Chris Lattner [Tue, 8 Jul 2008 17:18:32 +0000 (17:18 +0000)]
Fix PR2496, a really nasty bug which involved sinking volatile loads
into phis. This is actually the same bug as PR2262 /
2008-04-29-VolatileLoadDontMerge.ll, but I missed checking the first
predecessor for multiple successors. Testcase here:
InstCombine/2008-07-08-VolatileLoadMerge.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53240
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Chris Lattner [Tue, 8 Jul 2008 17:18:05 +0000 (17:18 +0000)]
new testcase for PR2496
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53239
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Evan Cheng [Tue, 8 Jul 2008 16:40:43 +0000 (16:40 +0000)]
Unbreak C++ tests on x86 Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53237
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Owen Anderson [Tue, 8 Jul 2008 16:38:42 +0000 (16:38 +0000)]
Global variables beginning with \01 have special meaning on Darwin, so we need to remove
the name prefix when we change them from internal to external. This allows bugpointing
of codegen miscompilations to work more reliably on Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53236
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Duncan Sands [Tue, 8 Jul 2008 10:50:55 +0000 (10:50 +0000)]
LegalizeTypes support for FP_ROUND and FP_EXTEND
soft float.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53231
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Duncan Sands [Tue, 8 Jul 2008 10:11:36 +0000 (10:11 +0000)]
Testcase for PR2520.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53230
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Duncan Sands [Tue, 8 Jul 2008 09:41:30 +0000 (09:41 +0000)]
Add some helpers for manipulating function
parameter attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53228
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Duncan Sands [Tue, 8 Jul 2008 09:33:14 +0000 (09:33 +0000)]
Pacify gcc-4.3.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53227
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Duncan Sands [Tue, 8 Jul 2008 09:27:25 +0000 (09:27 +0000)]
Note that 'nest' only applies to pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53226
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Matthijs Kooijman [Tue, 8 Jul 2008 08:51:47 +0000 (08:51 +0000)]
Add CallSite::getArgumentNo() to be able to translate an operand number into a
argument number.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53225
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Matthijs Kooijman [Tue, 8 Jul 2008 08:50:32 +0000 (08:50 +0000)]
Add CallSite::getArgumentOffset() to hide the differences in operands betwen
Call and Invoke in a single method instead of having it hardcoded in multiple
places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53224
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Duncan Sands [Tue, 8 Jul 2008 08:38:44 +0000 (08:38 +0000)]
Add some convenience methods for manipulating
call attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53223
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Chris Lattner [Tue, 8 Jul 2008 05:46:34 +0000 (05:46 +0000)]
Fix three bugs:
1) evaluate [v]fcmp true/false with undefs to true or false instead
of undef.
2) fix vector comparisons with undef to return a vector result instead
of i1
3) fix vector comparisons with evaluatable results to return vector
true/false instead of i1 true/false (PR2529)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53220
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Chris Lattner [Tue, 8 Jul 2008 05:12:37 +0000 (05:12 +0000)]
clarify :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53218
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Nick Lewycky [Tue, 8 Jul 2008 05:05:37 +0000 (05:05 +0000)]
Expand SCEVUDiv of power of 2 to a lshr instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53217
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Evan Cheng [Tue, 8 Jul 2008 00:55:58 +0000 (00:55 +0000)]
Avoid unnecessary string construction during asm printing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53215
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Nick Kledzik [Mon, 7 Jul 2008 23:24:06 +0000 (23:24 +0000)]
add _lto_codegen_debug_options so that linker can use it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53213
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Dan Gohman [Mon, 7 Jul 2008 23:14:23 +0000 (23:14 +0000)]
Pool-allocation for MachineInstrs, MachineBasicBlocks, and
MachineMemOperands. The pools are owned by MachineFunctions.
