[LLVMbugs] [Bug 11895] New: SimplifyLibCalls should be merged into instcombine

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Tue Jan 31 03:26:42 PST 2012


             Bug #: 11895
           Summary: SimplifyLibCalls should be merged into instcombine
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: clattner at apple.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Simplify libcalls was previously split out of instcombine so that it could be
turned off with -fno-builtin.  Now that we have TargetLibraryInfo around, we
don't need to do this.  Merging it into Instcombine's visitCall optimization
logic would eliminate some phase ordering problems that it can have, and is a
generally good cleanup anyway.

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