Bill Wendling [Wed, 29 Feb 2012 01:46:50 +0000 (01:46 +0000)]
Restrict this transformation to equality conditions.
This transformation is not correct for not-equal conditions:
(trunc x) != C1 & (and x, CA) != C2 -> (and x, CA|CMAX) != C1|C2
Let
C1 == 0
C2 == 0
CA == 0xFF0000
CMAX == 0xFF
and truncating to i8.
The original truth table:
x | A: trunc x != 0 | B: x & 0xFF0000 != 0 | A & B != 0
--------------------------------------------------------------
0x00000 | 0 | 0 | 0
0x00001 | 1 | 0 | 0
0x10000 | 0 | 1 | 0
0x10001 | 1 | 1 | 1
The truth table of the replacement:
x | x & 0xFF00FF != 0
----------------------------
0x00000 | 0
0x00001 | 1
0x10000 | 1
0x10001 | 1
So they are different.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151691
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Wed, 29 Feb 2012 01:40:37 +0000 (01:40 +0000)]
Add an analyzeVirtReg() function.
This function does more or less the same as
MI::readsWritesVirtualRegister(), but it supports bundles as well.
It also determines if any constraint requires reading and writing
operands to use the same register. Most clients want to know.
Use the more modern MO.readsReg() instead of trying to sort out undefs
and partial redefines. Stop supporting the extra full <imp-def> operand
as an alternative to <def,undef> sub-register defines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151690
91177308-0d34-0410-b5e6-
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Derek Schuff [Wed, 29 Feb 2012 01:09:06 +0000 (01:09 +0000)]
Make MemoryObject accessor members const again
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151687
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Wed, 29 Feb 2012 00:46:46 +0000 (00:46 +0000)]
Support/PathV2: Fix namespace qualifier in make_absolute(), for Win32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151685
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Wed, 29 Feb 2012 00:33:41 +0000 (00:33 +0000)]
Move the operand iterator into MachineInstrBundle.h where it belongs.
Extract a base class and provide four specific sub-classes for iterating
over const/non-const bundles/instructions.
This eliminates the mystery bool constructor argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151684
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Wed, 29 Feb 2012 00:20:37 +0000 (00:20 +0000)]
Support/PathV2: Fix make_absolute() to match is_absolute() and not expect to
find root names on Unix.
- This fixes make_absolute to not basically always call current_path() on
Unix systems.
- I think the API probably needs cleanup in this area, but I'll let Michael
handle that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151681
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Wed, 29 Feb 2012 00:20:33 +0000 (00:20 +0000)]
Fix some stray semi-colons.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151680
91177308-0d34-0410-b5e6-
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Derek Schuff [Wed, 29 Feb 2012 00:07:09 +0000 (00:07 +0000)]
Fix PR12080 by ensuring that MaterializeModule actually reads all the bitcode
in the streaming case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151676
91177308-0d34-0410-b5e6-
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Michael J. Spencer [Wed, 29 Feb 2012 00:06:24 +0000 (00:06 +0000)]
[PathV2] Fix bug in relative_path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151675
91177308-0d34-0410-b5e6-
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Jim Grosbach [Tue, 28 Feb 2012 23:53:30 +0000 (23:53 +0000)]
ARM implement TargetInstrInfo::getNoopForMachoTarget()
Without this hook, functions w/ a completely empty body (including no
epilogue) will cause an MCEmitter assertion failure.
For example,
define internal fastcc void @empty_function() {
unreachable
}
rdar://
10947471
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151673
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Tue, 28 Feb 2012 23:52:31 +0000 (23:52 +0000)]
Instructions inside a bundle have the same number as the bundle itself.
SlotIndexes are not assigned to instructions inside bundles, but it is
still valid to look up the index of those instructions.
The reverse getInstructionFromIndex() will return the first instruction
in the bundle.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151672
91177308-0d34-0410-b5e6-
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David Meyer [Tue, 28 Feb 2012 23:47:53 +0000 (23:47 +0000)]
In the ObjectFile interface, replace isInternal(), isAbsolute(), isGlobal(), and isWeak(), with a bitset of flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151670
91177308-0d34-0410-b5e6-
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Rafael Espindola [Tue, 28 Feb 2012 23:32:06 +0000 (23:32 +0000)]
Enable -Wcovered-switch-default again, but add -Werror to the checks to make
sure we don't use it with compilers that don't support it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151665
91177308-0d34-0410-b5e6-
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Lang Hames [Tue, 28 Feb 2012 22:07:24 +0000 (22:07 +0000)]
Kill off LiveRangeEdit::getNewVRegs and LiveRangeEdit::getUselessVRegs. These
methods are no longer needed now that LinearScan has gone away.
