Chris Lattner [Tue, 23 Feb 2010 01:33:17 +0000 (01:33 +0000)]
hack around more crimes in instruction selection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96852
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Dan Gohman [Tue, 23 Feb 2010 01:28:09 +0000 (01:28 +0000)]
Convert this test to FileCheck and add a testcase for PR3574.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96851
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Chris Lattner [Tue, 23 Feb 2010 01:20:00 +0000 (01:20 +0000)]
the cell backend is making all sorts of unsafe and incorrect assumptions
about ownership and update policies. It isn't clear why it is doing all
this lowering at isel time instead of in legalize. This fixes fcmp64.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96849
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Chris Lattner [Tue, 23 Feb 2010 01:07:39 +0000 (01:07 +0000)]
really fix an off-by-one error
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96845
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 23 Feb 2010 01:07:09 +0000 (01:07 +0000)]
fix an off-by-one error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96844
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Chris Lattner [Tue, 23 Feb 2010 00:59:59 +0000 (00:59 +0000)]
switch the value# in OPC_CompleteMatch and OPC_EmitNode to use a
VBR encoding for the insanity being perpetrated by the spu backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96843
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Johnny Chen [Tue, 23 Feb 2010 00:33:12 +0000 (00:33 +0000)]
Added VCEQ (immediate #0) NEON instruction for disassembly only.
A8.6.281
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96838
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Jakob Stoklund Olesen [Tue, 23 Feb 2010 00:28:53 +0000 (00:28 +0000)]
Dead code elimination
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96837
91177308-0d34-0410-b5e6-
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Jeffrey Yasskin [Tue, 23 Feb 2010 00:04:53 +0000 (00:04 +0000)]
Fix viewCFG on Linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96834
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Chris Lattner [Mon, 22 Feb 2010 23:55:39 +0000 (23:55 +0000)]
add a new Push2 opcode for targets (like cellspu) which have
ridiculously ginormous patterns and need more than one byte
of displacement for encodings. This fixes CellSPU/fdiv.ll.
SPU is still doing something else ridiculous though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96833
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Evan Cheng [Mon, 22 Feb 2010 23:37:48 +0000 (23:37 +0000)]
These should not have been committed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96827
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Chris Lattner [Mon, 22 Feb 2010 23:34:12 +0000 (23:34 +0000)]
no need to run llvm-as here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96826
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Evan Cheng [Mon, 22 Feb 2010 23:34:00 +0000 (23:34 +0000)]
Instcombine constant folding can normalize gep with negative index to index with large offset. When instcombine objsize checking transformation sees these geps where the offset seemingly point out of bound, it should just return "i don't know" rather than asserting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96825
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Chris Lattner [Mon, 22 Feb 2010 23:33:44 +0000 (23:33 +0000)]
Change ComplexPattern handling to push the node being matched as
well as the operands produced when the pattern is matched. This
allows CheckSame to work correctly when matching replicated
names involving ComplexPatterns. This fixes a bunch of MSP430
failures, we're down to 13 failures, two of which are
due to a sched bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96824
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Jim Grosbach [Mon, 22 Feb 2010 23:10:38 +0000 (23:10 +0000)]
Updated version of r96634 (which was reverted due to failing 176.gcc and
126.gcc nightly tests. These failures uncovered latent bugs that machine DCE
could remove one half of a stack adjust down/up pair, causing PEI to assert.
This update fixes that, and the tests now pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96822
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Dan Gohman [Mon, 22 Feb 2010 23:07:52 +0000 (23:07 +0000)]
Add a test for canonicalizing ConstantExpr operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96820
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Jim Grosbach [Mon, 22 Feb 2010 22:54:55 +0000 (22:54 +0000)]
Clean up a bit and fix for when SPAdj != 0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96818
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Jim Grosbach [Mon, 22 Feb 2010 22:47:46 +0000 (22:47 +0000)]
The predicate index isn't fixed, so scan for it to make sure we get the proper
value.
Thumb2 uses the tADJCALLSTACK* instructions, and doesn't need t2 versions, so
remove the FIXME entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96817
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Dan Gohman [Mon, 22 Feb 2010 22:43:23 +0000 (22:43 +0000)]
Canonicalize ConstantInts to the right operand of commutative
operators.
