llvm-6502/lib/Target/X86/README-UNIMPLEMENTED.txt
Chris Lattner a354825650 add some notes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57631 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16 07:04:06 +00:00

15 lines
636 B
Plaintext

//===---------------------------------------------------------------------===//
// Testcases that crash the X86 backend because they aren't implemented
//===---------------------------------------------------------------------===//
These are cases we know the X86 backend doesn't handle. Patches are welcome
and appreciated, because no one has signed up to implemented these yet.
Implementing these would allow elimination of the corresponding intrinsics,
which would be great.
1) vector shifts
2) vector comparisons
3) vector fp<->int comparisons: PR2683, PR2684, PR2685, PR2686, PR2688
4) bitcasts from vectors to scalars: PR2804