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Dan Gohman [Wed, 15 Dec 2010 20:49:55 +0000 (20:49 +0000)]
Reapply r121886, and also update DecomposeGEPExpression to keep
it in sync.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121895
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Jakob Stoklund Olesen [Wed, 15 Dec 2010 20:40:22 +0000 (20:40 +0000)]
Add SlotIndexes::getMBBRange() to get the range of a basic block in a single
lookup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121893
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Dan Gohman [Wed, 15 Dec 2010 20:39:25 +0000 (20:39 +0000)]
Revert r121886. DecomposeGEPExpression needs to be kept
in sync.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121892
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Wesley Peck [Wed, 15 Dec 2010 20:27:28 +0000 (20:27 +0000)]
Lower the MBlaze target specific calling conventions for "interrupt_handler"
and "save_volatiles" correctly. This completes the custom calling convention
functionality changes for the MBlaze backend that were started in 121888.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121891
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Wesley Peck [Wed, 15 Dec 2010 20:14:09 +0000 (20:14 +0000)]
Adding target specific calling conventions to support the MBlaze GCC function
attributes "interrupt_handle" and "save_volatiles". Support for lowering these
correctly will be in an upcoming commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121888
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Dan Gohman [Wed, 15 Dec 2010 20:10:26 +0000 (20:10 +0000)]
Strengthen GetUnderlyingObject using InstructionSimplify.
While LLVM's main design is that analysis code shouldn't
go out of its way to understand code which hasn't been
InstCombined, analysis utility routines like this can
find themselves being called in the middle of transform
passes when instcombine hasn't had a chance to run.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121886
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Dan Gohman [Wed, 15 Dec 2010 20:02:24 +0000 (20:02 +0000)]
Move Value::getUnderlyingObject to be a standalone
function so that it can live in Analysis instead of
VMCore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121885
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Wesley Peck [Wed, 15 Dec 2010 19:35:36 +0000 (19:35 +0000)]
Add some special purpose register definitions to the MBlaze backend and cleanup some old, unused floating point register definitions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121882
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Owen Anderson [Wed, 15 Dec 2010 19:24:24 +0000 (19:24 +0000)]
Fix typo in r121875.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121880
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Jim Grosbach [Wed, 15 Dec 2010 19:03:16 +0000 (19:03 +0000)]
Tweak a few pseudo-inst pattern base classes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121878
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Nick Lewycky [Wed, 15 Dec 2010 18:57:18 +0000 (18:57 +0000)]
Clean up some of LVI:
* mergeIn now uses constant folding for constants that are provably not-equal.
* sink some sanity checks from the get*() methods into the mark*() methods, to ensure that we never have a constant/notconstant ConstantInt
* some textual cleanups, whitespace changes, removing "else" after return, that sort of thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121877
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Jim Grosbach [Wed, 15 Dec 2010 18:48:45 +0000 (18:48 +0000)]
The new t2LEApcrel* pseudo instructions need the size specified.
rdar://
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121876
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Owen Anderson [Wed, 15 Dec 2010 18:48:27 +0000 (18:48 +0000)]
Implement cleanups suggested by Daniel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121875
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Dan Gohman [Wed, 15 Dec 2010 18:45:20 +0000 (18:45 +0000)]
Document some more AliasAnalysis infrastructure limitations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121874
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Jakob Stoklund Olesen [Wed, 15 Dec 2010 18:07:48 +0000 (18:07 +0000)]
Fix build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121872
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Jakob Stoklund Olesen [Wed, 15 Dec 2010 17:49:52 +0000 (17:49 +0000)]
Detect and enumerate bypass loops.
Bypass loops have the current live range live through, but contain no uses or
defs. Splitting around a bypass loop can free registers for other uses inside
the loop by spilling the split range.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121871
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Jakob Stoklund Olesen [Wed, 15 Dec 2010 17:41:19 +0000 (17:41 +0000)]
Separate SplitAnalysis::getSplitLoops().
This method returns the set of loops with uses that are candidates for
splitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121870
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Bob Wilson [Wed, 15 Dec 2010 16:58:45 +0000 (16:58 +0000)]
Add a Neon intrinsic test generator.
This is still a WIP. It's already good enough to expose a few bugs, though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121868
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Bob Wilson [Wed, 15 Dec 2010 16:58:42 +0000 (16:58 +0000)]
Fix Neon intrinsic immediate range checking for some double-register operands.
Some quad-register intrinsics with lane operands only take a double-register
operand for the vector containing the lane. The valid range of lane numbers
is then half as big as you would expect from the quad-register type.