This drastically reduces the number of calls to malloc/free made
during the "Emit" phase of scheduling, as well as later phases
in CodeGen. Combined with other changes, this speeds up the
"instruction selection" phase of CodeGen by 10% in some cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53212
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Dan Gohman [Mon, 7 Jul 2008 23:02:41 +0000 (23:02 +0000)]
Pool-allocation for SDNodes. The pool is allocated once for each function,
and reused across SelectionDAGs.
This drastically reduces the number of calls to malloc/free made during
instruction selection, and improves memory locality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53211
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Dan Gohman [Mon, 7 Jul 2008 22:58:06 +0000 (22:58 +0000)]
Add some basic Pool-allocation infrastructure. This adds a Recycler class,
for handling bookkeeping for deleted objects, as well as the alist class
template, for keeping lists of objects allocated from Recyclers, and some
related utilities.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53210
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Evan Cheng [Mon, 7 Jul 2008 22:22:07 +0000 (22:22 +0000)]
Clean up PPC register specification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53209
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Evan Cheng [Mon, 7 Jul 2008 22:21:06 +0000 (22:21 +0000)]
ATT asm printer just print register AsmName's instead of calling tolower on each charater of Name. This speeds it up by 10%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53208
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Evan Cheng [Mon, 7 Jul 2008 22:19:41 +0000 (22:19 +0000)]
TargetRegisterDesc::Name field is the same as the abstract register name. There is no need for targets to specify register names in addition to their AsmName's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53207
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Bill Wendling [Mon, 7 Jul 2008 21:41:57 +0000 (21:41 +0000)]
Use the canonical way to get an empty structure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53206
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Dan Gohman [Mon, 7 Jul 2008 21:00:17 +0000 (21:00 +0000)]
Refactor the tablegen DAGISelEmitter code for outputing calls to
getTargetNode and SelectNodeTo to reduce duplication, and to
make some of the getTargetNode code available to SelectNodeTo.
Use SelectNodeTo instead of getTargetNode in several new
interesting cases, as it mutates nodes in place instead of
creating new ones.
This triggers some scheduling behavior differences due to nodes
being presented to the scheduler in a different order. Some of the
arbitrary scheduling decisions it makes are now arbitrarily made
differently. This is visible in CodeGen/PowerPC/LargeAbsoluteAddr.ll,
where a trivial scheduling difference led to a trivial register
allocation difference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53203
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Bill Wendling [Mon, 7 Jul 2008 20:59:31 +0000 (20:59 +0000)]
Use StringMap for greater justice!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53202
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Dan Gohman [Mon, 7 Jul 2008 20:57:48 +0000 (20:57 +0000)]
Fix SDNode::MorphNodeTo (a function used by by SelectNodeTo) to
properly track dead nodes that are on the original SDNode's operand
list but not the new one, and have no other uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53201
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Dan Gohman [Mon, 7 Jul 2008 20:32:02 +0000 (20:32 +0000)]
Move MachineMemOperand's constructor out of line, to avoid a
#include dependency on Support/MathExtras.h in the header file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53200
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Dan Gohman [Mon, 7 Jul 2008 20:09:12 +0000 (20:09 +0000)]
Simplify this use of BuildMI. This is also in preparation for
pool-allocating MachineInstrs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53198
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Dan Gohman [Mon, 7 Jul 2008 20:08:05 +0000 (20:08 +0000)]
Use of operator* is redundant and confusing here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53197
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Dan Gohman [Mon, 7 Jul 2008 20:06:06 +0000 (20:06 +0000)]
Minor const-correctness fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53196
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Dan Gohman [Mon, 7 Jul 2008 20:05:04 +0000 (20:05 +0000)]
Shrink MachineMemOperand by storing the alignment in log form
and rearranging the fields.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53195
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Dan Gohman [Mon, 7 Jul 2008 19:55:35 +0000 (19:55 +0000)]
Assert that all MachineInstrs update PhysRegUseDefLists in
their cleanup code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53194
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Evan Cheng [Mon, 7 Jul 2008 19:51:32 +0000 (19:51 +0000)]
Fix two serious LSR bugs.
