Andreas Bolka [Tue, 30 Jun 2009 21:33:56 +0000 (21:33 +0000)]
Drop redundant print impl.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74553
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Dan Gohman [Tue, 30 Jun 2009 20:13:32 +0000 (20:13 +0000)]
Minor code cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74551
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Dan Gohman [Tue, 30 Jun 2009 20:10:56 +0000 (20:10 +0000)]
Reapply 74494, this time removing the conflicting definition of operator<<
in APIntTest.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74550
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David Goodwin [Tue, 30 Jun 2009 19:50:22 +0000 (19:50 +0000)]
Improve Thumb-2 jump table support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74549
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David Greene [Tue, 30 Jun 2009 19:24:59 +0000 (19:24 +0000)]
Add 256-bit memory operand support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74548
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David Goodwin [Tue, 30 Jun 2009 18:04:13 +0000 (18:04 +0000)]
Add conditional and unconditional thumb-2 branch. Add thumb-2 jump table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74543
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Owen Anderson [Tue, 30 Jun 2009 17:50:28 +0000 (17:50 +0000)]
Add wrappers for type construction to LLVMContext.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74542
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Chris Lattner [Tue, 30 Jun 2009 17:10:19 +0000 (17:10 +0000)]
add a FAQ.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74538
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Owen Anderson [Tue, 30 Jun 2009 17:06:46 +0000 (17:06 +0000)]
Fix up header comments to make Chris happy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74537
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Rafael Espindola [Tue, 30 Jun 2009 16:40:03 +0000 (16:40 +0000)]
Fix PR4485.
Avoid unnecessary duplication of operand 0 of X86::FpSET_ST0_80. This duplication would
cause one register to remain on the stack at the function return.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74534
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Daniel Dunbar [Tue, 30 Jun 2009 16:26:57 +0000 (16:26 +0000)]
Revert my intentional breakage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74531
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Daniel Dunbar [Tue, 30 Jun 2009 16:11:58 +0000 (16:11 +0000)]
Intentionally break a unittest to test my buildbot gtest command.
- Apologies in advance for the noise.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74530
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Daniel Dunbar [Tue, 30 Jun 2009 16:02:47 +0000 (16:02 +0000)]
Suppress may-be-used-uninitialized warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74529
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Douglas Gregor [Tue, 30 Jun 2009 14:37:26 +0000 (14:37 +0000)]
Fix CMake build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74527
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Oscar Fuentes [Tue, 30 Jun 2009 14:12:28 +0000 (14:12 +0000)]
Fixed assert that checks return value of TlsSetValue.
See http://msdn.microsoft.com/en-us/library/ms686818(VS.85).aspx
Patch by Olaf Krzikalla!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74526
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Rafael Espindola [Tue, 30 Jun 2009 12:18:16 +0000 (12:18 +0000)]
Fix PR4484.
This was caused by me confounding FP0 and ST(0).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74523
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Evan Cheng [Tue, 30 Jun 2009 09:19:42 +0000 (09:19 +0000)]
Temporarily restore the scavenger implicit_def checking code. MachineOperand isUndef mark is not being put on implicit_def of physical registers (created for parameter passing, etc.).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74519
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Evan Cheng [Tue, 30 Jun 2009 08:49:04 +0000 (08:49 +0000)]
Add a bit IsUndef to MachineOperand. This indicates the def / use register operand is defined by an implicit_def. That means it can def / use any register and passes (e.g. register scavenger) can feel free to ignore them.
The register allocator, when it allocates a register to a virtual register defined by an implicit_def, can allocate any physical register without worrying about overlapping live ranges. It should mark all of operands of the said virtual register so later passes will do the right thing.