Note: This currently has no effect because those intrinsics are now handled
entirely in the header file using __builtin_shufflevector, which does its own
range checking, but I want to use this for generating tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121867
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Duncan Sands [Wed, 15 Dec 2010 14:07:39 +0000 (14:07 +0000)]
Move Sub simplifications and additional Add simplifications out of
instcombine and into InstructionSimplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121861
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Duncan Sands [Wed, 15 Dec 2010 11:02:22 +0000 (11:02 +0000)]
If we detect that the instruction we are simplifying is unreachable, arrange for
it to be replaced by undef rather than not replaced at all, the idea being that
this may reduce the amount of work done by whoever called InstructionSimplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121860
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Frits van Bommel [Wed, 15 Dec 2010 09:51:20 +0000 (09:51 +0000)]
Teach jump threading to "look through" a select when the branch direction of a terminator depends on it.
When it sees a promising select it now tries to figure out whether the condition of the select is known in any of the predecessors and if so it maps the operands appropriately.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121859
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Bill Wendling [Wed, 15 Dec 2010 08:51:02 +0000 (08:51 +0000)]
Add fixups for Thumb LDR/STR instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121858
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Rafael Espindola [Wed, 15 Dec 2010 08:45:53 +0000 (08:45 +0000)]
Relax alignment fragments.
With this we don't need the EffectiveSize field anymore. Without that field
LayoutFragment only updates offsets and we don't need to invalidate the
current fragment when it is relaxed (only the ones following it).
This is also a very small improvement in the accuracy of the layout info as
we now use the after relaxation size immediately.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121857
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Rafael Espindola [Wed, 15 Dec 2010 07:39:29 +0000 (07:39 +0000)]
Patch by David Meyer to avoid a O(N^2) behaviour when relaxing fragments.
Since we now don't update addresses so early, we might relax a bit more than
we need to. This is simillar to the issue in PR8467.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121856
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Chris Lattner [Wed, 15 Dec 2010 07:28:58 +0000 (07:28 +0000)]
add another overflow idiom
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121854
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Chris Lattner [Wed, 15 Dec 2010 07:25:55 +0000 (07:25 +0000)]
add a note about overflow idiom recognition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121853
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Rafael Espindola [Wed, 15 Dec 2010 07:12:24 +0000 (07:12 +0000)]
Generalize an assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121851
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Chris Lattner [Wed, 15 Dec 2010 07:10:43 +0000 (07:10 +0000)]
add a shift/imul missed optimization
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121850
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Chris Lattner [Wed, 15 Dec 2010 06:38:24 +0000 (06:38 +0000)]
add a note about a SPEC hack that gcc mainline does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121849
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Chris Lattner [Wed, 15 Dec 2010 06:04:19 +0000 (06:04 +0000)]
take care of some todos, transforming [us]mul_lohi into
a wider mul if the wider mul is legal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121848
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Chris Lattner [Wed, 15 Dec 2010 05:58:59 +0000 (05:58 +0000)]
merge two tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121847
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Chris Lattner [Wed, 15 Dec 2010 05:51:39 +0000 (05:51 +0000)]
when transforming a MULHS into a wider MUL, there is no need to SRA the
result, the top bits are truncated off anyway, just use SRL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121846
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Chris Lattner [Wed, 15 Dec 2010 04:52:41 +0000 (04:52 +0000)]
make qsort predicate more conformant by returning 0 for equal values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121838
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Chris Lattner [Wed, 15 Dec 2010 04:48:22 +0000 (04:48 +0000)]
various cleanups to tblgen, patch by Garrison Venn!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121837
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Bill Wendling [Wed, 15 Dec 2010 01:35:55 +0000 (01:35 +0000)]
Add mention that we support FreeBSD/amd64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121832
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Kevin Enderby [Wed, 15 Dec 2010 01:24:36 +0000 (01:24 +0000)]
Add some more MC tests for ARM arithmetic instructions that update or don't
update the condition codes. These come from my test generator and are just
the ones that MC currently assembles correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121830
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Mikhail Glushenkov [Wed, 15 Dec 2010 01:22:34 +0000 (01:22 +0000)]
