[llvm-bugs] [Bug 28175] AVX512F lowers zext from i1 to i64 through a k-mask

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=28175

Zvi Rackover <zvi.rackover at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |---

--- Comment #6 from Zvi Rackover <zvi.rackover at intel.com> ---
Please disregard my last comment. Should be:

After commit 281302 the generated code is slightly improved. 
However, the main issue of redundant copies thru k-regs remains:

        testl   %esi, %esi
        je      .LBB0_1
# BB#2:                                 # %if.then
        jmp     _Z3barv                 # TAILCALL
.LBB0_1:                                # %return
        kmovw   %edi, %k0
        kmovw   %k0, %eax
        andq    $1, %rax
        retq

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20160928/36ae7f49/attachment.html>