[llvm-bugs] [Bug 32324] New: [Polly] llvm.expect cannot be code generated

via llvm-bugs llvm-bugs at lists.llvm.org
Fri Mar 17 06:32:54 PDT 2017


            Bug ID: 32324
           Summary: [Polly] llvm.expect cannot be code generated
           Product: Polly
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Optimizer
          Assignee: polly-dev at googlegroups.com
          Reporter: tobias at grosser.es
                CC: llvm-bugs at lists.llvm.org

Created attachment 18120
  --> https://bugs.llvm.org/attachment.cgi?id=18120&action=edit
Test file

opt -polly-codegen /tmp/expect-causes-issues.ll -polly-process-unprofitable
WARNING: You're attempting to print out a bitcode file.
This is inadvisable as it may cause display problems. If
you REALLY want to taste LLVM bitcode first-hand, you
can force output with the `-f' option.

Instruction does not dominate all uses!
  %p_tmp3 = icmp ult i64 4, 12
  %0 = zext i1 %p_tmp3 to i64

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