1. LSR runOnLoop is always returning false regardless if any transformation is made.
2. AddUsersIfInteresting can create new instructions that are added to DeadInsts. But there is a later early exit which prevents them from being freed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53193
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Bruno Cardoso Lopes [Mon, 7 Jul 2008 19:11:24 +0000 (19:11 +0000)]
fixed 32-bit fp_to_sint pattern
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53192
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Dan Gohman [Mon, 7 Jul 2008 18:43:32 +0000 (18:43 +0000)]
Make ilist noncopyable too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53190
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Dan Gohman [Mon, 7 Jul 2008 18:39:33 +0000 (18:39 +0000)]
Don't use std::advance just to increment or decrement by one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53189
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Dan Gohman [Mon, 7 Jul 2008 18:38:14 +0000 (18:38 +0000)]
Make BumpPtrAllocator noncopyable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53188
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Dan Gohman [Mon, 7 Jul 2008 18:34:27 +0000 (18:34 +0000)]
Add a space between * and /* to help simple-minded lexers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53187
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Dan Gohman [Mon, 7 Jul 2008 18:26:29 +0000 (18:26 +0000)]
Remove most of the uses of SDOperandPtr, usually replacing it with a
simple const SDOperand*, which is what's usually needed.
For AddNodeIDOperands, which is small, just duplicate the function to
accept an SDUse*.
For SelectionDAG::getNode - Add an overload that accepts SDUse* that
copies the operands into a temporary SDOperand array, but also has
special-case checks for 0 through 3 operands to avoid the copy in
the common cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53183
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Dan Gohman [Mon, 7 Jul 2008 18:14:29 +0000 (18:14 +0000)]
Remove uses of "llvm/Support/Debug.h" from LLVM include files, which
all happened be unnecessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53182
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Dan Gohman [Mon, 7 Jul 2008 18:08:20 +0000 (18:08 +0000)]
Remove unnecessary static_casts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53181
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Dan Gohman [Mon, 7 Jul 2008 18:07:36 +0000 (18:07 +0000)]
Remove an unnecessary reinterpret_cast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53180
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Dan Gohman [Mon, 7 Jul 2008 18:00:37 +0000 (18:00 +0000)]
Add explicit keywords.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53179
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Dan Gohman [Mon, 7 Jul 2008 17:52:43 +0000 (17:52 +0000)]
Use empty() instead of size().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53178
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Dan Gohman [Mon, 7 Jul 2008 17:46:23 +0000 (17:46 +0000)]
Make DenseMap's insert return a pair, to more closely resemble std::map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53177
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Ted Kremenek [Mon, 7 Jul 2008 16:20:55 +0000 (16:20 +0000)]
Removed ImmutableMap::SlimFind and replaced it with ImmutableMap::lookup. The new method does the same thing, except that it returns a pointer to the mapped data type, and not to an internal tree node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53171
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Evan Cheng [Mon, 7 Jul 2008 07:18:09 +0000 (07:18 +0000)]
LegalizeSetCCOperands should legalize the result of ExpandLibCall. Patch by Richard Osborne.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53169
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Nick Lewycky [Mon, 7 Jul 2008 06:15:49 +0000 (06:15 +0000)]
Handle 'lshr' instruction with SCEVUDiv object.
