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| author | Matthias Braun <matze@braunis.de> | 2016-08-18 19:47:59 +0000 |
|---|---|---|
| committer | Matthias Braun <matze@braunis.de> | 2016-08-18 19:47:59 +0000 |
| commit | 075d0c23d5885d926a3497bd3504df1d81f04270 (patch) | |
| tree | 04a1d26fe9e2675ee3ea0f58e51e823ab8ba7cf4 /clang/lib/CodeGen/CGExprComplex.cpp | |
| parent | 85d0f3140a0714818093089da991776f115dfa0e (diff) | |
| download | bcm5719-llvm-075d0c23d5885d926a3497bd3504df1d81f04270.tar.gz bcm5719-llvm-075d0c23d5885d926a3497bd3504df1d81f04270.zip | |
RegScavenging: Add scavengeRegisterBackwards()
Re-apply r276044 with off-by-1 instruction fix for the reload placement.
This is a variant of scavengeRegister() that works for
enterBasicBlockEnd()/backward(). The benefit of the backward mode is
that it is not affected by incomplete kill flags.
This patch also changes
PrologEpilogInserter::doScavengeFrameVirtualRegs() to use the register
scavenger in backwards mode.
Differential Revision: http://reviews.llvm.org/D21885
llvm-svn: 279124
Diffstat (limited to 'clang/lib/CodeGen/CGExprComplex.cpp')
0 files changed, 0 insertions, 0 deletions