The test difference is just due to the multiplication operands
being commuted (and thus requiring a more elaborate match). In
optimized code, that expression would be folded.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96816
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Chris Lattner [Mon, 22 Feb 2010 22:37:11 +0000 (22:37 +0000)]
expand my hack to work with nodes that have flags but no chains and the
isel doesn't know the correct # results. This fixes 8 codegen tests,
down to 22 failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96815
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Chris Lattner [Mon, 22 Feb 2010 22:30:37 +0000 (22:30 +0000)]
add a new CheckMultiOpcode opcode for checking that a node
has one of the list of acceptable opcodes for a complex
pattern. This fixes 4 regtest failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96814
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Chris Lattner [Mon, 22 Feb 2010 22:18:05 +0000 (22:18 +0000)]
When matching patterns that have a complex pattern as their root, make
sure to only run the complex pattern on nodes where the target opts in.
This patch only handles targets with one opcode specified so far, but
fixes 16 failures, only 34 left.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96813
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Chris Lattner [Mon, 22 Feb 2010 22:15:39 +0000 (22:15 +0000)]
add some debug hooks for tracking the behavior of the isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96812
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Chris Lattner [Mon, 22 Feb 2010 22:15:05 +0000 (22:15 +0000)]
remove dupes now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96811
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Chris Lattner [Mon, 22 Feb 2010 22:14:47 +0000 (22:14 +0000)]
move #includes earlier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96810
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Daniel Dunbar [Mon, 22 Feb 2010 22:08:57 +0000 (22:08 +0000)]
MC/Mach-O: Remove non-sensical comment, and add a missing AddValueSymbols call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96809
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Dan Gohman [Mon, 22 Feb 2010 22:07:27 +0000 (22:07 +0000)]
Minor formatting cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96808
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Dan Gohman [Mon, 22 Feb 2010 22:05:18 +0000 (22:05 +0000)]
Use Instruction::isCommutative instead of duplicating it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96807
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Johnny Chen [Mon, 22 Feb 2010 21:50:40 +0000 (21:50 +0000)]
Added SEL, SXTB16, SXTAB16, UXTAB16, SMMULR, SMMLAR, SMMLSR, SMUAD, and SMUSD,
for disassembly only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96806
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Bob Wilson [Mon, 22 Feb 2010 21:39:41 +0000 (21:39 +0000)]
Erase deleted instructions from GVN's ValueTable. This fixes assertion
failures from ValueTable::verifyRemoved() when using -debug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96805
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Dan Gohman [Mon, 22 Feb 2010 18:53:26 +0000 (18:53 +0000)]
Actually enable the -enable-unsafe-fp-math tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96796
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Johnny Chen [Mon, 22 Feb 2010 18:50:54 +0000 (18:50 +0000)]
Added a bunch of instructions for disassembly only:
o signed/unsigned add/subtract
o signed/unsigned halving add/subtract
o unsigned sum of absolute difference [and accumulate]
o signed/unsigned saturate
o signed multiply accumulate/subtract [long] dual
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96795
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Arnold Schwaighofer [Mon, 22 Feb 2010 16:18:09 +0000 (16:18 +0000)]
Mark the return address stack slot as mutable when moving the return address
during a tail call. A parameter might overwrite this stack slot during the tail
call.
The sequence during a tail call is:
1.) load return address to temp reg
2.) move parameters (might involve storing to return address stack slot)
3.) store return address to new location from temp reg
If the stack location is marked immutable CodeGen can colocate load (1) with the
store (3).
This fixes bug 6225.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96783
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Daniel Dunbar [Mon, 22 Feb 2010 05:55:32 +0000 (05:55 +0000)]
LLVMC/MultiplePluginPriorities.td: Generally XFAIL this test for now, it is
still failing during (one) llvm-gcc powerpc build, and is also failing on my
x86_64-apple-darwin10.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96781
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Dan Gohman [Mon, 22 Feb 2010 04:11:59 +0000 (04:11 +0000)]
Remove unused variables and parameters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96780
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Dan Gohman [Mon, 22 Feb 2010 04:10:52 +0000 (04:10 +0000)]
Fix various doxygen warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96779
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Dan Gohman [Mon, 22 Feb 2010 04:09:26 +0000 (04:09 +0000)]
Fix a typo in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96778
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Dan Gohman [Mon, 22 Feb 2010 04:06:03 +0000 (04:06 +0000)]
Constant-fold certain comparisons with infinity and negative infinity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96777
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Dan Gohman [Mon, 22 Feb 2010 04:04:24 +0000 (04:04 +0000)]
Rename a variable to avoid a -Wshadow warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96776
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Dan Gohman [Mon, 22 Feb 2010 04:03:39 +0000 (04:03 +0000)]
Remove the logic for reasoning about NaNs from the code that forms
SSE min and max instructions. The real thing this code needs to be
concerned about is negative zero.
