[SYCL] Fix addressspace cast for _alloca #6087
Merged
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This is a follow-up to PR#6050. The address space cast should use
element type and not change type. PR#6050 incorrectly changed
Type* to Type** (when adding the cast). This patch fixes the bug.
PR#6050 also added the cast for LLVM vector of pointer types. This
patch reverts the behavior for vector type to match old behavior (i.e.
unreachable), since it is unclear what the required behavior is in this
case and what the code which triggers unreachable would even look
like. We can modify the behavior in future if we hit that case in some
scenario.
This patch also adds an opaque pointer version of the test.
Signed-off-by: Elizabeth Andrews [email protected]