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9229 Commits

Author SHA1 Message Date
Chris Lattner
052e062f08 Use X86FastEmitCompare for FCMP_OEQ and FCMP_UNE: it doesn't 
change the generated code, but makes the code simpler.

llvm-svn: 57550
 2008-10-15 04:29:23 +00:00
Chris Lattner
d7024dafbf refactor compare emission out into a new X86FastEmitCompare method, 
which makes it easy to share the compare/imm folding logic with 'setcc'.
This shaves a bunch of instructions off the common select case, which
happens a lot in llvm-gcc.

llvm-svn: 57549
 2008-10-15 04:26:38 +00:00
Chris Lattner
cbea6edde5 Fold immediates into compares when possible, producing "cmp $4, %eax" instead of 
loading 4 into a register and then doing the compare.

llvm-svn: 57548
 2008-10-15 04:13:29 +00:00
Chris Lattner
905dbd0dea more minor refactoring of X86SelectBranch, no functionality change. 
llvm-svn: 57547
 2008-10-15 04:02:26 +00:00
Chris Lattner
99d88895b6 factor buildmi calls in X86SelectBranch 
llvm-svn: 57546
 2008-10-15 03:58:05 +00:00
Chris Lattner
97e96bcca0 factor some more BuildMI's in X86SelectCmp 
llvm-svn: 57545
 2008-10-15 03:52:54 +00:00
Chris Lattner
e66c12b3f5 factor some BuildMI calls, no functionality change. 
llvm-svn: 57544
 2008-10-15 03:47:17 +00:00
Evan Cheng
cb8b4e9dd4 - Add target lowering hooks that specify which setcc conditions are illegal, 
i.e. conditions that cannot be checked with a single instruction. For example,
SETONE and SETUEQ on x86.
- Teach legalizer to implement *illegal* setcc as a and / or of a number of
legal setcc nodes. For now, only implement FP conditions. e.g. SETONE is
implemented as SETO & SETNE, SETUEQ is SETUO | SETEQ.
- Move x86 target over.

llvm-svn: 57542
 2008-10-15 02:05:31 +00:00
Dan Gohman
c070ffc493 FastISel support for exception-handling constructs. 
- Move the EH landing-pad code and adjust it so that it works
   with FastISel as well as with SDISel.
 - Add FastISel support for @llvm.eh.exception and
   @llvm.eh.selector.

llvm-svn: 57539
 2008-10-14 23:54:11 +00:00
Dale Johannesen
19407daf55 Accept -march=i586, because gcc does (a synonym 
for pentium).  Fixes
gcc.target/i386/20000720-1.c
gcc.target/i386/pr26826.c

llvm-svn: 57528
 2008-10-14 22:06:33 +00:00
Evan Cheng
3faedff2de Rename LoadX to LoadExt. 
llvm-svn: 57526
 2008-10-14 21:26:46 +00:00
Jim Grosbach
d0ff59ec42 Update ARM Insn encoding to get endian-ness to match the documentation (31-0 left to right) 
llvm-svn: 57524
 2008-10-14 20:36:24 +00:00
Dan Gohman
9543edc4ef Fix command-line option printing to print two spaces where needed, 
instead of requiring all "short description" strings to begin with
two spaces. This makes these strings less mysterious, and it fixes
some cases where short description strings mistakenly did not
begin with two spaces.

llvm-svn: 57521
 2008-10-14 20:25:08 +00:00
Evan Cheng
39a819027c Fix indentation. 
llvm-svn: 57508
 2008-10-14 17:15:39 +00:00
Dan Gohman
e08e0dcfcc When doing the very-late shift-and address-mode optimization, 
create a new DAG node to represent the new shift to keep the
DAG consistent, even though it'll almost always be folded into
the address.

If a user of the resulting address has multiple uses, the
nodes may get revisited by a later MatchAddress call, in which
case DAG inconsistencies do matter.

This fixes PR2849.

llvm-svn: 57465
 2008-10-13 20:52:04 +00:00
Anton Korobeynikov
6204f4ac43 Update size of inst correctly with segment override. 
llvm-svn: 57414
 2008-10-12 10:30:11 +00:00
Chris Lattner
7910d59d44 Change CALLSEQ_BEGIN and CALLSEQ_END to take TargetConstant's as 
parameters instead of raw Constants.  This prevents the constants from
being selected by the isel pass, fixing PR2735.

llvm-svn: 57385
 2008-10-11 22:08:30 +00:00
Duncan Sands
f175d9eae0 Fix comment typo. 
llvm-svn: 57381
 2008-10-11 19:34:24 +00:00
Anton Korobeynikov
d8b3e6f0ce Add ability to override segment (mostly for code emitter purposes). 
llvm-svn: 57380
 2008-10-11 19:09:15 +00:00
Dale Johannesen
03d0a7d70c Fix SSE4.1 roundss, roundsd. While the instructions have 
the same pattern as roundpd/roundps, the Intel compiler 
builtins do not:  rounds* has an extra operand.  Fixes
gcc.target/i386/sse4_1-rounds[sd]-[1234].c

