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16969 Commits

Author SHA1 Message Date
Evan Cheng
e0dc07a83f New entry. 
llvm-svn: 33569
 2007-01-27 02:33:22 +00:00
Evan Cheng
4618d3131c Thumb jumptable support. 
llvm-svn: 33568
 2007-01-27 02:29:45 +00:00
Evan Cheng
9805b66063 Thumb add / sub with carry. 
llvm-svn: 33562
 2007-01-27 00:07:15 +00:00
Lauro Ramos Venancio
f1f9f05230 Some asm directives fixes for ELF. 
Now we can compile llvm-gcc on arm-linux-gnueabi!

llvm-svn: 33558
 2007-01-26 23:24:43 +00:00
Nate Begeman
80d913651d Fix a spelling error 
llvm-svn: 33556
 2007-01-26 22:40:50 +00:00
Nate Begeman
481b84a66b Handle multiple functions, properly mangle symbols, and fix support for 
scattered relocations.

llvm-svn: 33555
 2007-01-26 22:39:48 +00:00
Jim Laskey
fdc04d1ea7 rename files 
llvm-svn: 33552
 2007-01-26 21:38:26 +00:00
Evan Cheng
55455f0532 Represent tADDspi and tSUBspi as two-address instructions. 
llvm-svn: 33551
 2007-01-26 21:33:19 +00:00
Jim Laskey
64f4242072 Change the MachineDebugInfo to MachineModuleInfo to better reflect usage 
for debugging and exception handling.

llvm-svn: 33550
 2007-01-26 21:22:28 +00:00
Lauro Ramos Venancio
762787bed7 Fix Data16bitsDirective for ELF. 
llvm-svn: 33549
 2007-01-26 21:20:45 +00:00
Evan Cheng
2b4f267d57 Conditional branch being fixed up is not the last MI in the BB, there is a 
unconditional branch following it. Simply invert the condition and swap
destinations if the conditional branch can reach the destination of the
unconditional branch:
beq L1
b   L2
=>
bne L2
b   L1

llvm-svn: 33548
 2007-01-26 20:38:26 +00:00
Lauro Ramos Venancio
ea815a6137 If the constant pool value is a extern weak symbol, emit the weak reference. 
llvm-svn: 33543
 2007-01-26 19:51:32 +00:00
Evan Cheng
d0c39ef1ca extload -> zextload 
llvm-svn: 33542
 2007-01-26 19:13:16 +00:00
Jim Laskey
23ed7d2625 Make LABEL a builtin opcode. 
llvm-svn: 33537
 2007-01-26 14:34:52 +00:00
Jim Laskey
3df3e04941 Clarify some constants. 
llvm-svn: 33536
 2007-01-26 14:19:17 +00:00
Reid Spencer
cec82ab067 For PR761: 
The Module::setEndianness and Module::setPointerSize methods have been
removed. Instead you can get/set the DataLayout. Adjust thise accordingly.

llvm-svn: 33530
 2007-01-26 08:11:39 +00:00
Reid Spencer
6770b7e879 For PR761: 
Remove the Endianness and PointerSize fields from the ModuleHeader and
replace it with the DataLayout field.

llvm-svn: 33529
 2007-01-26 08:10:24 +00:00
Reid Spencer
00a7dd7d6b For PR761: 
Remove the setEndianess and setPointerSize methods. These are now
handled via the setDataLayout method.

llvm-svn: 33527
 2007-01-26 08:07:57 +00:00
Reid Spencer
8949da79b5 Regenerate for PR645 and PR761 
llvm-svn: 33525
 2007-01-26 08:05:27 +00:00
Reid Spencer
1d28dc402d For PR645: 
Implement separation of local and global symbols. Local symbols and types
now use % prefix. Global variables and functions now use @ prefix.

