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| 1 | +// RUN: %target-build-swift %s -parse-stdlib -Xfrontend -disable-access-control -o %t.out |
| 2 | +// RUN: %target-codesign %t.out |
| 3 | +// RUN: %target-run %t.out |
| 4 | +// REQUIRES: executable_test |
| 5 | +// UNSUPPORTED: freestanding |
| 6 | + |
| 7 | +import Swift |
| 8 | +import StdlibUnittest |
| 9 | + |
| 10 | +var UnsafeRawPointerTestSuite = |
| 11 | + TestSuite("UnsafeRawPointerTestSuite") |
| 12 | + |
| 13 | +UnsafeRawPointerTestSuite.test("load.unaligned.SIMD") |
| 14 | +.skip(.custom({ |
| 15 | + if #available(SwiftStdlib 5.7, *) { return false } |
| 16 | + return true |
| 17 | +}, reason: "Requires Swift 5.7's stdlib")) |
| 18 | +.code { |
| 19 | + guard #available(SwiftStdlib 5.7, *) else { return } |
| 20 | + var bytes: [UInt8] = Array(0..<64) |
| 21 | + var offset = 3 |
| 22 | + let vector16 = bytes.withUnsafeBytes { buffer -> SIMD16<UInt8> in |
| 23 | + let aligned = buffer.baseAddress!.alignedUp(for: SIMD16<UInt8>.self) |
| 24 | + offset += buffer.baseAddress!.distance(to: aligned) |
| 25 | + return buffer.loadUnaligned(fromByteOffset: offset, as: SIMD16<UInt8>.self) |
| 26 | + } |
| 27 | + expectEqual(Int(vector16[0]), offset) |
| 28 | + var lastIndex = vector16.indices.last! |
| 29 | + expectEqual(Int(vector16[lastIndex]), offset+lastIndex) |
| 30 | + |
| 31 | + offset = 11 |
| 32 | + let vector32 = bytes.withUnsafeMutableBytes { buffer -> SIMD32<UInt8> in |
| 33 | + let aligned = buffer.baseAddress!.alignedUp(for: SIMD32<UInt8>.self) |
| 34 | + offset += buffer.baseAddress!.distance(to: aligned) |
| 35 | + return buffer.loadUnaligned(fromByteOffset: offset, as: SIMD32<UInt8>.self) |
| 36 | + } |
| 37 | + expectEqual(Int(vector32[0]), offset) |
| 38 | + lastIndex = vector32.indices.last! |
| 39 | + expectEqual(Int(vector32[lastIndex]), offset+lastIndex) |
| 40 | +} |
| 41 | + |
| 42 | +runAllTests() |
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