[llvm-bugs] [Bug 24820] New: LLVM Generates abysmal code in simple situation

via llvm-bugs llvm-bugs at lists.llvm.org
Tue Sep 15 03:26:27 PDT 2015


https://llvm.org/bugs/show_bug.cgi?id=24820

            Bug ID: 24820
           Summary: LLVM Generates abysmal code in simple situation
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: AArch64
          Assignee: unassignedbugs at nondot.org
          Reporter: Sonicadvance1 at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

In the instance of generating code that does a simple '<2xFloat> =
SIToFP(bswap(<2xShort>))' it generates absolutely terrible code as seen in this
hastebin result. http://hastebin.com/gumabupala.pas

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