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Author SHA1 Message Date
Jakob Stoklund Olesen
b77ec7d264 Simplify LiveInterval::print(). 
Don't print out the register number and spill weight, making the TRI
argument unnecessary.

This allows callers to interpret the reg field. It can currently be a
virtual register, a physical register, a spill slot, or a register unit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158031 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 22:51:54 +00:00
Jakob Stoklund Olesen
34c6f98034 Add experimental support for register unit liveness. 
Instead of computing a live interval per physreg, LiveIntervals can
compute live intervals per register unit. This makes impossible the
confusing situation where aliasing registers could have overlapping live
intervals. It should also make fixed interferernce checking cheaper
since registers have fewer register units than aliases.

Live intervals for regunits are computed on demand, using MRI use-def
chains and the new LiveRangeCalc class. Only regunits live in to ABI
blocks are precomputed during LiveIntervals::runOnMachineFunction().

The regunit liveness computations don't depend on LiveVariables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158029 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 22:02:15 +00:00
Jakob Stoklund Olesen
4e53a40ea3 Implement LiveRangeCalc::extendToUses() and createDeadDefs(). 
These LiveRangeCalc methods are to be used when computing a live range
from scratch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158027 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 21:54:09 +00:00
Andrew Trick
d88d27868b MachineInstr::eraseFromParent fix for removing bundled instrs. 
Patch by Ivan Llopard.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158025 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 21:44:23 +00:00
Andrew Trick
b7e0289fb3 misched: API for minimum vs. expected latency. 
Minimum latency determines per-cycle scheduling groups.
Expected latency determines critical path and cost.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158021 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 21:11:27 +00:00
Benjamin Kramer
1d72dadddb Add 3.0 and 3.1 tags to the getting started guide. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158020 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 20:35:50 +00:00
Lang Hames
5afba6f00c Add a new intrinsic: llvm.fmuladd. This intrinsic represents a multiply-add 
expression (a * b + c) that can be implemented as a fused multiply-add (fma)
if the target determines that this will be more efficient. This intrinsic
will be used to implement FP_CONTRACT support and an aggressive FMA formation
mode.

If your target has a fast FMA instruction you should override the
isFMAFasterThanMulAndAdd method in TargetLowering to return true.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158014 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 19:07:46 +00:00
Yuan Lin
09b5df8996 Fix header file include order in NVPTX backend NV_CONTRIB 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158013 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 19:06:13 +00:00
Andrew Trick
1247376856 LoopUnroll: always check for NULL LoopPassManager 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158007 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 17:51:05 +00:00
Jakob Stoklund Olesen
9a314da581 Remove dead function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158005 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 17:19:07 +00:00
Roman Divacky
3e77af4318 PPC32 uses R2 as the TLS register. Fix the copy and paste. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158004 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 17:14:17 +00:00
Stepan Dyatkovskiy
5d59b0b38e IntegersSubsetMapping: added exclude operation, that allows to exclude subset of integers from current mapping. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157989 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 07:57:36 +00:00
Stepan Dyatkovskiy
20cb4919cd IntegersSubsetMapping: 
Changed type of Items collection: from std::vector to std::list.
Also some small fixes made in IntegersSubset.h, IntegersSubsetMapping.h and IntegersSubsetTest.cpp.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157987 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 07:43:08 +00:00
Andrew Trick
1d98530196 X86 itinerary properties. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157981 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 03:44:46 +00:00
Andrew Trick
f94f051cf5 ARM itinerary properties. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157980 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 03:44:43 +00:00
Andrew Trick
fc992996f7 misched: Added MultiIssueItineraries. 
This allows a subtarget to explicitly specify the issue width and
other properties without providing pipeline stage details for every
instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157979 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 03:44:40 +00:00
Andrew Trick
4eb4e5eb22 sdsched: Use the right heuristics when -mcpu is not provided and we have no itinerary. 
Use ILP heuristics for long latency instrs if no scoreboard exists.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157978 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 03:44:34 +00:00
Andrew Trick
d327d3dddd misched: Allow disabling scoreboard hazard checking for subtargets with a 
valid itinerary but no pipeline stages.

An itinerary can contain useful scheduling information without specifying pipeline stages for each instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157977 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 03:44:32 +00:00
Andrew Trick
d05b46115f whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157976 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 03:44:29 +00:00
Andrew Trick
76e9e838a1 misched: comments from code review. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157975 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 03:44:26 +00:00
Jakob Stoklund Olesen
afb32f7fb4 Remove the last remat-related code from LiveIntervalAnalysis. 
Rematerialization is handled by LiveRangeEdit now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157974 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 01:06:15 +00:00
Jakob Stoklund Olesen
3dfd59bdc3 Stop using LiveIntervals::isReMaterializable(). 
It is an old function that does a lot more than required by
CalcSpillWeights, which was the only remaining caller.

