Commit message (Collapse) | Author | Age | Files | Lines | ||
---|---|---|---|---|---|---|
... | ||||||
* | Add argument TargetRegisterInfo to loadRegFromStackSlot and storeRegToStackSlot. | Evan Cheng | 2010-05-06 | 1 | -2/+2 | |
| | | | | llvm-svn: 103193 | |||||
* | Run LiveVariables instead of computing liveness locally in -regalloc=fast. | Jakob Stoklund Olesen | 2010-04-21 | 1 | -177/+2 | |
| | | | | | | | | | | | This actually makes everything slower, but the plan is to have isel add <kill> flags the way it is already adding <dead> flags. Then LiveVariables can be removed again. When ignoring the time spent in LiveVariables, -regalloc=fast is now twice as fast as -regalloc=local. llvm-svn: 102034 | |||||
* | Add fast register allocator, enabled with -regalloc=fast. | Jakob Stoklund Olesen | 2010-04-21 | 1 | -0/+1107 | |
So far this is just a clone of -regalloc=local that has been lobotomized to run 25% faster. It drops the least-recently-used calculations, and is just plain stupid when it runs out of registers. The plan is to make this go even faster for -O0 by taking advantage of the short live intervals in unoptimized code. It should not be necessary to calculate liveness when most virtual registers are killed 2-3 instructions after they are born. llvm-svn: 102006 |