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Various SIMD tests fail in optllvm on i386

The following SIMD-related tests fail in the optllvm way on i386 (observed on Alpine 3.20 with LLVM 17 but this likely applies to other platforms as well):

  • simd/should_run/simd009 with a compiler segfault; this test uses TemplateHaskell
  • simd/should_run/T25062_V16 with a runtime segfault; this test uses DoubleX2#
  • simd/should_run/T25169 with a runtime segfault; this test uses DoubleX2#
  • simd/should_run/T22187_run with an LLVM error
Edited by Ben Gamari
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