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Matt Arsenault
69f311674c
AMDGPU: Expand frame indexes to be relative to scratch wave offset
In order for an arbitrary callee to access an object in a caller's stack frame, the 32-bit offset used as the private pointer needs to be relative to the kernel's scratch wave offset register. Convert to this by finding the difference from the current stack frame and scaling by the wavefront size. llvm-svn: 303303
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