llvm-svn: 57370
 2008-10-10 23:51:03 +00:00
Anton Korobeynikov
e44fccb2f0 Fix a thinko and unbreak sparc default CC 
llvm-svn: 57368
 2008-10-10 21:47:37 +00:00
Anton Korobeynikov
f5398df73c Extend set of return registers on sparc until someone will implement MRV support there. At least, this will allow libgcc compile, however we are not ABI-compatible with stuff compiled with native gcc. 
llvm-svn: 57364
 2008-10-10 20:30:14 +00:00
Anton Korobeynikov
1ead869e67 Ignore extra 'r' modifier for now 
llvm-svn: 57363
 2008-10-10 20:29:50 +00:00
Anton Korobeynikov
ffdc3498b4 Use expand for smul_lohi for now 
llvm-svn: 57362
 2008-10-10 20:29:31 +00:00
Anton Korobeynikov
8ed548b24a Add rudimentary support for 'r' register operand 
llvm-svn: 57359
 2008-10-10 20:28:10 +00:00
Anton Korobeynikov
ba8bb3e12f Cleanup 
llvm-svn: 57358
 2008-10-10 20:27:31 +00:00
Anton Korobeynikov
6054846989 Add rudimentary asmprinter support for printing inline asm operands for sparc. 
llvm-svn: 57346
 2008-10-10 10:15:03 +00:00
Anton Korobeynikov
a12d563611 Add dummy 'm' inline asm constraint handler for Sparc. I'm not sure, whether it is correct, however :) 
llvm-svn: 57345
 2008-10-10 10:14:47 +00:00
Anton Korobeynikov
8cfd14b138 Cleanup 
llvm-svn: 57344
 2008-10-10 10:14:15 +00:00
Dale Johannesen
075a62519f Add a "loses information" return value to APFloat::convert 
and APFloat::convertToInteger.  Restore return value to
IEEE754.  Adjust all users accordingly.

llvm-svn: 57329
 2008-10-09 23:00:39 +00:00
Dale Johannesen
9e57068854 Rename APFloat::convertToAPInt to bitcastToAPInt to 
make it clearer what the function does.  No functional
change.

llvm-svn: 57325
 2008-10-09 18:53:47 +00:00
Chris Lattner
284ae75537 get CodeGen/Alpha/mul128.ll to work. 
llvm-svn: 57318
 2008-10-09 04:50:56 +00:00
Dale Johannesen
817eff07b1 (re)Put const weak strings in appropriate section on Darwin. 
g++dg/abi/key2.C

llvm-svn: 57309
 2008-10-08 21:49:47 +00:00
Jim Grosbach
974799922e Comment to be explicit that the enumeration values for CondCodes matter. 
llvm-svn: 57295
 2008-10-08 16:24:35 +00:00
Duncan Sands
bc53ce331a Use template to distinguish between function variants. 
GCC 4.4.0 gives an error on the "int" declaration for example
saying that it has already been declared (using the "short"
one). Using templates here allow the compiler to distinguish
between the function to choose.

Also, "llvm/Support/DataTypes.h" was not included, leading to
error messages about not knowing "uint32_t" for example.

Patch by Samuel Tardieu.

llvm-svn: 57292
 2008-10-08 07:44:52 +00:00
Duncan Sands
8f296a3788 Add <cstdio> include where needed by gcc-4.4. 
Patch by Samuel Tardieu.

llvm-svn: 57291
 2008-10-08 07:23:46 +00:00
Dan Gohman
c65ca09308 Add MBB successors and physreg Uses in the same order that 
SDISel typically adds them in. This makes it a little easier
to compare FastISel output with SDISel output.

llvm-svn: 57266
 2008-10-07 22:10:33 +00:00
Dan Gohman
2561119124 Instead of emitting an implicit use for the super-register of 
X86::CL that was used, emit an EXTRACT_SUBREG from the CL
super-register to CL. This more precisely describes how the
CL register is being used.

llvm-svn: 57264
 2008-10-07 21:50:36 +00:00
Jim Grosbach
8ac554209f Unconditional branch instruction encoding fix. Needs to use ABI, not AXI, to get the proper opcode bits. 
llvm-svn: 57262
 2008-10-07 21:08:09 +00:00
Jim Grosbach
5fb8bb7434 need ARM.h for ARMCC definition 
llvm-svn: 57261
 2008-10-07 21:01:51 +00:00
Owen Anderson
c9a628af26 Add an option to enable StrongPHIElimination, for ease of testing. 
llvm-svn: 57259
 2008-10-07 20:22:28 +00:00
Jim Grosbach
d44d20be6e Encode the conditional execution predicate when JITing. 
llvm-svn: 57258
 2008-10-07 19:05:35 +00:00
Dale Johannesen
3d2e449078 Model hardwired inputs & outputs of x86 8-bit divides correctly. 
Fixes local RA miscompilation of gcc.c-torture/execute/20020904-1.c -O0.

llvm-svn: 57257
 2008-10-07 18:54:28 +00:00
Jim Grosbach
61f8207ac9 Clarify naming and correct conditional so that CMP and CMN instructions get the Rn operand encoded properly 
llvm-svn: 57252
 2008-10-07 17:42:09 +00:00
Jim Grosbach
a52546fec4 Fix Opcode values of CMP and CMN 
llvm-svn: 57251
 2008-10-07 17:40:46 +00:00
Anders Carlsson
a9c42526f8 Certain patterns involving the "movss" instruction were marked as requiring SSE2, when in reality movss is an SSE1 instruction. 
llvm-svn: 57246
 2008-10-07 16:14:11 +00:00
Andrew Lenharth
7a997d1cfd Note that ADDC and company don't actually expand yet (missing in legalize 
llvm-svn: 57226
 2008-10-07 02:10:26 +00:00
Evan Cheng
88d76ffe8a Fix PR2850 and PR2863. Only generate movddup for 128-bit SSE vector shuffles. 
llvm-svn: 57210
 2008-10-06 21:13:08 +00:00
Devang Patel
07a9ce22e4 It is possible that all functions in one module are not being 
optimized for size. Set OptForSize for each function separately.

llvm-svn: 57182
 2008-10-06 18:03:39 +00:00
Devang Patel
4f91b766d2 Remove unncessary isDeclaration() checks. 
llvm-svn: 57179
 2008-10-06 17:30:07 +00:00
Anton Korobeynikov
8106145480 Emit type-correct constant null. Also fix a typo. 
Patch by Robert G. Jakabosky!

