Bill Wendling
869d60d39d
Machine sink could potentially sink instructions into a block where the physical
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registers it defines then interfere with an existing preg live range.
For instance, if we had something like these machine instructions:
BB#0
... = imul ... EFLAGS<imp-def,dead>
test ..., EFLAGS<imp-def>
jcc BB#2 EFLAGS<imp-use>
BB#1
... ; fallthrough to BB#2
BB#2
... ; No code that defines EFLAGS
jcc ... EFLAGS<imp-use>
Machine sink will come along, see that imul implicitly defines EFLAGS, but
because it's "dead", it assumes that it can move imul into BB#2. But when it
does, imul's "dead" imp-def of EFLAGS is raised from the dead (a zombie) and
messes up the condition code for the jump (and pretty much anything else which
relies upon it being correct).
The solution is to know which pregs are live going into a basic block. However,
that information isn't calculated at this point. Nor does the LiveVariables pass
take into account non-allocatable physical registers. In lieu of this, we do a
*very* conservative pass through the basic block to determine if a preg is live
coming out of it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105387 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-03 07:54:20 +00:00
Eric Christopher
30ef0e5658
Add first pass at darwin tls compiler support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105381 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-03 04:07:48 +00:00
Eric Christopher
7310064f4d
One underscore, not two.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105379 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-03 04:02:59 +00:00
Eli Friedman
268637ed0f
Implement expansion in type legalization for add/sub with overflow. The
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expansion is the same as that used by LegalizeDAG.
The resulting code sucks in terms of performance/codesize on x86-32 for a
64-bit operation; I haven't looked into whether different expansions might be
better in general.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105378 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-03 03:49:50 +00:00
Eli Friedman
db1bf34178
Remove some already-fixed README entries.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105377 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-03 01:47:31 +00:00
Eli Friedman
a04a2c0a50
Remove README entry which no longer compiles to something sane.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105376 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-03 01:16:51 +00:00
Eli Friedman
2ad7e433c9
Remove a fixed item, update a couple partially-fixed items.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105375 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-03 01:01:48 +00:00
Jakob Stoklund Olesen
8b89c64b5c
Use the fast register allocator by default for -O0 builds.
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This affects both llvm-gcc and clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105372 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-03 00:39:06 +00:00
Jakob Stoklund Olesen
ead06be02f
Use readsWritesVirtualRegister instead of counting uses and defs when inserting
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spills and reloads.
This means that a partial define of a register causes a reload so the other
parts of the register are preserved.
The reload can be prevented by adding an <imp-def> operand for the full
register. This is already done by the coalescer and live interval analysis where
relevant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105369 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-03 00:07:47 +00:00
Jakob Stoklund Olesen
02571a3a1f
Add full register <imp-def> operands when the coalescer is creating partial
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register updates.
These operands tell the spiller that the other parts of the partially defined
register are don't-care, and a reload is not necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105361 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 23:22:11 +00:00
Devang Patel
6209869f83
Speedup bitcode writer. Do not walk all values for all functions to emit function local metadata. In one testcase, probably worst case scenario, the 70x speed up is seen.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105360 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 23:05:04 +00:00
Bill Wendling
05c68374c1
Compulsive reformating. No functionalitical changes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105359 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 23:04:26 +00:00
Jakob Stoklund Olesen
9edf7deb37
Slightly change the meaning of the reMaterialize target hook when the original
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instruction defines subregisters.
Any existing subreg indices on the original instruction are preserved or
composed with the new subreg index.