Comment the xor %x, -1 case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53167
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Bill Wendling [Mon, 7 Jul 2008 05:42:27 +0000 (05:42 +0000)]
Prevent option name conflict.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53166
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Duncan Sands [Mon, 7 Jul 2008 00:08:12 +0000 (00:08 +0000)]
LegalizeTypes soft-float support for stores of a
float value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53165
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Anton Korobeynikov [Sat, 5 Jul 2008 23:48:30 +0000 (23:48 +0000)]
Add convenient helper for checking whether global is weak in linker sense
having weak or linkonce or common or extweak LLVM linkage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53158
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Anton Korobeynikov [Sat, 5 Jul 2008 23:33:40 +0000 (23:33 +0000)]
Testcase for PR2463
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53157
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Anton Korobeynikov [Sat, 5 Jul 2008 23:33:22 +0000 (23:33 +0000)]
Override weak stuff during linking of aliases. This fixes PR2463.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53156
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Anton Korobeynikov [Sat, 5 Jul 2008 23:03:46 +0000 (23:03 +0000)]
Testcase for PR2146
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53155
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Anton Korobeynikov [Sat, 5 Jul 2008 23:03:21 +0000 (23:03 +0000)]
Properly link alias and function decls. This fixes PR2146
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53154
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Nick Lewycky [Sat, 5 Jul 2008 22:41:37 +0000 (22:41 +0000)]
80col
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53153
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Nick Lewycky [Sat, 5 Jul 2008 21:19:34 +0000 (21:19 +0000)]
Fix missed optimization opportunity when analyzing cast of mul and select.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53151
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Mon P Wang [Sat, 5 Jul 2008 20:40:31 +0000 (20:40 +0000)]
Fixed generating incorrect aligned stores that I backout of r53031
that fixed problems in EmitStackConvert where the source and target type
have different alignment by creating a stack slot with the max
alignment of source and target type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53150
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Bruno Cardoso Lopes [Sat, 5 Jul 2008 19:05:21 +0000 (19:05 +0000)]
Several changes to Mips backend, experimental fp support being the most
important.
- Cleanup in the Subtarget info with addition of new features, not all support
yet, but they allow the future inclusion of features easier. Among new features,
we have : Arch family info (mips1, mips2, ...), ABI info (o32, eabi), 64-bit
integer
and float registers, allegrex vector FPU (VFPU), single float only support.
- TargetMachine now detects allegrex core.
- Added allegrex (Mips32r2) sext_inreg instructions.
- *Added Float Point Instructions*, handling single float only, and
aliased accesses for 32-bit FPUs.
- Some cleanup in FP instruction formats and FP register classes.
- Calling conventions improved to support mips 32-bit EABI.
- Added Asm Printer support for fp cond codes.
- Added support for sret copy to a return register.
- EABI support added into LowerCALL and FORMAL_ARGS.
- MipsFunctionInfo now keeps a virtual register per function to track the
sret on function entry until function ret.
- MipsInstrInfo FP support into methods (isMoveInstr, isLoadFromStackSlot, ...),
FP cond codes mapping and initial FP Branch Analysis.
- Two new Mips SDNode to handle fp branch and compare instructions : FPBrcond,
FPCmp
- MipsTargetLowering : handling different FP classes, Allegrex support, sret
return copy, no homing location within EABI, non 32-bit stack objects
arguments, and asm constraint for float.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53146
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Duncan Sands [Fri, 4 Jul 2008 11:47:58 +0000 (11:47 +0000)]
Rather than having a different custom legalization
hook for each way in which a result type can be
legalized (promotion, expansion, softening etc),
just use one: ReplaceNodeResults, which returns
a node with exactly the same result types as the
node passed to it, but presumably with a bunch of
custom code behind the scenes. No change if the
new LegalizeTypes infrastructure is not turned on.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53137
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Duncan Sands [Fri, 4 Jul 2008 09:55:48 +0000 (09:55 +0000)]
Linux also does not require exception handling
moves in order to get correct debug info. Since
I can't imagine how any target could possibly
be any different, I've just stripped out the
option: now all the world's like Darwin!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53134
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Bill Wendling [Thu, 3 Jul 2008 23:13:02 +0000 (23:13 +0000)]
Don't return std::vector by value, but pass it in by reference to be filled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53123
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Bill Wendling [Thu, 3 Jul 2008 22:53:42 +0000 (22:53 +0000)]
Revert my previous check-in that split up MachineModuleInfo. It turns out to
slow the compiler down at -O0 some 30% or more. Ooops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53120
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Devang Patel [Thu, 3 Jul 2008 22:53:14 +0000 (22:53 +0000)]
Provide a hook to set the code generation debug options to investigate lto failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53119
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Evan Cheng [Thu, 3 Jul 2008 18:20:14 +0000 (18:20 +0000)]
Backed out 53031.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53110
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Evan Cheng [Thu, 3 Jul 2008 18:11:29 +0000 (18:11 +0000)]
Back out 53091 for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53109
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Owen Anderson [Thu, 3 Jul 2008 17:44:33 +0000 (17:44 +0000)]
Use information already present in the ValueTable to fast-fail when we know there won't be a value number match. This speeds up GVN on a case where there are very few redundancies by ~25%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53108
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Devang Patel [Thu, 3 Jul 2008 17:37:52 +0000 (17:37 +0000)]
Do not try to update dominator info while manipulating CFG. This code does not handle all cases and keeps invalid dom info around some cases, which misleads other passes down stream.