llvm-svn: 57110
 2008-10-05 15:07:06 +00:00
Anton Korobeynikov
1f7e8162d9 Fix weird think-o and unbreak build on all gcc-3.4.x-based platforms (e.g. mingw) 
llvm-svn: 57106
 2008-10-05 08:53:29 +00:00
Chris Lattner
ed0f84ee2d this case is matched now. 
llvm-svn: 57096
 2008-10-05 02:16:12 +00:00
Anton Korobeynikov
4cc9051fbb Revert r56675 - it breaks unwinding runtime everywhere. 
llvm-svn: 57048
 2008-10-04 11:09:36 +00:00
Dale Johannesen
dc83b95ba5 Make atomic Swap work, 64-bit on x86-32. 
Make it all work in non-pic mode.

llvm-svn: 57034
 2008-10-03 22:25:52 +00:00
Dale Johannesen
27d8955b8f Pass MemOperand through for 64-bit atomics on 32-bit, 
incidentally making the case where the memop is a
pointer deref work.  Fix cmp-and-swap regression.

llvm-svn: 57027
 2008-10-03 19:41:08 +00:00
Dan Gohman
00034b1416 Avoid creating two TargetLowering objects for each target. 
Instead, just create one, and make sure everything that needs
it can access it. Previously most of the SelectionDAGISel
subclasses all had their own TargetLowering object, which was
redundant with the TargetLowering object in the TargetMachine
subclasses, except on Sparc, where SparcTargetMachine
didn't have a TargetLowering object. Change Sparc to work
more like the other targets here.

llvm-svn: 57016
 2008-10-03 16:55:19 +00:00
Dan Gohman
e41ac02dce Remove an unused field. 
llvm-svn: 57014
 2008-10-03 16:17:33 +00:00
Jim Grosbach
d9ff019d3e Indexing off by one resulted in errant encoding of source register for 
reg->reg moves.

llvm-svn: 57011
 2008-10-03 15:53:56 +00:00
Jim Grosbach
e398f553b2 NeedStub/DoesntNeedStub logic was reversed, leading to not using a stub 
for global relocations that do need them (libc calls, for example).

llvm-svn: 57010
 2008-10-03 15:52:42 +00:00
Dan Gohman
30c5ce1b7d Switch the MachineOperand accessors back to the short names like 
isReg, etc., from isRegister, etc.

llvm-svn: 57006
 2008-10-03 15:45:36 +00:00
Dan Gohman
78ef9889c9 Fix X86FastISel to handle dynamic allocas that have avoided 
getting inserted into the ValueMap. This avoids infinite
recursion in some rare cases.

llvm-svn: 56989
 2008-10-03 01:27:49 +00:00
Dan Gohman
e75d14f8b0 Optimize conditional branches in X86FastISel. This replaces 
sequences like this:
       sete    %al
       testb   %al, %al
       jne     LBB11_1
with this:
       je      LBB11_1

llvm-svn: 56969
 2008-10-02 22:15:21 +00:00
Dale Johannesen
dbd7b1bd33 Handle some 64-bit atomics on x86-32, some of the time. 
llvm-svn: 56963
 2008-10-02 18:53:47 +00:00
Dan Gohman
bba3fb6d18 Work around an interaction between fast-isel and regalloc=local. The 
local register allocator's physreg liveness doesn't recognize subregs,
so it doesn't know that defs of %ecx that are immediately followed by
uses of %cl aren't dead. This comes up due to the way fast-isel emits
shift instructions.

This is a temporary workaround. Arguably, local regalloc should
handle subreg references correctly. On the other hand, perhaps
fast-isel should use INSERT_SUBREG instead of just assigning to the
most convenient super-register of %cl when lowering shifts.

This fixes MultiSource/Benchmarks/MallocBench/espresso,
MultiSource/Applications/hexxagon, and others, under -fast.

llvm-svn: 56947
 2008-10-02 14:56:12 +00:00
Bill Wendling
1c97db4090 "The original bug was a complaint that _mm_srli_si128 mis-compiled when passed 
a constant vector ("{0x123, 0x456}" syntax).  The fix is to simplify the
_mm_srli_si128 macro, and  move the "* 8" from the macro into the compiler
back-end.  I can't change the existing __builtins because so many people are
using them :-(."
Patch by Stuart Hastings!

llvm-svn: 56944
 2008-10-02 05:56:52 +00:00
Devang Patel
a5cda569d3 Remove OptimizeForSize global. Use function attribute optsize. 
llvm-svn: 56937
 2008-10-01 23:18:38 +00:00
Dan Gohman
4aacc3ab83 Split x86's ADJCALLSTACK instructions into 32-bit and 64-bit forms. 
This allows the 64-bit forms to use+def RSP instead of ESP. This
doesn't fix any real bugs today, but it is more precise and it
makes the debug dumps on x86-64 look more consistent.

Also, add some comments describing the CALL instructions' physreg
operand uses and defs.

llvm-svn: 56925
 2008-10-01 18:28:06 +00:00
Jim Grosbach
0268ee4c25 Fix typo s/ther/there/ 
llvm-svn: 56924
 2008-10-01 18:16:49 +00:00
Dan Gohman
d6e96e9888 Mark CALL instructions as having a Use of ESP/RSP. 
llvm-svn: 56911
 2008-10-01 04:14:30 +00:00
Bill Wendling
d7effcf8da Implement the -fno-builtin option in the front-end, not in the back-end. 
llvm-svn: 56900
 2008-10-01 00:59:58 +00:00
Bill Wendling
618d422cdd Just don't transform this memset into "bzero" if no-builtin is specified. 
llvm-svn: 56888
 2008-09-30 22:05:33 +00:00
Bill Wendling
9ad453e943 Add the new `-no-builtin' flag. This flag is meant to mimic the GCC 
`-fno-builtin' flag. Currently, it's used to replace "memset" with "_bzero"
instead of "__bzero" on Darwin10+. This arguably violates the meaning of this
flag, but is currently sufficient. The meaning of this flag should become more
specific over time.

llvm-svn: 56885
 2008-09-30 21:22:07 +00:00
Dan Gohman
5a2169ee6e Optimize SelectionDAG's AssignTopologicalOrder even further. 
Completely eliminate the TopOrder std::vector. Instead, sort
the AllNodes list in place. This also eliminates the need to
call AllNodes.size(), a linear-time operation, before
performing the sort.

