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Author SHA1 Message Date
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
baf0c67988 Add const qualifiers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95582 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 22:00:06 +00:00
Dale Johannesen
8ac38f2a61 Apply the 95471 fix to SelectionDAGBuilder as well; 
we can get in here if FastISel gives up in a block.
(Actually the two copies of this need to be unified.  Later.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95579 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 21:53:27 +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
Dan Gohman
1797ed50f4 Rename the PerformTailCallOpt variable to GuaranteedTailCallOpt to reflect 
its current purpose.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95564 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 20:27:50 +00:00
Johnny Chen
7edd8e38c4 Add VCMP (VFP floating-point compare without 'E' bit set) for disassembly purpose. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95560 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 19:41:48 +00:00
Chris Lattner
5d917a8952 add scaffolding for target-specific MCExprs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95559 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 19:41:07 +00:00
Duncan Sands
52c5e736b7 Flesh out the list of predicates, for those who like this style. I was 
looking for isPointer, and added the rest for uniformity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95557 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 19:36:51 +00:00
Daniel Dunbar
56a04c0c34 ImmutableIntervalMap: Fix for unqualified lookup into dependent base class, done 
by clang's -fixit! :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95551 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 18:08:46 +00:00
Johnny Chen
23401d6f8c Added VMOVRRS/VMOVSRR to ARMInstrVFP.td for disassembly purpose. 
A8.6.331 VMOV (between two ARM core registers and two single-precision registers)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95548 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 17:26:09 +00:00
Duncan Sands
7c2da9648c Fix some typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95542 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 11:03:31 +00:00
Torok Edwin
acf2a65786 Fix x86 JIT stub on MSVC. 
Thanks to Kristaps Straupe for noticing the bug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95537 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 08:37:27 +00:00
Sanjiv Gupta
504b4cdc1c Fixed build error for redefinition. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95532 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 06:08:32 +00:00
Sanjiv Gupta
90f4c914b8 Add uppercase and lowercase part defines in driver. 
Use a temp dir with a unique name in the current dir itself.
Use forward_value instead of unpack_values.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95530 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 05:56:37 +00:00
Nick Lewycky
337c6a8edd Make the destructor for TypeMapBase protected. Spotted by Duncan Sands with 
cppcheck!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95527 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-07 21:13:46 +00:00
Duncan Sands
3dc32ed569 Give DwarfPrinter a protected (but not virtual) destructor. Cppcheck 
warns about this base class not having a virtual destructor, but since
this class has no virtual methods and neither it or the types derived
from it has a destructor, a protected trivial destructor will do (and
shuts cppcheck up) the trick without the cost of introducing a vtable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95526 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-07 21:09:22 +00:00
Bruno Cardoso Lopes
6059b8551d Add suport for VASTART on Mips. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95506 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 21:00:02 +00:00
Bruno Cardoso Lopes
b37a742333 First step towards varargs support in Mips: 
- o32 cc must pass all arguments in A0...A3 and stack regardless
if its type (but respect the alignment).
- Store all variable arguments back to the caller stack.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95500 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 19:20:49 +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
Bob Wilson
5d48c6d2cb Fix an uninitialized value. Radar 7609421. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95488 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 05:55:20 +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
Dale Johannesen
a65aa0f0bb Add a Debug bit to MachineOperand, for uses that 
are from debug info.  Add an iterator to MachineRegisterInfo
to skip Debug operands when walking the use list.  No
functional change yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95473 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 02:28:32 +00:00
Dale Johannesen
dc91856575 After Victor's latest commits I am seeing null 
addresses in dbg.declare; ignore this for the
moment to prevent things from breaking.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95471 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 02:26:02 +00:00
Victor Hernandez
c8d7b85ba1 Linker should not remap null operands of metadata 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95468 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 01:31:55 +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
Jakob Stoklund Olesen
570a4a5d9c Reintroduce the InlineHint function attribute. 
This time it's for real! I am going to hook this up in the frontends as well.

The inliner has some experimental heuristics for dealing with the inline hint.
When given a -respect-inlinehint option, functions marked with the inline
keyword are given a threshold just above the default for -O3.

We need some experiments to determine if that is the right thing to do.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95466 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 01:16:28 +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
Devang Patel
b4645643de Set DW_AT_artificial only if argument is marked as artificial. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95461 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 01:02:37 +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
Jakob Stoklund Olesen
aa034fa229 Update CodeMetrics to count 'big' function calls explicitly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95453 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 23:21:18 +00:00
Devang Patel
6cda22eae4 Do not generate specification DIE for nested functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95452 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 23:09:20 +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
faa75f6f6f add note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95445 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 22:48:33 +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
Chris Lattner
342cbdcc5e print encodings like this: 
pslld	69, %mm3                ## encoding: [0x0f,0xf2,0x1c,0x25,0x45,0x00,0x00,0x00]

instead of like this:
	pslld	69, %mm3                ## encoding: [0x0f,0xf2,0x1c,0x25,0x45,0000,0000,0000]

this only affects 0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95441 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 22:20:08 +00:00
Chris Lattner
39a612e6f9 port X86InstrInfo::determineREX over to the new encoder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95440 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 22:10:22 +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
00cb3fe786 wire up 64-bit MCCodeEmitter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95438 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 21:51:35 +00:00
Chris Lattner
be1778fea7 really kill off the last MRMInitReg inst, remove logic from encoder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95437 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 21:34:18 +00:00
Chris Lattner
28c1d29b09 lower the last of the MRMInitReg instructions in MCInstLower. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95435 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 21:30:49 +00:00
Chris Lattner
35e0e84f93 teach X86MCInstLower to lower the MOV32r0 and MOV8r0 
pseudo instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95433 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 21:21:06 +00:00
Chris Lattner
ff928976f8 genericize helpers, use them for MOV16r0/MOV64r0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95432 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 21:15:57 +00:00
Chris Lattner
c74e333ecc factor code better in X86MCInstLower::Lower, teach it to 
lower the SETB* instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95431 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 21:13:48 +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
Chris Lattner
82ed17eb47 implement the rest of the encoding types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95414 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 19:37:31 +00:00
Chris Lattner
74a2151392 move functions for decoding X86II values into the X86II namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95410 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 19:24:13 +00:00