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b34e6b4898
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19915 Commits

Author SHA1 Message Date
Dale Johannesen
b34e6b4898 Add mod, copysign, abs operations to APFloat. 
Implement some constant folding in SelectionDAG and
DAGCombiner using APFloat.  Remove double versions
of constructor and getValue from ConstantFPSDNode.

llvm-svn: 41664
 2007-08-31 23:34:27 +00:00
Evan Cheng
e0f2c65756 std::map -> DenseMap for slight compile time benefit. 
llvm-svn: 41650
 2007-08-31 21:23:06 +00:00
Dale Johannesen
a79f7d4068 Revise per review of previous patch. 
llvm-svn: 41645
 2007-08-31 17:03:33 +00:00
Rafael Espindola
4ddaad4de0 Initial support for calling functions with byval arguments on x86-64 
llvm-svn: 41643
 2007-08-31 15:06:30 +00:00
Rafael Espindola
aa7930b4f0 Align i64 and f64 at 8 byte on x86-64. 
This is mandated table 3.1 at
http://www.x86-64.org/documentation/abi.pdf

llvm-svn: 41642
 2007-08-31 12:23:58 +00:00
Evan Cheng
3157d0991b Remove an unnecessary element, saving 4 bytes per LiveInterval. 
llvm-svn: 41641
 2007-08-31 08:26:44 +00:00
Evan Cheng
a561a94058 Use std::map instead of a (potentially very sparse) array to track val# defined by copy from the other live range. Minor compile time win when number of val# is large. 
llvm-svn: 41640
 2007-08-31 08:04:17 +00:00
Dale Johannesen
81d6ecb886 Enhance APFloat to retain bits of NaNs (fixes oggenc). 
Use APFloat interfaces for more references, mostly
of ConstantFPSDNode.

llvm-svn: 41632
 2007-08-31 04:03:46 +00:00
Raul Herbster
ffa8296e3f Instruction formats added used to generate multiply instructions of V5TE. 
llvm-svn: 41629
 2007-08-30 23:34:14 +00:00
Raul Herbster
7f1a7dc4e2 Unused relocation type reloc_arm_absolute removed. 
llvm-svn: 41628
 2007-08-30 23:31:35 +00:00
Raul Herbster
db2f42989b Comments added. It now generates V5TE multiply instructions. However, it is still necessary to model PUWLSH bits more clearly. 
llvm-svn: 41627
 2007-08-30 23:29:26 +00:00
Raul Herbster
49b44eae34 ARM instruction table was modified by adding information to generate multiply instruction of V5TE. 
llvm-svn: 41626
 2007-08-30 23:25:47 +00:00
Raul Herbster
26e15aed5c JITInfo now resolves function addrs and also relocations. It always emits a stub. 
llvm-svn: 41625
 2007-08-30 23:21:27 +00:00
Evan Cheng
cb317912b2 Added support to fold X86 load / store instructions. This allow rematerialized loads to be folded into their uses. 
llvm-svn: 41599
 2007-08-30 05:54:07 +00:00
Evan Cheng
e8c80ad7cd Try fold re-materialized load instructions into its uses. 
llvm-svn: 41598
 2007-08-30 05:53:02 +00:00
Evan Cheng
58ea935f6f Add a variant of foldMemoryOperand to fold any load / store, not just load / store from / to stack slots. 
llvm-svn: 41597
 2007-08-30 05:52:20 +00:00
Evan Cheng
527fe7ab57 Mark load instructions with isLoad = 1. 
llvm-svn: 41595
 2007-08-30 05:49:43 +00:00
Bill Wendling
c65cf7849d Use i64 on a PPC64 machine 
llvm-svn: 41590
 2007-08-30 00:59:19 +00:00
Dale Johannesen
e91a908971 Change LegalFPImmediates to use APFloat. 
Add APFloat interfaces to ConstantFP, SelectionDAG.
Fix integer bit in double->APFloat conversion.
Convert LegalizeDAG to use APFloat interface in
ConstantFPSDNode uses.