Copy-pastos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121829
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Mikhail Glushenkov [Wed, 15 Dec 2010 01:22:29 +0000 (01:22 +0000)]
Remove ConvertToMAttrImpl, it became too '-march'-specific.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121828
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Mikhail Glushenkov [Wed, 15 Dec 2010 01:22:25 +0000 (01:22 +0000)]
llvmc: Support -march arguments that should be forwarded to llc as -mcpu.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121827
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Mikhail Glushenkov [Wed, 15 Dec 2010 01:22:20 +0000 (01:22 +0000)]
llvmc: Better -mfpu/-mcpu support for ARM & PPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121826
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Mikhail Glushenkov [Wed, 15 Dec 2010 01:22:15 +0000 (01:22 +0000)]
llvmc: more complete -march table for ARM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121825
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Mikhail Glushenkov [Wed, 15 Dec 2010 01:22:10 +0000 (01:22 +0000)]
llvmc: Support -mabi/-mfloat-abi.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121824
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Mikhail Glushenkov [Wed, 15 Dec 2010 01:22:05 +0000 (01:22 +0000)]
llvmc: Forward -march/-mcpu/-mtune to as & ld.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121823
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Mikhail Glushenkov [Wed, 15 Dec 2010 01:21:59 +0000 (01:21 +0000)]
llvmc: make switch options ZeroOrMore by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121822
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Bill Wendling [Wed, 15 Dec 2010 01:03:19 +0000 (01:03 +0000)]
Reapply r121808 now that the missing patterns have been supplied.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121820
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Bill Wendling [Wed, 15 Dec 2010 00:58:57 +0000 (00:58 +0000)]
Add some missing patterns now that tLDRB and tLDRH are split into reg and
immediate versions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121819
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Owen Anderson [Wed, 15 Dec 2010 00:55:35 +0000 (00:55 +0000)]
Fix PR8790, another instance where unreachable code can cause instruction simplification to fail,
this case involve a select that simplifies to itself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121817
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Owen Anderson [Wed, 15 Dec 2010 00:52:44 +0000 (00:52 +0000)]
Cleanup trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121816
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Bill Wendling [Wed, 15 Dec 2010 00:04:00 +0000 (00:04 +0000)]
Revert r121808 until I can fix the build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121815
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Jim Grosbach [Tue, 14 Dec 2010 23:47:35 +0000 (23:47 +0000)]
thumb adr fixup needs alignment just like the t2 version.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121812
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Bill Wendling [Tue, 14 Dec 2010 23:42:48 +0000 (23:42 +0000)]
Comments and cleaning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121809
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Bill Wendling [Tue, 14 Dec 2010 23:40:49 +0000 (23:40 +0000)]
Make the ISel selections for LDR/STR the same as before the LDRr/LDRi split. In
particular, we want
ldr r2, [r3]
to be equivalent to
ldr r2, [r3, #0]
and not
ldr r2, [r3, r0]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121808
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Jakob Stoklund Olesen [Tue, 14 Dec 2010 23:38:19 +0000 (23:38 +0000)]
Simplify RegAllocGreedy's use of register aliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121807
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Jakob Stoklund Olesen [Tue, 14 Dec 2010 23:28:01 +0000 (23:28 +0000)]
Simplify CCState's use of register aliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121806
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Jakob Stoklund Olesen [Tue, 14 Dec 2010 23:23:15 +0000 (23:23 +0000)]
Simplify AggressiveAntiDepBreaker's use of register aliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121805
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Jakob Stoklund Olesen [Tue, 14 Dec 2010 23:10:48 +0000 (23:10 +0000)]
Simplyfy RegAllocBasic by using getOverlaps instead of getAliasSet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121801
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Jakob Stoklund Olesen [Tue, 14 Dec 2010 23:03:42 +0000 (23:03 +0000)]
Introduce TargetRegisterInfo::getOverlaps(Reg), returning a list of all
registers that alias Reg, including itself. This is almost the same as the
existing getAliasSet() method, except for the inclusion of Reg.
The name matches the reflexive TRI::regsOverlap(x, y) relation.
It is very common to do stuff to a register and all its aliases:
stuff(Reg)
for (const unsigned *Alias = TRI->getAliasSet(Reg); *Alias; ++Alias)
stuff(*Alias);
That can now be written as the simpler:
for (const unsigned *Alias = TRI->getOverlaps(Reg); *Alias; ++Alias)
stuff(*Alias);
This change requires a bit more constant space for the alias lists because Reg
is included and because the empty alias list cannot be shared any longer.