For PR761:
Replace:
  target endian =
  target pointersize =
With:
  target datalayout =

llvm-svn: 33524
 2007-01-26 08:04:51 +00:00
Reid Spencer
e2ac333854 For PR645: 
Implement new syntax for local and global symbols. Types and local
symbols use the % prefix. Global variables and functions use the @ prefix.

llvm-svn: 33523
 2007-01-26 08:02:52 +00:00
Reid Spencer
cca21cf060 For PR645: 
Remove the Function::renameLocalSymbols function as it is no longer
needed.

llvm-svn: 33522
 2007-01-26 08:01:30 +00:00
Reid Spencer
93b5ba7cd2 IntegerType is a sized DerivedType too. 
llvm-svn: 33521
 2007-01-26 07:51:36 +00:00
Reid Spencer
641bcdce55 Clean up comments and assert messages that still refer to the old type names. 
llvm-svn: 33520
 2007-01-26 07:37:34 +00:00
Reid Spencer
25d0264daa Fix an assertion message. 
llvm-svn: 33519
 2007-01-26 06:30:34 +00:00
Evan Cheng
c81bceda82 SplitBlockBeforeInstr() insert a unconditional branch to the next BB. This 
is unnecessary when we are fixing up a conditional branch since we will be
adding a unconditional branch to the destination of the original branch.

llvm-svn: 33517
 2007-01-26 02:02:39 +00:00
Devang Patel
f1ef346a53 Remove dead code. 
CallGraphSCCPass does not need to implement runOnModule().
It supports runOnSCC().

llvm-svn: 33516
 2007-01-26 01:08:18 +00:00
Evan Cheng
c5a454b111 Need to scan the function for branches even if there aren't any constants. 
llvm-svn: 33515
 2007-01-26 01:04:44 +00:00
Devang Patel
bf44036fbf Inherit CallGraphSCCPass directly from Pass. 
llvm-svn: 33514
 2007-01-26 00:47:38 +00:00
Evan Cheng
6a46a78547 Forgot to update this. 
llvm-svn: 33512
 2007-01-25 23:31:04 +00:00
Devang Patel
a9eae6951d Inherit BasicBlockPass directly from Pass. 
llvm-svn: 33511
 2007-01-25 23:23:25 +00:00
Evan Cheng
a229bc12be Add comment, fix typo, reduce memory usage, etc. 
llvm-svn: 33510
 2007-01-25 23:18:59 +00:00
Evan Cheng
a47f2cc065 I am an idiot. 
llvm-svn: 33509
 2007-01-25 23:18:16 +00:00
Evan Cheng
970ed5d59f Fix comment. 
llvm-svn: 33508
 2007-01-25 22:48:25 +00:00
Evan Cheng
9009b02367 - Tell PEI that PPC will handle stack frame rounding itself. 
- Do not round up to max. alignment of stack object if it is > stack alignment.
  It will have to be handled with dynamic aligning code.

llvm-svn: 33505
 2007-01-25 22:25:04 +00:00
Evan Cheng
b64363a085 Added a MRegisterInfo hook that tells PEI the target is responsible for 
rounding the stack frame to a multiple of stack alignment.

llvm-svn: 33504
 2007-01-25 22:12:41 +00:00
Lauro Ramos Venancio
a3788dc56b Fix elf object definition. 
llvm-svn: 33502
 2007-01-25 20:11:04 +00:00
Evan Cheng
7dccb7be86 Doh. Skip JT branches. 
llvm-svn: 33501
 2007-01-25 19:43:52 +00:00
Chris Lattner
1e8602cf97 Make llvm-extract preserve the callingconv of prototypes in the extracted 
code.

llvm-svn: 33500
 2007-01-25 17:38:26 +00:00
Jim Laskey
56316d12bb 1. Remove dwarf-verbose option (now asm-verbose.) 
2. Clean up end of lines.

