[llvm-bugs] [Bug 43060] New: wasm32-unknown-emscripten backend: PHINode should have one entry for each predecessor of its parent basic block!

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=43060

            Bug ID: 43060
           Summary: wasm32-unknown-emscripten backend: PHINode should have
                    one entry for each predecessor of its parent basic
                    block!
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: pmpp.pub at gmail.com
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org

Created attachment 22399
  --> https://bugs.llvm.org/attachment.cgi?id=22399&action=edit
main-ceb4bc.c main-ceb4bc.sh + diff of macro line generating crash

using clang-10 from CI of emscripten tip of tree with clang version 10.0.0
(/b/s/w/ir/cache/git/chromium.googlesource.com-external-github.com-llvm-llvm--project
edfaee08115376467d1c95573de991aebfdaeb42)

adding one more jump table causes:


PHINode should have one entry for each predecessor of its parent basic block!
  %setjmpTableSize998 = phi i32 [ %setjmpTableSize999, %indirectgoto ], [
%setjmpTableSize999, %indirectgoto ], [ %setjmpTableSize996, %while.end91 ]
in function main_loop_or_step
fatal error: error in backend: Broken function found, compilation aborted!
clang-10: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 10.0.0
(/b/s/w/ir/cache/git/chromium.googlesource.com-external-github.com-llvm-llvm--project
edfaee08115376467d1c95573de991aebfdaeb42)
Target: wasm32-unknown-emscripten
Thread model: posix
InstalledDir: /opt/sdk/emsdk-upstream/upstream/bin
clang-10: note: diagnostic msg: PLEASE submit a bug report to
https://bugs.llvm.org/ and include the crash backtrace, preprocessed source,
and associated run script.
clang-10: note: diagnostic msg: 
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-10: note: diagnostic msg: /tmp/main-39aafd.c
clang-10: note: diagnostic msg: /tmp/main-39aafd.sh
clang-10: note: diagnostic msg: 

********************

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