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
Benjamin Kramer
4839d872fc
Update Readme and Makefiles for the new gtest.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105355 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 22:02:57 +00:00
Benjamin Kramer
57240ff6e2
Merge gtest-1.5.0.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105354 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 22:02:30 +00:00
Benjamin Kramer
190f8ee25a
Merge gtest-1.4.0.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105353 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 22:02:11 +00:00
Benjamin Kramer
e4b9c93fc1
Merge gtest-1.3.0.
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OSX users: make sure that CrashReporter is disabled when running unit tests.
Death tests are enabled now so you'll get a ton of message boxes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105352 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 22:01:25 +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
Nate Begeman
7c8c8830a9
arm_neon.h emitter now mostly complete for the purposes of initial testing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105349 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 21:53:00 +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
Jim Grosbach
63ef367954
remove trailing whitespace
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105333 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 17:45:54 +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
b26f27969e
Update the documentation, getCalleeSavedRegClasses is not required anymore.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105323 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 14:03:11 +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
Duncan Sands
8dbbacedcd
Pacify recent gcc: remove a pointless const qualifier.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105318 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 08:37:30 +00:00
Nate Begeman
e66aab553c
Checkpoint; handle 'int' and 'void' correctly
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105316 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 07:14:28 +00:00
Nate Begeman
af905efc61
Emit full function prototypes. Definitions & typedefs to come.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105315 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 06:17:19 +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
Nate Begeman
22237771d8
Checkpoint arm_neon.h generation with tablegen
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105307 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 00:34:55 +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
Sean Hunt
891f27380c
Fix comment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105297 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 23:29:39 +00:00
Devang Patel
735419dfe7
DwarfWrite is now smart enough to drop debug value pointing to undefined register. Update this test to avoid this.
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iSel not properly lowring argument into a well formed DBG_VALUE in some cases is a separate issue and not related to the test in this testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105295 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 23:01:43 +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
Dan Gohman
426b06d808
Delete unused variables (that weren't even getting expanded).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105278 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 17:26:14 +00:00