9794fdfab0
Revert 93648.
...
Mangler::getMangledName is used from lto
Mangler::setUseQuotes is used in the AsmPrinter
Mangler::setSymbolsCanStartWithDigit is used in the AsmPrinter
llvm-svn: 93652
2010-01-16 20:27:59 +00:00
8b27547d6d
Mangler::getMangledName is now dead, remove it and all the other stuff in Mangler that is now transitively dead. woo.
...
llvm-svn: 93648
2010-01-16 19:08:51 +00:00
06d45f6e75
Change DIEObjectLabel to take an MCSymbol instead of std::string.
...
llvm-svn: 93647
2010-01-16 18:50:28 +00:00
555ceabe64
rename GetPrivateGlobalValueSymbolStub -> GetSymbolWithGlobalValueBase,
...
and add an explicit ForcePrivate argument.
Switch FunctionEHFrameInfo to be MCSymbol based instead of string based.
llvm-svn: 93646
2010-01-16 18:37:32 +00:00
8a1f23af11
eliminate uses of getMangledName from AsmPrinter.cpp, last up is
...
dwarf emission which is going to be more invasive.
llvm-svn: 93645
2010-01-16 18:17:26 +00:00
9787fd0468
switch liblto to use the new getNameWithPrefix() method instead of getMangledName.
...
llvm-svn: 93643
2010-01-16 18:12:14 +00:00
d3a2163069
add an inefficient version of getNameWithPrefix that returns an std::string.
...
llvm-svn: 93641
2010-01-16 18:06:34 +00:00
41cab696fc
Revive dead assert.
...
llvm-svn: 93638
2010-01-16 16:14:55 +00:00
803c60c012
Provide magic define on mingw to not generate inline variants of ctyper functions.
...
Otherwise we'll end with random cyclic deps between libraries due to this.
Proposed by Gianluigi Tiesi!
llvm-svn: 93635
2010-01-16 14:06:58 +00:00
b478d3e0fc
Fix PR6047
...
Nodes that had children outside of the post dominator tree (infinite loops)
where removed from the post dominator tree. This seems to be wrong. Leave them
in the tree.
llvm-svn: 93633
2010-01-16 13:38:07 +00:00
53da3f8da8
Create Generic DOTGraphTraits Printer/Viewer
...
Move the DOTGraphTraits dotty printer/viewer templates, that were developed for
the dominance tree into their own header file. This will allow reuse in future
passes.
llvm-svn: 93632
2010-01-16 10:56:41 +00:00
814b7e7488
No need to use WeakVH here.
...
llvm-svn: 93631
2010-01-16 06:17:40 +00:00
c0e17df3ce
Replace DebugLocTuple with DILocation.
...
llvm-svn: 93630
2010-01-16 06:09:35 +00:00
a44d8f806b
fix build failure.
...
llvm-svn: 93628
2010-01-16 03:38:27 +00:00
32c9512132
remove a couple of actively incorrect uses of getMangledName.
...
llvm-svn: 93627
2010-01-16 02:16:09 +00:00
3a3480fa53
this doesn't need the mangler.
...
llvm-svn: 93626
2010-01-16 02:15:38 +00:00
3d571ff970
more string -> sym, getMangledName is now gone from this file.
...
llvm-svn: 93624
2010-01-16 02:09:06 +00:00
1e26ec35d7
use symbols instead of strings, eliminating a bunch of getMangledName
...
calls. Add FIXMEs about a bunch of nondeterminism in stub output.
llvm-svn: 93621
2010-01-16 02:00:23 +00:00
e4e85a4e75
simplify some code.
...
llvm-svn: 93619
2010-01-16 01:45:47 +00:00
bf5cfa1a41
Retrying r91337:
...
The CIE says that the LSDA point in the FDE section is an "sdata4". That's fine,
but we need it to actually be 4-bytes in the FDE for some platforms. Allow
individual platforms to decide for themselves.
llvm-svn: 93616
2010-01-16 01:40:55 +00:00
94d91a5b30
eliminate uses of mangler and simplify code.
...
llvm-svn: 93615
2010-01-16 01:40:07 +00:00
a689edd067
fix inverted conditional
...
llvm-svn: 93614
2010-01-16 01:37:14 +00:00
a091179b5f
CurrentFnName is now dead, remove it.
...
llvm-svn: 93612
2010-01-16 01:24:10 +00:00
53c659f3ab
get pic16 off CurrentFnName
...
llvm-svn: 93610
2010-01-16 01:21:04 +00:00
fedff0f67d
remove the string form of printVisibility.
...
llvm-svn: 93609
2010-01-16 01:17:26 +00:00
426f31f458
switch more stuff onto MCSymbols
...
llvm-svn: 93608
2010-01-16 01:12:01 +00:00
efda1e4f0f
Temporarily revert r93581. It was causing failures in the ExecutionEngine tests
...
on the build bots.
llvm-svn: 93606
2010-01-16 01:06:58 +00:00
8a38fc33b0
eliminate uses of deprecated mangler apis
...
llvm-svn: 93605
2010-01-16 01:00:27 +00:00
08eff61eeb
this teestcase takes a long time to crash, remove it. If someone cares about this, they should file a bug, it's not doing any good as an xfail.
...
llvm-svn: 93604
2010-01-16 00:53:22 +00:00
e6b1bef33a
switch X86 target off CurFunctionName and MCIze more.
...
Note that the code wasn't calling DecorateCygMingName
when emitting the ".ascii -export" stuff at the end of
file for DLLExported functions. I don't know if it should
or not, but I'm preserving behavior.
llvm-svn: 93603
2010-01-16 00:51:39 +00:00
97598f0cba
Treat indirect branches specially only during pre-regalloc tail duplication,
...
not during the later post-alloc tail duplication.
llvm-svn: 93600
2010-01-16 00:42:25 +00:00
274c0c0db3
MCize tis, and make it keep CurrentFnSym up to date with CurrentFnName.
...
llvm-svn: 93598
2010-01-16 00:32:38 +00:00
298cdac99c
Run the pre-register allocation tail duplication pass by default. Remove
...
the -pre-regalloc-taildup command-line option, and add a new
-disable-early-taildup option.
llvm-svn: 93597
2010-01-16 00:29:50 +00:00
c6d3d82798
revert the x86 part of my last patch, cygwin is mutating CurrentFnName!