Also, eliminate the Sources temporary std::vector, since it
essentially duplicates the sorted result as it is being
built.

This also changes the direction of the topological sort
from bottom-up to top-down. The AllNodes list starts out in
roughly top-down order, so this reduces the amount of
reordering needed. Top-down is also more convenient for
Legalize, and ISel needed only minor adjustments.

llvm-svn: 56867
 2008-09-30 18:30:35 +00:00
Dan Gohman
b5824675e4 Fix X86FastISel's output for x86-32 PIC constant pool addresses. 
llvm-svn: 56829
 2008-09-30 01:21:32 +00:00
Dan Gohman
c28f40a821 Move the GlobalBaseReg field out of X86ISelDAGToDAG.cpp 
and X86FastISel.cpp into X86MachineFunction.h, so that it
can be shared, instead of having each selector keep track
of its own.

llvm-svn: 56825
 2008-09-30 00:58:23 +00:00
Dan Gohman
e76be890c9 Disable all x87 usage, including f32 and f64 when the subtarget 
doesn't have SSE(2), with X86FastISel.

llvm-svn: 56823
 2008-09-30 00:48:39 +00:00
Dale Johannesen
52987eab6e Remove misuse of ReplaceNodeResults for atomics with 
valid types.  No functional change.

llvm-svn: 56808
 2008-09-29 22:25:26 +00:00
Dan Gohman
c6184c4473 Fix an over-pessimization about GlobalVariable addresses in X86FastISel. 
llvm-svn: 56802
 2008-09-29 21:13:15 +00:00
Evan Cheng
b749199c34 Fix PR2835. Do not change the width of a volatile load. 
llvm-svn: 56792
 2008-09-29 17:26:18 +00:00
Duncan Sands
651eeb4be2 Rename isWeakForLinker to mayBeOverridden. Use it 
instead of hasWeakLinkage in a bunch of optimization
passes.

llvm-svn: 56782
 2008-09-29 11:25:42 +00:00
Evan Cheng
28d9b3a8ad Re-apply 56683 with fixes. 
llvm-svn: 56748
 2008-09-27 01:56:22 +00:00
Daniel Dunbar
dc1d75b1b5 Unbreak build. 
llvm-svn: 56727
 2008-09-27 00:22:09 +00:00
Devang Patel
47a504c87c Implement function notes as function attributes. 
llvm-svn: 56716
 2008-09-26 23:51:19 +00:00
Evan Cheng
d63fc80c1e Implement "punpckldq %xmm0, $xmm0" as "pshufd $0x50, %xmm0, %xmm" unless optimizing for code size. 
llvm-svn: 56711
 2008-09-26 23:41:32 +00:00
Bill Wendling
7273078850 Temporarily reverting r56683. This is causing a failure during the build of llvm-gcc: 
/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -mmacosx-version-min=10.4 -O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Gir/devel/llvm/clean/llvm.obj/include -I/Volumes/Gir/devel/llvm/clean/llvm.src/include -fexceptions -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc.src/gcc/unwind-dw2-fde-darwin.c -o libgcc/./unwind-dw2-fde-darwin.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) && TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical register live information"), function runOnMachineFunction, file /Volumes/Gir/devel/llvm/clean/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp, line 311.
../../llvm-gcc.src/gcc/unwind-dw2.c:1527: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
{standard input}:3521:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
{standard input}:3521:symbol: "_dwarf_reg_size_table" can't be undefined in a subtraction expression
{standard input}:3520:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
...

llvm-svn: 56703
 2008-09-26 22:10:44 +00:00
Dan Gohman
989db64c93 Rename ConstantSDNode's getSignExtended to getSExtValue, for 
consistancy with ConstantInt, and re-implement it in terms
of ConstantInt's getSExtValue.

llvm-svn: 56700
 2008-09-26 21:54:37 +00:00
Dan Gohman
3bcb327e9c Mark lea fi# as being really rematerializable. 
llvm-svn: 56698
 2008-09-26 21:30:20 +00:00
Evan Cheng
5ce14d532c unpckhps requires sse1, punpckhdq requires sse2. 
llvm-svn: 56697
 2008-09-26 21:26:30 +00:00
Dan Gohman
401470e0c7 Fix X86FastISel's address folding to check displacement 
values for overflow.

llvm-svn: 56686
 2008-09-26 20:04:15 +00:00
Evan Cheng
9946443460 Fix @llvm.frameaddress codegen. FP elimination optimization should be disabled when frame address is desired. Also add support for depth > 0. 
llvm-svn: 56683
 2008-09-26 19:48:35 +00:00
Oscar Fuentes
94d058ba4a CMake: Builds all examples. Corrected name of CBackend target. 
llvm-svn: 56682
 2008-09-26 19:48:03 +00:00
Dale Johannesen
3f62c40108 Add "inreg" field to CallSDNode (doesn't increase 
its size).  Adjust various lowering functions to
pass this info through from CallInst.  Use it to
implement sseregparm returns on X86.  Remove
X86_ssecall calling convention.

llvm-svn: 56677
 2008-09-26 19:31:26 +00:00
Dan Gohman
56b0c33a9d Factor out the code for determining when symblic addresses 
require RIP-relative addressing and use it to fix a bug
in X86FastISel in x86-64 PIC mode, where it was trying to
use base/index registers with RIP-relative addresses. This
fixes a bunch of x86-64 testsuite failures.

llvm-svn: 56676
 2008-09-26 19:15:30 +00:00
Evan Cheng
b4d6625c85 Avoid spilling EBP / RBP twice in the prologue. 
llvm-svn: 56675
 2008-09-26 19:14:21 +00:00
Evan Cheng
0d612aad67 X86 address displacement field must be interpreted as a 32-bit value. 
llvm-svn: 56665
 2008-09-26 16:58:16 +00:00
Oscar Fuentes
65859a84d0 CMake: Builds all targets. 
llvm-svn: 56641
 2008-09-26 04:40:32 +00:00
Dan Gohman
37bd5a0d40 Disable support for x86_f80 in X86FastISel. Supporting it would 
require more work.