(Contains tweaks trivialSpillEverywhere to enable the removal of getNewVRegs).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151658
91177308-0d34-0410-b5e6-
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Rafael Espindola [Tue, 28 Feb 2012 21:13:05 +0000 (21:13 +0000)]
On ELF, create relocations to the abbreviation and line sections when producing
debug info for assembly files. We were already doing the right thing when
producing debug info for C/C++.
ELF linkers don't know dwarf, so they depend on these relocations to produce
valid dwarf output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151655
91177308-0d34-0410-b5e6-
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Chandler Carruth [Tue, 28 Feb 2012 19:26:56 +0000 (19:26 +0000)]
Temporarily revert r151609, which enabled a new warning for LLVM and
Clang builds. The detection logic for compilers that support the warning
isn't working. Rafael is going to investigate it, but didn't want people
to have to wade through build spam until then.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151649
91177308-0d34-0410-b5e6-
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Jim Grosbach [Tue, 28 Feb 2012 19:11:07 +0000 (19:11 +0000)]
ARM vbit/vbif/vbsl assembly optional size suffix.
These instructions accept but do not require a size suffix.
rdar://
10947225
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151646
91177308-0d34-0410-b5e6-
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Evan Cheng [Tue, 28 Feb 2012 18:51:51 +0000 (18:51 +0000)]
Re-commit r151623 with fix. Only issue special no-return calls if it's a direct call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151645
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Tue, 28 Feb 2012 18:37:06 +0000 (18:37 +0000)]
Fix off-by one in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151644
91177308-0d34-0410-b5e6-
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Roman Divacky [Tue, 28 Feb 2012 18:15:25 +0000 (18:15 +0000)]
Properly MCize the section switch, removing a FIXME.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151639
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Tue, 28 Feb 2012 17:58:00 +0000 (17:58 +0000)]
LegalizeIntegerTypes: Reenable the large shift with small amount optimization.
To avoid problems with zero shifts when getting the bits that move between words
we use a trick: first shift the by amount-1, then do another shift by one. When
amount is 0 (and size 32) we first shift by 31, then by one, instead of by 32.
Also fix a latent bug that emitted the low and high words in the wrong order
when shifting right.
Fixes PR12113.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151637
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Tue, 28 Feb 2012 15:36:07 +0000 (15:36 +0000)]
Revert r151623 "Some ARM implementaions, e.g. A-series, does return stack prediction. ...", it is breaking the Clang build during the Compiler-RT part.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151630
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Tue, 28 Feb 2012 15:35:52 +0000 (15:35 +0000)]
Remove stray semi-colon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151629
91177308-0d34-0410-b5e6-
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Nadav Rotem [Tue, 28 Feb 2012 14:13:19 +0000 (14:13 +0000)]
Code cleanup following CR by Duncan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151627
91177308-0d34-0410-b5e6-
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Nadav Rotem [Tue, 28 Feb 2012 11:54:05 +0000 (11:54 +0000)]
Fix a bug in the code that builds SDNodes from vector GEPs.
When the GEP index is a vector of pointers, the code that calculated the size
of the element started from the vector type, and not the contained pointer type.
As a result, instead of looking at the data element pointed by the vector, this
code used the size of the vector. This works for 32bit members (on 32bit
systems), but not for other types. Added code to peel the vector type and
added a test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151626
91177308-0d34-0410-b5e6-
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Jia Liu [Tue, 28 Feb 2012 07:46:26 +0000 (07:46 +0000)]
remove blanks, and some code format
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151625
91177308-0d34-0410-b5e6-
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Evan Cheng [Tue, 28 Feb 2012 06:42:03 +0000 (06:42 +0000)]
Some ARM implementaions, e.g. A-series, does return stack prediction. That is,
the processor keeps a return addresses stack (RAS) which stores the address
and the instruction execution state of the instruction after a function-call
type branch instruction.