...
llvm-svn: 93595
2010-01-16 00:24:20 +00:00
719e908e7c
MCize a bunch more stuff, eliminating a lot of uses of the mangler
...
and CurrentFnName.
llvm-svn: 93594
2010-01-16 00:21:18 +00:00
6d8f59e65f
Fix llvm_supports_binding for lit, problem noticed by Bob!
...
llvm-svn: 93591
2010-01-16 00:00:20 +00:00
8b96af5665
remove two write-only sets.
...
llvm-svn: 93590
2010-01-15 23:56:03 +00:00
ae9b9eed18
supplement CurrentFnName with CurrentFnSym, which will eventually
...
replace it. Upgrade Alpha, Blackfin, and part of CellSPU to not
use mangler anymore. CellSPU needs more invasive surgery.
llvm-svn: 93589
2010-01-15 23:55:16 +00:00
fb47255591
Fix bug 5992: O'Caml's llvm_create_module was treating the context as a string.
...
Thanks Andy Ray for catching this!
llvm-svn: 93588
2010-01-15 23:49:16 +00:00
7fec180909
add a version of AsmPrinter::printVisibility that takes an MCSymbol.
...
llvm-svn: 93587
2010-01-15 23:38:51 +00:00
6394a6e285
use MCSymbol instead of getMangledName() in all cases except one.
...
llvm-svn: 93582
2010-01-15 23:31:55 +00:00
12821816c6
BumpPtrAllocator: Have the DefaultSlabAllocator created at runtime, not initialization time. This removes one of the 'init_constructors' reported in <rdar://problem/7545356>.
...
llvm-svn: 93581
2010-01-15 23:29:34 +00:00
cb7554a3ab
Adjust some comments per review.
...
llvm-svn: 93580
2010-01-15 23:29:29 +00:00
617603aaee
Remove unneeded argument per review.
...
llvm-svn: 93579
2010-01-15 23:28:49 +00:00
45400336ab
mc'ize a bunch of symbol stuff, eliminating std::strings.
...
llvm-svn: 93578
2010-01-15 23:26:49 +00:00
0dca0a9650
add another helper
...
llvm-svn: 93577
2010-01-15 23:25:11 +00:00
b0c0e6433f
Fix PR6019. A load has more than one use if it feeds a bitconvert that
...
has more than one use.
llvm-svn: 93576
2010-01-15 23:23:41 +00:00
91687f6e28
add a AsmPrinter::GetGlobalValueSymbol and GetExternalSymbolSymbol
...
helper method, use it to simplify some code.
llvm-svn: 93575
2010-01-15 23:18:17 +00:00
1ec62347e5
Update CMake build.
...
llvm-svn: 93571
2010-01-15 22:59:46 +00:00
bda8193caf
Update CMake build.
...
llvm-svn: 93570
2010-01-15 22:59:11 +00:00
fd850837a3
add testcase for r93564
...
llvm-svn: 93567
2010-01-15 22:27:37 +00:00
8ea3acbb3d
Add comments to the dump() and dumpr() routines.
...
llvm-svn: 93566
2010-01-15 22:22:58 +00:00
188fa96cf9
DEBUG_VALUE is now variable sized, as it has a
...
target-dependent memory address representation in it.
Restore X86 printing of DEBUG_VALUE; lowering is
done in X86RegisterInfo using the normal algorithm.
llvm-svn: 93565
2010-01-15 22:22:35 +00:00
d1a8a7819c
Update Thumb1 storeRegToStackSlot() and loadRegFromStackSlot() to properly
...
handle physical registers R0-R7 when described as having a non-tGPR register
class.
llvm-svn: 93564
2010-01-15 22:21:03 +00:00
d2968c4c12
Fix a typo that Anton noticed.
...
llvm-svn: 93563
2010-01-15 22:18:15 +00:00
0633820599
Add FIXME.
...
llvm-svn: 93562
2010-01-15 22:08:16 +00:00
e0da4b6cff
Fix a comment typo.
...
llvm-svn: 93560
2010-01-15 21:55:02 +00:00
c2f8f16162
move "Metadata Nodes and Metadata Strings" section to the right place in the
...
document and edit it.
llvm-svn: 93559
2010-01-15 21:50:19 +00:00
8444d7536c
Remove the InlineHint attribute. There are no current or planned
...
users.
llvm-svn: 93558
2010-01-15 21:36:30 +00:00
a6450df92a
zext / truncate is free on msp430. Inform codegen about this.
...
llvm-svn: 93556
2010-01-15 21:19:43 +00:00
07e8171fcb
Reenable tests
...
llvm-svn: 93555
2010-01-15 21:19:26 +00:00
ce52fd5f93
Add branch relaxation pass (shamelessly stolen from PPC).
...
llvm-svn: 93554
2010-01-15 21:19:05 +00:00
71471293a5
Provide instruction sizes & encoding. No opcodes yet (but not needed so far).
...
llvm-svn: 93553
2010-01-15 21:18:39 +00:00
93a7d026a8
Enable bit tests and setcc stuff.
...
llvm-svn: 93552
2010-01-15 21:18:18 +00:00
6826ce7e96
Add micro-optimization which allows us to fold imm into cmp. This allows us to save 1 word (sometimes) and reduce register pressure.
...
llvm-svn: 93551
2010-01-15 21:18:02 +00:00
e57b234b88
Add instruction formats & support stuff
...
llvm-svn: 93550
2010-01-15 21:17:13 +00:00
834d70d3df
Don't make changes to the MBB in MachineBasicBlock::canFallThrough().
...
This fixes the regression for -pre-regalloc-taildup in
MultiSource/Applications/lambda-0.1.3.
llvm-svn: 93541
2010-01-15 20:00:12 +00:00
73ef9556dd
Simplify logic. Any functional change is unintended.
...
llvm-svn: 93540
2010-01-15 19:59:57 +00:00
18bcf30497
unbreak the build, grr symlinks.
...
llvm-svn: 93539
2010-01-15 19:51:05 +00:00
554039a914
Add some debug routines to SelectionDAG to dump full DAGs.
...
print/dumpWithDepth allows one to dump a DAG up to N levels deep.
dump/printWithFullDepth prints the whole DAG, subject to a depth limit
on 100 in the default case (to prevent infinite recursion).
Have CannotYetSelect to a dumpWithFullDepth so it is clearer exactly
what the non-matching DAG looks like.
llvm-svn: 93538
2010-01-15 19:43:23 +00:00
e17df0b7f0
fix a bug in range information for $42, eliminate an
...
unneeded argument from ParseExpression.
llvm-svn: 93536
2010-01-15 19:39:23 +00:00
015cfb1577
add range information for mem X86Operand's, now all
...
