[llvm-bugs] [Bug 31597] Crash/assert when using regalloc= with -O0

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=31597

Francis Visoiu Mistrih <francisvm at yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |francisvm at yahoo.com
         Resolution|---                         |FIXED

--- Comment #1 from Francis Visoiu Mistrih <francisvm at yahoo.com> ---
Now it errors out.

$ echo "define i32 @main() { ret i32 0 }" | ./build/bin/llc -O0
--regalloc=basic                                                      *[master]

LLVM ERROR: Must use fast (default) register allocator for unoptimized
regalloc.

$ echo "define i32 @main() { ret i32 0 }" | ./build/bin/llc -O0
--regalloc=greedy                                                     *[master]

LLVM ERROR: Must use fast (default) register allocator for unoptimized
regalloc.

$ echo "define i32 @main() { ret i32 0 }" | ./build/bin/llc -O0 --regalloc=pbqp
                                                      *[master]

LLVM ERROR: Must use fast (default) register allocator for unoptimized
regalloc.

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