Calling a "noreturn" function with normal call instructions (e.g. bl) can
corrupt RAS and causes 100% return misprediction so LLVM should use a
unconditional branch instead. i.e.
mov lr, pc
b _foo
The "mov lr, pc" is issued in order to get proper backtrace.
rdar://
8979299
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151623
91177308-0d34-0410-b5e6-
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Craig Topper [Tue, 28 Feb 2012 06:32:00 +0000 (06:32 +0000)]
Convert generated intrinsic attributes to use an array lookup as Chris suggested in PR11951.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151622
91177308-0d34-0410-b5e6-
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Pete Cooper [Tue, 28 Feb 2012 05:06:24 +0000 (05:06 +0000)]
Reverted r152620 - DSE: Shorten memset when a later store overwrites the start of it. There were all sorts of buildbot issues
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151621
91177308-0d34-0410-b5e6-
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Pete Cooper [Tue, 28 Feb 2012 04:27:10 +0000 (04:27 +0000)]
DSE: Shorten memset when a later store overwrites the start of it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151620
91177308-0d34-0410-b5e6-
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Bill Wendling [Tue, 28 Feb 2012 04:01:21 +0000 (04:01 +0000)]
Oops...Don't commit the other stuff..
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151618
91177308-0d34-0410-b5e6-
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Bill Wendling [Tue, 28 Feb 2012 03:47:09 +0000 (03:47 +0000)]
Modify comment to reflect the importance of this code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151617
91177308-0d34-0410-b5e6-
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Akira Hatanaka [Tue, 28 Feb 2012 03:18:43 +0000 (03:18 +0000)]
Add comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151615
91177308-0d34-0410-b5e6-
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Akira Hatanaka [Tue, 28 Feb 2012 03:17:38 +0000 (03:17 +0000)]
Do not reserve $gp as a dedicated global base register if the target ABI is not O32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151614
91177308-0d34-0410-b5e6-
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Charles Davis [Tue, 28 Feb 2012 02:55:41 +0000 (02:55 +0000)]
Strip extraneous information, if present, from the linker version string on
Mac OS X. Patch by Fabian Groffen, with a slight tweak by me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151612
91177308-0d34-0410-b5e6-
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Akira Hatanaka [Tue, 28 Feb 2012 02:55:02 +0000 (02:55 +0000)]
Add support for floating point base register + offset register addressing mode
load and store instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151611
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Tue, 28 Feb 2012 02:08:50 +0000 (02:08 +0000)]
Handle regmasks in MachineCSE.
Don't attempt to extend physreg live ranges across calls.
<rdar://problem/
10942095>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151610
91177308-0d34-0410-b5e6-
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Rafael Espindola [Tue, 28 Feb 2012 02:01:55 +0000 (02:01 +0000)]
Enable -Wcovered-switch-default as it matches the switch style used in llvm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151609
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Tue, 28 Feb 2012 01:42:41 +0000 (01:42 +0000)]
Handle regmasks in the machine code verifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151607
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Tue, 28 Feb 2012 01:15:01 +0000 (01:15 +0000)]
Enable ARM base pointer when calling functions with large arguments.
When an outgoing call takes more than 2k of arguments on the stack, we
don't allocate that call frame in the prolog, but adjust the stack
pointer immediately before the call instead.
This causes problems with the emergency spill slot because PEI can't
track stack pointer adjustments on the second pass, and if the outgoing
arguments are too big, SP can't be used to reach the emergency spill
slot at all.
Work around these problems by ensuring there is a base or frame pointer
that can be used to access the emergency spill slot.
<rdar://problem/
10917166>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151604
91177308-0d34-0410-b5e6-
96231b3b80d8
Michael J. Spencer [Tue, 28 Feb 2012 00:40:37 +0000 (00:40 +0000)]
[Object] Add {begin,end}_dynamic_symbols stubs and implementation for ELF.
Add -D option to llvm-nm to dump dynamic symbols.