X86Operand's have range info.
llvm-svn: 93535
2010-01-15 19:33:43 +00:00
528d00b913
extend MCAsmParser::ParseExpression and ParseParenExpression
...
to return range information for subexpressions. Use this to
provide range info for several new X86Operands.
llvm-svn: 93534
2010-01-15 19:28:38 +00:00
86e6153382
give X86Operand a ctor and start passing SMLoc's into it.
...
llvm-svn: 93532
2010-01-15 19:06:59 +00:00
b324e66f4c
Improve llvm.dbg.declare intrinsic by referring directly to the storage in its first argument, via function-local metadata (instead of via a bitcast).
...
This patch also cleans up code that expects there to be a bitcast in the first argument and testcases that call llvm.dbg.declare.
It also strips old llvm.dbg.declare intrinsics that did not pass metadata as the first argument.
llvm-svn: 93531
2010-01-15 19:04:09 +00:00
fb85dddba0
Revert 93499. After discussion with Chris we agreed
...
FrameIndexes should be lowered, but the same way as
everything else (target dependent) rather than in a
special hacked way. The lowering needs to be done
for eventual purposes of Dwarf generation.
llvm-svn: 93530
2010-01-15 18:58:14 +00:00
0c2538fee2
add range location info for registers, change
...
X86Operand::Create* implementations to avoid
copy ctor use.
llvm-svn: 93528
2010-01-15 18:51:29 +00:00
d232150b83
Hook up llc's -filetype=obj to use MCStreamer if an MCCodeEmitter is available.
...
Remove most of old Mach-O Writer support, it has been replaced by MCMachOStreamer
Further refactoring to completely remove MachOWriter and drive the object file
writer with the AsmPrinter MCInst/MCSection logic is forthcoming.
llvm-svn: 93527
2010-01-15 18:51:18 +00:00
a2bbb7cbc6
clean up the memory management of the operands.
...
llvm-svn: 93526
2010-01-15 18:44:13 +00:00
cc2ad08a11
refactor ParseRegister to avoid using X86Operand as a temporary
...
datastructure when parsing a mem operand.
llvm-svn: 93521
2010-01-15 18:27:19 +00:00
97257f8e40
mention that unwind isn't to be trusted, patch by Dustin Laurence
...
llvm-svn: 93518
2010-01-15 18:08:37 +00:00
8d4904b639
Revert r93504 because older uses of llvm.dbg.declare intrinsics need to be auto-upgraded
...
llvm-svn: 93515
2010-01-15 17:36:47 +00:00
306f155a84
Test case for http://llvm.org/PR6028 .
...
llvm-svn: 93511
2010-01-15 11:29:26 +00:00
bcbdbfb345
Fix http://llvm.org/PR6028 , an assertion failure when an UndefValue of
...
integer type is used.
llvm-svn: 93509
2010-01-15 08:32:58 +00:00
1a234c0aee
Change pre-regalloc tail duplication to only duplicate indirect branch blocks.
...
The pre-regalloc pass caused some regressions in both compile time and
performance of the generated code, and it did not improve performance, except
for indirect branches. I also moved the check for single-block loops to speed
up the common case when running the taildup pass before reg allocation.
llvm-svn: 93505
2010-01-15 06:29:17 +00:00
5d6551816b
Improve llvm.dbg.declare intrinsic by referring directly to the storage in its first argument, via function-local metadata (instead of via a bitcast).
...
This patch also cleans up code that expects there to be a bitcast in the first argument and testcases that call llvm.dbg.declare.
llvm-svn: 93504
2010-01-15 03:37:48 +00:00
3a0b066d24
Temporary disable tests
...
llvm-svn: 93501
2010-01-15 02:09:27 +00:00
0e7e55da1d
Lower FrameIndex operand of DEBUG_VALUE (specially) and
...
print it as a comment on X86.
llvm-svn: 93499
2010-01-15 01:54:55 +00:00
881ba0bb92
Remove DEBUG_DECLARE, looks like we don't need it.
...
Also, DEBUG_VALUE has side effects.
llvm-svn: 93498
2010-01-15 01:50:44 +00:00
cefa7addc8
Fix cmp emission on msp430: we definitely should turn stuff like
...
"icmp lhs, rhs" into "cmp rhs, lhs". This should fix PR5979.
llvm-svn: 93496
2010-01-15 01:29:49 +00:00
89880c8224
Do not use AT_specification die for static variables. It confuses gdb.
...
llvm-svn: 93494
2010-01-15 01:12:22 +00:00
1dae4e6c2a
Make sure include/llvm/MC/MCParsedAsmOperand.h can be compiled alone.
...
llvm-svn: 93492
2010-01-15 00:41:53 +00:00
4f1b0ded75
fix 80-column violations
...
llvm-svn: 93487
2010-01-15 00:36:15 +00:00
01e2bfd79b
new test case for r93485.
...
llvm-svn: 93486
2010-01-15 00:34:26 +00:00
2e3abd7e82
Fix 80 column violations and clean up whitespace
...
llvm-svn: 93484
2010-01-15 00:32:47 +00:00
2108ee075f
Do not emit multiple AT_container_type attributes.
...
We need to find a better way to emit this info.
llvm-svn: 93481
2010-01-15 00:26:31 +00:00
029fbd984b
Name change for consistency. No functional change.
...
llvm-svn: 93480
2010-01-15 00:22:18 +00:00
d0860d6e02
EmitAtomicCmpSwap() custome inserter needs to delete the MI passed in. EmitAtomicBinary() already does this.
...
llvm-svn: 93479
2010-01-15 00:18:34 +00:00
3aa70b2c4f
Teach PPC how to replaceMachineCodeForFunction correctly. (Fixes
...
JITTest.FunctionIsRecompiledAndRelinked.)
llvm-svn: 93475
2010-01-14 23:15:26 +00:00
f567e1b426
Pad my commit stats by reducing indentation in this now separate
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commit.
llvm-svn: 93473
2010-01-14 23:00:10 +00:00
0f45f4f849
Added 16-bit Thumb Load/Store immediate instructions with encoding bits so that
...
the disassembler can properly decode Load/Store register/immediate instructions.
llvm-svn: 93471
2010-01-14 22:42:17 +00:00
14bf521792
add virtual methods to get the start/end of a MCParsedAsmOperand,
...
the default implementation returns "unknown".
llvm-svn: 93470
2010-01-14 22:29:57 +00:00
f29c0b6880
Split the TargetAsmParser "ParseInstruction" interface in half:
...
the new ParseInstruction method just parses and returns a list of
target operands. A new MatchInstruction interface is used to
turn the operand list into an MCInst.
