[LLVMbugs] [Bug 16741] New: ARM isel hits assert with simple program

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Mon Jul 29 16:26:38 PDT 2013


            Bug ID: 16741
           Summary: ARM isel hits assert with simple program
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: matt at pharr.org
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 10953
  --> http://llvm.org/bugs/attachment.cgi?id=10953&action=edit
test case

With top-of-tree and the attached 5 statement bitcode file, I'm hitting an
assert in ARM instruction selection:

% llc -mattr=+neon -mcpu=cortex-a15 bugpoint-reduced-simplified.ll
Assertion failed: ((!From->hasAnyUseOfValue(i) || From->getValueType(i) ==
To->getValueType(i)) && "Cannot use this version of ReplaceAllUsesWith!"),
function ReplaceAllUsesWith, file SelectionDAG.cpp, line 5574.

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