Patch by David Meyer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151600
91177308-0d34-0410-b5e6-
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Chad Rosier [Tue, 28 Feb 2012 00:23:01 +0000 (00:23 +0000)]
Fix 80-column violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151599
91177308-0d34-0410-b5e6-
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Hal Finkel [Mon, 27 Feb 2012 23:59:33 +0000 (23:59 +0000)]
Allow llvm-stress to optionally generate the other floating-point types (half, ppcf128, mmx, etc.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151596
91177308-0d34-0410-b5e6-
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Bill Wendling [Mon, 27 Feb 2012 23:48:30 +0000 (23:48 +0000)]
Add back removed code. It still causes LLVM to miscompile. But not having it breaks other things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151594
91177308-0d34-0410-b5e6-
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Preston Gurd [Mon, 27 Feb 2012 23:35:03 +0000 (23:35 +0000)]
This patch adds instruction latencies for the SSE instructions
to the instruction scheduler for the Intel Atom.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151590
91177308-0d34-0410-b5e6-
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Preston Gurd [Mon, 27 Feb 2012 23:31:51 +0000 (23:31 +0000)]
test commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151588
91177308-0d34-0410-b5e6-
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Eli Friedman [Mon, 27 Feb 2012 23:16:46 +0000 (23:16 +0000)]
Duncan pointed out that if the alignment isn't explicitly specified, it defaults to the ABI alignment. Given that, make this code a bit more aggressive in such cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151584
91177308-0d34-0410-b5e6-
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Evandro Menezes [Mon, 27 Feb 2012 23:00:52 +0000 (23:00 +0000)]
Delete incorrect reference to inexistent Hexagon architecture manuals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151582
91177308-0d34-0410-b5e6-
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Bill Wendling [Mon, 27 Feb 2012 22:55:40 +0000 (22:55 +0000)]
Don't use #if 0. Just remove until I can address this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151580
91177308-0d34-0410-b5e6-
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Bill Wendling [Mon, 27 Feb 2012 22:53:42 +0000 (22:53 +0000)]
XFAIL test until <rdar://problem/
10913281> is fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151578
91177308-0d34-0410-b5e6-
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Bill Wendling [Mon, 27 Feb 2012 22:34:19 +0000 (22:34 +0000)]
The code that cleans up multiple, isomorphic types has a subtle error that
manifests itself when building LLVM with LTO.
<rdar://problem/
10913281>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151576
91177308-0d34-0410-b5e6-
96231b3b80d8
Michael J. Spencer [Mon, 27 Feb 2012 22:06:44 +0000 (22:06 +0000)]
Remove duplicate copy of Object/ELF.h that somehow managed to get in.
Patch by David Meyer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151575
91177308-0d34-0410-b5e6-
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Evan Cheng [Mon, 27 Feb 2012 21:46:42 +0000 (21:46 +0000)]
Fix for PR12090: clear def maps of aliases when visiting a copy. e.g.
%S5<def> = COPY %S0<kill>
First clear def map of Q1, etc.
No small test case available.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151574
91177308-0d34-0410-b5e6-
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Jim Grosbach [Mon, 27 Feb 2012 21:36:23 +0000 (21:36 +0000)]
ARM BL/BLX instruction fixups should use relocations.
We on the linker to resolve calls to the appropriate BL/BLX instruction
to make interworking function correctly. It uses the symbol in the
relocation to do that, so we need to be careful about being too clever.
To enable this for ARM mode, split the BL/BLX fixup kind off from the
unconditional-branch fixups.
rdar://
10927209
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151571
91177308-0d34-0410-b5e6-
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Argyrios Kyrtzidis [Mon, 27 Feb 2012 21:08:33 +0000 (21:08 +0000)]
Move "clang/Analysis/Support/SaveAndRestore.h" to "llvm/ADT/SaveAndRestore.h"
to make it more widely available.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151564
91177308-0d34-0410-b5e6-
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Eli Friedman [Mon, 27 Feb 2012 20:46:07 +0000 (20:46 +0000)]
Teach BasicAA about the LLVM IR rules that allow reading past the end of an object given sufficient alignment. Fixes PR12098.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151553
91177308-0d34-0410-b5e6-
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Roman Divacky [Mon, 27 Feb 2012 20:42:19 +0000 (20:42 +0000)]
Test the section specification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151552
91177308-0d34-0410-b5e6-
96231b3b80d8
Derek Schuff [Mon, 27 Feb 2012 20:31:47 +0000 (20:31 +0000)]
Fix PR12089
http://llvm.org/bugs/show_bug.cgi?id=12089
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151550
91177308-0d34-0410-b5e6-
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Roman Divacky [Mon, 27 Feb 2012 20:20:47 +0000 (20:20 +0000)]
Reapply r151278 with fixes.