This requires new/deleting all the operands, but it also gives
targets the ability to use polymorphic operands if they want to.
llvm-svn: 93469
2010-01-14 22:21:20 +00:00
fdf7031a1a
Add variable-width shifts for MSP430
...
llvm-svn: 93468
2010-01-14 22:09:38 +00:00
abf4ef0ee1
Remove pseudo-MI in custom inserter.
...
llvm-svn: 93467
2010-01-14 22:09:11 +00:00
b297cdd937
Fix a comment.
...
llvm-svn: 93463
2010-01-14 21:50:17 +00:00
35dd9e8e1d
Few minor changes that were requested. No functional change.
...
llvm-svn: 93462
2010-01-14 21:48:00 +00:00
9ae81816bc
Add comment explaining the necessity of r93456
...
llvm-svn: 93459
2010-01-14 21:38:31 +00:00
77fd677111
prune #includes in TargetAsmParser.h
...
Pass in SMLoc of instr opcode into ParseInstruction.
Make AsmToken be a class, not a struct.
llvm-svn: 93457
2010-01-14 21:32:45 +00:00
0868567fc3
Dwarf EH prepare needs to be run after SjLj prepare. Otherwise,
...
catch info can get misplaced when a selector ends up more than one block
removed from the parent invoke(s). This could happen when a landing pad is
shared by multiple invokes and is also a target of a normal edge from
elsewhere.
llvm-svn: 93456
2010-01-14 21:22:16 +00:00
ecc8eece7d
introduce MCParsedAsmOperand
...
llvm-svn: 93455
2010-01-14 21:21:40 +00:00
872501b6e0
introduce the MCParsedAsmOperand class.
...
llvm-svn: 93454
2010-01-14 21:20:55 +00:00
8e670ee381
Small tweak to inline cost computation. Ext of i/fcmp results are mostly optimized away in codegen.
...
llvm-svn: 93453
2010-01-14 21:04:31 +00:00
105682dc96
Remove spurious semicolon.
...
Patch by Diego Iastrubni!
llvm-svn: 93450
2010-01-14 20:19:51 +00:00
8296da7b56
In debug builds, assert that function-local metadata has only 1 parent function
...
llvm-svn: 93449
2010-01-14 20:12:34 +00:00
f3ac066418
Reduce the inlining cost of functions that contain calls to easily,
...
and frequently optimized functions.
llvm-svn: 93448
2010-01-14 20:12:34 +00:00
572218b53b
Simplify code that chooses when to enumerate function-local metadata operands
...
llvm-svn: 93446
2010-01-14 19:54:11 +00:00
36aee30dfb
Avoid modifying ValueEnumerator's MD ValueList by choosing which function-local MD to write based on the function currently being written
...
llvm-svn: 93441
2010-01-14 19:38:44 +00:00
0ca14e4498
ARM "l" constraint for inline asm means R0-R7, also for Thumb2.
...
This is consistent with llvm-gcc's arm/constraints.md.
Certain instructions (e.g. CBZ, CBNZ) require a low register, even in Thumb2
mode.
llvm-svn: 93436
2010-01-14 18:19:56 +00:00
22fe58e1b9
Use ENABLE_ASSERTIONS throughout.
...
llvm-svn: 93423
2010-01-14 10:19:55 +00:00
dd5286dc63
Fix a codegen abort seen in 483.xalancbmk.
...
llvm-svn: 93417
2010-01-14 03:08:49 +00:00
37463a7a58
Test for r93409.
...
llvm-svn: 93410
2010-01-14 02:24:50 +00:00
d2b4f36986
Extend testcase to also test llvm.dbg.value intrinsic
...
llvm-svn: 93408
2010-01-14 02:12:41 +00:00
b658d30b91
Now that LLParser, AsmWriter, BitcodeReader, and BitcodeWriter all correctly support function-local metadata, test it.
...
llvm-svn: 93406
2010-01-14 01:51:28 +00:00
6c730dea6f
In WriteFunction(), write function-local metadata before we write the instructions, so instruction's references to metadata are fully resolved by the time they get written.
...
llvm-svn: 93403
2010-01-14 01:50:08 +00:00
61e6e829c6
Fix printing of function-local metadata in AsmWriter
...
llvm-svn: 93402
2010-01-14 01:47:37 +00:00
b816154268
Clean up unnecessary return and brackets
...
llvm-svn: 93401
2010-01-14 01:46:02 +00:00
8c85e25589
Add MDNode::getFunction(), which figures out the metadata's function, if it has function that it is local to.
...
llvm-svn: 93400
2010-01-14 01:45:14 +00:00
bff090648b
Don't fold insufficiently aligned ldr/str into ldm/stm instructions.
...
An unaligned ldr causes a trap, and is then emulated by the kernel with
awesome performance. The darwin kernel does not emulate unaligned ldm/stm
Thumb2 instructions, so don't generate them.
This fixes the miscompilation of Multisource/Applications/JM/lencod for Thumb2.
Generating unaligned ldr/str pairs from a 16-bit aligned memcpy is probably
also a bad idea, but that is beyond the scope of this patch.
llvm-svn: 93393
2010-01-14 00:54:10 +00:00
e355daf7b0
Erm, previous patch was wrong; Thanks Bill\!
...
llvm-svn: 93381
2010-01-14 00:34:53 +00:00
b65256c414
Enable assertions by default for Apple-style builds.
...
llvm-svn: 93380
2010-01-14 00:22:05 +00:00
3eb76c23dd
this is an SSE-specific issue.
...
llvm-svn: 93373
2010-01-13 23:29:11 +00:00
fb534d97b5
X86 if conversion + tail merging issues from PR6032.
...
llvm-svn: 93372
2010-01-13 23:28:40 +00:00
ad7a5b07a7
When the visitSub method was split into visitSub and visitFSub, this xform was
...
added to the FSub version. However, the original version of this xform guarded
against doing this for floating point (!Op0->getType()->isFPOrFPVector()).