Right now, dom info is recaluclated in the end if the loop is switched.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53106
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Owen Anderson [Thu, 3 Jul 2008 17:21:41 +0000 (17:21 +0000)]
Remove the ability for ADCE to remove unreachable blocks in loop nests, because, as Eli pointed out, SimplifyCFG already does this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53104
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Evan Cheng [Thu, 3 Jul 2008 09:09:37 +0000 (09:09 +0000)]
- Remove calls to copyKillDeadInfo which is an N^2 function. Instead, propagate kill / dead markers as new instructions are constructed in foldMemoryOperand, convertToThressAddress, etc.
- Also remove LiveVariables::instructionChanged, etc. Replace all calls with cheaper calls which update VarInfo kill list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53097
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Evan Cheng [Thu, 3 Jul 2008 08:39:51 +0000 (08:39 +0000)]
isel load folding is disabled at -fast. Now hoist the check up to the top level to save some time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53096
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Matthijs Kooijman [Thu, 3 Jul 2008 07:46:41 +0000 (07:46 +0000)]
Add newline at the end of Constants.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53092
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Anton Korobeynikov [Thu, 3 Jul 2008 07:43:14 +0000 (07:43 +0000)]
llvm-gcc sometimes marks external declarations hidden, because intializers are
processed separately. Honour such situation and emit PIC relocations properly
in such case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53091
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Bill Wendling [Thu, 3 Jul 2008 07:10:03 +0000 (07:10 +0000)]
Remove unused function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53090
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Devang Patel [Thu, 3 Jul 2008 07:04:22 +0000 (07:04 +0000)]
Preserve dom info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53089
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Devang Patel [Thu, 3 Jul 2008 07:02:30 +0000 (07:02 +0000)]
Keep track of inherited analysis (e.g. dominator tree).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53088
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Devang Patel [Thu, 3 Jul 2008 06:50:04 +0000 (06:50 +0000)]
Remove extra FIXME
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53087
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Devang Patel [Thu, 3 Jul 2008 06:48:21 +0000 (06:48 +0000)]
Reconstruct dom info, if loop is unswitched.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53086
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Devang Patel [Thu, 3 Jul 2008 05:55:03 +0000 (05:55 +0000)]
LoopUnswitch does not preserve dominator info in all cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53085
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Dan Gohman [Thu, 3 Jul 2008 01:18:51 +0000 (01:18 +0000)]
Reapply r52988, "Simplify addRegisterKilled and addRegisterDead." The
254.gap failure was not due to this mod.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53068
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Dan Gohman [Thu, 3 Jul 2008 00:59:36 +0000 (00:59 +0000)]
Use operator new instead of new char[].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53067
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Dan Gohman [Thu, 3 Jul 2008 00:53:09 +0000 (00:53 +0000)]
Use operator new instead of new char[].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53066
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Dan Gohman [Thu, 3 Jul 2008 00:52:03 +0000 (00:52 +0000)]
Avoid unnecessarily copying APInt objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53065
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Dan Gohman [Thu, 3 Jul 2008 00:51:05 +0000 (00:51 +0000)]
Correct a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53064
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Evan Cheng [Thu, 3 Jul 2008 00:28:27 +0000 (00:28 +0000)]
Use std::replace instead of std::find and push_back.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53063
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Devang Patel [Thu, 3 Jul 2008 00:08:13 +0000 (00:08 +0000)]
Undo previous patch. It is not that simple to fix dom info here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53062
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Evan Cheng [Thu, 3 Jul 2008 00:07:19 +0000 (00:07 +0000)]
- Add LiveVariables::replaceKillInstruction. This does a subset of instructionChanged. That is, it only update the VarInfo.kills if the new instruction is known to have the correct dead and kill markers.