llvm-svn: 56637
 2008-09-26 01:39:32 +00:00
Bill Wendling
bf75299f0a If we have a function with an unreachable statement such that the ending debug 
information is in an unreachable block, then it's possible that the high/low pc
values won't be set for the dwarf information. E.g., this function:

void abort(void) __attribute__((__noreturn__));
void dead_beef(void) __attribute__ ((noreturn));

int *b;

void dead_beef(void) {
  *b=0xdeadbeef;
  abort();
}

has a call to "@llvm.dbg.region.end" only in the unreachable block:

define void @dead_beef() noreturn nounwind  {
entry:
	call void @llvm.dbg.func.start(...)
	call void @llvm.dbg.stoppoint(...)
...
	call void @abort( ) noreturn nounwind 
	unreachable

return:		; No predecessors!
	call void @llvm.dbg.stoppoint(...)
	call void @llvm.dbg.region.end(...)
	ret void
}

The dwarf information emitted is something like:

0x00000084:     TAG_subprogram [5]  
                 AT_name( "dead_beef" )
                 AT_external( 0x01 )
                 AT_prototyped( 0x01 )
                 AT_decl_file( 0x01 )
                 AT_decl_line( 0x08 )

Note that this is *not* the best fix for this problem, but a band-aid for an
gaping wound. This code needs to be changed when we revamp our debugging
information.

llvm-svn: 56628
 2008-09-26 00:28:12 +00:00
Evan Cheng
c8674dcfd0 Prefer movlhps over punpcklqdq, etc. in more cases. 
llvm-svn: 56627
 2008-09-25 23:35:16 +00:00
Dan Gohman
524c506db3 Fix a bug in which address displacements were being added to the 
load from the stub, instead of the result of the load from the stub.

llvm-svn: 56626
 2008-09-25 23:34:02 +00:00
Devang Patel
64dd7a2e89 Large mechanical patch. 
s/ParamAttr/Attribute/g
s/PAList/AttrList/g
s/FnAttributeWithIndex/AttributeWithIndex/g
s/FnAttr/Attribute/g

This sets the stage 
- to implement function notes as function attributes and 
- to distinguish between function attributes and return value attributes.

This requires corresponding changes in llvm-gcc and clang.

llvm-svn: 56622
 2008-09-25 21:00:45 +00:00
Anton Korobeynikov
7367de00cf Reapply 56585:56589 with proper fix for some gcc versions 
llvm-svn: 56621
 2008-09-25 21:00:33 +00:00
Evan Cheng
d190aeb62d With sse3 and when the source is a load or has multiple uses, favors movddup over shuffp*, pshufd, etc. Without sse3 or when the source is from a register, make use of movlhps 
llvm-svn: 56620
 2008-09-25 20:50:48 +00:00
Dale Johannesen
62f64ab4c8 Accept 'inreg' attribute on x86 functions as 
meaning sse_regparm (i.e. float/double values go
in XMM0 instead of ST0).  Update documentation
to reflect reality.

llvm-svn: 56619
 2008-09-25 20:47:45 +00:00
Dan Gohman
6f5c6be90f PIC support in X86FastISel. 
llvm-svn: 56608
 2008-09-25 15:24:26 +00:00
Evan Cheng
12a67b5226 Temporarily backing out 56585:56589 to unbreak the build. 
llvm-svn: 56607
 2008-09-25 07:38:08 +00:00
Evan Cheng
d8a6a7beaa pmovsxbq etc. requires sse4.1. 
llvm-svn: 56600
 2008-09-25 00:49:51 +00:00
Evan Cheng
efd1f614ff Fix patterns for SSE4.1 move and sign extend instructions. Also add instructions which fold VZEXT_MOVL and VZEXT_LOAD. 
llvm-svn: 56594
 2008-09-24 23:27:55 +00:00
Evan Cheng
1d0ed88bf9 X86ISD::VZEXT_LOAD should produce and fold a chain. 
llvm-svn: 56593
 2008-09-24 23:26:36 +00:00
Anton Korobeynikov
ff74ae04b1 Minor cleanup 
llvm-svn: 56588
 2008-09-24 22:22:54 +00:00
Anton Korobeynikov
1c1eeb6b7b Get rid of virtual inheritance for ARM TAI 
llvm-svn: 56587
 2008-09-24 22:22:27 +00:00
Anton Korobeynikov
3f07365446 Get rid of virtual inheritance for PPC TAI 
llvm-svn: 56586
 2008-09-24 22:22:03 +00:00
Anton Korobeynikov
9e5cbcc134 Use crazy template-based inheritance instead of virtual one. 
llvm-svn: 56585
 2008-09-24 22:21:39 +00:00
Anton Korobeynikov
b9294473f0 Get rid of ReadOnlySection duplicate 
llvm-svn: 56582
 2008-09-24 22:20:27 +00:00
Anton Korobeynikov
abf1e5277b Use named sections, where they should be 
llvm-svn: 56581
 2008-09-24 22:19:13 +00:00
Anton Korobeynikov
9b9c3a38ad Get rid of now unused {Four,Eight,Sixteen}ByteConstantSection 
llvm-svn: 56580
 2008-09-24 22:18:54 +00:00
Anton Korobeynikov
154a35a723 Cleanup 
llvm-svn: 56578
 2008-09-24 22:17:27 +00:00
Anton Korobeynikov
1b3c67c5cf Get rid of duplicate char*/Section* stuff for TLS sections 
llvm-svn: 56577
 2008-09-24 22:17:06 +00:00
Anton Korobeynikov
021a7eed86 Cleanup, no functionality change 
llvm-svn: 56576
 2008-09-24 22:16:33 +00:00
Anton Korobeynikov
dca16f3acf Get rid of duplicate char*/Section* DataSection 
llvm-svn: 56575
 2008-09-24 22:16:16 +00:00
Anton Korobeynikov
83fa257f55 Get rid of duplicate char*/Section* TextSection 
llvm-svn: 56574
 2008-09-24 22:15:21 +00:00
Anton Korobeynikov
c7ac49c632 Move actual section printing stuff to AsmPrinter from TAI reducing heap traffic. 
llvm-svn: 56573
 2008-09-24 22:14:23 +00:00
Anton Korobeynikov
9e5d24042c Drop obsolete hook and change all usage to new interface 
llvm-svn: 56572
 2008-09-24 22:13:07 +00:00
Anton Korobeynikov
5c9283696b SPU section handling is really huge mess. Replace remaining TAI calls for sections with explicit names in order not to block existing backends during section handling migration. SPU folks! Please consider using new section handling facility someday. 
llvm-svn: 56570
 2008-09-24 22:11:42 +00:00
Anton Korobeynikov
a76d9f547f Remove dead code for PIC16 (preparation to switch to new section handling stuff) 
llvm-svn: 56569
 2008-09-24 22:11:26 +00:00
Anton Korobeynikov
24b906c8a3 XMM6-XMM15 are callee-saved on Win64. Patch by Nicolas Capens! 
llvm-svn: 56568
 2008-09-24 22:03:04 +00:00
Devang Patel
f0bda74eca s/ParamAttrsWithIndex/FnAttributeWithIndex/g 
llvm-svn: 56535
 2008-09-24 00:55:02 +00:00
Devang Patel
25ecdc49d9 Put FN_NOTE_AlwaysInline and others in FnAttr namespace. 
llvm-svn: 56527
 2008-09-24 00:06:15 +00:00
Evan Cheng
f942615847 Properly handle 'm' inline asm constraints. If a GV is being selected for the addressing mode, it requires the same logic for PIC relative addressing, etc. 
llvm-svn: 56526
 2008-09-24 00:05:32 +00:00
Devang Patel
b39defd763 Move FN_NOTE_AlwaysInline and other out of ParamAttrs namespace. 
Do not check isDeclaration() in hasNote(). It is clients' responsibility.

