xref: /aosp_15_r20/external/llvm/lib/Target/X86/README-UNIMPLEMENTED.txt (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker//===---------------------------------------------------------------------===//
2*9880d681SAndroid Build Coastguard Worker// Testcases that crash the X86 backend because they aren't implemented
3*9880d681SAndroid Build Coastguard Worker//===---------------------------------------------------------------------===//
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard WorkerThese are cases we know the X86 backend doesn't handle.  Patches are welcome
6*9880d681SAndroid Build Coastguard Workerand appreciated, because no one has signed up to implemented these yet.
7*9880d681SAndroid Build Coastguard WorkerImplementing these would allow elimination of the corresponding intrinsics,
8*9880d681SAndroid Build Coastguard Workerwhich would be great.
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Worker1) vector shifts
11*9880d681SAndroid Build Coastguard Worker2) vector comparisons
12*9880d681SAndroid Build Coastguard Worker3) vector fp<->int conversions: PR2683, PR2684, PR2685, PR2686, PR2688
13*9880d681SAndroid Build Coastguard Worker4) bitcasts from vectors to scalars: PR2804
14*9880d681SAndroid Build Coastguard Worker5) llvm.atomic.cmp.swap.i128.p0i128: PR3462
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