Update the sse-minmax.ll test accordingly, and add tests for
-enable-unsafe-fp-math mode as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96775
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Dan Gohman [Mon, 22 Feb 2010 03:59:54 +0000 (03:59 +0000)]
When emitting an instruction which depends on both a post-incremented
induction variable value and a loop-variant value, don't force the
insert position to be at the post-increment position, because it may
not be dominated by the loop-variant value. This fixes a
use-before-def problem noticed on PPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96774
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Dan Gohman [Mon, 22 Feb 2010 02:07:36 +0000 (02:07 +0000)]
This cast<Instruction> is unnecessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96771
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Chris Lattner [Mon, 22 Feb 2010 00:47:38 +0000 (00:47 +0000)]
enhance my hack for flags handling, this allows us to pass
CodeGen/X86/pr2182.ll. Down to 13 x86 failures out of ~1100
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96770
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Chris Lattner [Mon, 22 Feb 2010 00:28:59 +0000 (00:28 +0000)]
fix an incorrect VT: eflags is always i32. The bug was causing us to
create an X86ISD::Cmp node with result type i64 on the
CodeGen/X86/shift-i256.ll testcase and the new isel was assert on it
downstream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96768
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Chris Lattner [Sun, 21 Feb 2010 23:54:05 +0000 (23:54 +0000)]
fix most of the failures in the x86 suite by handling multiple
result nodes correctly. Note that this includes a horrible hack
in DAGISelHeader which cannot be fixed reasonably without
eliminating (parallel) from input patterns. That, in turn,
can't be done until we support writing multiple result patterns
for the X86and_flag and related multiple-result nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96767
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Daniel Dunbar [Sun, 21 Feb 2010 21:54:14 +0000 (21:54 +0000)]
MC/X86: Add stub AsmBackend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96763
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Daniel Dunbar [Sun, 21 Feb 2010 21:53:53 +0000 (21:53 +0000)]
MC: Sketch registry support for target specific assembler backends.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96762
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Daniel Dunbar [Sun, 21 Feb 2010 21:53:37 +0000 (21:53 +0000)]
Formatting tweaks (trailing whitespace, ordering, comments).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96761
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Chris Lattner [Sun, 21 Feb 2010 20:57:28 +0000 (20:57 +0000)]
fix an odd thinko in an assertion, all arm tests pass now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96758
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Chris Lattner [Sun, 21 Feb 2010 20:53:45 +0000 (20:53 +0000)]
Always emit register class id references as i32 like
DAGISelEmitter does. This fixes 11 arm failures (8
left).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96757
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Chris Lattner [Sun, 21 Feb 2010 20:33:20 +0000 (20:33 +0000)]
add some no-unwinds, other minor cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96756
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Anton Korobeynikov [Sun, 21 Feb 2010 20:28:15 +0000 (20:28 +0000)]
It turned out that we failed to emit proper symbol stubs on non-x86/darwin for ages (we emitted a reference to a stub, but no stub was emitted). The code inside x86-32/macho target objfile lowering should actually be the generic one - move it there.