This is not the best solution. But it should be a lot less fragile to having the scavenger try to track what is defined by implicit_def.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74518
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Bill Wendling [Tue, 30 Jun 2009 07:05:27 +0000 (07:05 +0000)]
Temporarily revert r74494. It was causing failures in the unit tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74515
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Chris Lattner [Tue, 30 Jun 2009 06:27:54 +0000 (06:27 +0000)]
got confused again
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74514
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Chris Lattner [Tue, 30 Jun 2009 06:20:03 +0000 (06:20 +0000)]
fix some issues Jeff Yasskin noticed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74512
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Chris Lattner [Tue, 30 Jun 2009 06:13:23 +0000 (06:13 +0000)]
add a note about re-evaluating end() every time through a loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74511
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Owen Anderson [Tue, 30 Jun 2009 05:33:46 +0000 (05:33 +0000)]
Fix the build on Cygwin. Patch by Aaron Gray.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74510
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Chris Lattner [Tue, 30 Jun 2009 05:22:31 +0000 (05:22 +0000)]
remove a bogus note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74509
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Chris Lattner [Tue, 30 Jun 2009 04:20:46 +0000 (04:20 +0000)]
add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74508
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Bill Wendling [Tue, 30 Jun 2009 04:07:12 +0000 (04:07 +0000)]
#include <iostream> is forbidden. Remove it in favor of raw_ostream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74507
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Evan Cheng [Tue, 30 Jun 2009 02:15:48 +0000 (02:15 +0000)]
A few more load instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74500
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Andreas Bolka [Tue, 30 Jun 2009 02:12:10 +0000 (02:12 +0000)]
Array accesses are independent if the underlying arrays differ.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74499
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Daniel Dunbar [Tue, 30 Jun 2009 02:10:03 +0000 (02:10 +0000)]
llvm-mc: Accept relocatable expressions for .org, assignments, .byte, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74498
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Daniel Dunbar [Tue, 30 Jun 2009 02:08:27 +0000 (02:08 +0000)]
llvm-mc: Rewrite binary subtraction for relocatable expressions, we can't always
legally negate an MCValue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74497
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Daniel Dunbar [Tue, 30 Jun 2009 01:49:52 +0000 (01:49 +0000)]
llvm-mc: Evaluation for relocatable expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74496
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Dan Gohman [Tue, 30 Jun 2009 01:29:09 +0000 (01:29 +0000)]
Delete a spurious blank line at the top of the file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74495
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Dan Gohman [Tue, 30 Jun 2009 01:28:08 +0000 (01:28 +0000)]
Define an operator<< for APInt to be used with std::ostream.
This will allow it to be used in unittests that use gtest's
EXPECT_EQ.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74494
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Dan Gohman [Tue, 30 Jun 2009 01:25:30 +0000 (01:25 +0000)]
Minor formatting, whitespace, and 80-column fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74492
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Dan Gohman [Tue, 30 Jun 2009 01:24:43 +0000 (01:24 +0000)]
Minor code simplification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74491
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David Goodwin [Tue, 30 Jun 2009 01:02:20 +0000 (01:02 +0000)]
Enhance tests to include shifted-register operand testing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74490
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Daniel Dunbar [Tue, 30 Jun 2009 00:49:23 +0000 (00:49 +0000)]
Normalize SourceMgr messages.
- Don't print "Parsing" in front of every message.
- Take additional "type" argument which is prepended to the message (with ": ")
if given.
- Update clients to print errors (warnings) as:
<filename>:<line number>: error(warning): ...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74489
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Owen Anderson [Tue, 30 Jun 2009 00:48:55 +0000 (00:48 +0000)]
Add LLVMContext, which will eventually be used as a container for privatizing a lot of (currently) global state, including the
constant and type uniquing tables. For now, just make it a wrapper around the existing APIs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74488
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Daniel Dunbar [Tue, 30 Jun 2009 00:33:19 +0000 (00:33 +0000)]
llvm-mc: Parse symbol attribute directives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74487
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Mikhail Glushenkov [Tue, 30 Jun 2009 00:16:43 +0000 (00:16 +0000)]
Regenerate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74485
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Mikhail Glushenkov [Tue, 30 Jun 2009 00:16:22 +0000 (00:16 +0000)]
Clang is now production quality (at least for C).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74484
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Mikhail Glushenkov [Tue, 30 Jun 2009 00:16:00 +0000 (00:16 +0000)]
Add a way to access argv[0] in hooks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74483
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Mikhail Glushenkov [Tue, 30 Jun 2009 00:15:24 +0000 (00:15 +0000)]
Move the driver entry point out of Main.inc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74482
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Daniel Dunbar [Mon, 29 Jun 2009 23:46:59 +0000 (23:46 +0000)]
llvm-mc: Parse .{,b,p2}align{,w,l} directives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74478
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Devang Patel [Mon, 29 Jun 2009 23:46:50 +0000 (23:46 +0000)]
Struct types are described using field types only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74477
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Daniel Dunbar [Mon, 29 Jun 2009 23:43:14 +0000 (23:43 +0000)]
llvm-mc: Diagnose misuse (mix) of defined symbols and labels.