llvm-svn: 33499
 2007-01-25 15:45:58 +00:00
Jim Laskey
0e387f9cf0 Migrate print routines to asm to be shared by exception handling. 
llvm-svn: 33498
 2007-01-25 15:12:02 +00:00
Evan Cheng
d7c809c7be Added (preliminary) branch shortening capability to constantpool island pass. 
llvm-svn: 33497
 2007-01-25 03:12:46 +00:00
Evan Cheng
9d937d1065 Getting rid uses of evil std::set<> 
llvm-svn: 33496
 2007-01-25 03:07:27 +00:00
Chris Lattner
18aeb42a6f Fix test/CFrontend/2007-01-24-InlineAsmCModifier.c on X86. The %c modifier 
says that no $ prefix should be emitted on X86.

llvm-svn: 33495
 2007-01-25 02:53:24 +00:00
Chris Lattner
c3f461a03c Fix test/CFrontend/2007-01-24-InlineAsmCModifier.c on PPC 
llvm-svn: 33494
 2007-01-25 02:52:50 +00:00
Andrew Lenharth
42ced99f24 FTOIT and ITOFT are bit converts, and if we drop 21264s, are always available 
llvm-svn: 33492
 2007-01-24 21:09:16 +00:00
Jim Laskey
ba1dc7a8c7 Call frames for intel. 
llvm-svn: 33490
 2007-01-24 19:15:24 +00:00
Jim Laskey
ebaec45158 80 columns 
llvm-svn: 33489
 2007-01-24 18:50:57 +00:00
Jim Laskey
a67f14502d Repair debug frames as a prelude to eh_frames. Switched to using MachineMoves 
by value so that clean up is less confusing (these vectors tend to be small.)

llvm-svn: 33488
 2007-01-24 18:45:13 +00:00
Andrew Lenharth
fcb8af0f84 Fix unordered fp on alpha 
llvm-svn: 33487
 2007-01-24 18:43:14 +00:00
Chris Lattner
784201d1b9 Fix a misencoding of CBW and CWD. This fixes PR1030. 
llvm-svn: 33486
 2007-01-24 18:31:00 +00:00
Jim Laskey
dabb50be28 Use asm printer to emit alignment 
llvm-svn: 33485
 2007-01-24 13:12:32 +00:00
Evan Cheng
c6db78ab84 Use PC relative ldr to load from a constantpool in Thumb mode. 
llvm-svn: 33484
 2007-01-24 08:53:17 +00:00
Bill Wendling
c0ecd3ff91 Make ivars private and use getters. Have the MachOWriter return "Mach-O 
Writer" for the pass name.

llvm-svn: 33483
 2007-01-24 07:13:56 +00:00
Evan Cheng
bfd7e70770 Renamed getTypeAlignmentShift() to getPreferredTypeAlignmentShift(). 
llvm-svn: 33482
 2007-01-24 07:03:39 +00:00
Bill Wendling
68d62e3a4c Add a field for and construction of the PPCMachOWriterInfo object. 
llvm-svn: 33480
 2007-01-24 03:41:36 +00:00
Bill Wendling
a34cc9d823 Move the getJTRelocation method out of here. 
llvm-svn: 33479
 2007-01-24 03:40:33 +00:00
Bill Wendling
d6f818e2fa Use the TargetMachOWriterInfo class to get this information. 
llvm-svn: 33478
 2007-01-24 03:38:47 +00:00
Bill Wendling
24e03bd501 New "TargetMachOWriterInfo" class. It holds target-specific information 
that the MachOWriter needs in order to do its writing stuff 'n things.

llvm-svn: 33475
 2007-01-24 03:36:05 +00:00
Evan Cheng
1630c86beb Allow [ fi#c, imm ] as ARM load / store addresses. 
llvm-svn: 33474
 2007-01-24 02:45:25 +00:00
Evan Cheng
fa613cdd06 Various Thumb mode load / store isel bug fixes. 
llvm-svn: 33472
 2007-01-24 02:21:22 +00:00
Evan Cheng
5f947e4e2f - Reorg Thumb load / store instructions. Combine each rr and ri pair of 
instructions into one (e.g. tLDRrr, tLDRri -> tLDR).
- Thumb ldrsb and ldrsh only have the [reg, reg] address format. If the
  address is not an add, materialize a 0 immediate into a register and use
  it as the offset field.