llvm-svn: 41587
 2007-08-30 00:23:21 +00:00
Anton Korobeynikov
5845c41e4d Fix use of declaration inside case block 
llvm-svn: 41584
 2007-08-29 23:18:48 +00:00
Evan Cheng
5a5046b83f Change LiveRange so it keeps a pointer to the VNInfo rather than an index. 
Changes related modules so VNInfo's are not copied. This decrease
copy coalescing time by 45% and overall compilation time by 10% on siod.

llvm-svn: 41579
 2007-08-29 20:45:00 +00:00
Anton Korobeynikov
a3531f71ca Lower FRAME_TO_ADDR_OFFSET to zero by default (if not custom lowered) 
llvm-svn: 41578
 2007-08-29 19:28:29 +00:00
Duncan Sands
26ef2a1767 Move getX86RegNum into X86RegisterInfo and use it 
in the trampoline lowering.  Lookup the jump and
mov opcodes for the trampoline rather than hard
coding them.

llvm-svn: 41577
 2007-08-29 19:01:20 +00:00
Chris Lattner
c3b406a619 update these 
llvm-svn: 41565
 2007-08-29 16:15:23 +00:00
Dan Gohman
cbb2ee9062 Add an option, -view-sunit-dags, for viewing the actual SUnit DAGs used by 
scheduling.

llvm-svn: 41556
 2007-08-28 20:32:58 +00:00
Evan Cheng
1f3724ee2d Recover most of the compile time regression due to recent live interval changes. 
1. Eliminate the costly live interval "swapping".
2. Change ValueNumberInfo container from SmallVector to std::vector. The former
   performs slowly when the vector size is very large.

llvm-svn: 41536
 2007-08-28 08:28:51 +00:00
Bruno Cardoso Lopes
ff764398e6 Added method to get Mips register numbers 
Changed the stack frame layout, StackGrowsUp fits better to Mips strange stack.
Stack offset calculation bug fixed!

llvm-svn: 41529
 2007-08-28 05:13:42 +00:00
Bruno Cardoso Lopes
144486ca7e Changed stack allocation On LowerFORMAL_ARGUMENTS. 
Added comments about new stack allocation.
Expand SelectCC for i32 results

llvm-svn: 41527
 2007-08-28 05:08:16 +00:00
Bruno Cardoso Lopes
96894b2c93 Mask directive completed with CalleeSave info 
Comments for Mips directives added.

llvm-svn: 41526
 2007-08-28 05:06:17 +00:00
Bruno Cardoso Lopes
b77d5cd9d5 Added methods to record SPOffsets from LowerFORMAL_ARGUMENTS 
llvm-svn: 41525
 2007-08-28 05:04:41 +00:00
Chris Lattner
73aa3d62dc Cut off crazy computation. This helps PR1622 slightly. 
llvm-svn: 41522
 2007-08-28 04:23:55 +00:00
Devang Patel
c649f24384 Use simpler test to filter loops. 
llvm-svn: 41516
 2007-08-27 21:34:31 +00:00
David Greene
5b85021be8 Update InvokeInst to work like CallInst 
llvm-svn: 41506
 2007-08-27 19:04:21 +00:00
Rafael Espindola
dc5450f7fb Add a comment about using libc memset/memcpy or generating inline code. 
llvm-svn: 41502
 2007-08-27 17:48:26 +00:00
Dan Gohman
123b8effaa Make DAGCombiner's global alias analysis query more precise in the case 
where both pointers have non-zero offsets.

llvm-svn: 41491
 2007-08-27 16:32:11 +00:00
Dan Gohman
2e7e251f24 If the source and destination pointers in an llvm.memmove are known 
to not alias each other, it can be translated as an llvm.memcpy.

