Jakob Stoklund Olesen
92e6939d29
Don't accidentally leave small gaps in the live ranges when leaving the active
...
interval after an instruction. The leaveIntvAfter() method only adds liveness
from the instruction's boundary index to the inserted copy.
Ideally, SplitKit should be smarter about this, perhaps by combining useIntv()
and leaveIntvAfter() into one method that guarantees continuity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123858 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 23:14:56 +00:00
Jim Grosbach
4121e8a0bd
Make sure to propogate the error code when we fail to parse a modifier.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123857 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 23:06:07 +00:00
Devang Patel
dacde944bd
Fix register address expression. Patch by Ken Dyck.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123856 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 23:04:47 +00:00
Jakob Stoklund Olesen
ccdb3fcef9
Implement RAGreedy::splitAroundRegion and remove loop splitting.
...
Region splitting includes loop splitting as a subset, and it is more generic.
The splitting heuristics for variables that are live in more than one block are
now:
1. Try to create a region that covers multiple basic blocks.
2. Try to create a new live range for each block with multiple uses.
3. Spill.
Steps 2 and 3 are similar to what the standard spiller is doing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123853 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 22:11:48 +00:00
Nick Lewycky
5c6fc1cab7
Similarly, analyze truncate through multiply.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123842 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 18:56:00 +00:00
Nick Lewycky
30aa8b13c9
Add a missed SCEV fold that is required to continue analyzing the IR produced
...
by indvars through the scev expander.
trunc(add x, y) --> add(trunc x, y). Currently SCEV largely folds the other way
which is probably wrong, but preserved to minimize churn. Instcombine doesn't
do this fold either, demonstrating a missed optz'n opportunity on code doing
add+trunc+add.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123838 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 16:59:46 +00:00
Bruno Cardoso Lopes
3abd75bf1d
Fix the encoding of mrrc and mcrr family of instructions. Also add testcases for mcr and mrc
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123837 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 16:56:52 +00:00
Rafael Espindola
c4440e3e30
Add unnamed_addr when we can show that address of a global is not used.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123834 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 16:32:21 +00:00
Nick Lewycky
73f565e754
Add a missing SCEV simplification sext(zext x) --> zext x.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123832 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 15:56:12 +00:00
Daniel Dunbar
ec91d52a77
ARM/ISel: Factor out isScaledConstantInRange() helper.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123823 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 15:12:16 +00:00
Andrew Trick
32cec0a756
For ARM subtargets with useNEONForSinglePrecisionFP, double count uses
...
of the floating point types less than 64-bits. It's somewhat of a temporary
hack but forces more accurate modeling of register pressure and results
in fewer spills.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123811 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 02:35:27 +00:00
Andrew Trick
7fa75ce11d
whitespace
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123810 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 02:26:13 +00:00
Evan Cheng
fc8475bde9
Don't forget to emit the load from indirect symbol when using movw + movt to materialize GA indirect symbols.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123809 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-19 02:16:49 +00:00
Bruno Cardoso Lopes
61505907f5
Create two new generic classes to represent the following VMRS/VMSR variations:
...
vmrs reg, fpexc
vmrs reg, fpsid
vmsr fpexc, reg
vmsr fpsid, reg
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123783 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 21:58:20 +00:00
Bruno Cardoso Lopes
e7255a80e3
Fix MRS encoding for arm and thumb.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123778 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 21:31:35 +00:00
Bruno Cardoso Lopes
892fc6d7b6
Fix the encoding of t2ISB by using the right class and also parse it correctly
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123776 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 21:17:09 +00:00
Dan Gohman
615da1a9bc
Teach BasicAA to return PartialAlias in cases where both pointers
...
are pointing to the same object, one pointer is accessing the entire
object, and the other is access has a non-zero size. This prevents
TBAA from kicking in and saying NoAlias in such cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123775 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 21:16:06 +00:00
Jakob Stoklund Olesen
b5fa933343
Add RAGreedy methods for splitting live ranges around regions.
...
Analyze the live range's behavior entering and leaving basic blocks. Compute an
interference pattern for each allocation candidate, and use SpillPlacement to
find an optimal region where that register can be live.
This code is still not enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123774 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 21:13:27 +00:00
Bruno Cardoso Lopes
fdcee77887
Follow the current hack set and enable the correct parsing of bkpt while in thumb mode.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123772 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 20:55:11 +00:00
Chris Lattner
435b4d2eba
fix rdar://8878965, a regression I introduced with the recent
...
