[llvm-bugs] [Bug 47600] New: [SystemZ TTI] Assertion `getActiveBits() <= 64 && "Too many bits for uint64_t"' failed.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=47600

            Bug ID: 47600
           Summary: [SystemZ TTI] Assertion `getActiveBits() <= 64 && "Too
                    many bits for uint64_t"' failed.
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: SystemZ
          Assignee: unassignedbugs at nondot.org
          Reporter: paulsson at linux.vnet.ibm.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 23989
  --> https://bugs.llvm.org/attachment.cgi?id=23989&action=edit
reduced testcase

opt -mtriple=s390x-unknown-linux -mcpu=z13 -o out.opt.ll -O3
tc_SLP_toomanybits.ll

APInt.h:1632: uint64_t llvm::APInt::getZExtValue() const: Assertion
`getActiveBits() <= 64 && "Too many bits for uint64_t"' failed.

...
#9 0x000002aa1e47f574 llvm::SystemZTTIImpl::getCmpSelInstrCost()
...
#18 0x000002aa1fb9430e llvm::SLPVectorizerPass::runImpl)
...

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