[llvm-bugs] [Bug 32559] New: [X86] sqrtf called with -fmath-errno and -fno-builtin-sqrtf results in 2 calls to sqrtf

[via llvm-bugs]

http://bugs.llvm.org/show_bug.cgi?id=32559

            Bug ID: 32559
           Summary: [X86] sqrtf called with -fmath-errno and
                    -fno-builtin-sqrtf results in 2 calls to sqrtf
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: craig.topper at gmail.com
                CC: llvm-bugs at lists.llvm.org

This test case generates two calls to sqrtf

https://godbolt.org/g/oEcpJE



Weirder still with -fno-math-errno and -fno-builtin-sqrtf we still get two
calls as if we were trying to update errno

https://godbolt.org/g/BgLTF5

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