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| author | Jonas Paulsson <paulsson@linux.vnet.ibm.com> | 2020-10-15 10:04:06 +0200 |
|---|---|---|
| committer | Jonas Paulsson <paulsson@linux.vnet.ibm.com> | 2020-10-21 14:38:59 +0200 |
| commit | 1606755da0e4fb362c88fdf02373f0dc3e4eef8f (patch) | |
| tree | 5d3557c34cdb0630c468d32a52901e3596569184 /llvm/lib/CodeGen/MachineFunction.cpp | |
| parent | 6a5c19dd3956b6fe4607c8dd00a550bf3ead25b0 (diff) | |
| download | llvm-1606755da0e4fb362c88fdf02373f0dc3e4eef8f.zip llvm-1606755da0e4fb362c88fdf02373f0dc3e4eef8f.tar.gz llvm-1606755da0e4fb362c88fdf02373f0dc3e4eef8f.tar.bz2 | |
[SystemZ] Mark unsaved argument R6 as live throughout function.
For historical reasons, the R6 register is a callee-saved argument
register. This means that if it is used to pass an argument to a function
that does not clobber it, it is live throughout the function.
This patch makes sure that in this special case any kill flags of it are
removed.
Review: Ulrich Weigand, Eli Friedman
Differential Revision: https://reviews.llvm.org/D89451
Diffstat (limited to 'llvm/lib/CodeGen/MachineFunction.cpp')
0 files changed, 0 insertions, 0 deletions