If the getAliasSet method is eventually removed, this space can be reclaimed by
sharing overlap lists. For instance, %rax and %eax have identical overlap sets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121800
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Jim Grosbach [Tue, 14 Dec 2010 22:28:03 +0000 (22:28 +0000)]
Add support for MC-ized encoding of tLEApcrel and tLEApcrelJT. rdar://
8755755
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121798
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Bill Wendling [Tue, 14 Dec 2010 22:26:49 +0000 (22:26 +0000)]
Fix comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121797
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Bill Wendling [Tue, 14 Dec 2010 22:10:49 +0000 (22:10 +0000)]
Multiclassify the LDR/STR encoding patterns. The only functionality difference
is the addition of the FoldableAsLoad & Rematerializable flags to some of the
load instructions. ARM has these flags set for them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121794
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Evan Cheng [Tue, 14 Dec 2010 21:34:53 +0000 (21:34 +0000)]
Fix a minor bug in two-address pass. It was missing a commute opportunity.
regB = move RCX
regA = op regB, regC
RAX = move regA
where both regB and regC are killed. If regB is constrainted to non-compatible
physical registers but regC is not constrainted at all, then it's better to
commute the instruction.
movl %edi, %eax
shlq $32, %rcx
leaq (%rcx,%rax), %rax
=>
movl %edi, %eax
shlq $32, %rcx
orq %rcx, %rax
rdar://
8762995
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121793
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Jim Grosbach [Tue, 14 Dec 2010 21:28:29 +0000 (21:28 +0000)]
trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121792
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Matt Beaumont-Gay [Tue, 14 Dec 2010 21:14:55 +0000 (21:14 +0000)]
Move debugging code entirely within DEBUG(). Silences an unused variable
warning in the opt build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121791
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Jim Grosbach [Tue, 14 Dec 2010 21:10:47 +0000 (21:10 +0000)]
Refactor a bit for legibility.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121790
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Jim Grosbach [Tue, 14 Dec 2010 20:46:39 +0000 (20:46 +0000)]
trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121789
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Jim Grosbach [Tue, 14 Dec 2010 20:45:47 +0000 (20:45 +0000)]
Make sure to propagate the predicate operands for LEApcrel to ADR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121788
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Owen Anderson [Tue, 14 Dec 2010 19:42:53 +0000 (19:42 +0000)]
Fix a small bug (typo?) in the fixup for Thumb1 CBZ/CBNZ instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121784
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Jakob Stoklund Olesen [Tue, 14 Dec 2010 19:38:49 +0000 (19:38 +0000)]
Add LiveIntervalUnion print methods, RegAllocGreedy::trySplit debug spew.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121783
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Jakob Stoklund Olesen [Tue, 14 Dec 2010 18:53:47 +0000 (18:53 +0000)]
Use TRI::printReg instead of AbstractRegisterDescription when printing
LiveIntervalUnions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121781
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Jakob Stoklund Olesen [Tue, 14 Dec 2010 18:53:39 +0000 (18:53 +0000)]
Add TargetRegisterInfo::printReg() to pretty-print registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121780
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Jim Grosbach [Tue, 14 Dec 2010 18:46:57 +0000 (18:46 +0000)]
ARM Fixups relative to thumb functions need to have the low bit of the value
set for interworking to work properly. rdar://
8755956
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121778
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Jakob Stoklund Olesen [Tue, 14 Dec 2010 17:47:36 +0000 (17:47 +0000)]
Q.seenAllInterferences() must be called after Q.collectInterferingVRegs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121774
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Daniel Dunbar [Tue, 14 Dec 2010 17:37:16 +0000 (17:37 +0000)]
MC/ARM: Fix-up fixup offset for fixup_arm_branch target specific fixup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121772
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Jim Grosbach [Tue, 14 Dec 2010 16:25:15 +0000 (16:25 +0000)]
Trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121769
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Bill Wendling [Tue, 14 Dec 2010 12:33:05 +0000 (12:33 +0000)]
Use the integer scheduling intrinsic for integer loads and stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121765
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Chris Lattner [Tue, 14 Dec 2010 08:46:09 +0000 (08:46 +0000)]
- Insert new instructions before DomBlock's terminator,
which is simpler than finding a place to insert in BB.
- Don't perform the 'if condition hoisting' xform on certain
i1 PHIs, as it interferes with switch formation.
This re-fixes "example 7", without breaking the world hopefully.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121764
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Chris Lattner [Tue, 14 Dec 2010 08:01:53 +0000 (08:01 +0000)]
fix two significant issues with FoldTwoEntryPHINode:
first, it can kick in on blocks whose conditions have been
folded to a constant, even though one of the edges will be
trivially folded.