The isRematerializable() function never actually sets the isLoad
argument, so don't try to compute that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157973 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 01:06:12 +00:00
Joel Jones
e061053051 Revert commit r157966 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157972 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-05 00:47:21 +00:00
Joel Jones
dd52bf2ed8 This change handles a another case for generating the bic instruction 
when a compile time constant is known.  This occurs when implicitly zero 
extending function arguments from 16 bits to 32 bits.

<rdar://problem/11481151>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157966 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 23:38:57 +00:00
Jakob Stoklund Olesen
84423c8778 Delete dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157963 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 23:01:41 +00:00
Rafael Espindola
06c6791742 When gvn decides to replace an instruction with another, we have to patch the 
replacement to make it at least as generic as the instruction being replaced.
This includes:
* dropping nsw/nuw flags
* getting the least restrictive tbaa and fpmath metadata
* merging ranges

Fixes PR12979.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157958 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 22:44:21 +00:00
Jakob Stoklund Olesen
15f1d8c557 Switch LiveIntervals member variable to LLVM naming standards. 
No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157957 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 22:39:14 +00:00
Jakob Stoklund Olesen
631390e3c2 Pass context pointers to LiveRangeCalc::reset(). 
Remove the same pointers from all the other LiveRangeCalc functions,
simplifying the interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157941 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 18:21:16 +00:00
Akira Hatanaka
f0378f4381 Add a test case for mips64 unaligned load/store instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157939 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 17:57:06 +00:00
Akira Hatanaka
8c345b4567 Rename test/CodeGen/Mips/load-shift-left-right.ll. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157938 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 17:50:36 +00:00
Akira Hatanaka
94ccee2222 Fix a bug in MipsTargetLowering::LowerLOAD. A shift-right-logical node is 
inserted after the shift-left-logical node.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157937 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 17:46:29 +00:00
Roman Divacky
fd42ed676e Implement local-exec TLS on PowerPC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157935 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 17:36:38 +00:00
Hans Wennborg
70a07c7fc4 MIPS TLS: use the model selected by TargetMachine::getTLSModel(). 
This was mostly done already in r156162, but I missed one place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157929 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 14:02:08 +00:00
Nadav Rotem
fcb2c3cf5e Remove the "-promote-elements" flag. This flag is now enabled by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157925 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 11:27:21 +00:00
Hans Wennborg
d01d693c0b Better comments for TLS-related X86 MachineOperand flags. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157920 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 09:55:36 +00:00
Craig Topper
caea5e28b2 Add intrinsic forms for FMA instructions to opcode folding tables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157917 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 07:46:16 +00:00
Duncan Sands
a757a0d52a getAllOnesValue also works for vectors of integers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157915 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 07:18:12 +00:00
Craig Topper
fc5ab24493 Add VFMADDSUB and VFMSUBADD FMA instructions to folding tables. Also add 213 forms of scalar FMA instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157914 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 07:08:21 +00:00
Hal Finkel
77a9e0f318 Fix a copy-and-paste duplication error in the PPC 440 and A2 schedules (no functionality change). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157912 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 02:39:52 +00:00
Hal Finkel
77838f9ca9 Enable generating PPC pre-increment (r+imm) instructions by default. 
It seems that this no longer causes test suite failures on PPC64 (after r157159),
and often gives a performance benefit, so it can be enabled by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157911 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-04 02:21:00 +00:00
Rafael Espindola
761cb06756 Represent .rept as an anonymous macro. This removes the need for the ActiveRept 
vector. No functionality change.
Extracted from a patch by the PaX Team.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157909 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-03 23:57:14 +00:00
Rafael Espindola
28c1f666bf Add a typedef to simplify the code a bit. Not functionality change. 
Part of a patch by the PaX Team.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157908 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-03 22:41:23 +00:00
Craig Topper
a15f9d5311 Rename FMA3 feature flag to just FMA to match gcc so it can be added to clang. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157903 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-03 18:58:46 +00:00
Craig Topper
bb6e61cf6b Simplify the fma4 renaming code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157902 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-03 16:48:52 +00:00
NAKAMURA Takumi
13776d3fc8 IntRange: Restore the copy constuctor explicitly to appase buildbot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157901 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-03 15:42:12 +00:00
Craig Topper
7678de45b2 Autoupgrade support the rename of x86.fma4 intrinsics to x86.fma from r157898. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157899 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-03 08:07:25 +00:00
Craig Topper
529ce07c5f Rename fma4 intrinsics to just fma since they are now used for both FMA4 and FMA3. Autoupgrade support coming in a separate commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157898 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-03 07:26:46 +00:00
Manman Ren
c73ea9102b Revert r157831 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157896 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-03 03:14:24 +00:00
Craig Topper
57ae246a6a Use sse_load_f32/64 for scalar FMA3 intrinsic patterns instead of 128-bit loads to match instruction behavior. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157895 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-03 01:40:43 +00:00
Craig Topper
60dda38008 Add neverHasSideEffects and mayLoad to FMA3 instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157894 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-03 00:30:49 +00:00