llvm-svn: 33470
 2007-01-23 22:59:13 +00:00
Devang Patel
f8db9e212e Fix typo. 
llvm-svn: 33467
 2007-01-23 21:55:17 +00:00
Devang Patel
cfd7cfeccd Add CallGraphSCCPass::assignPassManager(). 
This enables CalLGraphPassManager.

llvm-svn: 33466
 2007-01-23 21:52:35 +00:00
Evan Cheng
dc97533dd3 Darwin HiddenDirective is .private_extern. 
llvm-svn: 33465
 2007-01-23 19:06:03 +00:00
Anton Korobeynikov
2079992c16 Moved disassembler to libSystem 
llvm-svn: 33461
 2007-01-23 10:26:08 +00:00
Evan Cheng
b6a4a7f72a PEI is now responsible for adding MaxCallFrameSize to frame size and align the stack. Each target can further adjust the frame size if necessary. 
llvm-svn: 33460
 2007-01-23 09:38:11 +00:00
Chris Lattner
c2b21d2900 Switch this to use SmallSet to avoid mallocs in the common case. 
llvm-svn: 33457
 2007-01-23 00:59:48 +00:00
Evan Cheng
d9d93832b0 hasFP() is now a virtual method of MRegisterInfo. 
llvm-svn: 33455
 2007-01-23 00:57:47 +00:00
Chris Lattner
f830aab43a Fix a bunch of inline asm failures 
llvm-svn: 33454
 2007-01-23 00:36:17 +00:00
Evan Cheng
cea1d1c5f8 Remove the DoubleTy special case. 
llvm-svn: 33449
 2007-01-22 23:13:55 +00:00
Evan Cheng
25584afca7 ARM AAPCS abi (Linux, etc.) requires 8-byte double / long alignment; Mac 
requires 4-bytes alignment.

llvm-svn: 33448
 2007-01-22 23:13:01 +00:00
Evan Cheng
c76a2c6c18 Double and long preferred alignment set to 8 bytes. 
llvm-svn: 33447
 2007-01-22 23:11:06 +00:00
Evan Cheng
8de7964067 Double and long preferred alignment is 8 byte. 
llvm-svn: 33446
 2007-01-22 23:09:50 +00:00
Evan Cheng
ab307e2180 - getTypeAlignmentShift() should be returning preferred alignment, not ABI 
alignment.
- getPreferredAlignmentLog(): remove Double special case.

llvm-svn: 33445
 2007-01-22 23:08:19 +00:00
Evan Cheng
818c6bdfa2 Linux GOT indirect reference is only necessary in PIC mode. 
llvm-svn: 33441
 2007-01-22 21:34:25 +00:00
Evan Cheng
b55dabdc80 Double and Long preferred alignment is 4 for Darwin, 8 for Linux. 
llvm-svn: 33440
 2007-01-22 21:24:13 +00:00
Evan Cheng
30ef170ddf Use bl to call Thumb fuctions directly. 
llvm-svn: 33433
 2007-01-22 19:40:10 +00:00
Reid Spencer
7811139c74 Cleanup checks in the load and store of casted pointer transforms. Two 
changes: (1) don't special case for i1 any more, (2) use the new
TargetData::getTypeSizeInBits method to ensure source and dest are the
same bit width.

