efriedma added a comment.
We probably want testcases for accessing various parts of the stack frame with
FP stored in r11; for example, can we correctly access arguments passed on the
stack if there's stack realignment?
================
Comment at: llvm/lib/Target/ARM/Thumb1FrameLowering.cpp:242
+ // Find last push instruction for GPRCS2 - spilling of high registers
+ // (r8-r11) could consist of multiple tPUSH and tMOVr instructions.
+ while (true) {
----------------
It seems sort of fragile to assume the entry block doesn't contain any tPUSH
instructions; we can use them in places other than the prologue. Can we use
the FrameSetup flag?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D125094/new/
https://reviews.llvm.org/D125094
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