This is causing LLVM to perform incorrect xforms for code like:
void func(double *rhi, double *rlo, double xh, double xl, double yh, double yl){
double mh, ml;
double c = 134217729.0;
double up, u1, u2, vp, v1, v2;
up = xh*c;
u1 = (xh - up) + up;
u2 = xh - u1;
vp = yh*c;
v1 = (yh - vp) + vp;
v2 = yh - v1;
mh = xh*yh;
ml = (((u1*v1 - mh) + (u1*v2)) + (u2*v1)) + (u2*v2);
ml += xh*yl + xl*yh;
*rhi = mh + ml;
*rlo = (mh - (*rhi)) + ml;
}
The last line was optimized away, but rl is intended to be the difference
between the infinitely precise result of mh + ml and after it has been rounded
to double precision.
llvm-svn: 93369
2010-01-13 23:23:17 +00:00
e77d17b73a
Add getSource() to SuccIterator
...
Get the source BB of an iterator.
llvm-svn: 93364
2010-01-13 22:21:43 +00:00
ad3f4bd6f9
Extend SuccIterator
...
Implement most of the missing methods to make SuccIterator random access.
operator[] is still missing.
llvm-svn: 93363
2010-01-13 22:21:28 +00:00
fb40a8e5f1
this test requires SSE, thanks to jyasskin for pointing this out.
...
llvm-svn: 93360
2010-01-13 21:51:41 +00:00
4cfd5835c9
makeNameProper is now private!
...
llvm-svn: 93357
2010-01-13 21:31:39 +00:00
ccbeed2af4
fix ELF section mangling stuff for weak symbols to not use
...
obsolete Mangler interfaces.
llvm-svn: 93356
2010-01-13 21:29:21 +00:00
9c203e362a
Fix comment typo
...
llvm-svn: 93355
2010-01-13 21:25:04 +00:00
b9d1f5a006
tidy
...
llvm-svn: 93352
2010-01-13 21:21:29 +00:00
51d6cc4bdb
reduce duplicate mangling logic by using MCSymbol::printMangledName.
...
llvm-svn: 93351
2010-01-13 21:12:34 +00:00
8361006264
expose a static function as a static method on the MCSymbol class.
...
llvm-svn: 93350
2010-01-13 21:09:59 +00:00
b34888b6d0
Fixed a couple of places for Thumb MOV where encoding bits are underspecified.
...
llvm-svn: 93349
2010-01-13 21:00:26 +00:00
fcf91ee403
Fix pasto
...
llvm-svn: 93342
2010-01-13 19:54:39 +00:00
c5b7dcf552
stop the CBE from using deprecated Mangler stuff.
...
llvm-svn: 93341
2010-01-13 19:54:07 +00:00
b00a6beef6
Write function-local metadata as a metadata subblock of a funciton block
...
llvm-svn: 93339
2010-01-13 19:37:33 +00:00
cad7328d8c
Enumerate function-local metadata (and its types and operands) only during function-incorporation, global metadata continues to be enumerated during creation of ValueEnumerator
...
llvm-svn: 93338
2010-01-13 19:36:16 +00:00
108d3acb43
Parse function-local metadata inside function blocks
...
llvm-svn: 93337
2010-01-13 19:34:08 +00:00
643b817d92
Use the GV version of getNameWithPrefix in TargetLoweringObjectFileCOFF::
...
SelectSectionForGlobal, unbreaking weak globals with no-name.
llvm-svn: 93336
2010-01-13 19:19:17 +00:00
af0ad65ff2
Commit some changes I had managed to lose last night while refactoring the code. Avoid change use of PHI instructions because it's not legal to insert any instructions before them.
...
This fixes PR6027.
llvm-svn: 93335
2010-01-13 19:16:39 +00:00
a9365352cf
just finish MCizing FnStubInfo which cleans it up and simplifies it.
...
llvm-svn: 93334
2010-01-13 19:13:16 +00:00
45faea454d
don't call getNameWithPrefix repeatedly and unnecesarily.
...
llvm-svn: 93333
2010-01-13 19:05:36 +00:00
9148f36e90
properly use MCSymbol to print the strings aquired from getNameWithPrefix.
...
llvm-svn: 93332
2010-01-13 19:00:57 +00:00
2e06b93f43
Introduce Twine::toStringRef, a variant of toVector which avoids the copy if the
...
twine can be represented as a single StringRef. Use the new methode to simplify
some twine users.
llvm-svn: 93317
2010-01-13 12:45:23 +00:00
b5499d09d1
Re-enable extension optimization pass.
...
llvm-svn: 93313
2010-01-13 08:45:40 +00:00
ede8ad45bc
upgrade and MC'ize a few uses of makeNameProper.
...
llvm-svn: 93310
2010-01-13 08:08:33 +00:00
4cd281dab1
MC'ize this a bit and upgrade APIs
...
llvm-svn: 93309
2010-01-13 08:04:24 +00:00
b0dc959e1d
add a fixme, ELF MCSection isn't quite right and weak unnamed globals are broken
...
on linux (even though they are pointless, they shouldn't ICE).
llvm-svn: 93308
2010-01-13 08:02:14 +00:00
ceb5a4e8f6
For now, avoid issuing extract_subreg to reuse lower 8-bit, it's not safe in 32-bit.
...
llvm-svn: 93307
2010-01-13 08:01:32 +00:00
957b8beaaa
Add comment; refactor; avoid pulling in DT if it's not used.
...
llvm-svn: 93306
2010-01-13 07:59:13 +00:00
f0a401fcf0
eliminate some uses of Mangler::makeNameProper.
...
llvm-svn: 93305
2010-01-13 07:56:59 +00:00
98b05e017b
don't add the \1 to the name.
...
llvm-svn: 93304
2010-01-13 07:50:21 +00:00
25d8ed3773
remove uses of deprecated functions, this generates slightly
...
different BlockAddress labels, but nothing semantically important.
Add a FIXME that BlockAddress codegen is broken if the LLVM BB has
an empty name (e.g. strip was run).
llvm-svn: 93303
2010-01-13 07:30:49 +00:00
2b630fe822
use the new form of getNameWithPrefix, not makeNameProper.
...
