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1994e3038e
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21040 Commits

Author SHA1 Message Date
Evan Cheng
1994e3038e Bring back a burr scheduling heuristic that's still needed. 
llvm-svn: 45252
 2007-12-20 02:22:36 +00:00
Evan Cheng
eb07401701 Clean up previous patch: PHI uses should not prevent iv reuse if all other uses are addresses. This trades a constant multiply for one fewer iv. 
llvm-svn: 45251
 2007-12-20 02:20:53 +00:00
Chris Lattner
1a386cbdae simplify this code with the new m_Zero() pattern. Make sure the select only 
has a single use, and generalize it to not require N to be a constant.

llvm-svn: 45250
 2007-12-20 01:56:58 +00:00
Bill Wendling
cba1938285 Updated comments to reflect what "side effects" means in this situation. 
llvm-svn: 45245
 2007-12-20 01:08:10 +00:00
Scott Michel
5cbdbd26a8 More working CellSPU tests: 
- vec_const.ll: Vector constant loads
- immed64.ll: i64, f64 constant loads

llvm-svn: 45242
 2007-12-20 00:44:13 +00:00
Evan Cheng
cf7b6b419a Allow iv reuse if the user is a PHI node which is in turn used as addresses. 
llvm-svn: 45230
 2007-12-19 23:33:23 +00:00
Gordon Henriksen
46137f1e2e Adding bindings for memory buffers and module providers. Switching 
to exceptions rather than variants for error handling in Ocaml.

llvm-svn: 45226
 2007-12-19 22:30:40 +00:00
Dale Johannesen
f93ea63eaa Enable EH on PPC Darwin. This basically works; there 
are a couple of issues that show up with the optimizer,
but I don't think they're really EH problems.
(llvm-gcc testsuite users note:  By default the testsuite
uses the unwinding code that's built as part of your local
llvm-gcc, which does not work.  You need to trick it into
using the installed system unwinding code to get useful
results.)

llvm-svn: 45221
 2007-12-19 21:54:36 +00:00
Scott Michel
83ac96e27d CellSPU testcase, extract_elt.ll: extract vector element. 
llvm-svn: 45219
 2007-12-19 21:17:42 +00:00
Duncan Sands
56f3add5b7 When inlining through an 'nounwind' call, mark inlined 
calls 'nounwind'.  It is important for correct C++
exception handling that nounwind markings do not get
lost, so this transformation is actually needed for
correctness.

llvm-svn: 45218
 2007-12-19 21:13:37 +00:00
Scott Michel
6cb9f6d20c Two more test cases: or_ops.ll (arithmetic or operations) and vecinsert.ll 
(vector insertions)

llvm-svn: 45216
 2007-12-19 20:15:47 +00:00
Duncan Sands
b2e0a67cc0 Simplify LowerCallTo by using a callsite. 
llvm-svn: 45198
 2007-12-19 09:48:52 +00:00
Duncan Sands
09250d2dff The C++ exception handling personality function wants 
to know about calls that cannot throw ('nounwind'):
if such a call does throw for some reason then the
personality will terminate the program.  The distinction
between an ordinary call and a nounwind call is that
an ordinary call gets an entry in the exception table
but a nounwind call does not.  This patch sets up the
exception table appropriately.  One oddity is that
I've chosen to bracket nounwind calls with labels (like
invokes) - the other choice would have been to bracket
ordinary calls with labels.  While bracketing
ordinary calls is more natural (because bracketing
by labels would then correspond exactly to getting an
entry in the exception table), I didn't do it because
introducing labels impedes some optimizations and I'm
guessing that ordinary calls occur more often than
nounwind calls.  This fixes the gcc filter2 eh test,
at least at -O0 (the inliner needs some tweaking at
higher optimization levels).

