Chris Lattner
5874f82564
remove "Slot", it is dead
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26609 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-08 04:37:58 +00:00
Chris Lattner
b0d21ef20c
Change the interface for getting a target HazardRecognizer to be more clean.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26608 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-08 04:25:59 +00:00
Chris Lattner
b2d635803d
Fix some formatting, when looking for hazards, prefer target nodes over
...
things like copyfromreg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26586 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-07 05:40:43 +00:00
Chris Lattner
6af7ef8da8
update file comment
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26573 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-06 17:58:04 +00:00
Evan Cheng
adc5e5c85f
Remove some code that doesn't make sense
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26572 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-06 07:31:44 +00:00
Evan Cheng
6b36ce9202
Remove SUnit::Priority1: it is re-calculated on demand as number of live
...
range to be generated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26570 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-06 06:08:54 +00:00
Chris Lattner
03fc53c174
Hoist the HazardRecognizer out of the ScheduleDAGList.cpp file to where
...
targets can implement them. Make the top-down scheduler non-g5-specific.
Remove the old testing hazard recognizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26569 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-06 00:22:00 +00:00
Chris Lattner
67727308fa
Comment fixes
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26567 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 23:59:20 +00:00
Chris Lattner
a93dfcd40a
When a hazard recognizer needs noops to be inserted, do so. This represents
...
noops as null pointers in the instruction sequence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26564 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 23:51:47 +00:00
Chris Lattner
6cc3f0a774
Implement G5HazardRecognizer as a trivial thing that wants 5 cycles between
...
copyfromreg nodes. Clearly useful!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26559 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 23:13:56 +00:00
Chris Lattner
ad0f78ace2
Add basic hazard recognizer support. noop insertion isn't complete yet though.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26558 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 22:45:01 +00:00
Chris Lattner
a5de484bc7
Split the list scheduler into top-down and bottom-up pieces. The priority
...
function of the top-down scheduler are completely bogus currently, and
having (future) PPC specific in this file is also wrong, but this is a
small incremental step.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26552 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 21:10:33 +00:00
Chris Lattner
41f5ea0665
Move the available queue to being inside the ListSchedule method, since it
...
bounds its lifetime.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26550 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 20:21:55 +00:00
Evan Cheng
fb43331226
A bit more tweaking
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26500 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 06:23:43 +00:00
Jeff Cohen
d84525480a
Fix VC++ compilation errors.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26498 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 03:25:07 +00:00
Evan Cheng
86ec7d1d07
- Fixed some priority calculation bugs that were causing bug 478. Among them:
...
a predecessor appearing more than once in the operand list was counted as
multiple predecessor; priority1 should be updated during scheduling;
CycleBound was updated after the node is inserted into priority queue; one
of the tie breaking condition was flipped.
- Take into consideration of two address opcodes. If a predecessor is a def&use
operand, it should have a higher priority.
- Scheduler should also favor floaters, i.e. nodes that do not have real
predecessors such as MOV32ri.
- The scheduling fixes / tweaks fixed bug 478:
.text
.align 4
.globl _f
_f:
movl 4(%esp), %eax
movl 8(%esp), %ecx
movl %eax, %edx
imull %ecx, %edx
imull %eax, %eax
imull %ecx, %ecx
addl %eax, %ecx
leal (%ecx,%edx,2), %eax
ret
It is also a slight performance win (1% - 3%) for most tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26470 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-02 21:38:29 +00:00
Chris Lattner
1e8791d790
make -debug output less newliney
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25895 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-02 00:38:08 +00:00
Evan Cheng
cdf3838bf1
Clean up some code; improve efficiency; and fixed a potential bug involving
...
chain successors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25630 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-26 00:30:29 +00:00
Reid Spencer
2a8e6186e9
Don't break the optimized build (by incorrect placement of #endif)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25613 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25 21:49:13 +00:00
Jeff Cohen
44c687d0af
Fix VC++ compilation error.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25604 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25 17:17:49 +00:00
Evan Cheng
cd1419af1e
Bottom up register usage reducing list scheduler.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25601 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25 09:14:32 +00:00
Evan Cheng
f0f9c90204
Skeleton of the list schedule.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25544 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-23 08:26:10 +00:00