[Lldb-commits] [PATCH] D32813: ABISysV_arm64: compute return value for large vectors correctly

[Pavel Labath via Phabricator via lldb-commits]

labath created this revision.
Herald added subscribers: srhines, rengolin, aemerson.

Arm64 Procedure Call Standard specifies than only vectors up to 16 bytes
are stored in v0 (which makes sense, as that's the size of the
register). 32-byte vector types are passed as regular structs via x8
pointer. Treat them as such.

This fixes TestReturnValue for arm64-clang. I also split the test case
into two so I can avoid the if(gcc) line, and annotate each test
instead. (It seems the vector type tests fail with gcc only when
targetting x86 arches).


https://reviews.llvm.org/D32813

Files:
  packages/Python/lldbsuite/test/functionalities/return-value/TestReturnValue.py
  source/Plugins/ABI/SysV-arm64/ABISysV_arm64.cpp

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