[llvm-bugs] [Bug 44496] New: [SystemZ] Bad machine code: Expected a register operand

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Jan 8 20:05:37 PST 2020


https://bugs.llvm.org/show_bug.cgi?id=44496

            Bug ID: 44496
           Summary: [SystemZ]  Bad machine code: Expected a register
                    operand
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          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 23001
  --> https://bugs.llvm.org/attachment.cgi?id=23001&action=edit
reduced testcase

llc -O3 -mcpu=z15 ./tc_exptectedreg_nxgrk.ll -verify-misched -o -

*** Bad machine code: Expected a register operand. ***
- function:    main
- basic block: %bb.1 bb1 (0x2aa410c5488) [80B;336B)
- instruction: 176B     %6:gr64bit = NXGRK %1:gr64bit, -4210509929515057152,
implicit-def dead $cc
- operand 2:   -4210509929515057152
LLVM ERROR: Found 1 machine code errors.

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