[llvm-bugs] [Bug 45748] Bad optimization of reverse-initialization of 128-bit vector with 64-bit vectors
via llvm-bugs
llvm-bugs at lists.llvm.org
Sun May 10 09:07:44 PDT 2020
https://bugs.llvm.org/show_bug.cgi?id=45748
Sanjay Patel <spatel+llvm at rotateright.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #5 from Sanjay Patel <spatel+llvm at rotateright.com> ---
The IR is improved with:
https://reviews.llvm.org/rG856cc60bc1ad
And the backend now produces:
movlhps %xmm1, %xmm0 ## xmm0 = xmm0[0],xmm1[0]
I'm assuming that meets the goal for this bug report; reopen if that's not
correct.
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