05fb9637f6
The Indexes Patch.
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This introduces a new pass, SlotIndexes, which is responsible for numbering
instructions for register allocation (and other clients). SlotIndexes numbering
is designed to match the existing scheme, so this patch should not cause any
changes in the generated code.
For consistency, and to avoid naming confusion, LiveIndex has been renamed
SlotIndex.
The processImplicitDefs method of the LiveIntervals analysis has been moved
into its own pass so that it can be run prior to SlotIndexes. This was
necessary to match the existing numbering scheme.
llvm-svn: 85979
2009-11-03 23:52:08 +00:00
53a31ad3c1
Fix branch folding bug for indirect branches: for a block containing only
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an unconditional branch (possibly from tail merging), this code is
trying to redirect all of its predecessors to go directly to the branch
target, but that isn't feasible for indirect branches. The other
predecessors (that don't end with indirect branches) could theoretically
still be handled, but that is not easily done right now.
The AnalyzeBranch interface doesn't currently let us distinguish jump table
branches from indirect branches, and this code is currently handling
jump tables. To avoid punting on address-taken blocks, we would have to give
up handling jump tables. That seems like a bad tradeoff.
llvm-svn: 85975
2009-11-03 23:44:31 +00:00
156b8c7109
reimplement multiple return value handling in IPSCCP, making it
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more aggressive an correct. This survives building llvm in 64-bit
mode with optimizations and the built llvm passes make check.
llvm-svn: 85973
2009-11-03 23:40:48 +00:00
b376ce0169
Fix t2Int_eh_sjlj_setjmp. Immediate form of orr is a 32-bit instruction. So it should be 22 bytes instead of 20 bytes long.
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llvm-svn: 85965
2009-11-03 23:13:34 +00:00
0410bced1c
fconsts / fconstd immediate should be proceeded with #.
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llvm-svn: 85952
2009-11-03 21:59:33 +00:00
f42b5af549
Re-apply 85799. It turns out my code isn't buggy.
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llvm-svn: 85947
2009-11-03 21:40:02 +00:00
8501dbbe10
Do a scheduling pass ignoring anti-dependencies to identify candidate registers that should be renamed.
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llvm-svn: 85939
2009-11-03 20:57:50 +00:00
2c427233d4
finish half thunk thought
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llvm-svn: 85937
2009-11-03 20:52:57 +00:00
3318858efd
Changes requested (avoid getFunction(), avoid Type creation via isVoidTy(), and avoid redundant isFreeCall cases) in feedback to r85176
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llvm-svn: 85936
2009-11-03 20:39:35 +00:00
a86f919763
<rdar://problem/7352605>. When building schedule graph use mayAlias information to avoid chaining loads/stores of spill slots with non-aliased memory ops.
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llvm-svn: 85934
2009-11-03 20:15:00 +00:00
5cd73a3470
Changes (* location in pointer variables, avoiding include, and using APInt::getLimitedValue) based on feedback to r85814
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llvm-svn: 85933
2009-11-03 20:02:35 +00:00
cde8de519d
fix an IPSCCP bug I introduced when I changed IPSCCP to start working on
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functions that don't have local linkage. Basically, we need to be more
careful about propagating argument information to functions whose results
we aren't tracking. This fixes a miscompilation of
LLVMCConfigurationEmitter.cpp when built with an llvm-gcc that has ipsccp
enabled.
llvm-svn: 85923
2009-11-03 19:24:51 +00:00
4afa0838d7
Make this code more robust by not thinking we are making progress
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if zero bytes were read.
llvm-svn: 85922
2009-11-03 19:10:22 +00:00
1cb5116292
Parse debug info attached with insertvalue and extractvalue instructions.
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llvm-svn: 85921
2009-11-03 19:06:07 +00:00
76a4774a0d
Move subtarget check upper for NEON reg-reg fixup pass.
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llvm-svn: 85914
2009-11-03 18:46:11 +00:00
ffa7c07352
Ignore unnamed variables.
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llvm-svn: 85909
2009-11-03 18:30:27 +00:00
e1d5cd9f48
fix a subtle bug I introduced when refactoring SCCP. Testcase
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to follow.
llvm-svn: 85903
2009-11-03 16:50:11 +00:00
5573971453
Eliminate some temporaries.
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llvm-svn: 85896
2009-11-03 12:52:50 +00:00
31c2f4701b
Trim unnecessary include.
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llvm-svn: 85878
2009-11-03 07:08:08 +00:00
064c5fef11
For Thumb indirect branches, use "mov pc, reg" which does not switch
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between ARM/Thumb modes and does not require the low bit of the target
address to be set for Thumb.
llvm-svn: 85874
2009-11-03 06:29:56 +00:00
6235b19d7b
Fix a funky "declared with greater visibility than the type of its field"
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warning from gcc by removing VISIBILITY_HIDDEN attributes.
llvm-svn: 85873
2009-11-03 06:29:36 +00:00
8d681f0471
Fix PR5367. QPR_8 is the super regclass of DPR_8 and SPR_8.
