Commits · 929d1d1ca1d4c60ae4eef79af871c8efdc54bf55 · Roger Ferrer / llvm-epi-0.8

Jan 13, 2004
- Remove allocatable registers vector. It is already provided by · 1a01c80f
  Alkis Evlogimenos authored Jan 13, 2004
```
LiveVariables.

llvm-svn: 10830
```
  1a01c80f
Dec 28, 2003

Add coalescing to register allocator. A hint is added to each interval · 43b587d9

Alkis Evlogimenos authored Dec 28, 2003

which denotes the register we would like to be assigned to (virtual or
physical). In register allocation, if this hint exists and we can map
it to a physical register (it is either a physical register or it is a
virtual register that already got assigned to a physical one) we use
that register if it is available instead of a random one in the free
pool.

llvm-svn: 10634

43b587d9

Dec 21, 2003
- Change weight into a float so that we can take into account the · 2665d9c6
  Alkis Evlogimenos authored Dec 21, 2003
```
nesting level when computing it. Right now the allocator uses:

    w = sum_over_defs_uses( 10 ^ nesting level );

llvm-svn: 10569
```
  2665d9c6
- Add support for inactive intervals. This effectively reuses registers · c09b77ea
  Alkis Evlogimenos authored Dec 21, 2003
```
for live ranges that fall into assigned registers' holes.

llvm-svn: 10566
```
  c09b77ea
Dec 18, 2003
- Rename LiveIntervals::expired() to LiveIntervals::expiredAt(). · 4d872194
  Alkis Evlogimenos authored Dec 18, 2003
```
llvm-svn: 10511
```
  4d872194
- Handle multiple virtual register definitions gracefully. · 40874c70
  Alkis Evlogimenos authored Dec 18, 2003
```
Move some of the longer LiveIntervals::Interval method out of the
header and add debug information to them. Fix bug and simplify range
merging code.

llvm-svn: 10509
```
  40874c70
Dec 05, 2003
- Move operator<<(std::ostream&, const LiveInterval&) out of the header file. · 2de099e5
  Alkis Evlogimenos authored Dec 05, 2003
```
llvm-svn: 10290
```
  2de099e5
Nov 20, 2003

Merging the linear scan register allocator in trunk. It currently passes most... · 0e9ded74

Alkis Evlogimenos authored Nov 20, 2003

Merging the linear scan register allocator in trunk. It currently passes most tests under test/Programs/SingleSource/Benchmarks/Shootout so development will continue on trunk. The allocator is not enabled by default. You will need to pass -regallo=linearscan to lli or llc to use it.

llvm-svn: 10103

0e9ded74