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ff55e2e047
We would like to split the SP adjustment to reduce the instructions in
prologue and epilogue as the following case. In this way, the offset of
the callee saved register could fit in a single store.
add sp,sp,-2032
sw ra,2028(sp)
sw s0,2024(sp)
sw s1,2020(sp)
sw s3,2012(sp)
sw s4,2008(sp)
add sp,sp,-64
Differential Revision: https://reviews.llvm.org/D68011
llvm-svn: 373688
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