Also substitute multiple operands mentioning the original register by using the
new MachineInstr::substituteRegister() function. This is necessary because there
will soon be <imp-def> operands added to non read-modify-write partial
definitions. This instruction:
%reg1234:foo = FLAP %reg1234<imp-def>
will reMaterialize(%reg3333, bar) like this:
%reg3333:bar-foo = FLAP %reg333:bar<imp-def>
Finally, replace the TargetRegisterInfo pointer argument with a reference to
indicate that it cannot be NULL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105358 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 22:47:25 +00:00
Jim Grosbach
18f30e6f5e
Clean up 80 column violations. No functional change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105350 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 21:53:11 +00:00
Rafael Espindola
42d075c4fb
Remove the TargetRegisterClass member from CalleeSavedInfo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105344 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 20:02:30 +00:00
Eli Friedman
962f549d20
Fix comment so it doesn't include comments which are irrelevant to the x86
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backend. Add a FIXME noting what can be fixed here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105342 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 19:35:46 +00:00
Dan Gohman
71c62a2977
Use comments to document non-obvious code rather than
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mailing list archives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105341 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 19:13:40 +00:00
Devang Patel
354eb7ea96
Skip identical instruction while calculating DBG_VALUE range.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105340 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 19:05:13 +00:00
Bob Wilson
91a74da036
Rename canCombinedSubRegIndex method to something more grammatically correct
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and tidy up the comment describing it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105339 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 18:54:47 +00:00
Rafael Espindola
20fae65181
Replace ARM's getCalleeSavedRegClasses with a simpler solution
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105335 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 17:54:50 +00:00
Devang Patel
b9abe9f2ad
Use local small vector.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105332 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 16:42:51 +00:00
Rafael Espindola
691820a1a0
Remove unused function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105325 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 15:44:20 +00:00
Jim Grosbach
086723d244
Not all entries in the range will have an SUnit. Check for that when looking
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for debug information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105324 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 15:29:36 +00:00
Rafael Espindola
6f07bd6ae8
cleanup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105322 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 13:53:17 +00:00
Rafael Espindola
ce48c1de82
Remove uses of getCalleeSavedRegClasses from outside the
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backends and removes the virtual declaration. With that out of the way
I should be able to cleanup one backend at a time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105321 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 12:39:06 +00:00
Evan Cheng
9d709a8edb
Enable machine cse of instructions which define physical registers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105308 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 01:08:27 +00:00
Eli Friedman
a993f0a45f
Don't try to custom-lower 64-bit add-with-overflow and friends on x86-32; the
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x86 backend currently doesn't know how to handle them.
This doesn't really fix anything because LegalizeTypes doesn't know how to
handle them either. We do get a better error message, though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105305 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 00:27:18 +00:00
Bob Wilson
b2c2a972b0
Fix an obvious mistake: don't change the operands until all of them have been
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checked and it is safe to proceed with the changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105304 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 00:16:08 +00:00
Eli Friedman
b242563741
Remove outdated README entries.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105303 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 00:10:36 +00:00
Jim Grosbach
533934e06e
Update debug information when breaking anti-dependencies. rdar://7759363
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105300 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 23:48:44 +00:00
Jakob Stoklund Olesen
a5135f60dd
Properly compose subregister indices when coalescing.
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The comment about ordering of subreg indices is no longer true.
This exposed a bug in the new substVirtReg method that is also fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105294 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 22:39:25 +00:00
Jim Grosbach
23d3d4595c
Remove unused code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105293 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 21:56:30 +00:00
Devang Patel
f2e7767624
Ignore line number of debug value in undefined register.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105292 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 21:43:09 +00:00
Jim Grosbach
69081e9291
fix think-o
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105291 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 21:35:50 +00:00
Dan Gohman
d8acddda58
Fix the allocation of shadow space for the Win64 calling convention
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in X86FastISel. Patch by Jan Sjodin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105290 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 21:09:47 +00:00
Jim Grosbach
aeafb374e2
Simplify things a bit more. Fix prototype to use SmallVectorImpl and
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change a few SmallVectors to vanilla C arrays.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105289 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 21:06:46 +00:00
Dan Gohman
10e7726e6c
Fix the noalias checking so that it doesn't worry about
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an argument aliasing itself. Thanks Duncan!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105288 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 20:51:40 +00:00
Devang Patel
9126c0d42a
Keep track of incoming debug value of unused argument.
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Radar 7927666.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105285 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 19:59:01 +00:00
Dan Gohman
956b349034
Fill in missing support for ISD::FEXP, ISD::FPOWI, and friends.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105283 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 18:35:14 +00:00
Jim Grosbach
2f3257ef04
Add a FIXME
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105282 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 18:06:35 +00:00
Jim Grosbach
0fd8b6283f
mirror of r105280 changes for LowerInvoke, which uses the same basic logic here
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105281 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 18:04:56 +00:00
Jim Grosbach
dc58b25ebc
When processing function arguments when splitting live ranges across invokes,
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handle structs passed by value via an extract/insert pair, as a bitcast
won't work on a struct. rdar://7742824
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105280 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 18:04:09 +00:00
Jim Grosbach
601f9d6c03
Use SmallVector instead of std::vector.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105279 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 17:56:41 +00:00
Bruno Cardoso Lopes
7f5b0d8099
Refactor some SSE 2 unpack instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105276 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 17:02:50 +00:00
Dan Gohman
4b1000d117
Don't call flush() at a library level which isn't checking for errors
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and doesn't know where the output is going.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105274 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 16:31:34 +00:00
Kalle Raiskila
11fe24624a
Fix handling of 'load' nodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105269 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 13:34:47 +00:00
Duncan Sands
2914ba6ec7
Fix PR7272: when inlining through a callsite with byval arguments,
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the newly created allocas may be used by inlined calls, so these
need to have their tail call flags cleared. Fixes PR7272.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105255 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-31 21:00:26 +00:00
Chris Lattner
6c41ad8c9a
fix PR6623: when optimizing for size, don't inline memcpy/memsets
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that are too large. This causes the freebsd bootloader to be too
large apparently.
