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Author SHA1 Message Date
Johnny Chen
396391964d Add VCVTR (between floating-point and integer, VFP) for disassembly purpose. 
The 'R' suffix means the to-integer operations use the rounding mode specified
by the FPSCR, encoded as Inst{7} = 0.

A8.6.295

llvm-svn: 95584
 2010-02-08 22:02:41 +00:00
Dan Gohman
56b9ea088b 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.

llvm-svn: 95583
 2010-02-08 22:02:38 +00:00
Dan Gohman
30a32bc593 Add const qualifiers. 
llvm-svn: 95582
 2010-02-08 22:00:06 +00:00
Dale Johannesen
5ddd318b03 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.)

llvm-svn: 95579
 2010-02-08 21:53:27 +00:00
Dan Gohman
f113e5466c In guaranteed tailcall mode, don't decline the tailcall optimization 
for blocks ending in "unreachable".

llvm-svn: 95565
 2010-02-08 20:34:14 +00:00
Dan Gohman
f45b7c6795 Rename the PerformTailCallOpt variable to GuaranteedTailCallOpt to reflect 
its current purpose.

llvm-svn: 95564
 2010-02-08 20:27:50 +00:00
Johnny Chen
7092ebb040 Add VCMP (VFP floating-point compare without 'E' bit set) for disassembly purpose. 
llvm-svn: 95560
 2010-02-08 19:41:48 +00:00
Chris Lattner
b3fe7597f5 add scaffolding for target-specific MCExprs. 
llvm-svn: 95559
 2010-02-08 19:41:07 +00:00
Duncan Sands
983b171d40 Flesh out the list of predicates, for those who like this style. I was 
looking for isPointer, and added the rest for uniformity.

llvm-svn: 95557
 2010-02-08 19:36:51 +00:00
Daniel Dunbar
e56fb57d08 ImmutableIntervalMap: Fix for unqualified lookup into dependent base class, done 
by clang's -fixit! :)

llvm-svn: 95551
 2010-02-08 18:08:46 +00:00
Johnny Chen
92ec9f2887 Added VMOVRRS/VMOVSRR to ARMInstrVFP.td for disassembly purpose. 
A8.6.331 VMOV (between two ARM core registers and two single-precision registers)

llvm-svn: 95548
 2010-02-08 17:26:09 +00:00
Duncan Sands
70a24159d2 Fix some typos. 
llvm-svn: 95542
 2010-02-08 11:03:31 +00:00
Torok Edwin
01b6959fb6 Fix x86 JIT stub on MSVC. 
Thanks to Kristaps Straupe for noticing the bug.

llvm-svn: 95537
 2010-02-08 08:37:27 +00:00
Sanjiv Gupta
4a56e894a7 Fixed build error for redefinition. 
llvm-svn: 95532
 2010-02-08 06:08:32 +00:00
Sanjiv Gupta
09a80bb7d9 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.

llvm-svn: 95530
 2010-02-08 05:56:37 +00:00
Nick Lewycky
866c48ae12 Make the destructor for TypeMapBase protected. Spotted by Duncan Sands with 
cppcheck!

llvm-svn: 95527
 2010-02-07 21:13:46 +00:00
Duncan Sands
ea225349b0 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.

llvm-svn: 95526
 2010-02-07 21:09:22 +00:00
Bruno Cardoso Lopes
014f8fc7b1 Add suport for VASTART on Mips. 
llvm-svn: 95506
 2010-02-06 21:00:02 +00:00
Bruno Cardoso Lopes
2f4294068f 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.

llvm-svn: 95500
 2010-02-06 19:20:49 +00:00
Evan Cheng
5541068ad3 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.

llvm-svn: 95493
 2010-02-06 09:07:11 +00:00
Evan Cheng
c3cfda4e7e Remove a large test case that (soon will) no longer make sense. 
llvm-svn: 95492
 2010-02-06 09:00:30 +00:00
Bob Wilson
61a15581e7 Fix an uninitialized value. Radar 7609421. 
llvm-svn: 95488
 2010-02-06 05:55:20 +00:00
Rafael Espindola
b0bb1ddfe3 Fix alignment on ppc linux. This fixes the build of crtend.o 
llvm-svn: 95477
 2010-02-06 03:32:21 +00:00
Evan Cheng
de1a4726e6 Do not emit callseq instructions around sibcalls. This eliminated some unnecessary stack adjustments. 
llvm-svn: 95475
 2010-02-06 03:28:46 +00:00
Dale Johannesen
05cffb66ae 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.

