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authorMatthias Braun <matze@braunis.de>2015-09-29 00:20:32 +0000
committerMatthias Braun <matze@braunis.de>2015-09-29 00:20:32 +0000
commit99ae16217ea46e277b6cdd4393a6feec35562677 (patch)
treecb29ae7d4f6e3a1d34b261261543d1dd34654e1a /llvm/lib
parent6163f67ad0a5d449eb93f31321f9a8d54e9f7aa8 (diff)
downloadbcm5719-llvm-99ae16217ea46e277b6cdd4393a6feec35562677.tar.gz
bcm5719-llvm-99ae16217ea46e277b6cdd4393a6feec35562677.zip
RegisterPressure: LiveRegSet tracks register units not physregs
There are always more physical registers and register units so the previous behaviour was correct but we can do with less memory. llvm-svn: 248767
Diffstat (limited to 'llvm/lib')
-rw-r--r--llvm/lib/CodeGen/RegisterPressure.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/RegisterPressure.cpp b/llvm/lib/CodeGen/RegisterPressure.cpp
index 237e465e906..5da683eb999 100644
--- a/llvm/lib/CodeGen/RegisterPressure.cpp
+++ b/llvm/lib/CodeGen/RegisterPressure.cpp
@@ -210,7 +210,7 @@ void RegPressureTracker::init(const MachineFunction *mf,
P.MaxSetPressure = CurrSetPressure;
- LiveRegs.PhysRegs.setUniverse(TRI->getNumRegs());
+ LiveRegs.PhysRegs.setUniverse(TRI->getNumRegUnits());
LiveRegs.VirtRegs.setUniverse(MRI->getNumVirtRegs());
if (TrackUntiedDefs)
UntiedDefs.setUniverse(MRI->getNumVirtRegs());
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