MCize function entry label emission on PowerPC64 properly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151547
91177308-0d34-0410-b5e6-
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Chad Rosier [Mon, 27 Feb 2012 19:43:12 +0000 (19:43 +0000)]
Add q suffix aliases for the fistp and fisttp mnemonics.
rdar://
10921670
PR11935
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151543
91177308-0d34-0410-b5e6-
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Akira Hatanaka [Mon, 27 Feb 2012 19:17:53 +0000 (19:17 +0000)]
Remove unnecessary template parameters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151540
91177308-0d34-0410-b5e6-
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Akira Hatanaka [Mon, 27 Feb 2012 19:09:08 +0000 (19:09 +0000)]
Fix instruction predicates that were not set correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151538
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Mon, 27 Feb 2012 18:24:30 +0000 (18:24 +0000)]
Update machine code verifier.
After the SlotIndex slot names were updated, it is possible to apply
stricter checks to live intervals.
Also treat bundles as bags of operands when checking live intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151531
91177308-0d34-0410-b5e6-
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Kevin Enderby [Mon, 27 Feb 2012 18:15:15 +0000 (18:15 +0000)]
Fix the symbolic operand added for the C disassmbler API for the ARM bl
thumb instruction. The PC adjustment is +4 in Thumb mode and +8 in ARM mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151530
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Mon, 27 Feb 2012 18:09:36 +0000 (18:09 +0000)]
Add a MachineOperand iterator class.
The MIOperands iterator can visit operands on a single instruction, or
all operands in a bundle. This simplifies code like the register
allocator that treats bundles as a set of operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151529
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Benjamin Kramer [Mon, 27 Feb 2012 12:48:24 +0000 (12:48 +0000)]
Plog a memleak in GlobalOpt.
Found by valgrind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151525
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Duncan Sands [Mon, 27 Feb 2012 12:11:41 +0000 (12:11 +0000)]
Micro-optimization, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151524
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Jay Foad [Mon, 27 Feb 2012 11:00:17 +0000 (11:00 +0000)]
Help the compiler to eliminate some dead code when hashing an array of T
where sizeof (T) is a multiple of 4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151523
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Duncan Sands [Mon, 27 Feb 2012 09:54:35 +0000 (09:54 +0000)]
The value numbering function is recursive, so it is possible for multiple new
value numbers to be assigned when calculating any particular value number.
Enhance the logic that detects new value numbers to take this into account,
for a tiny compile time speedup. Fix a comment typo while there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151522
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Duncan Sands [Mon, 27 Feb 2012 08:14:30 +0000 (08:14 +0000)]
When performing a conditional branch depending on the value of a comparison
%cmp (eg: A==B) we already replace %cmp with "true" under the true edge, and
with "false" under the false edge. This change enhances this to replace the
negated compare (A!=B) with "false" under the true edge and "true" under the
false edge. Reported to improve perlbench results by 1%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151517
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Craig Topper [Mon, 27 Feb 2012 02:59:43 +0000 (02:59 +0000)]
Remove HexagonGenIntrinsics.inc from Hexagon cmake file. It does not appear in the Makefile and the output it produces isn't used. The Hexagon intrinsics are all in the global Intrinsics.gen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151514
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Craig Topper [Mon, 27 Feb 2012 02:31:09 +0000 (02:31 +0000)]
Update tblgen command guide. Remove unused tblgen InstrEnumEmitter files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151513
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Jia Liu [Mon, 27 Feb 2012 02:21:34 +0000 (02:21 +0000)]
delete useless comment&blank
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151512
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Rafael Espindola [Mon, 27 Feb 2012 02:13:03 +0000 (02:13 +0000)]
Fix this assert. IP can point to an instruction with strange dominance
properties (invoke). Just assert that the instruction we return dominates
the insertion point.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151511
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Craig Topper [Mon, 27 Feb 2012 01:54:29 +0000 (01:54 +0000)]
X86 disassembler support for jcxz, jecxz, and jrcxz. Fixes PR11643. Patch by Kay Tiong Khoo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151510
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Chad Rosier [Sun, 26 Feb 2012 22:26:37 +0000 (22:26 +0000)]
Remove more GCC FE build stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151507
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Chad Rosier [Sun, 26 Feb 2012 22:17:05 +0000 (22:17 +0000)]
Installing the GCC front end is no longer supported.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151506
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Chad Rosier [Sun, 26 Feb 2012 22:12:59 +0000 (22:12 +0000)]
Cleanup the LLVM Getting Started page.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151505
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Chad Rosier [Sun, 26 Feb 2012 21:34:02 +0000 (21:34 +0000)]
Add href to clang in overview.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151503
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Chad Rosier [Sun, 26 Feb 2012 21:31:25 +0000 (21:31 +0000)]
Remove references to llvm-gcc from overview and tutorial.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151502
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Nadav Rotem [Sun, 26 Feb 2012 13:56:18 +0000 (13:56 +0000)]
Add support for random constant vectors.