Among other things, this would do very weird things if the
basic block name had (e.g.) a space in it on darwin:
makeNameProper would add quotes, then the mcsymbol would
escape the quotes.
llvm-svn: 93302
2010-01-13 07:16:53 +00:00
1126534dce
add new isSingleStringRef()/getSingleStringRef() methods to twine,
...
and use them to avoid a copy of a string in getNameWithPrefix in
the common case. It seems like Value::setName and other places
should use this as well?
llvm-svn: 93301
2010-01-13 07:12:06 +00:00
33535b3250
ugh, my last patch just sped up a method and changed all the clients
...
that I want to completely eliminate. Add fixme's so I remember this
in the future, and add the missing helper that they should be upgraded
to use instead.
llvm-svn: 93300
2010-01-13 07:01:09 +00:00
209aecad0c
change Mangler::makeNameProper to return its result in a SmallVector
...
instead of returning it in an std::string. Based on this change:
1. Change TargetLoweringObjectFileCOFF::getCOFFSection to take a StringRef
2. Change a bunch of targets to call makeNameProper with a smallstring,
making several of them *much* more efficient.
3. Rewrite Mangler::makeNameProper to not build names and then prepend
prefixes, not use temporary std::strings, and to avoid other crimes.
llvm-svn: 93298
2010-01-13 06:38:18 +00:00
b252cbb04c
my mistake, Mangler::makeNameProper wants to take a twine, not a stringref!
...
llvm-svn: 93296
2010-01-13 05:02:57 +00:00
04a7ce850d
change makeNameProper to take a stringref instead of std::string.
...
llvm-svn: 93295
2010-01-13 04:55:33 +00:00
e192d377c5
give StringRef a const_iterator member.
...
llvm-svn: 93294
2010-01-13 04:50:20 +00:00
8e26d19cb3
fix assert in AsmPrinter::EmitGlobalConstantLargeInt to match reality.
...
llvm-svn: 93293
2010-01-13 04:39:46 +00:00
4581a4f03a
reduce nesting and code duplication in AsmPrinter::EmitGlobalConstantLargeInt.
...
llvm-svn: 93292
2010-01-13 04:38:16 +00:00
a32ba6d056
reduce indentation and add a fast-path to EmitGlobalConstant for 8-byte
...
integers on 64-bit systems.
llvm-svn: 93291
2010-01-13 04:34:19 +00:00
7e0c164b5e
reduce indentation and use early exits in AsmPrinter::EmitConstantValueOnly
...
llvm-svn: 93290
2010-01-13 04:29:19 +00:00
013a91ddfe
Revert 93270 pending investigation of how stray non-constant values end up in ValueEnumerator's ValueList during WriteConstants()
...
llvm-svn: 93289
2010-01-13 03:18:30 +00:00
d7d8f6d000
Disable opt-ext pass to unbreak the build for now.
...
llvm-svn: 93286
2010-01-13 01:51:43 +00:00
7a4bac3000
Remove debug option I accidentally left in.
...
llvm-svn: 93285
2010-01-13 01:43:20 +00:00
93e42c5435
Fix a comment.
...
llvm-svn: 93284
2010-01-13 01:39:38 +00:00
451a965a78
Update CMake file.
...
llvm-svn: 93283
2010-01-13 01:02:47 +00:00
a94837dc24
Remove the JustSP single-register regclass.
...
It was only being used by instructions with the t_addrmode_sp addressing mode,
and that is pattern matched in a way that guarantees SP is used. There is
never any register allocation done from this class.
llvm-svn: 93280
2010-01-13 00:43:06 +00:00
0ad23efb0f
Try to fix the ARM and PPC buildbots. The -mattr=vector-unaligned-mem
...
flag doesn't exist there, and this is an x86 test.
llvm-svn: 93279
2010-01-13 00:31:43 +00:00
30bebff456
Add a quick pass to optimize sign / zero extension instructions. For targets where the pre-extension values are available in the subreg of the result of the extension, replace the uses of the pre-extension value with the result + extract_subreg.
...
For now, this pass is fairly conservative. It only perform the replacement when both the pre- and post- extension values are used in the block. It will miss cases where the post-extension values are live, but not used.
llvm-svn: 93278
2010-01-13 00:30:23 +00:00
7b1a7ed330
Further progration of metadata operands. The
...
dumper doesn't really do what I want yet, but
at least it doesn't crash now.
llvm-svn: 93272
2010-01-13 00:00:24 +00:00
fc4aefb129
Make WriteConstants() more robust against stray values in ValueEnumerator's ValueList
...
llvm-svn: 93270
2010-01-12 23:37:59 +00:00
5b562906ac
Fix a comment typo.
...
llvm-svn: 93261
2010-01-12 22:18:56 +00:00
3b96c8ae1d
use consistent tag kinds for ilist_traits
...
llvm-svn: 93259
2010-01-12 22:00:04 +00:00
573da8ac90
1) Use the new SimplifyInstructionsInBlock routine instead of the copy
...
in JT.
2) When cloning blocks for PHI or xor conditions, use
instsimplify to simplify the code as we go. This allows us to
squish common cases early in JT which opens up opportunities for
subsequent iterations, and allows it to completely simplify the
testcase.
llvm-svn: 93253
2010-01-12 20:41:47 +00:00
7c743f2c74
add a helper function.
...
llvm-svn: 93251
2010-01-12 19:40:54 +00:00
f76941ed83
Use Twine, instead of StringRef, for consistency.
...
llvm-svn: 93249
2010-01-12 18:57:56 +00:00
943ddf666d
Use ilist_tratis to autoinsert and remove NamedMDNode from MDSymbolTable.
...
llvm-svn: 93247
2010-01-12 18:34:06 +00:00
08557ef5f4
Eliminate or_not_add and just use AddedComplexity so isel tries or_is_add patterns first.
...
llvm-svn: 93245
2010-01-12 18:31:19 +00:00
0e9189371f
Add nounwind.
...
llvm-svn: 93244
2010-01-12 18:29:23 +00:00
b7168c270e
Revert commit 93204, since it causes the assembler to barf
...
on x86-64 linux with messages like this:
Error: Incorrect register `%r14' used with `l' suffix
llvm-svn: 93242
2010-01-12 17:46:16 +00:00
0067d6bbbe
Fix typo.
...
llvm-svn: 93235
2010-01-12 08:30:46 +00:00
fd75e12954
Tweak commit 91745, which changed target data for both Mingw and Cygwin,
...
to not touch Cygwin: the change caused llvm-gcc build failures due to
long double getting the wrong size. Patch by Aaron Gray.
llvm-svn: 93234
2010-01-12 08:21:07 +00:00
9059833de6
Make several tests less fragile.
