[X86] Add atomic vector tests for >1 sizes. #120316
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Vector types on atomics are assumed to be invalid by the verifier. However, this type can be valid if it is lowered by codegen.
Scalarize vector of atomic load in SelectionDAG.
When lowering atomic vector types with floats, selection can fail since this pattern is unsupported. To support this, floats can be casted to an integer type of the same size.
Atomic vectors with size >1 are lowered to calls. Adding their tests separately here.
arsenm
reviewed
Dec 18, 2024
| ; CHECK0-NEXT: retq | ||
| %ret = load atomic <32 x half>, ptr %x acquire, align 4 | ||
| ret <32 x half> %ret | ||
| } |
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To repeat from the other thread, should also test a 1 x ptr, 1 x ptr addrspace(270), 1 x i8, 1 x i16 (plus with sext/zext of the results to <1 x i32/64>)
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The call lowering seems like an accident
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With #117625, #111414, and #118793, atomic vector loads can be lowered. Atomic vectors with size >1 are lowered to calls. Adding their tests separately here.