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8073 Commits

Author SHA1 Message Date
Jim Grosbach
29bed1c8bb The spill restore needs to be resolved to the SP/FP just like the spill 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84792 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-21 22:59:56 +00:00
Jim Grosbach
3325537682 Cleanup of frame index scavenging. Better code flow and more accurately 
handles T2 and ARM use cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84761 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-21 15:26:21 +00:00
Evan Cheng
5affca0763 Need a comma after imp-use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84749 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-21 07:56:02 +00:00
Dan Gohman
c1ae8c9b8f Revert r84658 and r84691. They were causing llvm-gcc bootstrap to fail. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84727 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-21 01:44:44 +00:00
David Goodwin
7441d14873 Respect src register allocation requirements when breaking anti-dependencies. Remove some dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84691 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-20 22:50:43 +00:00
Anton Korobeynikov
2bcf60a9cc Fix invalid for vector types fneg(bitconvert(x)) => bitconvert(x ^ sign) 
transform.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84683 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-20 21:37:45 +00:00
Lang Hames
3fd7a68ba9 Oops. Backing out 84681 - needs to wait for the indexing patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84682 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-20 21:28:22 +00:00
Lang Hames
67f25669db Added some debugging output to pre-alloc splitting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84681 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-20 21:25:13 +00:00
David Goodwin
480c529e02 Checkpoint more aggressive anti-dependency breaking for post-ra scheduler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84658 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-20 19:54:44 +00:00
Jim Grosbach
03d02d4faa Better handle instructions that re-def a scratch register 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84657 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-20 19:52:35 +00:00
Jim Grosbach
f7a0c0de6d Register re-use for scavenged frame indices must check for re-deginition 
of the register in the instruction which kills the scavenged value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84641 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-20 16:33:57 +00:00
Dan Gohman
07adb85cb7 Re-apply r84295, with fixes to how the loop "top" and "bottom" blocks are 
tracked. Instead of trying to manually keep track of these locations
while doing complex modifications, just recompute them when they're needed.
This fixes a bug in which the TopMBB and BotMBB were not correctly updated,
leading to invalid transformations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84598 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-20 04:50:37 +00:00
Evan Cheng
5f4fb86d58 Trim unnecessary includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84597 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-20 04:23:20 +00:00
Dan Gohman
81b16a3558 Add getTopBlock and getBottomBlock member functions to MachineLoopInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84596 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-20 04:16:37 +00:00
Evan Cheng
0222a8cfb8 If the physical register being spilled does not have an interval, spill its sub-registers instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84586 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-20 01:31:09 +00:00
Jim Grosbach
7e831db1d4 Enable post-pass frame index register scavenging for ARM and Thumb2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84585 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-20 01:26:58 +00:00
Jim Grosbach
d482f55af1 Adjust the scavenge register spilling to allow the target to choose an 
appropriate restore location for the spill as well as perform the actual
save and restore.

The Thumb1 target uses this to make sure R12 is not clobbered while a spilled
scavenger register is live there.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84554 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-19 22:27:30 +00:00
Anton Korobeynikov
766fc1db16 Revert r84295, this unbreaks llvm-gcc bootstrap on x86-64/linux 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84516 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-19 18:21:09 +00:00
Dan Gohman
dfffba6a83 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84504 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-19 14:56:05 +00:00
Dan Gohman
4e9785ed8a Change a few instance variables to be local variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84503 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-19 14:52:05 +00:00
Evan Cheng
38bdfc69cb Spill slots cannot alias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84432 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-18 19:58:47 +00:00
Evan Cheng
ff89dcb06f -Revert parts of 84326 and 84411. Distinquishing between fixed and non-fixed 
stack slots and giving them different PseudoSourceValue's did not fix the
problem of post-alloc scheduling miscompiling llvm itself.
- Apply Dan's conservative workaround by assuming any non fixed stack slots can
alias other memory locations. This means a load from spill slot #1 cannot 
move above a store of spill slot #2. 
- Enable post-alloc scheduling for x86 at optimization leverl Default and above.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84424 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-18 18:16:27 +00:00
Evan Cheng
20270c9093 Only fixed stack objects and spill slots should be get FixedStack PseudoSourceValue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84411 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-18 06:27:36 +00:00
Daniel Dunbar
c499e32b37 Fix my -Asserts warning fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84372 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-17 23:15:04 +00:00
Daniel Dunbar
afc1587800 Suppress -Asserts warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84327 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-17 09:33:00 +00:00
Evan Cheng
491f54f1fd Distinquish stack slots from other stack objects. They (and fixed objects) get FixedStack PseudoSourceValues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84326 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-17 09:20:14 +00:00
Evan Cheng
6553155172 Revert 84315 for now. Re-thinking the patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84321 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-17 07:53:04 +00:00
Evan Cheng
bf125583f8 Rename getFixedStack to getStackObject. The stack objects represented are not 
necessarily fixed. Only those will negative frame indices are "fixed."