...
llvm-svn: 93230
2010-01-12 04:52:47 +00:00
c119580307
Reapply the MOV64r0 patch, with a fix: MOV64r0 clobbers EFLAGS.
...
llvm-svn: 93229
2010-01-12 04:42:54 +00:00
d49763d200
Update a partially obsolete comment.
...
llvm-svn: 93228
2010-01-12 04:32:35 +00:00
f9d6d53823
Fix a typo in a comment.
...
llvm-svn: 93227
2010-01-12 04:30:26 +00:00
af7855d571
tidy up
...
llvm-svn: 93222
2010-01-12 02:07:50 +00:00
eb73bdb2e1
Teach jump threading to duplicate small blocks when the branch
...
condition is a xor with a phi node. This eliminates nonsense
like this from 176.gcc in several places:
LBB166_84:
testl %eax, %eax
- setne %al
- xorb %cl, %al
- notb %al
- testb $1, %al
- je LBB166_85
+ je LBB166_69
+ jmp LBB166_85
This is rdar://7391699
llvm-svn: 93221
2010-01-12 02:07:17 +00:00
585f82b6f6
Add MO_Metadata as an operand kind. Not used yet.
...
llvm-svn: 93220
2010-01-12 02:01:53 +00:00
4216615f99
Add TargetInstrInfo::isCoalescableInstr. It returns true if the specified
...
instruction is copy like where the source and destination registers can
overlap. This is to be used by the coalescable to coalesce the source and
destination registers of instructions like X86::MOVSX64rr32. Apparently
some crazy people believe the coalescer is too simple.
llvm-svn: 93210
2010-01-12 00:09:37 +00:00
6a19ed0b86
some cleanup, and make it obvious that ProcessJumpOnPHI only works
...
on branches by renaming it and checking for a branch at the call site.
llvm-svn: 93208
2010-01-11 23:41:09 +00:00
2d2c0a00ad
disable this testcase, PR5997
...
llvm-svn: 93206
2010-01-11 23:18:33 +00:00
42b07e9600
Add manual ISD::OR fastisel selection routines. TableGen is no longer autogen them after 93152 and 93191.
...
llvm-svn: 93204
2010-01-11 22:59:27 +00:00
0b62cc6dc4
Add documentation for llvm.dbg.value intrinsic
...
llvm-svn: 93203
2010-01-11 22:53:48 +00:00
d1a3efedd8
reenable the piece that turns trunc(zext(x)) -> x even if zext has multiple uses,
...
codegen has no apparent problem with the trunc version of this, because it turns
into a simple subreg idiom
llvm-svn: 93202
2010-01-11 22:49:40 +00:00
a6b1356cf9
Disable folding sext(trunc(x)) -> x (and other similar cast/cast cases) when the
...
trunc has multiple uses. Codegen is not able to coalesce the subreg case
correctly and so this leads to higher register pressure and spilling (see PR5997).
This speeds up 256.bzip2 from 8.60 -> 8.04s on my machine, ~7%.
llvm-svn: 93200
2010-01-11 22:45:25 +00:00
9d75c966e0
Consolidate ConvertGlobalValIDToValue, ConvertGlobalOrMetadataValIDToValue, and ConvertValIDToValue into a more powerful ConvertValIDToValue() that does all three's work
...
llvm-svn: 93197
2010-01-11 22:31:58 +00:00
b53e826103
Remove trailing white spaces in post dominators header file
...
llvm-svn: 93195
2010-01-11 22:22:46 +00:00
829e8a75a1
Add getNode() to post dominators.
...
Implement the same interface as already available for dominators.
llvm-svn: 93194
2010-01-11 22:22:32 +00:00
99789a7a76
Extend r93152 to work on OR r, r. If the source set bits are known not to overlap, then select as an ADD instead.
...
llvm-svn: 93191
2010-01-11 22:03:29 +00:00
f0d26d4b74
reduce this to a sensible testcase.
...
llvm-svn: 93189
2010-01-11 21:58:19 +00:00
eb103c404b
Shorten up this testcase.
...
llvm-svn: 93187
2010-01-11 21:50:35 +00:00
7bdf339602
Revert 93158. It's breaking quite a few x86_64 tests.
...
llvm-svn: 93185
2010-01-11 21:13:41 +00:00
d2a1bee2d4
Avoid adding PHI arguments for a predecessor that has gone away when a BRCOND was constant folded.
...
This fixes PR5980.
llvm-svn: 93184
2010-01-11 21:02:33 +00:00
93ad708a46
Remove unused string functions.
...
llvm-svn: 93183
2010-01-11 20:33:12 +00:00
c5f8184eec
Do not turn 8-bit OR to ADD since ADD8ri is not 3-addressfiable.
...
llvm-svn: 93182
2010-01-11 20:18:04 +00:00
ec57c81e64
Disable transformation of select of two loads to a select of address and then a load if the
...
loads are not in the default address space because the transformation discards src value info.
llvm-svn: 93180
2010-01-11 20:12:49 +00:00
6bf8240762
Add StrInStrNoCase, a StringRef version of CStrInCStrNoCase.
...
llvm-svn: 93174
2010-01-11 19:45:18 +00:00
d1a8969dd2
Add top level section for named metadata.
...
llvm-svn: 93172
2010-01-11 19:35:55 +00:00
f991bbb0c1
Improve unclear bits and inaccuracies in structure and insertvalue
...
documentation.
Patch by Dustin Laurence!
llvm-svn: 93170
2010-01-11 19:19:26 +00:00
81e7fb15e9
Update the -tailcallopt description to match djg's improvements to the calling
...
convention.
llvm-svn: 93167
2010-01-11 18:53:47 +00:00
8992323bb9
s/NextValueNo/NextMDValueNo while processing metadata.
...
llvm-svn: 93165
2010-01-11 18:52:33 +00:00
0ef736fef2
Turns out llvm-gcc still uses SplitString with a vector. Add it back until I
...
have a fix.
llvm-svn: 93163
2010-01-11 18:44:35 +00:00
c6fe3c3273
Reimplement getToken and SplitString as "StringRef helper functions"
...
- getToken is modeled after StringRef::split but it can split on multiple
separator chars and skips leading seperators.
- SplitString is a StringRef::split variant for more than 2 elements with the
same behaviour as getToken.
llvm-svn: 93161
2010-01-11 18:03:24 +00:00
e99a3c191e
Use a 32-bit and with implicit zero-extension instead of a 64-bit and if it
...
has an immediate with at least 32 bits of leading zeros, to avoid needing to
materialize that immediate in a register first.