llvm-svn: 33427
 2007-01-22 05:51:25 +00:00
Jeff Cohen
e1e3a83b49 Fix this error: 
llvm[2]: Compiling llvmAsmParser.cpp for Debug build
/usr/home/jeffc/llvm/lib/AsmParser/llvmAsmParser.y: In function 'int llvmAsmparse()':
/usr/home/jeffc/llvm/lib/AsmParser/llvmAsmParser.y:1846: error: expected `;' before '}' token

llvm-svn: 33425
 2007-01-21 19:19:31 +00:00
Chris Lattner
601692407e add a note 
llvm-svn: 33423
 2007-01-21 07:03:37 +00:00
Reid Spencer
82909e607c Whoops, fix typo in last commit. 
llvm-svn: 33417
 2007-01-21 02:29:10 +00:00
Reid Spencer
e33c18f4d2 For PR970: 
Clean up handling of isFloatingPoint() and dealing with PackedType.
Patch by Gordon Henriksen!

llvm-svn: 33415
 2007-01-21 00:29:26 +00:00
Reid Spencer
71e0eb3771 Revise the store V, (cast P) -> store (cast V) -> P transform. 
We only want to do this if the src and destination types have the same
bit width. This patch uses TargetData::getTypeSizeInBits() instead of
making a special case for integer types and avoiding the transform if
they don't match.

llvm-svn: 33414
 2007-01-20 23:35:48 +00:00
Reid Spencer
c5140714bc Implement a getTypeSizeInBits method. This helps in transforms that want 
to ensure the bit size of a type is identical before proceeding.

llvm-svn: 33413
 2007-01-20 23:32:04 +00:00
Owen Anderson
4de8fa6334 TargetData assumes (and some regression tests depend on it) that the size of 
an unspecified datatype in the datalayout is capped by the size of a pointer.

llvm-svn: 33411
 2007-01-20 23:07:13 +00:00
Chris Lattner
86af1504b4 trivial cleanup 
llvm-svn: 33410
 2007-01-20 22:39:15 +00:00
Chris Lattner
9df9e3e57b Teach TargetData to handle 'preferred' alignment for each target, and use 
these alignment amounts to align scalars when we can.  Patch by Scott Michel!

llvm-svn: 33409
 2007-01-20 22:35:55 +00:00
Chris Lattner
dde5663eea DOUT still evaluates side effects, even though it doesn't print. This means 
that disassembleBuffer will be called even if NDEBUG, but the result will
be ignored.

llvm-svn: 33408
 2007-01-20 20:51:43 +00:00
Reid Spencer
826ff3f805 For PR808: 
NetBSD also doesn't have pthread_mutexattr_setpshared

llvm-svn: 33406
 2007-01-20 20:44:38 +00:00
Reid Spencer
16f559f465 Implement the signed icmp instructions properly. To do this we introduce 
a small inline function to sign extend a uint64_t value based on its
type's bitwidth. This function is then used in both executeSExtInst and
the various executeICMP_S** functions.

llvm-svn: 33403
 2007-01-20 20:12:29 +00:00
Evan Cheng
6271410520 Round up stack to multiple of alignment only if it's a leaf function without alloca. 
llvm-svn: 33401
 2007-01-20 10:22:33 +00:00
Evan Cheng
174826c1b9 One more try... 
llvm-svn: 33400
 2007-01-20 10:17:53 +00:00
Evan Cheng
672910d722 Last check-in was bogus. There is no need to align the stack if the function is a leaf function (and without alloca). 
llvm-svn: 33399
 2007-01-20 10:11:56 +00:00
Evan Cheng
ae02dfb090 Fix for PR1108: type of insert_vector_elt index operand is PtrVT, not MVT::i32. 
llvm-svn: 33398
 2007-01-20 10:10:26 +00:00
Owen Anderson
906c09f205 Correct a comment. 
llvm-svn: 33397
 2007-01-20 10:07:23 +00:00
Evan Cheng
4e647ad333 Remove an unused variable. 
llvm-svn: 33396
 2007-01-20 09:21:54 +00:00
Reid Spencer
14d12fbaa6 Implement bit-accurate sext instruction. 
This patch fixes test/Integer/2007-01-17-TruncSext.ll

