211e348eaa
Update inter-procedural optimizations for atomic load/store.
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llvm-svn: 137667
2011-08-15 22:16:46 +00:00
8bc586e770
Update instcombine for atomic load/store.
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llvm-svn: 137664
2011-08-15 22:09:40 +00:00
3acc70e536
Refactor. Variables are part of compile unit so let CompileUnit create new variable.
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llvm-svn: 137663
2011-08-15 22:04:40 +00:00
4419cd2464
Add some comments here because the lack of a check for volatile/atomic here is a bit unusual.
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llvm-svn: 137662
2011-08-15 21:56:39 +00:00
cbe7feeab9
Fix PR10656. It's only profitable to use 128-bit inserts and extracts
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when AVX mode is one. Otherwise is just more work for the type
legalizer.
llvm-svn: 137661
2011-08-15 21:45:54 +00:00
d899444347
There is no need to maintain a set to keep track of variables that use location expressions. In such cases, AT_location attribute's value will be a label.
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llvm-svn: 137659
2011-08-15 21:43:21 +00:00
900d97719b
Fix warning.
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llvm-svn: 137658
2011-08-15 21:35:16 +00:00
3e4a965519
Simplify. Let DbgVariable keep track of variable's DBG_VALUE machine instruction.
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llvm-svn: 137656
2011-08-15 21:24:36 +00:00
e86965ee19
Duncan pointed out that the LandingPadInst might read memory. (It might also
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write to memory.) Marking it as such makes some checks for immobility go away.
llvm-svn: 137655
2011-08-15 21:14:31 +00:00
4d05198d1f
Fix llvm::CloneModule to correctly clone globals. Patch per bug report by Simon Moll on llvmdev.
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llvm-svn: 137654
2011-08-15 21:05:06 +00:00
b9d5a63c86
Fix predicates methods on Instruction to handle atomic load/store correctly.
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llvm-svn: 137652
2011-08-15 21:00:18 +00:00
5494adac67
Misc analysis passes that need to be aware of atomic load/store.
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llvm-svn: 137650
2011-08-15 20:54:19 +00:00
91386c7be4
Atomic load/store support in LICM.
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llvm-svn: 137648
2011-08-15 20:52:09 +00:00
1d5d2cac8c
Enforce the constraint that Rt must be even on LDRD/STRD instructions in ARM mode. Update tests to reflect this fact.
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Patch by James Molloy.
llvm-svn: 137647
2011-08-15 20:51:32 +00:00
de25f9aa8f
Remove dead classes.
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llvm-svn: 137643
2011-08-15 20:11:11 +00:00
d9fb470758
The "landingpad" instruction will never be "trivially" dead.
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llvm-svn: 137642
2011-08-15 20:10:51 +00:00
61a3ece665
Fix incorrect encoding of UMAAL and friends. Patch by James Molloy.
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llvm-svn: 137641
2011-08-15 20:08:25 +00:00
99819b527d
Simplify mapping to variable from its abstract variable info.
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When a variable is inlined multiple places, abstract variable keeps name, location, type etc.. info and all other concreate instances of the variable directly refers to abstract variable.
llvm-svn: 137637
2011-08-15 19:01:20 +00:00
3157f2eebe
Fix decoding LDRSB and LDRSH in Thumb1 mode. Patch by James Molloy.
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llvm-svn: 137636
2011-08-15 19:00:06 +00:00
b9d82f411c
Fix problems decoding the to/from-lane NEON memory instructions, and add a comprehensive NEON decoding testcase.
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llvm-svn: 137635
2011-08-15 18:44:44 +00:00
d7d80aadd1
Refactor.
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llvm-svn: 137632
2011-08-15 18:40:16 +00:00
6e4d2c9fb7
Refactor.
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llvm-svn: 137631
2011-08-15 18:35:42 +00:00
dd94d3426b
Don't try to sink the landingpad instruction. It's immobile.
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llvm-svn: 137629
2011-08-15 18:23:40 +00:00
9af5b22b76
The landingpad instruction isn't loop-invariant.
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llvm-svn: 137628
2011-08-15 18:22:49 +00:00
88294cdbe0
Mark the SCC as "might unwind" if we run into a 'resume' instruction.
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llvm-svn: 137627
2011-08-15 18:22:00 +00:00
b9c0e0db53
Skip the insertion iterator past the landingpad instruction if there.
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llvm-svn: 137626
2011-08-15 18:21:07 +00:00
dfd6ec3ce1
Refactor. Global variables are part of compile unit so let CompileUnit create new global variable.
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llvm-svn: 137621
2011-08-15 17:57:41 +00:00
895437142a
Refactor. A subprogram is part of compile unit so let CompileUnit construct new subprogram.
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llvm-svn: 137618
2011-08-15 17:24:54 +00:00
30694dcdeb
Update comment to reflect MC target machine refactor.
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llvm-svn: 137615
2011-08-15 16:52:24 +00:00
55421f0c4d
Add inlining for the new EH scheme.
