Add an experimental buffer fat pointer address space that is currently
unhandled in the backend. This commit reserves address space 7 as a
non-integral pointer repsenting the 160-bit fat pointer (128-bit buffer
descriptor + 32-bit offset) that is heavily used in graphics workloads
using the AMDGPU backend.
Differential Revision: https://reviews.llvm.org/D58957
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@356373 91177308-0d34-0410-b5e6-96231b3b80d8
This allows testing AMDGPU alias analysis like any
other alias analysis pass. This fixes the existing
test pointlessly running opt -O3 when it really
just wants to run the one analysis.
Before there was no way to test this using -aa-eval
with opt, since the default constructed pass
is run. The wrapper subclass allows the
default constructor to pass the necessary callback.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@346353 91177308-0d34-0410-b5e6-96231b3b80d8
We should never abort on valid IR. The most reasonable
interpretation of an arbitrary address space pointer is
probably some kind of special subset of global memory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@341894 91177308-0d34-0410-b5e6-96231b3b80d8
32-bit constant address space is declared as 6, so the
maximum number of address spaces is 6, not 5.
Fixes "LLVM ERROR: Pointer address space out of range".
v5: rename MAX_COMMON_ADDRESS to MAX_AMDGPU_ADDRESS
v4: - fix compilation issues
- fix out of bounds access
v3: use static_assert()
v2: add a very simple test for 32-bit addr space
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106630
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@340417 91177308-0d34-0410-b5e6-96231b3b80d8
Constant and global may alias, also one rules table wasn't
ordered correctly.
Pinpointed by Matt.
v2: add a test with swapped parameters
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@340416 91177308-0d34-0410-b5e6-96231b3b80d8
Neil Henning