It's unclear if this should be an -Os or -Oz thing. Thoughts welcome.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105228 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-31 17:30:14 +00:00
Chris Lattner
6b37861827
the 'limit' argument to FindOptimalMemOpLowering is unsigned, not uint64_t.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105226 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-31 17:12:23 +00:00
Benjamin Kramer
c29df3cac7
Avoid swap when a copy suffices.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105220 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-31 12:50:41 +00:00
Nick Lewycky
a9d6680cb1
The memcpy intrinsic only takes i8* for %src and %dst, so cast them to that
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first. Fixes PR7265.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105206 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-31 06:16:35 +00:00
Oscar Fuentes
10e02a017a
Use llvm::next' instead of
next' to make VC++ 2010 happy.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105168 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-30 13:14:21 +00:00
Anton Korobeynikov
4ed81ecbcd
Some A9 load/store cleanups
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105109 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29 19:25:39 +00:00
Anton Korobeynikov
8207fce96f
Some rough approximations for load/stores on A9
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105108 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29 19:25:34 +00:00
Anton Korobeynikov
1098ef5fa4
NEON/VFP stuff can be issued only via Pipe1 on A9
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105107 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29 19:25:29 +00:00
Anton Korobeynikov
1845a387e1
Add some integer instruction itineraries for A9
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105106 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29 19:25:17 +00:00
Dan Gohman
462f6b57b6
Reorder some code in SelectionDAGBuilder.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105105 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29 17:53:24 +00:00
Dan Gohman
7451d3e09d
SelectionDAG shouldn't have a FunctionLoweringInfo member. RegsForValue
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shouldn't have a TargetLoweringInfo member. And FunctionLoweringInfo::set
doesn't needs its EnableFastISel argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105101 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29 17:03:36 +00:00
Benjamin Kramer
0f9c658558
Remove unused function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105100 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29 14:03:51 +00:00
Evan Cheng
701d4d309f
Remove schedule-livein-copies. It's not being used.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105095 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29 02:23:39 +00:00
Evan Cheng
9c044674e6
Fix PR7193: if sibling call address can take a register, make sure there are enough registers available by counting inreg arguments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105092 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29 01:35:22 +00:00
Jakob Stoklund Olesen
5a0d4fcb8d
Handle composed subreg indices when processing REQ_SEQUENCE instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105066 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29 00:14:14 +00:00
Evan Cheng
82e0a1a1a8
Doh. Machine LICM is re-initializing the CSE map over and over. Patch by Anna Zaks. rdar://8037934.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105065 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29 00:06:36 +00:00
Jakob Stoklund Olesen
05ce489871
Merge the SystemZ subreg_even32 SubRegIndex into subreg_32bit. The SubRegIndices
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were overspecified when inheriting sub-subregisters, for instance:
R0Q:subreg_even32 = R0Q:subreg_32bit = R0Q:subreg_even:subreg_32bit.
This meant that composeSubRegIndices(subreg_even, subreg_32bit) was ambiguous.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105063 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 23:48:29 +00:00
Evan Cheng
046fa3f90a
Fix some latency computation bugs: if the use is not a machine opcode do not just return zero.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105061 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 23:26:21 +00:00
Evan Cheng
c10f5434b4
Schedule high latency instructions for latency reduction even if they are not vfp / NEON instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105060 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 23:25:23 +00:00
Dale Johannesen
2f05cc06a2
Fix comment typos.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105059 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 23:24:28 +00:00
Bruno Cardoso Lopes
f39e0ce4ec
More SSE 1 & 2 merge, this time with logical instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105014 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 22:47:03 +00:00
Dan Gohman
dd05466ef4
Fix AliasDebugger to be aware of operand values too.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105012 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 22:31:51 +00:00
Dan Gohman
aec2a0dbce
Add lint checks for function attributes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105009 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 21:43:57 +00:00
Dan Gohman
2c048ea538
Split the logic behind CastInst::isNoopCast into a separate static function,
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as is done with most other cast opcode predicates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105008 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 21:41:37 +00:00
Kevin Enderby
31cc9655b6
MC/X86: Add alias for movzx.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105005 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 21:20:21 +00:00
Kevin Enderby
5e394429ab
MC/X86: Add alias for fwait.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105001 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 20:59:10 +00:00
Kevin Enderby
31b6c5b2f3
Fix the use of x86 control and debug registers so that the assertion failure in
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getX86RegNum() does not happen. Patch by Shantonu Sen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104994 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 19:01:27 +00:00
Jakob Stoklund Olesen
2da5337024
Add a TargetRegisterInfo::composeSubRegIndices hook with a default
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implementation that is correct for most targets. Tablegen will override where
needed.
