[llvm-bugs] [Bug 51699] New: LLVM 13 regression: x86_64 ran out of registers during register allocation with valgrind client request

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=51699

            Bug ID: 51699
           Summary: LLVM 13 regression: x86_64 ran out of registers during
                    register allocation with valgrind client request
           Product: new-bugs
           Version: trunk
          Hardware: All
                OS: All
            Status: NEW
          Severity: release blocker
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: andrew at ziglang.org
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org

Created attachment 25209
  --> https://bugs.llvm.org/attachment.cgi?id=25209&action=edit
test.ll

To reproduce:

clang-13 -c test.ll

It gives:

error: ran out of registers during register allocation

However it worked in LLVM 12. This inline assembly is used to form a Valgrind
Client Request.

This bug found via the Zig programming language behavior test suite in the
llvm13 branch.

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