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This builds off of the current scheme, but instead of llvm.eh.exception and
llvm.eh.selector, it uses the landingpad instruction. And instead of
llvm.eh.resume, it uses the resume instruction.
Because of the invariants in the landing pad instruction, a lot of code that's
currently needed to find the appropriate intrinsic calls for an invoke
instruction won't be needed once we go to the new EH scheme. The "FIXME"s tell
us what to remove after we switch.
llvm-svn: 137576
2011-08-14 08:01:36 +00:00
746e317953
This transform is not safe. Thanks to Eli for pointing that out!
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llvm-svn: 137575
2011-08-14 04:51:49 +00:00
ae13df60a6
Don't attempt to add 'nsw' when intermediate instructions had no such guarantee.
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llvm-svn: 137572
2011-08-14 03:41:33 +00:00
de49278c26
Teach instcombine to preserve the nsw bit by doing an after-the-fact analysis
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when combining add and sub instructions. Patch by Pranav Bhandarkar!
llvm-svn: 137570
2011-08-14 01:45:19 +00:00
45620380b5
EE: Provide the symbol "lseek64" explicitly with <unistd.h> on Linux glibc.
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With libcxx, it seems <unistd.h> would not be provided. Thanks to Ryuta Suzuki.
llvm-svn: 137567
2011-08-14 00:34:04 +00:00
6858b344ed
Fix PR 10635. When generating integer constants, the constant element type may
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be illegal, even if the requested vector type is legal. Testcase is one of the
disabled ARM tests in the vector-select patch.
llvm-svn: 137562
2011-08-13 20:31:45 +00:00
d1de7764be
Expand VMOVQQQQ pseudo instructions.
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Apparently we never added code to expand these pseudo instructions, and in
over a year, no one has noticed. Our register allocator must be awesome!
llvm-svn: 137551
2011-08-13 05:14:55 +00:00
2be81acd77
Remove the last improper use of getGlobalContext() from LLVM.
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This caused a race condition where a thread calls ~LLVMContextImpl which calls
Module::dropAllReferences which calls begin() on an empty ilist that would
create the sentinel, which racily accesses the global context.
This can not be fixed by locking inside createSentinel because the lock would
need to be shared with all users of the global context, including those that
reside outside LLVM's own code.
llvm-svn: 137546
2011-08-13 01:04:44 +00:00
02e737b08e
Move "atomic" and "volatile" designations on instructions after the opcode
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of the instruction.
Note that this change affects the existing non-atomic load and store
instructions; the parser now accepts both forms, and the change is noted
in the release notes.
llvm-svn: 137527
2011-08-12 22:50:01 +00:00
2325474368
ARM STR_POST_IMM offset encoding fix in load/store optimizer.
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Tidy up the code a bit and push the definition of the value next to the uses
to try to minimize this sort of issue from arising again while I'm at it.
rdar://9945172
llvm-svn: 137525
2011-08-12 22:20:41 +00:00
c53dd2ac01
Fix comment!
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llvm-svn: 137521
2011-08-12 21:54:42 +00:00
f15dfe5818
The VPERM2F128 is a AVX instruction which permutes between two 256-bit
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vectors. It operates on 128-bit elements instead of regular scalar
types. Recognize shuffles that are suitable for VPERM2F128 and teach
the x86 legalizer how to handle them.
llvm-svn: 137519
2011-08-12 21:48:26 +00:00
960c8f71aa
Move code around and add comments
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llvm-svn: 137518
2011-08-12 21:48:22 +00:00
2fcc1cfdce
Define unaligned load and store.
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llvm-svn: 137515
2011-08-12 21:30:06 +00:00
f402f694e2
ARM expansion of pre-indexed store pseudos should maintain memoperands.
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Partial fix for rdar://9945172.
llvm-svn: 137513
2011-08-12 21:02:34 +00:00
a52aa3c18f
Add checks for the landingpad instruction's clause values to make sure that
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they're the correct type.
llvm-svn: 137511
2011-08-12 20:52:25 +00:00
2d1d7a11f8
Fix some remaining issues with decoding ARM-mode memory instructions, and add another batch of tests.
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llvm-svn: 137502
2011-08-12 20:36:11 +00:00
fae1475823
Initial commit of the 'landingpad' instruction.
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This implements the 'landingpad' instruction. It's used to indicate that a basic
block is a landing pad. There are several restrictions on its use (see
LangRef.html for more detail). These restrictions allow the exception handling
code to gather the information it needs in a much more sane way.
This patch has the definition, implementation, C interface, parsing, and bitcode
support in it.
llvm-svn: 137501
2011-08-12 20:24:12 +00:00
60138eaf93
Fix decoding of ARM-mode STRH.
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llvm-svn: 137499
2011-08-12 20:02:50 +00:00
1043e173bc
Specify fixed bit in the LDRBT encoding, which allows us to distinguish it from certain USAT16 encodings.
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llvm-svn: 137494
2011-08-12 19:41:29 +00:00
3987a61c16
Fix decoding of pre-indexed stores.
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llvm-svn: 137487
2011-08-12 18:12:39 +00:00
Eli Friedman