- For example, we diagnose errors on:
--
a:
a = 10
--
- For now we reject code like:
--
.long a
a = 10
--
which "as" accepts (on Darwin).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74476
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Daniel Dunbar [Mon, 29 Jun 2009 23:28:55 +0000 (23:28 +0000)]
Add SMLoc::isValid method.
- To support using SMLoc as a sentinel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74474
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Daniel Dunbar [Mon, 29 Jun 2009 22:59:36 +0000 (22:59 +0000)]
Fix install of libCompilerDriver dynamic library to not copy on every build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74473
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David Greene [Mon, 29 Jun 2009 22:55:52 +0000 (22:55 +0000)]
Remove commented code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74471
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David Greene [Mon, 29 Jun 2009 22:50:51 +0000 (22:50 +0000)]
Add a 256-bit register class and YMM registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74469
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David Goodwin [Mon, 29 Jun 2009 22:49:42 +0000 (22:49 +0000)]
Add Thumb-2 support for TEQ amd TST.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74468
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David Goodwin [Mon, 29 Jun 2009 22:25:22 +0000 (22:25 +0000)]
Thumb-2 tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74464
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Daniel Dunbar [Mon, 29 Jun 2009 22:00:57 +0000 (22:00 +0000)]
llvm-mc: Recognize C++ style comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74463
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Daniel Dunbar [Mon, 29 Jun 2009 21:58:22 +0000 (21:58 +0000)]
llvm-mc: Recognize C++ style comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74462
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Dan Gohman [Mon, 29 Jun 2009 21:31:18 +0000 (21:31 +0000)]
Use getSCEV instead of getUnknown to create a SCEV for a
Constant. This lets ConstantInts be handled as SCEVConstant instead
of SCEVUnknown, as getUnknown no longer has special-case code for
ConstantInt and friends. This usually doesn't affect the final
output, since the constants end up getting folded later, but it
does make intermediate expressions more obvious in many cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74459
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Daniel Dunbar [Mon, 29 Jun 2009 21:14:21 +0000 (21:14 +0000)]
Fix uninitialized variable warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74457
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Daniel Dunbar [Mon, 29 Jun 2009 21:12:26 +0000 (21:12 +0000)]
Don't build LLVMC when configured with --disable-pic (it needs requires shared
module support to build).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74456
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Torok Edwin [Mon, 29 Jun 2009 21:05:10 +0000 (21:05 +0000)]
Set wasRun to false here on Dan's suggestion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74455
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Devang Patel [Mon, 29 Jun 2009 20:45:18 +0000 (20:45 +0000)]
s/MainCU/ModuleCU/g
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74452
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Daniel Dunbar [Mon, 29 Jun 2009 20:41:28 +0000 (20:41 +0000)]
Set some svn:ignore props
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74451
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Daniel Dunbar [Mon, 29 Jun 2009 20:40:36 +0000 (20:40 +0000)]
MC: Improve expression parsing and implement evaluation of absolute expressions
(missed files).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74450
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Devang Patel [Mon, 29 Jun 2009 20:38:13 +0000 (20:38 +0000)]
Multiple DW_TAG_compile_unit is not used, afaict, on any target.
Update dwarf writer to only emit one DW_TAG_compile_unit per .o file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74449
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Daniel Dunbar [Mon, 29 Jun 2009 20:37:27 +0000 (20:37 +0000)]
MC: Improve expression parsing and implement evaluation of absolute expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74448
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Dan Gohman [Mon, 29 Jun 2009 20:34:13 +0000 (20:34 +0000)]
Don't cache PHI exit values from exhaustive evaluations, because
an individual exhaustive evaluation reflects only the exit value
implied by an individual exit, which may differ from the actual
exit value of the loop if there are other exits. This fixes PR4477.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74447
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Rafael Espindola [Mon, 29 Jun 2009 20:29:59 +0000 (20:29 +0000)]
FIX PR 4459.
