[LLVMbugs] [Bug 8193] New: LLVM lacks host-independent folding for floating-point library routines

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=8193

           Summary: LLVM lacks host-independent folding for floating-point
                    library routines
           Product: libraries
           Version: trunk
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Support Libraries
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: gohman at apple.com
                CC: llvmbugs at cs.uiuc.edu


LLVM does constant folding for library routines such as sin, cos, etc. using
the host libm.  This means its results can vary across hosts, and it means that
optimization (which could lead to a particular call being folded, or not) can
affect program behavior.

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