llvm.objectsize changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123771 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 20:53:04 +00:00
Bruno Cardoso Lopes
a461d42228
Add support for parsing and encoding ARM's official syntax for the BFI instruction
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123770 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 20:45:56 +00:00
Jim Grosbach
ff12a8bd99
Add a FIXME.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123769 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 19:59:19 +00:00
Bruno Cardoso Lopes
fb67faa661
Ensure Mips::GP is properly reloaded after a function call. Patch by Sasa Stankovic
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123768 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 19:50:18 +00:00
Bruno Cardoso Lopes
6b9028251c
Negative zero is not legal on mips. Patch by Sasa Stankovic
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123766 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 19:41:41 +00:00
Bruno Cardoso Lopes
b1fce0a016
Handle (i32,i32) => f64 in a cleaner way. Patch by Sasa Stankovic
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123763 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 19:38:25 +00:00
Bruno Cardoso Lopes
8be7611245
Add support for mips32 madd and msub instructions. Patch by Akira Hatanaka
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123760 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 19:29:17 +00:00
Duncan Sands
b2f3c383ec
For completeness, generalize the (X + Y) - Y -> X transform and add X - (X + 1) -> -1.
...
These were not recommended by my auto-simplifier since they don't fire often enough.
However they do fire from time to time, for example they remove one subtraction from
the final bitcode for 483.xalancbmk.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123755 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 11:50:19 +00:00
Duncan Sands
fe02c69f84
Simplify (X<<1)-X into X. According to my auto-simplier this is the most common missed
...
simplification in fully optimized code. It occurs sporadically in the testsuite, and
many times in 403.gcc: the final bitcode has 131 fewer subtractions after this change.
The reason that the multiplies are not eliminated is the same reason that instcombine
did not catch this: they are used by other instructions (instcombine catches this with
a more general transform which in general is only profitable if the operands have only
one use).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123754 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 09:24:58 +00:00
Chris Lattner
908d8e82b5
add a note
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123752 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 07:47:48 +00:00
Venkatraman Govindaraju
687ae9606b
SPARC backend: Modified LowerCall and LowerFormalArguments so that they use CallingConv assignments.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123749 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 06:09:55 +00:00
Cameron Zwarich
f889b3bd6c
Remove an unnecessary #include.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123748 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 06:07:18 +00:00
Cameron Zwarich
4676599e30
Move DominanceFrontier from VMCore to Analysis.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123747 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 06:06:27 +00:00
Daniel Dunbar
4b462672d2
McARM: Use accessors where appropriate.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123746 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 05:55:27 +00:00
Daniel Dunbar
6ec56204f3
McARM: Fill in ASMOperand::dump() for memory operands.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123745 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 05:55:21 +00:00
Daniel Dunbar
2637dc9a25
McARM: Make ARMOperand use a union where appropriate.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123744 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 05:55:15 +00:00
Cameron Zwarich
5d2cf40c40
There is no point in verifying an analysis that is never updated.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123743 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 05:44:04 +00:00
Daniel Dunbar
05d8b71424
McARM: Unify ParseMemory() successfull return.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123740 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 05:34:24 +00:00
Daniel Dunbar
0571093f4c
McARM: Early exit on failure (NEFC).
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123739 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 05:34:17 +00:00
Daniel Dunbar
d3df5f32c0
McARM: Always keep an offset expression, if used (instead of assuming == 0 if used but not present), and simplify logic.
...
Also, clean up various non-sensicalisms in isMemModeRegThumb() and isMemModeImmThumb().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123738 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 05:34:11 +00:00
Daniel Dunbar
023835d51b
McARM: Add a variety of asserts on the sanity of memory operands.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123737 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 05:34:05 +00:00
Daniel Dunbar
81f453c4b9
McARM: Use a consistent marker for not-set OffsetRegNum.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123736 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 05:33:57 +00:00
Cameron Zwarich
59f5319719
Convert a std::map to a DenseMap for another 1.7% speedup on -scalarrepl.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123732 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 04:50:38 +00:00
Cameron Zwarich
443997de8b
Make a std::vector a SmallVector<*, 32> like the other vectors in the same
...
function. This seems to be about a 1.5% speedup of -scalarrepl on test-suite
with SPEC2000 and SPEC2006.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123731 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 04:41:32 +00:00
Rafael Espindola
daad56a8e3
Reduce indentation and remove commented out code.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123729 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 04:36:06 +00:00
Cameron Zwarich
72d1695f12
Remove some now-unused DominanceFrontier methods.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123726 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 04:21:57 +00:00
Cameron Zwarich
301278719b
Remove code for updating dominance frontiers and some outdated references to
...
dominance and post-dominance frontiers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123725 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 04:11:31 +00:00
Cameron Zwarich
b1686c32fc
Remove outdated references to dominance frontiers.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123724 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 03:53:26 +00:00
Daniel Dunbar
2e3cea3153
McARM: Start marking T2 address operands as such, for the benefit of the parser.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123722 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 03:06:03 +00:00
Daniel Dunbar
f4fb66acae
Support/CommandLine: Add "Did you mean" print for mismatched operands.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123717 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 01:59:24 +00:00
Eric Christopher
cdfe3c359b
The stub routine that we're calling uses test and so clobbers
...
the flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123712 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 01:37:20 +00:00