Not sure I understand how the temp register gets used,
but this fixes a bug and introduces no regressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74446
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David Greene [Mon, 29 Jun 2009 20:07:17 +0000 (20:07 +0000)]
Add some tests of advanced TableGen list functionality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74445
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David Greene [Mon, 29 Jun 2009 20:05:29 +0000 (20:05 +0000)]
Implement !cast<string>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74444
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David Greene [Mon, 29 Jun 2009 19:59:52 +0000 (19:59 +0000)]
Improve TableGen error reporting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74443
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Torok Edwin [Mon, 29 Jun 2009 19:59:10 +0000 (19:59 +0000)]
Initialize CurSection in constructor.
Not doing so causes some unittests to fail, because CurSection is uninitialized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74442
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Daniel Dunbar [Mon, 29 Jun 2009 19:57:24 +0000 (19:57 +0000)]
Fix order of arguments to EXPECT_EQ
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74441
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Daniel Dunbar [Mon, 29 Jun 2009 19:51:00 +0000 (19:51 +0000)]
Rename MCValue::getCst to getConstant and add MCValue::isConstant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74440
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Andreas Bolka [Mon, 29 Jun 2009 18:51:11 +0000 (18:51 +0000)]
Relax LDA memory instruction checks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74439
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Torok Edwin [Mon, 29 Jun 2009 18:49:09 +0000 (18:49 +0000)]
Call doInitialization(), releaseMemory(), and doFinalization() for on-the-fly passes as well.
Also don't call finalizers for LoopPass if initialization was not called.
Add a unittest that tests that these methods are called, in the proper
order, and the correct number of times.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74438
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Dan Gohman [Mon, 29 Jun 2009 18:25:52 +0000 (18:25 +0000)]
Simplify this code, and avoid using APInt(). This fixes
(otherwise harmless) uninitialized value warnings that
Duncan found with gcc-4.4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74437
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Owen Anderson [Mon, 29 Jun 2009 18:04:45 +0000 (18:04 +0000)]
Add a target-specific DAG combine on X86 to fold the common pattern of
fence-atomic-fence down to just the atomic op. This is possible thanks to
X86's relatively strong memory model, which guarantees that locked instructions
(which are used to implement atomics) are implicit fences.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74435
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Sebastian Redl [Mon, 29 Jun 2009 17:12:06 +0000 (17:12 +0000)]
Fix three MSVC 2008 warnings that completely clutter the build output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74430
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David Greene [Mon, 29 Jun 2009 16:54:06 +0000 (16:54 +0000)]
Add processor descriptions for Istanbul and Shanghai.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74429
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David Greene [Mon, 29 Jun 2009 16:51:01 +0000 (16:51 +0000)]
Fix a subtarget feature bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74428
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David Greene [Mon, 29 Jun 2009 16:47:10 +0000 (16:47 +0000)]
Add more vector ValueTypes for AVX and other extended vector instruction
sets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74427
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Douglas Gregor [Mon, 29 Jun 2009 16:25:22 +0000 (16:25 +0000)]
Fix CMake checks for pthread_getspecific and pthread_rwlock_init, from Xerxes Ranby
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74426
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David Goodwin [Mon, 29 Jun 2009 15:33:01 +0000 (15:33 +0000)]
Rename ARMcmpNZ to ARMcmpZ and use it to represent comparisons that set only the Z flag (i.e. eq and ne). Make ARMcmpZ commutative.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74423
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Duncan Sands [Mon, 29 Jun 2009 13:36:13 +0000 (13:36 +0000)]
Add triple for OpenBSD.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74422
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Duncan Sands [Mon, 29 Jun 2009 13:11:32 +0000 (13:11 +0000)]
Include the new file ThumbRegisterInfo.cpp to CMakeLists.txt
to make sure ThumbRegisterInfo.cpp are compiled and linked in.