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llvm-svn: 85871
2009-11-03 05:52:54 +00:00
23c009f125
Clean up copyRegToReg.
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llvm-svn: 85870
2009-11-03 05:51:39 +00:00
9e9079371c
Add QPR_8 as a superreg class of SPR_8 and DPR_8.
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llvm-svn: 85869
2009-11-03 05:50:57 +00:00
03d1bca60a
remove unneeded checks of isFreeCall
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llvm-svn: 85866
2009-11-03 05:35:19 +00:00
e9dccd4934
remove a check of isFreeCall: the argument to free is already nocapture so the generic call code works fine.
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llvm-svn: 85865
2009-11-03 05:34:51 +00:00
5a3832496a
remove a isFreeCall check: it is a callinst that can write to memory already.
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llvm-svn: 85863
2009-11-03 05:33:46 +00:00
187cb4f493
Update CMake file.
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llvm-svn: 85861
2009-11-03 04:14:12 +00:00
2124f0d43f
Alphabetize.
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llvm-svn: 85859
2009-11-03 04:01:53 +00:00
fb14181b18
turn IPSCCP back on now that the iterator invalidation bug is fixed.
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llvm-svn: 85858
2009-11-03 03:42:51 +00:00
d195f9e5c3
Turn neon reg-reg moves fixup code into separate pass. This should reduce the compile time.
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llvm-svn: 85850
2009-11-03 01:04:26 +00:00
fbe0256b23
Revert r85049, it is causing PR5367
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llvm-svn: 85847
2009-11-03 00:24:48 +00:00
b389f2a04d
Revert previous change to a comment. The BlockAddresses go in the
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constant pool so they don't get wrapped separately.
llvm-svn: 85844
2009-11-03 00:02:05 +00:00
b70ef3c8c7
fix a nasty iterator invalidation bug from my conversion from
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std::map to DenseMap, exposed on release llvm-gcc bootstrap.
llvm-svn: 85840
2009-11-02 23:25:39 +00:00
a8a58efc03
Revert 85799 for now. It might be breaking llvm-gcc driver.
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llvm-svn: 85827
2009-11-02 21:49:14 +00:00
1c66e8a6b7
Put BlockAddresses into ARM constant pools.
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llvm-svn: 85824
2009-11-02 20:59:23 +00:00
d9dfc2e752
Fix ARMAsmParser::ParseMemoryOffsetReg() where the parameter OffsetRegNum should
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have been passed as a reference.
llvm-svn: 85823
2009-11-02 20:14:39 +00:00
a15cc59dcb
revert r8579[56], which are causing unhappiness in buildbot land.
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llvm-svn: 85818
2009-11-02 19:31:10 +00:00
df022f1449
Set bit instead of calling pow() to compute 2 << n
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llvm-svn: 85814
2009-11-02 18:51:28 +00:00
a38a4dfea7
typo
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llvm-svn: 85812
2009-11-02 18:28:45 +00:00
a3d794ebbb
disable IPSCCP support for multiple return values, it is buggy, so just
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disable it until I can fix it.
llvm-svn: 85810
2009-11-02 18:22:51 +00:00
5ac6f244fd
Fix schedule model for BFC.
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llvm-svn: 85809
2009-11-02 17:28:36 +00:00
4c00a524eb
Hyphenate some comments.
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llvm-svn: 85808
2009-11-02 17:10:37 +00:00
00822aabf6
Chain dependencies used to enforce memory order should have latency of 0 (except for true dependency of Store followed by aliased Load... we estimate that case with a single cycle of latency assuming the hardware will bypass)
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llvm-svn: 85807
2009-11-02 17:06:28 +00:00
433ab09ca3
Add support for BlockAddress values in ARM constant pools.
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llvm-svn: 85806
2009-11-02 16:59:06 +00:00
e90a4aa703
Prune unnecessary include.
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llvm-svn: 85805
2009-11-02 16:58:31 +00:00
2729543984
Initilize the machine LICM CSE map upon the first time an instruction is hoisted to
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the loop preheader. Add instructions which are already in the preheader block that
may be common expressions of those that are hoisted out. These does get a few more
instructions CSE'ed.
llvm-svn: 85799
2009-11-02 08:09:49 +00:00
115cfc07d5
These are done / no longer care.
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llvm-svn: 85798
2009-11-02 07:58:25 +00:00
f6f1b37f9f
Add an entry.
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llvm-svn: 85797
2009-11-02 07:51:19 +00:00
9d49f0c858
improve IPSCCP to be able to propagate the result of "!mayBeOverridden"
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function to calls of that function, regardless of whether it has local
linkage or has its address taken. Not escaping should only affect
whether we make an aggressive assumption about the arguments to a
function, not whether we can track the result of it.
llvm-svn: 85795
2009-11-02 07:33:59 +00:00
Lang Hames