llvm-svn: 33394
 2007-01-20 08:32:52 +00:00
Evan Cheng
5ea6a8d9e4 Prologue and epilogue bugs for non-Darwin targets. 
llvm-svn: 33390
 2007-01-20 03:24:07 +00:00
Evan Cheng
a6803554ab Clean up ARM PEI code. 
llvm-svn: 33389
 2007-01-20 02:09:25 +00:00
Evan Cheng
5807fbc934 Backend is reponsible for aligning the stack. 
llvm-svn: 33388
 2007-01-20 02:08:16 +00:00
Evan Cheng
7e02b3a690 We not align the final stack slot but instead let the target do so in emitPrologue(). Each target can make adjustments to the stack frame and re-align the stack as it deem appropriate. Do not align it twice which can end up wasting stack space. 
llvm-svn: 33387
 2007-01-20 02:07:13 +00:00
Evan Cheng
60dd79e443 GetRegForReload() now keeps track which registers have been considered and rejected during its quest to find a suitable reload register. This avoids an infinite loop in case like this: 
t1 := op t2, t3
  t2 <- assigned r0 for use by the reload but ended up reuse r1
  t3 <- assigned r1 for use by the reload but ended up reuse r0
  t1 <- desires r1
        sees r1 is taken by t2, tries t2's reload register r0
        sees r0 is taken by t3, tries t3's reload register r1
        sees r1 is taken by t2, tries t2's reload register r0 ...

llvm-svn: 33382
 2007-01-19 22:40:14 +00:00
Reid Spencer
b2b35908d6 Unbreak Darwin. 
llvm-svn: 33375
 2007-01-19 22:04:24 +00:00
Reid Spencer
2b799d8208 Help the lli interpreter find the stderr/stdin/stdout symbols. These are 
needed for output to be generated. On Linux these are both global vars and
macro definitions so we have to special case Linux.

llvm-svn: 33374
 2007-01-19 21:41:04 +00:00
Reid Spencer
5d29c5a81b Handle each of stderr/stdin/stdout separately. 
llvm-svn: 33373
 2007-01-19 21:30:39 +00:00
Reid Spencer
4bcddb2f04 Remove dead methods in the ValTypes. 
llvm-svn: 33372
 2007-01-19 21:25:12 +00:00
Reid Spencer
af3564823f For this transform: store V, (cast P) -> store (cast V), P 
don't allow the transform if V and the pointer's element type are different
width integer types.

llvm-svn: 33371
 2007-01-19 21:20:31 +00:00
Reid Spencer
14b42c0040 For PR1043: 
This is the final patch for this PR. It implements some minor cleanup
in the use of IntegerType, to wit:
1. Type::getIntegerTypeMask -> IntegerType::getBitMask
2. Type::Int*Ty changed to IntegerType* from Type*
3. ConstantInt::getType() returns IntegerType* now, not Type*

This also fixes PR1120.

Patch by Sheng Zhou.

llvm-svn: 33370
 2007-01-19 21:13:56 +00:00
Evan Cheng
5d0be572b5 Code clean up. Use def : pat instead of defining new instructions. 
llvm-svn: 33368
 2007-01-19 20:27:35 +00:00
Andrew Lenharth
0014d1c74b fix build on amd64 
llvm-svn: 33367
 2007-01-19 20:17:59 +00:00
Evan Cheng
51292f4863 isDarwin -> isTargetDarwin 
llvm-svn: 33366
 2007-01-19 19:28:01 +00:00
Evan Cheng
99725bd310 Restructure code a bit to make use of continue (simplifying things). Generalize 
the .zerofill directive emission to not be darwin-specific.