second, it doesn't clean up the "if diamond" that it just
eliminated away. This is a problem because other simplifycfg
xforms kick in depending on the order of block visitation,
causing pointless work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121762
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Chris Lattner [Tue, 14 Dec 2010 07:53:03 +0000 (07:53 +0000)]
remove the instsimplify logic I added in r121754. It is apparently
breaking the selfhost builds, though I can't fathom how.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121761
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Chris Lattner [Tue, 14 Dec 2010 07:41:39 +0000 (07:41 +0000)]
clean up logic, convert std::set to SmallPtrSet, handle the case
when all 2-entry phis are simplified away.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121760
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Chris Lattner [Tue, 14 Dec 2010 07:23:10 +0000 (07:23 +0000)]
tidy up a bit, move DEBUG down to when we commit to doing the transform so we
don't print it unless the xform happens.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121758
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Chris Lattner [Tue, 14 Dec 2010 07:20:29 +0000 (07:20 +0000)]
use SimplifyInstruction instead of reimplementing part of it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121757
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Chris Lattner [Tue, 14 Dec 2010 07:15:21 +0000 (07:15 +0000)]
simplify GetIfCondition by using getSinglePredecessor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121756
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Chris Lattner [Tue, 14 Dec 2010 07:09:42 +0000 (07:09 +0000)]
use AddPredecessorToBlock in 3 places instead of a manual loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121755
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Chris Lattner [Tue, 14 Dec 2010 07:00:00 +0000 (07:00 +0000)]
make FoldTwoEntryPHINode use instsimplify a bit, make
GetIfCondition faster by avoiding pred_iterator. No
really interesting change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121754
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Chris Lattner [Tue, 14 Dec 2010 06:51:55 +0000 (06:51 +0000)]
remove the dead (and terrible) llvm::RemoveSuccessor function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121753
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Chris Lattner [Tue, 14 Dec 2010 06:17:25 +0000 (06:17 +0000)]
improve DEBUG's a bit, switch to eraseFromParent() to simplify
code a bit, switch from constant folding to instsimplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121751
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Chris Lattner [Tue, 14 Dec 2010 06:09:07 +0000 (06:09 +0000)]
fix yet anohter broken line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121750
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Chris Lattner [Tue, 14 Dec 2010 05:57:30 +0000 (05:57 +0000)]
reapply my recent change that disables a piece of the switch formation
work, but fixes 400.perlbmk.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121749
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Bill Wendling [Tue, 14 Dec 2010 03:36:38 +0000 (03:36 +0000)]
The tLDR et al instructions were emitting either a reg/reg or reg/imm
instruction based on the t_addrmode_s# mode and what it returned. There is some
obvious badness to this. In particular, it's hard to do MC-encoding when the
instruction may change out from underneath you after the t_addrmode_s# variable
is finally resolved.
The solution is to revert a long-ago change that merged the reg/reg and reg/imm
versions. There is the addition of several new addressing modes. They no longer
have extraneous operands associated with them. I.e., if it's reg/reg we don't
have to have a dummy zero immediate tacked on to the SDNode.
There are some obvious cleanups here, which will happen shortly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121747
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Evan Cheng [Tue, 14 Dec 2010 03:22:07 +0000 (03:22 +0000)]
bfi A, (and B, C1), C2) -> bfi A, B, C2 iff C1 & C2 == C1. rdar://
8458663
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121746
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Jason W Kim [Tue, 14 Dec 2010 01:42:38 +0000 (01:42 +0000)]
fix fixme case typo :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121743
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Jakob Stoklund Olesen [Tue, 14 Dec 2010 00:58:47 +0000 (00:58 +0000)]
Remove unused vector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121741
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Jakob Stoklund Olesen [Tue, 14 Dec 2010 00:55:51 +0000 (00:55 +0000)]
Add IntervalMap to the Programmer's Manual.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121740
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Jakob Stoklund Olesen [Tue, 14 Dec 2010 00:37:52 +0000 (00:37 +0000)]
Remove debugging code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121738
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Jakob Stoklund Olesen [Tue, 14 Dec 2010 00:37:49 +0000 (00:37 +0000)]
Try reassigning all virtual register interferences, not just those with lower
spill weight. Filter out fixed registers instead.
Add support for reassigning an interference that was assigned to an alias.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121737
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Jakob Stoklund Olesen [Tue, 14 Dec 2010 00:37:44 +0000 (00:37 +0000)]
Add stub for RAGreedy::trySplit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121736
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Owen Anderson [Tue, 14 Dec 2010 00:36:49 +0000 (00:36 +0000)]
Second attempt at make Thumb2 LEAs pseudos. This time, perform the lowering much later, which makes the entire
process cleaner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121735
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Owen Anderson [Mon, 13 Dec 2010 23:49:28 +0000 (23:49 +0000)]
Fix recent buildbot breakage by pulling SimplifyCFG back to its state as of r121694, the most recent state
where I'm confident there were no crashes or miscompilations. XFAIL the test added since then for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121733
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Jason W Kim [Mon, 13 Dec 2010 23:16:07 +0000 (23:16 +0000)]
First cut of ARM/MC/ELF PIC relocations.
Test has fixme, to move to .s -> .o test when AsmParser works better.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121732
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