[LLVMbugs] [Bug 9867] New: Optimization introduces intrinsics and they are not lowered.

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Sat May 7 09:30:58 PDT 2011


           Summary: Optimization introduces intrinsics and they are not
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Common Code Generator Code
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: ofv at wanadoo.es
                CC: llvmbugs at cs.uiuc.edu

Starting with the attached file, execute this sequence of operations:

llvm-as code.llvm -o code.bc

opt -O2 code.bc -o code.opt.bc

llvm-dis code.opt.bc -o code.opt.llvm

code.opt.llvm contains a call to llvm.trap, which was not present on the
original code. I have more instances where intrinsics are introduced by
otpimization (not only llvm.trap).

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