one of two things. The other broadcast is broadcasting
the address of the broadcast_load. Or the source is a load and
the use we're seeing is the chain result from that load. Neither
of these cases make sense to combine here.
This issue was reported post-commit r373871. Test case has not
been reduced yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@374862 91177308-0d34-0410-b5e6-96231b3b80d8
The only things VBROADCAST_LOAD uses is an address and a chain
node. It has no vector inputs.
So if its a user of the source of another broadcast that could
only mean one of two things. The other broadcast is broadcasting
the address of the broadcast_load. Or the source is a load and
the use we're seeing is the chain result from that load. Neither
of these cases make sense to combine here.
This issue was reported post-commit r373871. Test case has not
been reduced yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@374862 91177308-0d34-0410-b5e6-96231b3b80d8
| lib/Target/X86/X86ISelLowering.cpp | diffblobblamehistory |