[llvm-bugs] [Bug 30985] New: [X86] Replace _mm_stream_load_si128 with __builtin_nontemporal_store

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=30985

            Bug ID: 30985
           Summary: [X86] Replace _mm_stream_load_si128 with
                    __builtin_nontemporal_store
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: llvm-dev at redking.me.uk
                CC: craig.topper at gmail.com, llvm-bugs at lists.llvm.org,
                    zvi.rackover at intel.com
            Blocks: 30624
    Classification: Unclassified

The __builtin_ia32_movntdqa builtin should be replaced with a call to
__builtin_nontemporal_load

Similar for _mm256_stream_load_si256 (__builtin_ia32_movntdqa256) and
_mm512_stream_load_si512 (__builtin_ia32_movntdqa512).

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