- CommuteInstruction copies kill / dead markers over to new instruction. So use replaceKillInstruction instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53061
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Evan Cheng [Thu, 3 Jul 2008 00:04:51 +0000 (00:04 +0000)]
commuteInstruction should preserve dead markers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53060
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Owen Anderson [Wed, 2 Jul 2008 23:41:07 +0000 (23:41 +0000)]
Make LiveVariables even more optional, by making it optional in the call to TargetInstrInfo::convertToThreeAddressInstruction
Also, if LV isn't around, then TwoAddr doesn't need to be updating flags, since they won't have been set in the first place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53058
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Dan Gohman [Wed, 2 Jul 2008 23:23:19 +0000 (23:23 +0000)]
Replace a few uses of SelectionDAG::getTargetNode with
SelectionDAG::SelectNodeTo in the instruction selector. This
updates existing nodes in place instead of creating new ones.
Go back to selecting ISD::DBG_LABEL nodes into
TargetInstrInfo::DBG_LABEL nodes instead of leaving them
unselected, now that SelectNodeTo allows us to update them
in place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53057
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Devang Patel [Wed, 2 Jul 2008 22:58:54 +0000 (22:58 +0000)]
Preserve dom info while simplifing loop after the unswitch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53052
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Eric Christopher [Wed, 2 Jul 2008 22:57:59 +0000 (22:57 +0000)]
Add a couple more helper functions to deal with
creating global constant strings and pointers
to global constant strings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53051
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Dan Gohman [Wed, 2 Jul 2008 22:12:55 +0000 (22:12 +0000)]
Revert r52988. It broke 254.gap on x86-64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53050
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Owen Anderson [Wed, 2 Jul 2008 21:28:58 +0000 (21:28 +0000)]
TwoAddressInstructionPass doesn't really require LiveVariables, it just needs to update it if it's already around.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53049
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Chuck Rose III [Wed, 2 Jul 2008 21:02:51 +0000 (21:02 +0000)]
VStudio x64 build fixes. Looks like the x64 projects got out of date and this brings them up to code. I've built the project with these new vcproj files for win32 and x64 both debug and release.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53047
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Owen Anderson [Wed, 2 Jul 2008 18:42:07 +0000 (18:42 +0000)]
Use ADCE instead of just DCE. ADCE will better clean up after jump threading,
for instance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53045
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Owen Anderson [Wed, 2 Jul 2008 18:41:09 +0000 (18:41 +0000)]
Use df_ext_iterator to capture the reachable set without allocating an extra set.
Also, move large sets and vectors out of instance variables and onto the stack,
and give them more reasonable sizes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53044
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Owen Anderson [Wed, 2 Jul 2008 18:15:31 +0000 (18:15 +0000)]
Avoid a redundant call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53040
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Owen Anderson [Wed, 2 Jul 2008 18:05:19 +0000 (18:05 +0000)]
Add support to ADCE for pruning unreachable blocks. This addresses the final
part of PR2509.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53038
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