This (I really, really hope) should fix EH issues on ppc/darwin
and arm/darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96755
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Chris Lattner [Sun, 21 Feb 2010 20:15:25 +0000 (20:15 +0000)]
speculatively teach OPC_CheckValueType and OPC_EmitNode to handle
MVT::iPTR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96753
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Chris Lattner [Sun, 21 Feb 2010 20:10:43 +0000 (20:10 +0000)]
teach OPC_CheckType to handle MVT::iPTR, down to 2 ppc failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96752
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Chris Lattner [Sun, 21 Feb 2010 20:02:15 +0000 (20:02 +0000)]
make this check a bit more generous, it may be outliving its
utility. Down to 6 ppc failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96751
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Chris Lattner [Sun, 21 Feb 2010 19:35:07 +0000 (19:35 +0000)]
Relax an assertion a bit. We allow replacing things like
<4 x i32> with <4 x float> values if they end up the same
register class. This gets us up to 231 passes on the ppc
tests (only 7 fails).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96750
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Chris Lattner [Sun, 21 Feb 2010 19:27:38 +0000 (19:27 +0000)]
add a triple so that this doesn't fail due to linux/ppc register printing
syntax.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96748
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Chris Lattner [Sun, 21 Feb 2010 19:22:06 +0000 (19:22 +0000)]
Sort the patterns before adding them to the FA so that we get the
least cost matches. This gets us from 195 -> 208 passes on the ppc codegen tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96747
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Duncan Sands [Sun, 21 Feb 2010 19:15:19 +0000 (19:15 +0000)]
Remove a bunch of duplicated code, where there was one version taking a std::ostream
and another taking a raw_ostream, but otherwise identical. Use raw_ostream everywhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96746
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Chris Lattner [Sun, 21 Feb 2010 18:53:28 +0000 (18:53 +0000)]
filecheckize and add nouwinds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96745
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Jakob Stoklund Olesen [Sun, 21 Feb 2010 18:51:48 +0000 (18:51 +0000)]
Enable assertion to detect cyclic valno references.
This changes the stack overflow in PR6363 to an assertion failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96744
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Anton Korobeynikov [Sun, 21 Feb 2010 12:28:58 +0000 (12:28 +0000)]
IT turns out that during jumpless setcc lowering eq and ne were swapped.
This fixes PR6348
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96734
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Chris Lattner [Sun, 21 Feb 2010 07:55:48 +0000 (07:55 +0000)]
when a match fails and we have to rollback, make sure to keep 'N' in
sync with the top of stack. This fixes a bunch of failures on larger
testcases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96732
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Chris Lattner [Sun, 21 Feb 2010 07:19:06 +0000 (07:19 +0000)]
handle optional in flags that aren't present.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96731
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Chris Lattner [Sun, 21 Feb 2010 07:16:41 +0000 (07:16 +0000)]
emit table indexes before each row so that it is debuggable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96730
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Chris Lattner [Sun, 21 Feb 2010 06:58:27 +0000 (06:58 +0000)]
fix two bugs in OPC_EmitRegister, which makes ppc happier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96728
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Chris Lattner [Sun, 21 Feb 2010 06:44:29 +0000 (06:44 +0000)]
fix a table size miscomputation, target opcodes are 2 bytes.
With this, the matcher actually works reasonably well, but
crashes on larger examples in the scheduler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96727
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Chris Lattner [Sun, 21 Feb 2010 06:30:04 +0000 (06:30 +0000)]
emit to the right streams, to avoid emitting the push
body before the push.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96726
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Chris Lattner [Sun, 21 Feb 2010 06:03:56 +0000 (06:03 +0000)]
oops don't turn this on for everyone yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96725
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Chris Lattner [Sun, 21 Feb 2010 06:03:07 +0000 (06:03 +0000)]
implement the last known missing feature: updating uses of results
of the matched pattern to use the newly created node results. Onto
the "making it actually work" phase!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96724
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Chris Lattner [Sun, 21 Feb 2010 04:53:34 +0000 (04:53 +0000)]
fix and un-xfail X86/vec_ss_load_fold.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96720
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Johnny Chen [Sun, 21 Feb 2010 04:42:01 +0000 (04:42 +0000)]
Undo r96654. The printing of ARM shift instructions in canonical forms can be
handled in ARMInstPrinter.cpp.
And added PLD/PLDW/PLI (Preload Data/Instruction) for disassembly only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96719
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Charles Davis [Sun, 21 Feb 2010 04:26:06 +0000 (04:26 +0000)]
Reduce size of 'StackAlignment' field from 5 to 3 bits. Seriously, who needs a
2GB-aligned stack anyway? 256 bytes is plenty. Requested by Chris.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96718
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Chris Lattner [Sun, 21 Feb 2010 03:24:41 +0000 (03:24 +0000)]
temporarily disable this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96717
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Chris Lattner [Sun, 21 Feb 2010 03:22:59 +0000 (03:22 +0000)]
Lots of improvements to the new dagisel emitter. This gets it to
the point where it is to the 95% feature complete mark, it just
needs result updating to be done (then testing, optimization
etc).
More specificallly, this adds support for chain and flag handling
on the result nodes, support for sdnodexforms, support for variadic
nodes, memrefs, pinned physreg inputs, and probably lots of other
stuff.