llvm-svn: 45197
 2007-12-19 07:36:31 +00:00
Scott Michel
d4d96bb6f6 Add new immed16.ll test case, fix CellSPU errata to make test case work. 
llvm-svn: 45196
 2007-12-19 07:35:06 +00:00
Bill Wendling
ce9eae6687 Mark the "isRemat" instruction as never having side effects. 
llvm-svn: 45190
 2007-12-19 06:07:48 +00:00
Evan Cheng
694994ba7b Don't leave newly created nodes around if it turns out they are not needed. 
llvm-svn: 45186
 2007-12-19 01:34:38 +00:00
Ted Kremenek
b8c85efce1 Added "GetCurrentDirectory()" to sys::Path. 
llvm-svn: 45182
 2007-12-18 22:07:33 +00:00
Bill Wendling
fe0e399130 Add debugging info. Use the newly created "hasUnmodelledSideEffects" method. 
llvm-svn: 45178
 2007-12-18 21:38:04 +00:00
Christopher Lamb
be0cbc7e92 Fold subtracts into integer compares vs. zero. This improves generate code for this case on X86 
from
_foo:
        movl    $99, %ecx
        movl    4(%esp), %eax
        subl    %eax, %ecx
        xorl    %edx, %edx
        testl   %ecx, %ecx
        cmovs   %edx, %eax
        ret

to
_foo:
        xorl    %ecx, %ecx
        movl    4(%esp), %eax
        cmpl    $99, %eax
        cmovg   %ecx, %eax
        ret

llvm-svn: 45173
 2007-12-18 21:32:20 +00:00
Anton Korobeynikov
f81993feaf Support more insane CEP's in AsmPrinter (Yes, PyPy folks do really use them). 
llvm-svn: 45172
 2007-12-18 20:53:41 +00:00
Christopher Lamb
051a1320e8 Fix comments 
llvm-svn: 45170
 2007-12-18 20:33:11 +00:00
Christopher Lamb
d56318b885 Remove an orthogonal transformation of the selection condition from my most recent submission. 
llvm-svn: 45169
 2007-12-18 20:30:28 +00:00
Ted Kremenek
a0ff305551 Added "isDirectory" method to llvm::sys::Path. 
llvm-svn: 45168
 2007-12-18 19:46:22 +00:00
Evan Cheng
8824950e8f Fix PR1872: SrcValue and SrcValueOffset should not be used to compute load / store node id. 
llvm-svn: 45167
 2007-12-18 19:38:14 +00:00
Chris Lattner
cb4a54fe17 remove obviously dead uses of IncludeFile. 
llvm-svn: 45165
 2007-12-18 19:15:48 +00:00
Evan Cheng
e8de683a74 Also print alignment and volatileness. 
llvm-svn: 45164
 2007-12-18 19:06:30 +00:00
Chris Lattner
fabeb5e6c1 remove a dead annotation 
llvm-svn: 45163
 2007-12-18 19:04:24 +00:00
Chris Lattner
93d750bbe3 add an obvious load folding missed optzn. 
llvm-svn: 45161
 2007-12-18 16:48:14 +00:00
Duncan Sands
242f80be86 Rename isNoReturn to doesNotReturn, and isNoUnwind to 
doesNotThrow.

llvm-svn: 45160
 2007-12-18 09:59:50 +00:00
Christopher Lamb
437b4d229e Fix typos. 
llvm-svn: 45159
 2007-12-18 09:45:40 +00:00
Christopher Lamb
aeb76743dc Fold certain additions through selects (and their compares) so as to eliminate subtractions. This code is often produced by the SMAX expansion in SCEV. 
This implements test/Transforms/InstCombine/2007-12-18-AddSelCmpSub.ll

