[AMDGPU] Simplify GCNTTIImpl::isValidAddrSpaceCast. NFCI. (#137986)
This just removes some code that references specific address spaces.
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h
index 7ad6082..1ee4d73 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h
@@ -182,20 +182,8 @@
if (FromAS == ToAS)
return false;
- if (FromAS == AMDGPUAS::FLAT_ADDRESS)
- return AMDGPU::isExtendedGlobalAddrSpace(ToAS) ||
- ToAS == AMDGPUAS::LOCAL_ADDRESS ||
- ToAS == AMDGPUAS::PRIVATE_ADDRESS;
-
- if (AMDGPU::isExtendedGlobalAddrSpace(FromAS))
- return AMDGPU::isFlatGlobalAddrSpace(ToAS) ||
- ToAS == AMDGPUAS::CONSTANT_ADDRESS_32BIT;
-
- if (FromAS == AMDGPUAS::LOCAL_ADDRESS ||
- FromAS == AMDGPUAS::PRIVATE_ADDRESS)
- return ToAS == AMDGPUAS::FLAT_ADDRESS;
-
- return false;
+ // Casts between any aliasing address spaces are valid.
+ return AMDGPU::addrspacesMayAlias(FromAS, ToAS);
}
bool addrspacesMayAlias(unsigned AS0, unsigned AS1) const override {