In the old DAGISelEmitter, this deletes the dead code related to
OperatorMap, cleans up a variety of dead stuff handling "implicit
remapping" from things like globaladdr -> targetglobaladdr (which
is no longer used because globaladdr always needs to be legalized),
and some minor formatting fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96716
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Chris Lattner [Sun, 21 Feb 2010 03:17:59 +0000 (03:17 +0000)]
rename SelectScalarSSELoad -> SelectScalarSSELoadXXX and rewrite
it to follow the mode needed by the new isel. Instead of returning
the input and output chains, it just returns the (currently only one,
which is a silly limitation) node that has input and output chains.
Since we want the old thing to still work, add a new
SelectScalarSSELoad to emulate the old interface. The XXX suffix
and the wrapper will eventually go away.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96715
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Chris Lattner [Sun, 21 Feb 2010 03:15:11 +0000 (03:15 +0000)]
add a hook so that the new isel can run SDNodeXForms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96714
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Chris Lattner [Sun, 21 Feb 2010 03:13:10 +0000 (03:13 +0000)]
Eliminate some uses of immAllOnes, just use -1, it does
the same thing and is more efficient for the matcher.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96713
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Chris Lattner [Sun, 21 Feb 2010 03:12:16 +0000 (03:12 +0000)]
Eliminate some uses of immAllOnes, just use -1, it does
the same thing and is more efficient for the matcher.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96712
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Tanya Lattner [Sun, 21 Feb 2010 03:01:05 +0000 (03:01 +0000)]
Test commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96711
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Tanya Lattner [Sun, 21 Feb 2010 02:59:05 +0000 (02:59 +0000)]
Test commit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96710
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Dan Gohman [Fri, 19 Feb 2010 19:35:48 +0000 (19:35 +0000)]
Rename getSDiv to getExactSDiv to reflect its behavior in cases where
the division would have a remainder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96693
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Dan Gohman [Fri, 19 Feb 2010 19:32:49 +0000 (19:32 +0000)]
Check for overflow when scaling up an add or an addrec for
scaled reuse.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96692
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Bob Wilson [Fri, 19 Feb 2010 18:59:53 +0000 (18:59 +0000)]
Revert 96634. It causes assertion failures for 126.gcc and 176.gcc in
the armv6 nightly tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96691
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Dan Gohman [Fri, 19 Feb 2010 18:49:22 +0000 (18:49 +0000)]
Add a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96688
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Charles Davis [Fri, 19 Feb 2010 18:17:13 +0000 (18:17 +0000)]
Add support for the 'alignstack' attribute to the x86 backend. Fixes PR5254.
Also, FileCheck'ize a test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96686
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Dan Gohman [Fri, 19 Feb 2010 18:12:07 +0000 (18:12 +0000)]
Teach ScalarEvolution how to compute a tripcount for a loop with
true or false as its exit condition. These are usually eliminated by
SimplifyCFG, but the may be left around during a pass which wishes
to preserve the CFG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96683
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Bob Wilson [Fri, 19 Feb 2010 17:10:59 +0000 (17:10 +0000)]
Revert Anton's most recent EH patch (r96637), since it breaks a lot of
ARM and Thumb tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96680
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Duncan Sands [Fri, 19 Feb 2010 11:30:41 +0000 (11:30 +0000)]
Revert commits 96556 and 96640, because commit 96556 breaks the
dragonegg self-host build. I reverted 96640 in order to revert
96556 (96640 goes on top of 96556), but it also looks like with
both of them applied the breakage happens even earlier. The
symptom of the 96556 miscompile is the following crash:
llvm[3]: Compiling AlphaISelLowering.cpp for Release build
cc1plus: /home/duncan/tmp/tmp/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:4982: void llvm::SelectionDAG::ReplaceAllUsesWith(llvm::SDNode*, llvm::SDNode*, llvm::SelectionDAG::DAGUpdateListener*): Assertion `(!From->hasAnyUseOfValue(i) || From->getValueType(i) == To->getValueType(i)) && "Cannot use this version of ReplaceAllUsesWith!"' failed.
Stack dump:
0. Running pass 'X86 DAG->DAG Instruction Selection' on function '@_ZN4llvm19AlphaTargetLowering14LowerOperationENS_7SDValueERNS_12SelectionDAGE'
g++: Internal error: Aborted (program cc1plus)
This occurs when building LLVM using LLVM built by LLVM (via
dragonegg). Probably LLVM has miscompiled itself, though it
may have miscompiled GCC and/or dragonegg itself: at this point
of the self-host build, all of GCC, LLVM and dragonegg were built
using LLVM. Unfortunately this kind of thing is extremely hard
to debug, and while I did rummage around a bit I didn't find any
smoking guns, aka obviously miscompiled code.