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84315 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-17 06:22:26 +00:00
Evan Cheng
cac25a9452 80 col violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84311 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-17 06:05:11 +00:00
Dan Gohman
f77fc92b03 Delete an obsolete comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84300 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-17 01:37:38 +00:00
Victor Hernandez
a276c603b8 Remove MallocInst from LLVM Instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84299 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-17 01:18:07 +00:00
Dan Gohman
3bdd8de280 Enhance CodePlacementOpt's unconditional intra-loop branch elimination logic 
to be more general and understand more varieties of loops.

Teach CodePlacementOpt to reorganize the basic blocks of a loop so that
they are contiguous. This also includes a fair amount of logic for preserving
fall-through edges while doing so. This fixes a BranchFolding-ism where blocks
which can't be made to use a fall-through edge and don't conveniently fit
anywhere nearby get tossed out to the end of the function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84295 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-17 00:32:43 +00:00
Mon P Wang
3b7ee20d58 Allow widening of extract subvector 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84279 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-16 22:05:48 +00:00
Devang Patel
808b82664f Do not emit name entry for a pointer type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84276 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-16 21:27:43 +00:00
Evan Cheng
fa16354e03 Change createPostRAScheduler so it can be turned off at llc -O1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84273 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-16 21:06:15 +00:00
Devang Patel
149aa7cce3 If there is not any llvm instruction associated with each lexical scope encoded in debug info then create such scope on demand for variable info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84262 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-16 18:18:03 +00:00
Evan Cheng
c83da2f9e3 If post-alloc scheduler is not enabled, it should return false, not true. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84248 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-16 06:10:34 +00:00
Zhongxing Xu
931424a7d8 Indent code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84247 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-16 05:42:28 +00:00
Evan Cheng
449c25baa0 80 column violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84244 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-16 05:18:39 +00:00
Jakob Stoklund Olesen
11ee508d7b Report errors correctly for unselected target intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84193 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-15 18:50:03 +00:00
Dan Gohman
cd2ae14ce3 Make CodePlacementOpt align loops, rather than loop headers. The 
header is just the entry block to the loop, and it needn't be at
the top of the loop in the code layout.

Remove the code that suppressed loop alignment for outer loops,
so that outer loops are aligned.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84158 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-15 00:36:22 +00:00
Evan Cheng
a2f8047134 When LiveVariables is adding implicit-def to model "partial dead", add the earlyclobber marker if the superreg def has it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84153 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-14 23:39:27 +00:00
Evan Cheng
0789707c49 Print earlyclobber for implicit-defs as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84152 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-14 23:37:31 +00:00
Jim Grosbach
33524c3b26 Make loop not recalc getNumOperands() each time around 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84138 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-14 21:22:39 +00:00
Devang Patel
c90aefe95e Add support to record DbgScope as inlined scope. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84134 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-14 21:08:09 +00:00
Jim Grosbach
d0c3832754 quiet compiler warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84133 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-14 21:07:11 +00:00
Duncan Sands
b01bbdcc1a I don't see any point in having both eh.selector.i32 and eh.selector.i64, 
so get rid of eh.selector.i64 and rename eh.selector.i32 to eh.selector.
Likewise for eh.typeid.for.  This aligns us with gcc, which always uses a
32 bit value for the selector on all platforms.  My understanding is that
the register allocator used to assert if the selector intrinsic size didn't
match the pointer size, and this was the reason for introducing the two
variants.  However my testing shows that this is no longer the case (I
fixed some bugs in selector lowering yesterday, and some more today in the
fastisel path; these might have caused the original problems).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84106 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-14 16:11:37 +00:00
Dan Gohman
9ba0e2ba87 This remat entry is basically done. There are hooks to allow targets 
to remat non-load instructions as loads, and the remat code now uses
the UnmodeledSideEffects flags, MachineMemOperands, and similar things
to decide which instructions are valid for rematerialization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84060 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-14 00:02:01 +00:00
Dan Gohman
363bbc0110 Add a few README.txt items. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84059 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 23:58:05 +00:00
Devang Patel
1619dc3b9e s/DebugLoc.CompileUnit/DebugLoc.Scope/g 
s/DebugLoc.InlinedLoc/DebugLoc.InlinedAtLoc/g



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84054 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-13 23:28:53 +00:00