llvm-svn: 56524
 2008-09-23 23:52:03 +00:00
Devang Patel
a3e9bf1bca s/ParameterAttributes/Attributes/g 
llvm-svn: 56513
 2008-09-23 23:03:40 +00:00
Devang Patel
ad8ca34acd Use parameter attribute store (soon to be renamed) for 
Function Notes also. Function notes are stored at index ~0.

llvm-svn: 56511
 2008-09-23 22:35:17 +00:00
Dan Gohman
01a070f9c7 Arrange for FastISel code to have access to the MachineModuleInfo 
object. This will be needed to support debug info.

llvm-svn: 56508
 2008-09-23 21:53:34 +00:00
Dan Gohman
a712c8d29e Fix these enums' starting values to reflect the way that 
instruction opcodes are now numbered. No functionality change.

llvm-svn: 56497
 2008-09-23 18:42:32 +00:00
Dan Gohman
e21054687a Delete an unused function. 
llvm-svn: 56495
 2008-09-23 18:26:47 +00:00
Dan Gohman
6bed18a334 Move the code for initializing the global base reg out of 
X86ISelDAGToDAG.cpp and into X86InstrInfo.cpp. This will allow
it to be reused by FastISel.

llvm-svn: 56494
 2008-09-23 18:22:58 +00:00
Matthijs Kooijman
5782b4b1b0 Fix indendation. 
llvm-svn: 56486
 2008-09-23 08:54:41 +00:00
Evan Cheng
5bf702d20a Support x86 specific inline asm modifier 'J'. 
llvm-svn: 56483
 2008-09-22 23:57:37 +00:00
Devang Patel
c7fc5ed65f Add hasNote() to check note associated with a function. 
llvm-svn: 56477
 2008-09-22 22:32:29 +00:00
Evan Cheng
1ded8b6ad6 Instead of setPreservesAll, just mark them preseving machine loop info and machine dominators. 
llvm-svn: 56475
 2008-09-22 22:21:38 +00:00
Dale Johannesen
3722f4c14c Make log, log2, log10, exp, exp2 use Expand by 
default.

llvm-svn: 56471
 2008-09-22 21:57:32 +00:00
Evan Cheng
3bcf0cdd72 Mark several codegen passes as preserving all analysis. 
llvm-svn: 56469
 2008-09-22 20:58:04 +00:00
Oscar Fuentes
e51d9c0c3a CMake build system: support for parallel builds. 
llvm-svn: 56453
 2008-09-22 18:21:51 +00:00
Arnold Schwaighofer
49f49e2086 Change the calling convention used when tail call optimization is enabled from CC_X86_32_TailCall to CC_X86_32_FastCC. 
llvm-svn: 56436
 2008-09-22 14:50:07 +00:00
Oscar Fuentes
0f25988689 Initial support for the CMake build system. 
llvm-svn: 56419
 2008-09-22 01:08:49 +00:00
Chris Lattner
6e5b4c609c Fold immediates into X86 shifts with fast isel. This generates: 
sarl    $3, %ecx

instead of:

movl    $3, %ecx
sarl    %cl, %edx

This shrinks fast isel 176.gcc by about 2000 instructions (.3%)

llvm-svn: 56413
 2008-09-21 21:44:29 +00:00
Dan Gohman
c8477ceabe Instead of building a list and sorting it just to find a maximum element, 
compute the maximum element directly.

