[PATCH] D108821: [Codegen][X86] EltsFromConsecutiveLoads(): if only have AVX1, ensure that the "load" is actually foldable (PR51615)

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

Err, wrong snippet. now this actually shows the problem:

  Combining: t16: v8i32 = vector_shuffle<0,u,u,u,0,u,u,u> t14, undef:v8i32
  Creating new node: t29: i32 = undef
  RepeatLoad:
  t8: i32 = truncate t7
    t7: i64 = extract_vector_elt t5, Constant:i64<0>
      t5: v2i64,ch = load<(load (s128) from %ir.arg)> t0, t2, undef:i64
        t2: i64,ch = CopyFromReg t0, Register:i64 %0
          t1: i64 = Register %0
        t4: i64 = undef
      t3: i64 = Constant<0>
  Combining: t15: v8i32 = undef


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