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9178 Commits

Author SHA1 Message Date
Daniel Dunbar
1b6c060591 MC/X86 AsmMatcher: Fix a use after free spotted by d0k, and de-XFAIL 
x86_32-encoding.s in on expectation of it passing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95806 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:19:28 +00:00
Daniel Dunbar
ac6dd79a55 XFAIL this on linux until I figure out what is happening. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95804 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:01:04 +00:00
Kevin Enderby
d901690b82 Replace this file containing 4 tests of x86 32-bit encodings with a file 
containing the subset of the full auto generated test case that currently
encodes correctly.  Again it is useful as we bring up the the new encoder
to make sure currently working stuff stays working.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95791 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 19:13:56 +00:00
Dan Gohman
a84ffedafc Canonicalize sizeof and alignof on pointer types to a canonical 
pointer type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95769 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 06:13:07 +00:00
Evan Cheng
046632f272 Now that ShrinkDemandedOps() is separated out from DAG combine. It sometimes leave some obvious nops which dag combine used to clean up afterwards e.g. (trunk (ext n)) -> n. Look for them and squash them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95757 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 02:17:34 +00:00
Kevin Enderby
40fe18f66e Fix the encoding of the movntdqa X86 instruction. It was missing the 0x66 
prefix which is part of the opcode encoding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95729 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 00:10:31 +00:00
Chris Lattner
9e8528fc5c fix X86 encoder to output [disp] only addresses with no SIB byte 
in X86-32 mode.  This is still required in x86-64 mode to avoid
forming [disp+rip] encoding.  Rewrite the SIB byte decision logic
to be actually understandable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95693 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 21:47:19 +00:00
Eric Christopher
415326b4ed Move Intrinsic::objectsize lowering back to InstCombineCalls and 
enable constant 0 offset lowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95691 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 21:24:27 +00:00
Dale Johannesen
37de61e52b Re-disable for Darwin; I was mistaken to think this was fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95688 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 19:54:29 +00:00
Eric Christopher
d2592ff69b Pull these back out, they're a little too aggressive and time 
consuming for a simple optimization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95671 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 17:29:18 +00:00
Chris Lattner
cb921e7b57 move tests that depend on the x86 backend out of codegen/generic, 
and remove a few old and unreduced ones.  Fixes PR5624. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95656 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 06:41:03 +00:00
Chris Lattner
4a26cc4de6 make target independent. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95655 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 06:36:30 +00:00
Chris Lattner
b00cd1c899 merge a target-specific add test into x86 directory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95654 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 06:35:50 +00:00
Chris Lattner
7816239985 merge another test in, drop the trivially constant folded cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95653 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 06:33:27 +00:00
Chris Lattner
71d845c48a consolidate and filecheckize two tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95652 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 06:24:00 +00:00
Chris Lattner
2b7ff1be96 merge two tests, make target independent. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95651 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 06:19:20 +00:00
Chris Lattner
e538db4fb0 fix PR6193, only considering sign extensions *from i1* for this 
xform.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95642 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 01:12:41 +00:00
Chris Lattner
e16b0fc3cb Implement x86 asm parsing support for %st and %st(4) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95634 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 00:49:22 +00:00
Eric Christopher
1926b648e1 Add a new pass to do llvm.objsize lowering using SCEV. 
Initial skeleton and SCEVUnknown lowering implemented,
the rest should come relatively quickly.  Move testcase
to new directory.

Move pass to right before SimplifyLibCalls - which is
moved down a bit so we can take advantage of a few opts.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95628 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 00:35:38 +00:00
Chris Lattner
d863b766f5 convert to filecheck. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95608 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 23:47:34 +00:00
Devang Patel
3c280fccf9 test case for r95604. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95605 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 23:27:46 +00:00
Chris Lattner
25ceb5f317 add an x86 implementation of MCTargetExpr for 
representing @GOT and friends.  Use it for
personality references as a first use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95588 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 22:09:08 +00:00
Dan Gohman
618f17702d When CodeGen'ing unoptimized code, there may be unfolded constant expressions 
in global initializers. Instead of aborting, attempt to fold them on the
spot. If folding succeeds, emit the folded expression instead.