llvm-svn: 56411
 2008-09-21 21:01:49 +00:00
Chris Lattner
c018045520 add a note 
llvm-svn: 56391
 2008-09-20 19:17:53 +00:00
Evan Cheng
6a86ec1ef0 No need to print function stubs for Mac OS X 10.5 and up. Linker will handle it. 
llvm-svn: 56378
 2008-09-20 00:13:45 +00:00
Evan Cheng
7bcd8409b7 80 column violation. 
llvm-svn: 56377
 2008-09-20 00:13:08 +00:00
Dan Gohman
af1eeb6421 Fix a FastISel GlobalVariable CSE bug. 
llvm-svn: 56376
 2008-09-19 23:42:04 +00:00
Dan Gohman
f66b3277d3 Refactor X86SelectConstAddr, folding it into X86SelectAddress. This 
results in better code for globals. Also, unbreak the local CSE for
GlobalValue stub loads.

llvm-svn: 56371
 2008-09-19 22:16:54 +00:00
Dan Gohman
71b1f15917 Address-mode folding for X86FastISel. It's pretty basic, but it 
catches a fair number of common cases. Note that this currently
causes Fast-ISel to leave behind lots of dead instructions.
Those will be dealt with in subsequent commits.

llvm-svn: 56320
 2008-09-18 23:23:44 +00:00
Dan Gohman
e1c4ad399a Simplify this code. The FastISel class has its own TD member. 
llvm-svn: 56311
 2008-09-18 18:26:43 +00:00
Evan Cheng
6acdef5d11 Duh. Default to ARMCC::AL (always). 
llvm-svn: 56301
 2008-09-18 07:28:19 +00:00
Evan Cheng
99a186e39f Clean up. 
llvm-svn: 56300
 2008-09-18 07:27:23 +00:00
Evan Cheng
b44e839f76 Cosmetic. 
llvm-svn: 56299
 2008-09-18 07:24:33 +00:00
Dan Gohman
5fbd0e95f3 FastISel: For calls, prefer using the callee's address as a constant 
over having it in a register. And wait until after checking type
legality before requesting that the callee address be placed in a
register. Also, fix support for calls with void return type.

This speeds up fast-isel isel time by about 15% and reduces
instruction counts by about 3% overall on certain testcases. It also
changes many indirect calls to direct calls.

llvm-svn: 56292
 2008-09-17 21:18:49 +00:00
Evan Cheng
f2c04a10e6 Fix addrmode1 instruction encodings; fix bx_ret encoding. 
llvm-svn: 56277
 2008-09-17 07:53:38 +00:00
Evan Cheng
d268288d39 Specify instruction encoding using range list to avoid endianess issues. 
llvm-svn: 56276
 2008-09-17 07:16:21 +00:00
Dan Gohman
9475c22537 Simplify and generalize X86DAGToDAGISel::CanBeFoldedBy, and draw 
up some new ascii art to illustrate what it does. This change
currently has no effect on generated code.

llvm-svn: 56270
 2008-09-17 01:39:10 +00:00
Bill Wendling
b2701e541c Add trampoline support to PPC. GCC simply calls the "__trampoline_setup" 
function with appropriate parameters. This allows us to support blocks on PPC.

llvm-svn: 56267
 2008-09-17 00:30:57 +00:00
Bill Wendling
932818c75a Reverting r56249. On further investigation, this functionality isn't needed. 
Apologies for the thrashing.

llvm-svn: 56251
 2008-09-16 21:48:12 +00:00
Bill Wendling
1a240c8033 - Change "ExternalSymbolSDNode" to "SymbolSDNode". 
- Add linkage to SymbolSDNode (default to external).
- Change ISD::ExternalSymbol to ISD::Symbol.
- Change ISD::TargetExternalSymbol to ISD::TargetSymbol

These changes pave the way to allowing SymbolSDNodes with non-external linkage.

llvm-svn: 56249
 2008-09-16 21:12:30 +00:00
Bruno Cardoso Lopes
f6ad396dfa Fixed Bug 2751 
http://llvm.org/bugs/show_bug.cgi?id=2751

Abicall was enabled even when static code model was provided 
in the command line.
The correct behavior is to disable abicall when static is
specified.

llvm-svn: 56228
 2008-09-15 21:06:55 +00:00
Dan Gohman
fa32c7c6d9 Remove isImm(), isReg(), and friends, in favor of 
isImmediate(), isRegister(), and friends, to avoid confusion
about having two different names with the same meaning. I'm
not attached to the longer names, and would be ok with
changing to the shorter names if others prefer it.

llvm-svn: 56189
 2008-09-13 17:58:21 +00:00
Evan Cheng
63b98ccd5e Fix random abort. 
llvm-svn: 56184
 2008-09-13 01:55:59 +00:00
Dan Gohman
3450a8252f Define CallSDNode, an SDNode subclass for use with ISD::CALL. 
Currently it just holds the calling convention and flags
for isVarArgs and isTailCall.

And it has several utility methods, which eliminate magic
5+2*i and similar index computations in several places.

CallSDNodes are not CSE'd. Teach UpdateNodeOperands to handle
nodes that are not CSE'd gracefully.

llvm-svn: 56183
 2008-09-13 01:54:27 +00:00
Evan Cheng
775a37e4b4 Typo. 
llvm-svn: 56182
 2008-09-13 01:44:01 +00:00
Evan Cheng
200cdea934 Rely on instruction format to determine so_reg operand for now. 
llvm-svn: 56181
 2008-09-13 01:38:29 +00:00
Evan Cheng
0a3a595612 Revert 56176. All those instruction formats are still needed. 
llvm-svn: 56180
 2008-09-13 01:35:33 +00:00
Evan Cheng
1ac0a5f278 Accidentially flipped the condition. 
llvm-svn: 56179
 2008-09-13 01:29:57 +00:00
Evan Cheng
d68f2947a9 Add debug dumps. 
llvm-svn: 56178
 2008-09-13 01:15:21 +00:00
Evan Cheng
18fd8337b3 Eliminate unnecessary instruction formats. 
llvm-svn: 56176
 2008-09-12 23:15:39 +00:00
Evan Cheng
66e7651a16 Addrmode 1 S bit can be dynamically set. Look for CPSR def. 
llvm-svn: 56172
 2008-09-12 22:45:55 +00:00
Evan Cheng
adf6720626 Rewrite address mode 1 code emission routines. 
llvm-svn: 56171
 2008-09-12 22:01:15 +00:00
Dan Gohman
89660301e3 Rename ConstantSDNode::getValue to getZExtValue, for consistency 
with ConstantInt. This led to fixing a bug in TargetLowering.cpp
using getValue instead of getAPIntValue.