Add MachineOperand::subst{Virt,Phys}Reg methods that correctly handle existing
subreg indices when sustituting registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104985 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 18:18:53 +00:00
Jim Grosbach
bc213209bf
correct retattr
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104980 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 18:03:48 +00:00
Jim Grosbach
c9792a3c1f
Cosmetic cleanup. No functional change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104974 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 17:51:20 +00:00
Dan Gohman
13ec30b6a1
Fix lint's memcpy and memmove checks, and its basic block traversal.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104970 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 17:44:00 +00:00
Jim Grosbach
5caeff5c01
make sure accesses to set up the jmpbuf don't get moved after it by the scheduler. Add a missing \n.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104967 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 17:37:40 +00:00
Dan Gohman
52c239566e
Minor code simplification.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104959 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 16:50:23 +00:00
Dan Gohman
9ba7f65743
Fix a redundant-return warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104958 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 16:50:01 +00:00
Dan Gohman
17d95965cb
Detect self-referential values.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104957 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 16:45:33 +00:00
Stuart Hastings
8ffc42f8ea
Revert 104841, 104842, 104876 due to buildbot failures. Radar 7424645.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104953 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 16:41:07 +00:00
Dan Gohman
078f8595b5
Eli pointed out that va_arg instruction result values don't
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reference the stack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104951 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 16:34:49 +00:00
Dan Gohman
ff26d4e9ce
Teach lint how to look through simple store+load pairs and other
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effective no-op constructs, to make it more effective on
unoptimized IR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104950 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 16:21:24 +00:00
Dan Gohman
dd9344f3fa
Move FindAvailableLoadedValue isSafeToLoadUnconditionally out of
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lib/Transforms/Utils and into lib/Analysis so that Analysis passes
can use them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104949 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 16:19:17 +00:00
Dan Gohman
700012231d
ConstantFoldConstantExpression can theoretically return null.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104948 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 16:12:08 +00:00
Dan Gohman
05d6253727
Teach instcombine to promote alloca array sizes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104945 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 15:09:00 +00:00
Dan Gohman
292fc87fe2
Add a lint check for returning the address of stack memory.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104936 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 04:33:42 +00:00
Dan Gohman
28d2e0a39f
Fix instcombine's handling of alloca to accept non-i32 types.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104935 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 04:33:04 +00:00
Dan Gohman
a37dd3e6a5
Bitcode support for allocas with arbitrary array size types.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104915 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 01:38:28 +00:00
Devang Patel
4251d85ae7
Fix typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104914 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 01:29:50 +00:00
Devang Patel
f7a3051471
Fix typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104913 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 01:17:51 +00:00
Dan Gohman
f75a7d3fbf
Eliminate the restriction that the array size in an alloca must be i32.
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This will help reduce the amount of casting required on 64-bit targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104911 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 01:14:11 +00:00
Bob Wilson
13ef840807
Add the cc_out operand for t2RSBrs instructions. I missed this when I changed
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the instruction class for t2RSB to add that operand in svn r104582.
Radar 8033757.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104907 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 00:27:15 +00:00
Jakob Stoklund Olesen
700bfada63
Add a -regalloc=default option that chooses a register allocator based on the -O
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optimization level.
This only really affects llc for now because both the llvm-gcc and clang front
ends override the default register allocator. I intend to remove that code later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104904 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27 23:57:25 +00:00
Jim Grosbach
0798eddd07
Update the saved stack pointer in the sjlj function context following either
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an alloca() or an llvm.stackrestore(). rdar://8031573
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104900 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27 23:49:24 +00:00
Evan Cheng
12616727c7
Use report_fatal_error, not llvm_unreachable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104899 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27 23:45:31 +00:00
Jim Grosbach
a65850230a
back out 104862/104869. Can reuse stacksave after all. Very cool.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104897 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27 23:11:57 +00:00
Dan Gohman
39f76bb6c8
Factor out the handler work from SignalHandler into a helper function,
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and change llvm::sys::RunInterruptHandlers to call that function directly
instead of calling SignalHandler, because the rest of SignalHandler
invokes side effects which aren't appropriate, including raising the
signal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104896 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27 23:11:55 +00:00