This fixes PR6255.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95583 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 22:02:38 +00:00
Dan Gohman
c2e93b255e In guaranteed tailcall mode, don't decline the tailcall optimization 
for blocks ending in "unreachable".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95565 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 20:34:14 +00:00
Evan Cheng
00a99a3584 Run codegen dce pass for all targets at all optimization levels. Previously it's 
only run for x86 with fastisel. I've found it being very effective in
eliminating some obvious dead code as result of formal parameter lowering
especially when tail call optimization eliminated the need for some of the loads
from fixed frame objects. It also shrinks a number of the tests. A couple of
tests no longer make sense and are now eliminated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95493 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 09:07:11 +00:00
Evan Cheng
e3e86dce64 Remove a large test case that (soon will) no longer make sense. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95492 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 09:00:30 +00:00
Rafael Espindola
2f82ca904a Fix alignment on ppc linux. This fixes the build of crtend.o 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95477 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 03:32:21 +00:00
Evan Cheng
f22f9b35d6 Do not emit callseq instructions around sibcalls. This eliminated some unnecessary stack adjustments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95475 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 03:28:46 +00:00
Victor Hernandez
2b3365ca1d Function-local metadata whose operands had been optimized to no longer refer to function-local IR were not getting written by BitcodeWriter; solution is for these metadata to be enumerated just like global metadata. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95467 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 01:21:09 +00:00
Bob Wilson
8d535859e5 Add a test for my change to disable reassociation for i1 types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95465 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 01:16:25 +00:00
Bob Wilson
e6373eb826 Handle AddrMode6 (for NEON load/stores) in Thumb2's rewriteT2FrameIndex. 
Radar 7614112.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95456 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 00:24:38 +00:00
Jakob Stoklund Olesen
d450e5b886 Don't unroll loops containing function calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95454 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 23:21:31 +00:00
Chris Lattner
8f60e4d679 fix incorrect encoding of SBB8mi that Kevin noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95448 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 22:56:11 +00:00
Chris Lattner
3f1118310e fix a case where we'd mis-encode fisttp because of an incorrect (and 
redundant with a correct one) pattern that was added for the disassembler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95446 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 22:49:06 +00:00
Chris Lattner
c8296a0d59 remove fixme 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95444 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 22:46:46 +00:00
Jakob Stoklund Olesen
58e9ee85fd Teach SimplifyCFG about magic pointer constants. 
Weird code sometimes uses pointer constants other than null. This patch
teaches SimplifyCFG to build switch instructions in those cases.

Code like this:

void f(const char *x) {
  if (!x)
    puts("null");
  else if ((uintptr_t)x == 1)
    puts("one");
  else if (x == (char*)2 || x == (char*)3)
    puts("two");
  else if ((intptr_t)x == 4)
    puts("four");
  else
    puts(x);
}

Now becomes a switch:

define void @f(i8* %x) nounwind ssp {
entry:
  %magicptr23 = ptrtoint i8* %x to i64            ; <i64> [#uses=1]
  switch i64 %magicptr23, label %if.else16 [
    i64 0, label %if.then
    i64 1, label %if.then2
    i64 2, label %if.then9
    i64 3, label %if.then9
    i64 4, label %if.then14
  ]

Note that LLVM's own DenseMap uses magic pointers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95439 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 22:03:18 +00:00
Chris Lattner
74529826a7 fix logical-select to invoke filecheck right, and fix hte instcombine 
xform it is checking to actually pass.  There is no need to match
m_SelectCst<0, -1> since instcombine canonicalizes that into not(sext).

Add matches for sext(not(x)) in addition to not(sext(x)).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95420 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 19:53:02 +00:00
Eric Christopher
724bea90b0 Remove this code for now. I have a better idea and will rewrite with 
that in mind.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95402 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 19:04:06 +00:00
Bill Wendling
63d58ebd09 Make test more fucused eliminating extraneous bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95384 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 11:21:05 +00:00
Evan Cheng
401f030fb8 Fix test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95373 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 06:37:00 +00:00
Evan Cheng
5f94193b36 Handle tail call with byval arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95351 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 02:21:12 +00:00
Evan Cheng
5ba8bf6d28 When the scheduler unfold a load folding instruction it move some of the predecessors to the unfolded load. It decides what gets moved to the load by checking whether the new load is using the predecessor as an operand. The check neglects the cases whether the predecessor is a flagged scheduling unit. 
rdar://7604000


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95339 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 01:27:11 +00:00
Bill Wendling
744f579b63 An empty global constant (one of size 0) may have a section immediately 
following it. However, the EmitGlobalConstant method wasn't emitting a body for
the constant. The assembler doesn't like that. Before, we were generating this:

  .zerofill __DATA, __common, __cmd, 1, 3

This fix puts us back to that semantic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95336 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 00:17:02 +00:00
Jakob Stoklund Olesen
e4d2d96cc8 Fix small bug in handling instructions with more than one implicitly defined operand. 
ProcessImplicitDefs would only mark one operand per instruction with <undef>.
This fixed PR6086.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95319 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-04 18:46:28 +00:00
Benjamin Kramer
66c439af28 Get the LLVMC tests working with clang++ by removing the problematic CXXFLAG in lit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95318 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-04 18:40:11 +00:00
Chris Lattner
a3b24f80d9 fix a broken archive that was breaking dejagnu only (not lit) 
after r95292 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95296 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-04 07:11:08 +00:00
Evan Cheng
1f2fda97b1 Re-enable x86 tail call optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95295 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-04 06:47:24 +00:00
Eric Christopher
e7b97471f8 Temporarily revert this since it appears to have caused a build 
failure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95294 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-04 06:41:27 +00:00
Chris Lattner
87c06d6179 add support for the sparcv9-*-* target triple to turn on 
64-bit sparc codegen.  Patch by Nathan Keynes!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95293 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-04 06:34:01 +00:00
Chris Lattner
4633306844 From PR6228: 
"Attached patch removes the extra NUL bytes from the output and changes
test/Archive/MacOSX.toc from a binary to a text file (removes
svn:mime-type=application/octet-stream and adds svn:eol-style=native).  I can't
figure out how to get SVN to include the new contents of the file in the patch
so I'm attaching it separately."

Patch by James Abbatiello!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95292 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-04 06:19:43 +00:00