llvm-svn: 45158
 2007-12-18 09:34:41 +00:00
Evan Cheng
36bfae49e3 FIX for PR1799: When a load is unfolded from an instruction, check if it is a new node. If not, do not create a new SUnit. 
llvm-svn: 45157
 2007-12-18 08:42:10 +00:00
Evan Cheng
e6c89b6120 SelectionDAG::dump() should print SrcValue of LoadSDNode and StoreSDNode. 
llvm-svn: 45151
 2007-12-18 07:02:08 +00:00
Christopher Lamb
efdf2791b2 Don't forget to print address space qualifiers when printing out the type table! Thanks to Gordon Henriksen for pointing this out. 
llvm-svn: 45147
 2007-12-18 03:49:35 +00:00
Chris Lattner
ad090a712a add a missed case. 
llvm-svn: 45141
 2007-12-18 01:19:18 +00:00
Evan Cheng
8b4947fe98 Remove int_x86_sse2_movl_dq. It's replaced with a string compare. 
llvm-svn: 45140
 2007-12-18 01:04:25 +00:00
Bill Wendling
e5af8b6e5c Add "mayHaveSideEffects" and "neverHasSideEffects" flags to some instructions. I 
based what flag to set on whether it was already marked as
"isRematerializable". If there was a further check to determine if it's "really"
rematerializable, then I marked it as "mayHaveSideEffects" and created a check
in the X86 back-end similar to the remat one.

llvm-svn: 45132
 2007-12-17 23:07:56 +00:00
Evan Cheng
d9df071ead Bring back int_x86_sse2_movl_dq intrinsic for backward compatibility. Make sure 
it's auto-upgraded to a shufflevector instruction.

llvm-svn: 45131
 2007-12-17 22:33:23 +00:00
Scott Michel
4f980e1acd - Restore some i8 functionality in CellSPU 
- New test case: nand.ll

llvm-svn: 45130
 2007-12-17 22:32:34 +00:00
Ted Kremenek
28a75d4674 Modified Deserializer::ReadCStr to allow C-strings to be read into a 
std::vector<char> starting from any index in the vector.

llvm-svn: 45129
 2007-12-17 22:25:12 +00:00
Bill Wendling
b33d6155da LD_Fp64m should have "isRematerializable" set. 
llvm-svn: 45128
 2007-12-17 22:17:14 +00:00
Bill Wendling
ec8be72a8b As per feedback, revised comments to (hopefully) make the different side effect 
flags clearer.

llvm-svn: 45120
 2007-12-17 21:02:07 +00:00
Duncan Sands
3a0d757bd5 Make invokes of inline asm legal. Teach codegen 
how to lower them (with no attempt made to be
efficient, since they should only occur for
unoptimized code).

llvm-svn: 45108
 2007-12-17 18:08:19 +00:00
David Greene
d85bd2805d GLIBCXX_DEBUG fix. std::vector<>::end() is invalidated by erase. 
llvm-svn: 45101
 2007-12-17 17:42:03 +00:00
David Greene
3f3a521a33 Get rid of annoying spaces. 
llvm-svn: 45100
 2007-12-17 17:40:29 +00:00
David Greene
8fda00ca05 Fix GLIBCXX_DEBUG errors. Erase invalidates std::vector iterators 
passed the erased element.

llvm-svn: 45099
 2007-12-17 17:39:51 +00:00
Gordon Henriksen
ef2c27d164 C and Ocaml bindings for address spaces, for that burgeoning market 
for Ocaml-based compilers targeting embedded devices. :)

llvm-svn: 45096
 2007-12-17 16:08:32 +00:00
Christopher Lamb
2087584f25 regenerate. 
llvm-svn: 45085
 2007-12-17 01:17:35 +00:00
Christopher Lamb
a608afb52e Change the PointerType api for creating pointer types. The old functionality of PointerType::get() has become PointerType::getUnqual(), which returns a pointer in the generic address space. The new prototype of PointerType::get() requires both a type and an address space. 
llvm-svn: 45082
 2007-12-17 01:12:55 +00:00
Christopher Lamb
d3bac47ce6 Make it clear in the LangRef that allocation instructions only operated on the generic address space. Implement support in the verifier for ensuring this is true. 
llvm-svn: 45080
 2007-12-17 01:00:21 +00:00