Found by bisection.
r96556 | evancheng | 2010-02-18 03:13:50 +0100 (Thu, 18 Feb 2010) | 5 lines
Some dag combiner goodness:
Transform br (xor (x, y)) -> br (x != y)
Transform br (xor (xor (x,y), 1)) -> br (x == y)
Also normalize (and (X, 1) == / != 1 -> (and (X, 1)) != / == 0 to match to "test on x86" and "tst on arm"
r96640 | evancheng | 2010-02-19 01:34:39 +0100 (Fri, 19 Feb 2010) | 16 lines
Transform (xor (setcc), (setcc)) == / != 1 to
(xor (setcc), (setcc)) != / == 1.
e.g. On x86_64
%0 = icmp eq i32 %x, 0
%1 = icmp eq i32 %y, 0
%2 = xor i1 %1, %0
br i1 %2, label %bb, label %return
=>
testl %edi, %edi
sete %al
testl %esi, %esi
sete %cl
cmpb %al, %cl
je LBB1_2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96672
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Duncan Sands [Fri, 19 Feb 2010 09:18:53 +0000 (09:18 +0000)]
Correct LastPrimitiveTyID: MetadataType is a primitive type.
This change probably has no functional effect.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96669
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Chris Lattner [Fri, 19 Feb 2010 07:49:56 +0000 (07:49 +0000)]
add emitter support for integer constants and simple physreg references.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96663
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Dale Johannesen [Fri, 19 Feb 2010 07:14:22 +0000 (07:14 +0000)]
recommit 96626, evidence that it broke things appears
to be spurious
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96662
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Chris Lattner [Fri, 19 Feb 2010 07:02:20 +0000 (07:02 +0000)]
fix this to work more determinstically, patch by Thomas Veith!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96661
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Devang Patel [Fri, 19 Feb 2010 02:58:33 +0000 (02:58 +0000)]
Test case for r96656.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96657
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Johnny Chen [Fri, 19 Feb 2010 02:12:06 +0000 (02:12 +0000)]
Added entries for ASR, LSL, LSR, ROR, and RRX so that the disassembler prints
out the canonical form (A8.6.98) instead of the pseudo-instruction as provided
via MOVs.
DBG_ARM_DISASM=YES llvm-mc -triple=arm-unknown-unknown --disassemble
0xc0 0x00 0xa0 0xe1
Opcode=29 Name=ASR Format=ARM_FORMAT_LDMISCFRM
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
-------------------------------------------------------------------------------------------------
| 1: 1: 1: 0| 0: 0: 0: 1| 1: 0: 1: 0| 0: 0: 0: 0| 0: 0: 0: 0| 0: 0: 0: 0| 1: 1: 0: 0| 0: 0: 0: 0|
-------------------------------------------------------------------------------------------------
asr r0, r0, #1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96654
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Dale Johannesen [Fri, 19 Feb 2010 01:54:37 +0000 (01:54 +0000)]
Revert 96626, which causes build failure on ppc Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96653
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Evan Cheng [Fri, 19 Feb 2010 00:34:39 +0000 (00:34 +0000)]
Transform (xor (setcc), (setcc)) == / != 1 to
(xor (setcc), (setcc)) != / == 1.
e.g. On x86_64
%0 = icmp eq i32 %x, 0
%1 = icmp eq i32 %y, 0
%2 = xor i1 %1, %0
br i1 %2, label %bb, label %return
=>
testl %edi, %edi
sete %al
testl %esi, %esi
sete %cl
cmpb %al, %cl
je LBB1_2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96640
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Chris Lattner [Fri, 19 Feb 2010 00:33:13 +0000 (00:33 +0000)]
I confused myself, temporaries will be recorded right along with other inputs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96639
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Anton Korobeynikov [Fri, 19 Feb 2010 00:29:36 +0000 (00:29 +0000)]
Use the same encoding for EH stuff uniformly on all MachO targets.
This hopefulyl should unbreak EH on PPC/Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96637
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Chris Lattner [Fri, 19 Feb 2010 00:27:40 +0000 (00:27 +0000)]
introduce a new ResultVal and start keeping track of temporary values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96636
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