llvm-svn: 33365
 2007-01-19 19:25:36 +00:00
Evan Cheng
025816f18c Darwin doesn't support .bss, but it does have .zerofill 
llvm-svn: 33364
 2007-01-19 19:23:47 +00:00
Evan Cheng
b1a4190523 Introduce TargetType's ELF and Darwin. 
llvm-svn: 33363
 2007-01-19 19:22:40 +00:00
Evan Cheng
9203bd4339 Modify emission of jump tables on darwin to emit an extra "l" label that 
delimits the boundaries of jump tables.  This lets the linker's dead code
stripping optimization do a better job.

llvm-svn: 33362
 2007-01-19 18:59:56 +00:00
Evan Cheng
ced4fcb608 Remove this xform: 
(shl (add x, c1), c2) -> (add (shl x, c2), c1<<c2)
Replace it with:
(add (shl (add x, c1), c2), ) -> (add (add (shl x, c2), c1<<c2), )

This fixes test/CodeGen/ARM/smul.ll

llvm-svn: 33361
 2007-01-19 17:51:44 +00:00
Lauro Ramos Venancio
f53f62b91d Fix section definition. 
llvm-svn: 33359
 2007-01-19 17:33:22 +00:00
Anton Korobeynikov
944088f221 Adding disassembler interface and external hook to udis86 library. 
llvm-svn: 33358
 2007-01-19 17:25:17 +00:00
Evan Cheng
c6e1d453d3 ARM backend contribution from Apple. 
llvm-svn: 33353
 2007-01-19 07:51:42 +00:00
Nick Lewycky
b8c2b60bb5 Needed to build on PPC Linux. 
llvm-svn: 33352
 2007-01-19 04:36:02 +00:00
Reid Spencer
d331480e5b Back out last changes for dataLayout. Much more work is needed. 
llvm-svn: 33347
 2007-01-19 00:07:16 +00:00
Reid Spencer
de679f8779 For PR761: 
Implement reading and writing of the Module's data layout string.

llvm-svn: 33346
 2007-01-18 23:24:24 +00:00
Evan Cheng
f6b1a88a1a - Target PIC style is no longer affected by relocation model. 
- In x86-64 mode, symbols with external linkage (not just symbols which are
  defined externally) requires GOT indirect reference.
- Stylistic code clean up.

llvm-svn: 33345
 2007-01-18 22:27:12 +00:00
Chris Lattner
ef4715a124 Fix InstCombine/2007-01-18-VectorInfLoop.ll, a case where instcombine 
infinitely loops.

llvm-svn: 33343
 2007-01-18 22:16:33 +00:00
Reid Spencer
7ba10cda74 Clean up some code around the store V, (cast P) -> store (cast V), P 
transform. Change some variable names so it is clear what is source and
what is dest of the cast. Also, add an assert to ensure that the integer
to integer case is asserting if the bitwidths are different. This prevents
illegal casts from being formed and catches bitwidth bugs sooner.

llvm-svn: 33337
 2007-01-18 18:54:33 +00:00
Reid Spencer
b52af65aaa Use a cheaper computation. 
llvm-svn: 33336
 2007-01-18 18:14:49 +00:00
Reid Spencer
08e261a5f6 Fix a regression in the last patch. When constructing a BitMask, be careful 
not to overflow 64-bits and end up with a 0 mask. This caused i64 values to
always be stored as 0 with lots of consequential damage to nightly test.

llvm-svn: 33335
 2007-01-18 18:01:32 +00:00
Chris Lattner
54dac5f09e move contents of PR587 to here. 
llvm-svn: 33333
 2007-01-18 07:34:57 +00:00
Reid Spencer
80bf052680 Provide an isPowerOf2ByteWidth method for the IntegerType class. This will 
mostly be used by back ends that wish to distinguish between integer types
that fit evenly within a natural integer type and those that don't.

llvm-svn: 33328
 2007-01-18 02:59:54 +00:00
Bill Wendling
62dff8125a The zerofill directive needs a newline after it. 
llvm-svn: 33327
 2007-01-18 02:30:19 +00:00
Reid Spencer
e242773c58 Use the new maskToBitWidth function to ensure that the results of 
computations do not overflow the intended bit width.