llvm-svn: 95473
 2010-02-06 02:28:32 +00:00
Dale Johannesen
83f31d3511 After Victor's latest commits I am seeing null 
addresses in dbg.declare; ignore this for the
moment to prevent things from breaking.

llvm-svn: 95471
 2010-02-06 02:26:02 +00:00
Victor Hernandez
157da4b794 Linker should not remap null operands of metadata 
llvm-svn: 95468
 2010-02-06 01:31:55 +00:00
Victor Hernandez
e65222a748 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. 
llvm-svn: 95467
 2010-02-06 01:21:09 +00:00
Jakob Stoklund Olesen
83ebc265b3 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.

llvm-svn: 95466
 2010-02-06 01:16:28 +00:00
Bob Wilson
60fb5a2446 Add a test for my change to disable reassociation for i1 types. 
llvm-svn: 95465
 2010-02-06 01:16:25 +00:00
Devang Patel
102b8a3103 Set DW_AT_artificial only if argument is marked as artificial. 
llvm-svn: 95461
 2010-02-06 01:02:37 +00:00
Bob Wilson
1a324958d6 Handle AddrMode6 (for NEON load/stores) in Thumb2's rewriteT2FrameIndex. 
Radar 7614112.

llvm-svn: 95456
 2010-02-06 00:24:38 +00:00
Jakob Stoklund Olesen
7b4c60adae Don't unroll loops containing function calls. 
llvm-svn: 95454
 2010-02-05 23:21:31 +00:00
Jakob Stoklund Olesen
039cd8ab3a Update CodeMetrics to count 'big' function calls explicitly. 
llvm-svn: 95453
 2010-02-05 23:21:18 +00:00
Devang Patel
9eb9bb03c9 Do not generate specification DIE for nested functions. 
llvm-svn: 95452
 2010-02-05 23:09:20 +00:00
Chris Lattner
e1b8c529a4 fix incorrect encoding of SBB8mi that Kevin noticed. 
llvm-svn: 95448
 2010-02-05 22:56:11 +00:00
Chris Lattner
9d4e878b6a 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.

llvm-svn: 95446
 2010-02-05 22:49:06 +00:00
Chris Lattner
261d9ac280 add note. 
llvm-svn: 95445
 2010-02-05 22:48:33 +00:00
Chris Lattner
bec530a499 remove fixme 
llvm-svn: 95444
 2010-02-05 22:46:46 +00:00
Chris Lattner
b79cdb101f 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.

llvm-svn: 95441
 2010-02-05 22:20:08 +00:00
Chris Lattner
8db3500688 port X86InstrInfo::determineREX over to the new encoder. 
llvm-svn: 95440
 2010-02-05 22:10:22 +00:00
Jakob Stoklund Olesen
670458b3be 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.

llvm-svn: 95439
 2010-02-05 22:03:18 +00:00
Chris Lattner
15817c2239 wire up 64-bit MCCodeEmitter. 
llvm-svn: 95438
 2010-02-05 21:51:35 +00:00
Chris Lattner
22151cbec5 really kill off the last MRMInitReg inst, remove logic from encoder. 
llvm-svn: 95437
 2010-02-05 21:34:18 +00:00
Chris Lattner
071fe62af6 lower the last of the MRMInitReg instructions in MCInstLower. 
llvm-svn: 95435
 2010-02-05 21:30:49 +00:00
Chris Lattner
9b3cf069dc teach X86MCInstLower to lower the MOV32r0 and MOV8r0 
pseudo instructions.

llvm-svn: 95433
 2010-02-05 21:21:06 +00:00
Chris Lattner
f77eadcfbb genericize helpers, use them for MOV16r0/MOV64r0 
llvm-svn: 95432
 2010-02-05 21:15:57 +00:00
Chris Lattner
32f09202d6 factor code better in X86MCInstLower::Lower, teach it to 
lower the SETB* instructions.

llvm-svn: 95431
 2010-02-05 21:13:48 +00:00
Chris Lattner
44965f1107 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)).

llvm-svn: 95420
 2010-02-05 19:53:02 +00:00
Chris Lattner
3590276566 implement the rest of the encoding types. 
llvm-svn: 95414
 2010-02-05 19:37:31 +00:00