llvm-svn: 41489
 2007-08-27 16:26:13 +00:00
Dan Gohman
0b3fc43d5e Change comments to refer to @malloc and @free instead of %malloc and %free. 
llvm-svn: 41488
 2007-08-27 16:11:48 +00:00
Duncan Sands
883740b39f There is an impedance matching problem between LLVM and 
gcc exception handling: if an exception unwinds through
an invoke, then execution must branch to the invoke's
unwind target.  We previously tried to enforce this by
appending a cleanup action to every selector, however
this does not always work correctly due to an optimization
in the C++ unwinding runtime: if only cleanups would be
run while unwinding an exception, then the program just
terminates without actually executing the cleanups, as
invoke semantics would require.  I was hoping this
wouldn't be a problem, but in fact it turns out to be the
cause of all the remaining failures in the LLVM testsuite
(these also fail with -enable-correct-eh-support, so turning
on -enable-eh didn't make things worse!).  Instead we need
to append a full-blown catch-all to the end of each
selector.  The correct way of doing this depends on the
personality function, i.e. it is language dependent, so
can only be done by gcc.  Thus this patch which generalizes
the eh.selector intrinsic so that it can handle all possible
kinds of action table entries (before it didn't accomodate
cleanups): now 0 indicates a cleanup, and filters have to be
specified using the number of type infos plus one rather than
the number of type infos.  Related gcc patches will cause
Ada to pass a cleanup (0) to force the selector to always
fire, while C++ will use a C++ catch-all (null).

llvm-svn: 41484
 2007-08-27 15:47:50 +00:00
Dan Gohman
e2c92effea Add explicit keywords and remove spurious trailing semicolons. 
llvm-svn: 41482
 2007-08-27 14:50:10 +00:00
Rafael Espindola
3d52fe3ef3 call libc memcpy/memset if array size is bigger then threshold. 
Coping 100MB array (after a warmup) shows that glibc 2.6.1 implementation on
x86-64 (core 2) is 30% faster (from 0.270917s to 0.188079s)

llvm-svn: 41479
 2007-08-27 10:18:20 +00:00
Anton Korobeynikov
3dffac0c59 Don't promote volatile loads/stores. This is needed (for example) to handle setjmp/longjmp properly. 
This fixes PR1520.

llvm-svn: 41461
 2007-08-26 21:43:30 +00:00
Owen Anderson
f660f11ec4 Don't DSe volatile stores. 
llvm-svn: 41456
 2007-08-26 21:14:47 +00:00
Dale Johannesen
2ceade197b Revise per review comments. 
llvm-svn: 41409
 2007-08-26 01:18:27 +00:00
Dale Johannesen
b52093236e Add APFloat interface to ConstantFPSDNode. Change 
over uses in DAGCombiner.  Fix interfaces to work
with APFloats.

llvm-svn: 41407
 2007-08-25 22:10:57 +00:00
Devang Patel
cbfa564c1c Move exit condition and exit branch from exiting block into loop header and dominator info. This avoid execution of dead iteration. Loop is already filter in the beginning such that this change is safe. 
llvm-svn: 41394
 2007-08-25 02:39:24 +00:00
Devang Patel
d961a55c5a Constant split values needs upper bound and lower bound check, just like any other split value. 
llvm-svn: 41389
 2007-08-25 01:09:14 +00:00
Chris Lattner
093144e147 Allow target constants to be illegal types. The target should 
know how to handle them.  This fixes 
test/CodeGen/Generic/asm-large-immediate.ll

llvm-svn: 41388
 2007-08-25 01:00:22 +00:00
Devang Patel
027410a7aa While calculating upper loop bound for first loop and lower loop bound for second loop, take care of edge cases. 
llvm-svn: 41387
 2007-08-25 00:56:38 +00:00
Chris Lattner
666f15ac0a Teach the dag scheduler to handle inline asm nodes with multi-value immediate operands. 
llvm-svn: 41386
 2007-08-25 00:53:07 +00:00
Bill Wendling
da2e7749bb The personality function might need to be declared as: 
.set  Lset0,___gxx_personality_v0-.
    .long Lset0

on some targets. Make it so!

llvm-svn: 41385
 2007-08-25 00:51:55 +00:00