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authorSimon Dardis <simon.dardis@mips.com>2017-11-02 12:47:22 +0000
committerSimon Dardis <simon.dardis@mips.com>2017-11-02 12:47:22 +0000
commit725acb2d91e4aa9fca1c97760c81f3443549626c (patch)
tree226433d9f13ac27a9f61784f3485485c3994b0e4 /lldb/packages/Python/lldbsuite/test/python_api/symbol-context/TestSymbolContext.py
parent0e142499a97a16c34b934aeb6ca186ae81a230e2 (diff)
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[mips] Use register scavenging with MSA.
MSA stores and loads to the stack are more likely to require an emergency GPR spill slot due to the smaller offsets available with those instructions. Handle this by overestimating the size of the stack by determining the largest offset presuming that all callee save registers are spilled and accounting of incoming arguments when determining whether an emergency spill slot is required. Reviewers: atanasyan Differential Revision: https://reviews.llvm.org/D39056 llvm-svn: 317204
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