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(parent: 1ec43d2) | patch
ARM-Darwin: keep the frame register reserved even if not updated.
authorTim Northover <tnorthover@apple.com>
Fri, 4 Oct 2019 12:29:32 +0000 (12:29 +0000)
committerTim Northover <tnorthover@apple.com>
Fri, 4 Oct 2019 12:29:32 +0000 (12:29 +0000)
commitdc3e84b27df3f364c6efc3e4c80dc6ae08f7b654
tree79cd4bfa3a4d4f4e0d7ba197434cc603eededf51tree | snapshot
parent1ec43d2bfc9393ebcfb41bcf3ebf0b50393f844ecommit | diff
ARM-Darwin: keep the frame register reserved even if not updated.

Darwin platforms need the frame register to always point at a valid record even
if it's not updated in a leaf function. Backtraces are more important than one
extra GPR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@373738 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/ARM/ARMBaseRegisterInfo.cpp diff | blob | history
test/CodeGen/ARM/r7-fixed-darwin.ll [new file with mode: 0644] blob
test/CodeGen/Thumb/long.ll diff | blob | history
test/CodeGen/Thumb2/2010-03-15-AsmCCClobber.ll diff | blob | history
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