FileCheckize, tidy, and extend a testcase to cover this case.
This fixes rdar://7527390.
llvm-svn: 93160
2010-01-11 17:58:34 +00:00
3a55686345
Re-instate MOV64r0 and MOV16r0, with adjustments to work with the
...
new AsmPrinter. This is perhaps less elegant than describing them
in terms of MOV32r0 and subreg operations, but it allows the
current register to rematerialize them.
llvm-svn: 93158
2010-01-11 17:37:57 +00:00
31e8637ac2
Generalize this check to avoid depending on a specific register assignment.
...
llvm-svn: 93157
2010-01-11 17:24:27 +00:00
355ebc7f58
Make this test less trivial, to avoid spurious failures.
...
llvm-svn: 93156
2010-01-11 17:23:56 +00:00
f6e8369a5b
Pattern top-level operators don't need to be restricted to a
...
single user. The _su forms are intended for non-top-level nodes.
llvm-svn: 93155
2010-01-11 17:21:05 +00:00
40ea3e5ce2
Reword this comment to reference a more fundamental issue.
...
llvm-svn: 93154
2010-01-11 17:14:46 +00:00
64d9f40557
Select an OR with immediate as an ADD if the input bits are known zero. This allow the instruction to be 3address-fied if needed.
...
llvm-svn: 93152
2010-01-11 17:03:47 +00:00
206351a1ff
Implement a feature (-vector-unaligned-mem) to allow targets to
...
ignore alignment requirements for SIMD memory operands. This
is useful on architectures like the AMD 10h that do not trap on
unaligned references if a status bit is twiddled at startup time.
llvm-svn: 93151
2010-01-11 16:29:42 +00:00
9ce5b5134d
Respond to Chris' review:
...
Make InsertDbgValueIntrinsic() and get Offset take and recieve a uint64_t.
Get constness correct for getVariable() and getValue().
llvm-svn: 93149
2010-01-11 07:45:19 +00:00
9518869423
add one more bitfield optimization, allowing clang to generate
...
good code on PR4216:
_test_bitfield: ## @test_bitfield
orl $32962, %edi
movl $4294941946, %eax
andq %rdi, %rax
ret
instead of:
_test_bitfield:
movl $4294941696, %ecx
movl %edi, %eax
orl $194, %edi
orl $32768, %eax
andq $250, %rdi
andq %rax, %rcx
movq %rdi, %rax
orq %rcx, %rax
ret
Evan is looking into the remaining andq+imm -> andl optimization.
llvm-svn: 93147
2010-01-11 06:55:24 +00:00
0a85420409
Extend CanEvaluateZExtd to handle and/or/xor more aggressively in the
...
BitsToClear case. This allows it to promote expressions which have an
and/or/xor after the lshr, promoting cases like test2 (from PR4216)
and test3 (random extample extracted from a spec benchmark).
clang now compiles the code in PR4216 into:
_test_bitfield: ## @test_bitfield
movl %edi, %eax
orl $194, %eax
movl $4294902010, %ecx
andq %rax, %rcx
orl $32768, %edi
andq $39936, %rdi
movq %rdi, %rax
orq %rcx, %rax
ret
instead of:
_test_bitfield: ## @test_bitfield
movl %edi, %eax
orl $194, %eax
movl $4294902010, %ecx
andq %rax, %rcx
shrl $8, %edi
orl $128, %edi
shlq $8, %rdi
andq $39936, %rdi
movq %rdi, %rax
orq %rcx, %rax
ret
which is still not great, but is progress.
llvm-svn: 93145
2010-01-11 04:05:13 +00:00
12bd8992b3
Remove the dead TD argument to CanEvaluateZExtd, and add a
...
new BitsToClear result which allows us to start promoting
expressions that end with a lshr-by-constant. This is
conservatively correct and better than what we had before
(see testcases) but still needs to be extended further.
llvm-svn: 93144
2010-01-11 03:32:00 +00:00
172630abd2
improve comments, remove dead TD argument to CanEvaluateSExtd.
...
llvm-svn: 93143
2010-01-11 02:43:35 +00:00
7dd540ee24
teach sext optimization to handle truncs from types that are not
...
the dest of the sext.
llvm-svn: 93128
2010-01-10 20:30:41 +00:00
39d2daa94c
teach zext optimization how to deal with truncs that don't come from
...
the zext dest type. This allows us to handle test52/53 in cast.ll,
and allows llvm-gcc to generate much better code for PR4216 in -m64
mode:
_test_bitfield: ## @test_bitfield
orl $32962, %edi
movl %edi, %eax
andl $-25350, %eax
ret
This also fixes a bug handling vector extends, ensuring that the
mask produced is a vector constant, not an integer constant.
llvm-svn: 93127
2010-01-10 20:25:54 +00:00
5370ae7b70
fix a buggy assertion, CreateIntegerCast should allow
...
integer vectors as well as just integers.
llvm-svn: 93126
2010-01-10 20:21:42 +00:00
ed3bd13c3a
Suppress a warning on gcc 4.4.
...
warning: suggest parentheses around ‘&&’ within ‘||’.
llvm-svn: 93121
2010-01-10 18:48:49 +00:00
1a05fddcdc
simplify CanEvaluateSExtd to return a bool now that we have a
...
simpler profitability predicate.
llvm-svn: 93111
2010-01-10 07:57:20 +00:00
d7816780e2
the NumCastsRemoved argument to CanEvaluateSExtd is dead, remove it.
...
llvm-svn: 93110
2010-01-10 07:42:21 +00:00
2fff10c424
now that the cost model has changed, we can always consider
...
elimination of a sign extend to be a win, which simplifies
the client of CanEvaluateSExtd, and allows us to eliminate
more casts (examples taken from real code).
llvm-svn: 93109
2010-01-10 07:40:50 +00:00
b8fd152d94
Compute isFunctionLocal in MDNode ctor or via argument in new function getWhenValsUnresolved().
...
Document PFS argument to ParseValID() and ConvertGlobalOrMetadataValIDToValue().
llvm-svn: 93108
2010-01-10 07:14:18 +00:00
d8509424a4
change the preferred canonical form for a sign extension to be
...
lshr+ashr instead of trunc+sext. We want to avoid type
conversions whenever possible, it is easier to codegen expressions
without truncates and extensions.
llvm-svn: 93107
2010-01-10 07:08:30 +00:00
Rafael Espindola