[llvm-bugs] [Bug 45274] New: Assertion failed: (!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"), function ExpandLegalINT_TO_FP, file lib/CodeGen/Selection DAG/LegalizeDAG.cpp, line 2420.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=45274

            Bug ID: 45274
           Summary: Assertion failed: (!isSigned && "Legalize cannot
                    Expand SINT_TO_FP for i64 yet"), function
                    ExpandLegalINT_TO_FP, file lib/CodeGen/Selection
                    DAG/LegalizeDAG.cpp, line 2420.
           Product: libraries
           Version: 10.0
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Common Code Generator Code
          Assignee: unassignedbugs at nondot.org
          Reporter: pkubaj at anongoth.pl
                CC: llvm-bugs at lists.llvm.org

Created attachment 23271
  --> https://bugs.llvm.org/attachment.cgi?id=23271&action=edit
reproduction files

FreeBSD head on powerpc64 with LLVM 10 rc4.

Compiling emulators/mednafen port fails, this is a regression from 9.0.1:
Assertion failed: (!isSigned && "Legalize cannot Expand SINT_TO_FP for i64
yet"), function ExpandLegalINT_TO_FP, file
/usr/src/contrib/llvm-project/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp,
line 2420.
Stack dump:
0.      Program arguments: c++ -std=gnu++11 -fsigned-char
-DLOCALEDIR="/usr/local/share/locale" -DHAVE_CONFIG_H -I/usr/local/include/SDL2
-I/usr/local/include -D_REENTRANT -D_THREAD_SAFE -I../../include
-I../../include -I../../intl -I/usr/local/include -DLIBICONV_PLUG
-D_THREAD_SAFE -fno-fast-math -fno-unsafe-math-optimizations
-fomit-frame-pointer -fstrict-aliasing -Wall -Wshadow -Wempty-body
-Wignored-qualifiers -Wvla -Wvariadic-macros -Wdisabled-optimization
-Werror=write-strings -fno-pic -fno-pie -fno-PIC -fno-PIE -fwrapv -fjump-tables
-fexceptions -O2 -pipe -DLIBICONV_PLUG -fstack-protector-strong
-fno-strict-aliasing -DLIBICONV_PLUG -MT ers.o -MD -MP -MF .deps/ers.Tpo -c -o
ers.o ers.cpp
1.      <eof> parser at end of file
2.      Code generation
3.      Running pass 'Function Pass Manager' on module 'ers.cpp'.
4.      Running pass 'PowerPC DAG->DAG Pattern Instruction Selection' on
function '@_ZN14EmuRealSyncher10AddEmuTimeElb'

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