bf225939bc
- CUDA cannot associate memory space with pointer types. Even though Clang could add extra attributes to specify the address space explicitly on a pointer type, it breaks the portability between Clang and NVCC.
- This change proposes to assume the address space from a pointer from the assumption built upon target-specific address space predicates, such as `__isGlobal` from CUDA. E.g.,
```
foo(float *p) {
__builtin_assume(__isGlobal(p));
// From there, we could assume p is a global pointer instead of a
// generic one.
}
```
This makes the code portable without introducing the implementation-specific features.
Note that NVCC starts to support __builtin_assume from version 11.
Reviewed By: arsenm
Differential Revision: https://reviews.llvm.org/D112041
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| .. | ||
| address-space-id-funcs.ll | ||
| assumed-addrspace.ll | ||
| basic.ll | ||
| builtin-assumed-addrspace.ll | ||
| icmp.ll | ||
| infer-address-space.ll | ||
| infer-addrspacecast.ll | ||
| infer-getelementptr.ll | ||
| intrinsics.ll | ||
| lit.local.cfg | ||
| mem-intrinsics.ll | ||
| no-flat-addrspace.ll | ||
| noop-ptrint-pair.ll | ||
| old-pass-regressions-inseltpoison.ll | ||
| old-pass-regressions.ll | ||
| ptrmask.ll | ||
| redundant-addrspacecast.ll | ||
| select.ll | ||
| self-phi.ll | ||
| unreachable-code-assert.ll | ||
| volatile.ll | ||