[llvm-bugs] [Bug 39987] New: try-catch optimization

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Dec 12 21:45:55 PST 2018


            Bug ID: 39987
           Summary: try-catch optimization
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: trass3r at gmail.com
                CC: llvm-bugs at lists.llvm.org


int shouldBecomeReturn0()
    try {
        throw 0;
    } catch (int ex) {
        return ex;
    return 1;

$ clang -std=c++17 -O3 -fexceptions

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