Patch by Xerxes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74421
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Evan Cheng [Mon, 29 Jun 2009 07:51:04 +0000 (07:51 +0000)]
Implement Thumb2 ldr.
After much back and forth, I decided to deviate from ARM design and split LDR into 4 instructions (r + imm12, r + imm8, r + r << imm12, constantpool). The advantage of this is 1) it follows the latest ARM technical manual, and 2) makes it easier to reduce the width of the instruction later. The down side is this creates more inconsistency between the two sub-targets. We should split ARM LDR instruction in a similar fashion later. I've added a README entry for this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74420
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Mikhail Glushenkov [Mon, 29 Jun 2009 03:09:15 +0000 (03:09 +0000)]
Make dynamic LLVMC plugins work on Windows (finally!).
Implemented by making lib/CompilerDriver a shared library that holds all the
global static data (CommandLine options, plugin registry) that we unfortunately
have to live with.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74417
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Andreas Bolka [Mon, 29 Jun 2009 00:53:49 +0000 (00:53 +0000)]
Missed one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74416
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Andreas Bolka [Mon, 29 Jun 2009 00:50:26 +0000 (00:50 +0000)]
Fix case in LDA util function names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74415
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Andreas Bolka [Sun, 28 Jun 2009 00:35:22 +0000 (00:35 +0000)]
Print pairwise dependence results, add testcases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74402
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Andreas Bolka [Sun, 28 Jun 2009 00:21:21 +0000 (00:21 +0000)]
Minimal LDA interface, maximally conservative tester.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74401
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Andreas Bolka [Sun, 28 Jun 2009 00:16:08 +0000 (00:16 +0000)]
LDA analysis output scaffolding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74400
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Dan Gohman [Sat, 27 Jun 2009 22:58:27 +0000 (22:58 +0000)]
Don't try to split a loop when the controlling icmp instruction
doesn't have an IV-based operand. This fixes PR4471.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74399
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Dan Gohman [Sat, 27 Jun 2009 22:32:36 +0000 (22:32 +0000)]
Remove the block from the LoopInfo, rather than just the Loop.
LoopInfo will handle removing it from the Loop, as well as updating
its own tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74398
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Dan Gohman [Sat, 27 Jun 2009 21:30:38 +0000 (21:30 +0000)]
Teach LoopSimplify how to merge multiple loop exits into a single exit,
when one of them can be converted to a trivial icmp and conditional
branch.
This addresses what is essentially a phase ordering problem.
SimplifyCFG knows how to do this transformation, but it doesn't do so
if the primary block has any instructions in it other than an icmp and
a branch. In the given testcase, the block contains other instructions,
however they are loop-invariant and can be hoisted. SimplifyCFG doesn't
have LoopInfo though, so it can't hoist them. And, it's important that
the blocks be merged before LoopRotation, as it doesn't support
multiple-exit loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74396
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Dan Gohman [Sat, 27 Jun 2009 21:23:40 +0000 (21:23 +0000)]
More minor code simplifications.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74395
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Dan Gohman [Sat, 27 Jun 2009 21:22:48 +0000 (21:22 +0000)]
Eliminate a layer of indirection in LoopInfo and MachineLoopInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74394
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Dan Gohman [Sat, 27 Jun 2009 21:21:31 +0000 (21:21 +0000)]
Convert ScalarEvolution to use BumpPtrAllocator and FoldingSet, instead
of a team of individual allocations and a team of std::maps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74393
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Dan Gohman [Sat, 27 Jun 2009 21:18:51 +0000 (21:18 +0000)]
Remove a redundant #include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74392
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Dan Gohman [Sat, 27 Jun 2009 21:18:18 +0000 (21:18 +0000)]
Change SCEVExpander to use an IRBuilder to emit instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74391
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Dan Gohman [Sat, 27 Jun 2009 20:53:16 +0000 (20:53 +0000)]
Add a 'const' in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74389
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Anton Korobeynikov [Sat, 27 Jun 2009 12:59:03 +0000 (12:59 +0000)]
Simplify a bit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74385
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