llvm-svn: 56159
 2008-09-12 16:56:44 +00:00
Jim Grosbach
a25a322741 udpate header comment: s/VP/VFP/ 
llvm-svn: 56126
 2008-09-11 21:41:29 +00:00
Arnold Schwaighofer
adfb111f10 When tailcallopt is enabled all fastcc calls must have an aligned argument stack size. Add a test case. 
llvm-svn: 56119
 2008-09-11 20:28:43 +00:00
Owen Anderson
743d45821a Fix a bug in ANY_EXTEND handling that was breaking 403.gcc on X86-64 in fast isel. 
llvm-svn: 56117
 2008-09-11 19:44:55 +00:00
Dale Johannesen
10e1cf3df2 The version of AtomicSDNode::AtomicSDNode used (only) for 
cmp-and-swap reversed the Cmp and Swap arguments; comments
make it clear this is unintentional.  Unfortunately, the
x86 BE had a compensating reversal, which is removed here.
PPC is OK.

From inspection of the Alpha code I think it is OK, but
if somebody has that platform please check it out.  I
cannot test on that platform.

llvm-svn: 56091
 2008-09-11 03:12:59 +00:00
Owen Anderson
139baa5f74 If ISD::ANY_EXTEND fails, try ISD::ZERO_EXTEND and ISD::SIGN_EXTEND before giving up. This fixes 445.gobmk on 
X86-64 in fast isel.

llvm-svn: 56088
 2008-09-11 02:41:37 +00:00
Dale Johannesen
8ac17c1f77 Succumb utterly to compatibility and implement 
__sync_fetch_and_nand as ANDC, even though that's
not what nand means.

llvm-svn: 56087
 2008-09-11 02:15:03 +00:00
Dan Gohman
9eca554828 X86FastISel support for double->float and float->double casts. 
llvm-svn: 56070
 2008-09-10 21:02:08 +00:00
Dan Gohman
3ccdde5eef Add X86FastISel support for static allocas, and refences 
to static allocas. As part of this change, refactor the
address mode code for laods and stores.

llvm-svn: 56066
 2008-09-10 20:11:02 +00:00
Evan Cheng
83c694fbe7 Fix a fastcc + sret bug. If fastcc and sret, callee doesn't need to pop the hidden struct ptr; Re-enable fastcc. 
llvm-svn: 56061
 2008-09-10 18:25:29 +00:00
Dale Johannesen
3e4bbf01d0 Handle new intrinsics with vector arguments. 
Patch by Paul Redmond.

llvm-svn: 56059
 2008-09-10 17:31:40 +00:00
Duncan Sands
6e9362aeaa Fix name. 
llvm-svn: 56055
 2008-09-10 13:22:10 +00:00
Duncan Sands
c3de6e13df Add trampoline support for the new FastCC calling 
convention (not related to recent Ada testsuite
failures).

llvm-svn: 56054
 2008-09-10 13:11:09 +00:00
Duncan Sands
63ef24bfb1 Turn off the new FastCC for the moment. It causes 
a slew of Ada testsuite failures on x86-32 linux.
Seems to be related to the use of float.

llvm-svn: 56053
 2008-09-10 13:09:24 +00:00
Dale Johannesen
ba2bbe0c55 Move the uglier parts of deciding not to emit a 
UsedDirective for some symbols in llvm.used into
Darwin-specific code.  I've decided LessPrivateGlobal
is potentially a useful abstraction and left it in
the target-independent area, with improved comment.

llvm-svn: 56024
 2008-09-09 22:29:13 +00:00
Anton Korobeynikov
6ad8b060d0 Make safer variant of alias resolution routine to be default 
llvm-svn: 56005
 2008-09-09 20:05:04 +00:00
Dan Gohman
88053b82e5 Mark IMPLICIT_DEF as being rematerializable and cheap-as-a-move. 
It's already special-cased and treated as rematerializable within
LiveIntervals; this allows it to be handled by other passes
such as TwoAddressInstrctionPass.

llvm-svn: 55999
 2008-09-09 18:25:28 +00:00
Anton Korobeynikov
59a67c60db Replace explicit pointer-size constants to TargetData query. 
No functionality change.

llvm-svn: 55996
 2008-09-09 18:22:57 +00:00
Evan Cheng
dc011a1b10 Fix a constant lowering bug. Now we can do load and store instructions with funky getelementptr embedded in the address operand. 
llvm-svn: 55975
 2008-09-09 01:26:59 +00:00
Dale Johannesen
1ed08a58d1 Fix logic for not emitting no-dead-strip for some 
objects in llvm.used (thanks Anton).  Makes visible
the magic 'l' prefix for symbols on Darwin which are
to be passed through the assembler, then removed at
linktime (previously all references to this had been
hidden in the ObjC FE code, oh well).

llvm-svn: 55973
 2008-09-09 01:21:22 +00:00
Anton Korobeynikov
1d726f1597 Reapply 55901: Drop unused variable 
llvm-svn: 55957
 2008-09-08 21:13:33 +00:00
Anton Korobeynikov
9d896f5566 Reapply 55900: We do support EH on x86-64! 
llvm-svn: 55956
 2008-09-08 21:13:08 +00:00
Anton Korobeynikov
33c69aaf24 Reapply 55899: First draft of EH support on x86/64-linux 
Now with fix, which prevents subtle codegen bug to trigger on darwin.
No fix for bug though, it's still there.

llvm-svn: 55955
 2008-09-08 21:12:47 +00:00