llvm-svn: 33326
 2007-01-18 02:12:51 +00:00
Reid Spencer
bff2bccb7c Add an inline helper function that masks a GenericValue to a specified 
bit width.

llvm-svn: 33325
 2007-01-18 02:12:10 +00:00
Evan Cheng
7ff918163b Minor code clean up. 
llvm-svn: 33323
 2007-01-18 01:49:58 +00:00
Reid Spencer
539c40505b Make shl instruction mask its result to the correct bitsize. This is 
sufficient to get llvm-test/SingleSource/UnitTests/Integer/general-test.ll
working with lli in interpreter mode.

llvm-svn: 33321
 2007-01-18 01:32:46 +00:00
Reid Spencer
0524da8d3d Two changes: 
1. Fix logic for executeGEP. Only 32-bit and 64-bit integer types are
   acceptable as indices.
2. Ensure that all integer cast operations truncate their result to the
   integer size of the operand.

llvm-svn: 33318
 2007-01-18 01:25:42 +00:00
Reid Spencer
de3db66983 Make sure we truncate stored values to their bit width. 
llvm-svn: 33317
 2007-01-18 01:24:02 +00:00
Bill Wendling
af4f1b8791 Have the OutputBuffer take the is64Bit and isLittleEndian booleans. 
llvm-svn: 33316
 2007-01-18 01:23:11 +00:00
Chris Lattner
770735e1ca Modify emission of jump tables on darwin to emit an extra "l" label that 
delimits the boundaries of jump tables.  This lets the linker's dead code
stripping optimization do a better job.

llvm-svn: 33315
 2007-01-18 01:15:58 +00:00
Chris Lattner
e0c1ba6269 add new JumpTableSpecialLabelPrefix hook to asmprinter for jumptable emission. 
llvm-svn: 33314
 2007-01-18 01:12:56 +00:00
Bill Wendling
9306626c66 Changed to use the OutputBuffer instead of the methods in MachO and ELF 
writers.

llvm-svn: 33311
 2007-01-17 22:22:31 +00:00
Devang Patel
756af73d3a Add CGPassManager. 
llvm-svn: 33309
 2007-01-17 21:45:01 +00:00
Devang Patel
cda3b4d76f Update ModulePass::assignPassManager() to take into account Preferred 
Pass Manager Type.

llvm-svn: 33308
 2007-01-17 21:19:23 +00:00
Devang Patel
b40f9ee72e s/PassDebugging_New/PassDebugging/g 
llvm-svn: 33307
 2007-01-17 20:33:36 +00:00
Devang Patel
866ecabe21 Update assignPassManager() signature to allow selection of preferred 
pass manager type. This allows new FPPassManager to select Call Graph
Pass Manager (if available) as its parent.

llvm-svn: 33306
 2007-01-17 20:30:17 +00:00
Chris Lattner
cea9f391af restructure code a bit to make use of continue (simplifying things). Generalize 
the .zerofill directive emission to not be darwin-specific

llvm-svn: 33304
 2007-01-17 17:44:25 +00:00
Chris Lattner
5f4435800e darwin doesn't support .bss, but it does have .zerofill 
llvm-svn: 33303
 2007-01-17 17:43:33 +00:00
Chris Lattner
1a2c170bc4 add new directive 
llvm-svn: 33302
 2007-01-17 17:42:42 +00:00
Anton Korobeynikov
2509765bef * Fix one more bug in PIC codegen: extra load is needed for *all* 
non-statics.
* Introduce new option to output zero-initialized data to .bss section.
This can reduce size of binaries. Enable it by default for ELF &
Cygwin/Mingw targets. Probably, Darwin should be also added.

llvm-svn: 33299
 2007-01-17 10:33:08 +00:00
Bill Wendling
6cf6bb2d24 Revert patch. 
llvm-svn: 33298
 2007-01-17 09:06:13 +00:00