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Author SHA1 Message Date
Dan Gohman
c6e88b9bc2 Add explicit triples to avoid default behavior that varies by host. 
llvm-svn: 41510
 2007-08-27 20:54:48 +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
Duncan Sands
454200b3bf Remove this test as it is too hard to fix after the 
latest EH changes, and in any case it is hard to
imagine how the original bug could be reintroduced.

llvm-svn: 41497
 2007-08-27 17:08:14 +00:00
Duncan Sands
a0c8b8e201 Fix this test: llvm-gcc-4.2 optimizes almost everything away, 
resulting in zero matches, while llvm-gcc-4.1 manages to
remove one pointless selector changing the number of matches.

llvm-svn: 41494
 2007-08-27 16:47:32 +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
Duncan Sands
50af87bf0b Now that we don't output cleanups by default, the action 
offset needs to be adjusted in this test.

llvm-svn: 41490
 2007-08-27 16:30:05 +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
Chris Lattner
1e089aac3a rename isOperandValidForConstraint to LowerAsmOperandForConstraint, 
changing the interface to allow for future changes.

llvm-svn: 41384
 2007-08-25 00:47:38 +00:00
Dale Johannesen
ab02edb700 Comment out declaration of operator== (undefined). 
llvm-svn: 41383
 2007-08-25 00:40:41 +00:00
Neil Booth
557160fbef Test 
llvm-svn: 41382
 2007-08-25 00:36:22 +00:00
Neil Booth
16abc47676 Add self 
llvm-svn: 41381
 2007-08-25 00:31:24 +00:00
Tanya Lattner
fdf3a750f7 Rename llvm-gcc4 to llvm-gcc. 
llvm-svn: 41380
 2007-08-24 23:23:23 +00:00
Dale Johannesen
9ec1e28e79 Poison APFloat::operator==. Replace existing uses with bitwiseIsEqual. 
This means backing out the preceding change to Constants.cpp, alas.

llvm-svn: 41378
 2007-08-24 22:09:56 +00:00
Dale Johannesen
5c0b0ec1d6 Use APFloat internally for ConstantFPSDNode. 
llvm-svn: 41372
 2007-08-24 20:59:15 +00:00
Chris Lattner
af91aa2f5e sink clone() down the class hierarchy from CmpInst into ICmpInst/FCmpInst. 
This eliminates a conditional on that path, and ensures ICmpInst/FCmpInst
both have an out-of-line virtual method to home the class.

llvm-svn: 41371
 2007-08-24 20:48:18 +00:00
Devang Patel
c46dc61548 Fix regression that I caused yesterday night while adding logic to select appropriate split condition branch. 
llvm-svn: 41365
 2007-08-24 19:32:26 +00:00
Chris Lattner
d361c3e1ce Disable EH generation until PPC works 100%. 
llvm-svn: 41360
 2007-08-24 16:00:15 +00:00
Chris Lattner
4c84c39666 add a note 
llvm-svn: 41359
 2007-08-24 15:17:59 +00:00
Devang Patel
0b351a64db It is not safe to execute split condition's true branch first all the time. If split 
condition predicate is GT or GE then execute false branch first.

llvm-svn: 41358
 2007-08-24 06:17:19 +00:00
Devang Patel
59af13f0cf Reject ICMP_NE as index split condition. 
llvm-svn: 41357
 2007-08-24 06:02:25 +00:00
Devang Patel
4b52632179 Tightenup loop filter. 
llvm-svn: 41356
 2007-08-24 05:36:56 +00:00
Devang Patel
8b1d0a1ad2 Remove incomplete cost analysis. 
llvm-svn: 41354
 2007-08-24 05:21:13 +00:00
Dale Johannesen
0aaabb858b Revised per review feedback from previous patch. 
llvm-svn: 41353
 2007-08-24 05:08:11 +00:00
Chris Lattner
91df26be0f silence some warnings in an optimized build. 
llvm-svn: 41352
 2007-08-24 03:02:34 +00:00
Dale Johannesen
a3ab055b9d Change internal representation of ConstantFP to use APFloat. 
Interface to rest of the compiler unchanged, as yet.

llvm-svn: 41348
 2007-08-24 00:56:33 +00:00
Duncan Sands
30440c6c4e Fix this testcase: there are two matches for 
llvm.cttz.i64 because of the declaration of
the intrinsic.  Also, emit-llvm is automatic
and doesn't need to be specified.

llvm-svn: 41326
 2007-08-23 17:22:50 +00:00
Chris Lattner
9b22d7527c add some notes on really poor codegen. 
llvm-svn: 41319
 2007-08-23 15:22:07 +00:00
Chris Lattner
0c048bb115 new example 
llvm-svn: 41318
 2007-08-23 15:16:03 +00:00
Anton Korobeynikov
9451c871c5 Perform correct codegen for eh_dwarf_cfa intrinsic. 
llvm-svn: 41316
 2007-08-23 07:21:06 +00:00
Chris Lattner
346bc59e4f default this to radix 10 like the toString(Un)Signed methods. 
llvm-svn: 41311
 2007-08-23 05:21:48 +00:00
Chris Lattner
66d4ebe00f Avoid hiding issues. 
llvm-svn: 41310
 2007-08-23 05:20:48 +00:00
Chris Lattner
742b745b0c rename APInt::toString -> toStringUnsigned for symmetry with toStringSigned() 
Add an APSInt::toString() method.

llvm-svn: 41309
 2007-08-23 05:15:32 +00:00
Duncan Sands
b31856afd4 Implement review feedback on trampoline documentation. 
llvm-svn: 41304
 2007-08-22 23:39:54 +00:00
Devang Patel
4ad7c57729 Remove dead code. 
llvm-svn: 41295
 2007-08-22 21:07:41 +00:00
Devang Patel
798ba45c39 Fix typo. 
llvm-svn: 41292
 2007-08-22 20:55:18 +00:00