Patch by Joey Gouly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151489
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Nadav Rotem [Sun, 26 Feb 2012 12:34:17 +0000 (12:34 +0000)]
Style fix: Remove unneeded parentheses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151488
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Nadav Rotem [Sun, 26 Feb 2012 12:00:22 +0000 (12:00 +0000)]
Fix a bug in the code that checks if a store value is a vector of i1s
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151487
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Nadav Rotem [Sun, 26 Feb 2012 08:59:25 +0000 (08:59 +0000)]
Fix compilation on MSVC. Rename "_BB" to "Block"
Thanks zygoloid.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151481
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Nadav Rotem [Sun, 26 Feb 2012 08:43:43 +0000 (08:43 +0000)]
fix a copy-and-paste error in the docs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151480
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Nadav Rotem [Sun, 26 Feb 2012 08:35:53 +0000 (08:35 +0000)]
Add a random .LL file generator to stress-test different llvm components.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151479
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Rafael Espindola [Sun, 26 Feb 2012 05:49:57 +0000 (05:49 +0000)]
Add testcase for the previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151475
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Rafael Espindola [Sun, 26 Feb 2012 05:30:08 +0000 (05:30 +0000)]
Don't call dominates on unreachable instructions. Should fix the dragonegg
build. Testcase is still reducing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151474
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Hal Finkel [Sun, 26 Feb 2012 04:13:31 +0000 (04:13 +0000)]
Default TargetData alignment information for 128-bit floating-point types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151473
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Rafael Espindola [Sun, 26 Feb 2012 02:36:56 +0000 (02:36 +0000)]
And update the comment...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151472
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Rafael Espindola [Sun, 26 Feb 2012 02:29:18 +0000 (02:29 +0000)]
Enable the assert that got all this dominator work started.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151471
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Rafael Espindola [Sun, 26 Feb 2012 02:23:37 +0000 (02:23 +0000)]
Use the DT dominates function in the verifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151470
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Rafael Espindola [Sun, 26 Feb 2012 02:19:19 +0000 (02:19 +0000)]
Change the implementation of dominates(inst, inst) to one based on what the
verifier does. This correctly handles invoke.
Thanks to Duncan, Andrew and Chris for the comments.
Thanks to Joerg for the early testing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151469
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Rafael Espindola [Sun, 26 Feb 2012 02:14:25 +0000 (02:14 +0000)]
Don't call dominates on unreachable instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151468
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Nick Lewycky [Sun, 26 Feb 2012 02:09:49 +0000 (02:09 +0000)]
Reinstate the optimization from r151449 with a fix to not turn 'gep %x' into
'gep null' when the icmp predicate is unsigned (or is signed without inbounds).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151467
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Rafael Espindola [Sun, 26 Feb 2012 01:50:14 +0000 (01:50 +0000)]
Don't call dominates on unreachable instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151466
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Nick Lewycky [Sat, 25 Feb 2012 23:01:19 +0000 (23:01 +0000)]
Roll these back to r151448 until I figure out how they're breaking
MultiSource/Applications/lua.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151463
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Nick Lewycky [Sat, 25 Feb 2012 20:19:07 +0000 (20:19 +0000)]
An argument and a local identified object (eg. a noalias call) could turn out
equal if both are null. In the test, scope type %t and global @y by adding a
'gep' prefix to them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151452
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Nick Lewycky [Sat, 25 Feb 2012 19:12:58 +0000 (19:12 +0000)]
Fix five-letter typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151450
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Nick Lewycky [Sat, 25 Feb 2012 19:07:42 +0000 (19:07 +0000)]
Teach instsimplify to be more aggressive when analyzing comparisons of pointers
by using llvm::isIdentifiedObject. Also teach it to handle GEPs that have
the same base pointer and constant operands. Fixes PR11238!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151449
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