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annotate lib/Target/X86/README-UNIMPLEMENTED.txt @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 //===---------------------------------------------------------------------===//
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2 // Testcases that crash the X86 backend because they aren't implemented
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3 //===---------------------------------------------------------------------===//
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4
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5 These are cases we know the X86 backend doesn't handle. Patches are welcome
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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6 and appreciated, because no one has signed up to implemented these yet.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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7 Implementing these would allow elimination of the corresponding intrinsics,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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8 which would be great.
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9
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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10 1) vector shifts
95c75e76d11b LLVM 3.4
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11 2) vector comparisons
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12 3) vector fp<->int conversions: PR2683, PR2684, PR2685, PR2686, PR2688
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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13 4) bitcasts from vectors to scalars: PR2804
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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14 5) llvm.atomic.cmp.swap.i128.p0i128: PR3462