llvm-svn: 128860

rdar://problem/9229922 ARM disassembler discrepancy: erroneously accepting RFE

Also LDC/STC instructions are predicated while LDC2/STC2 instructions are not, fixed while
doing regression testings.

llvm-svn: 128859

Fix PR 9626 (duplicated self-init warnings under -Wuninitialized) with numerous CFG and UninitializedValues analysis changes:

1) Change the CFG to include the DeclStmt for conditional variables, instead of using the condition itself as a faux DeclStmt.
2) Update ExprEngine (the static analyzer) to understand (1), so not to regress.
3) Update UninitializedValues.cpp to initialize all tracked variables to Uninitialized at the start of the function/method.
4) Only use the SelfReferenceChecker (SemaDecl.cpp) on global variables, leaving the dataflow analysis to handle other cases.

The combination of (1) and (3) allows the dataflow-based -Wuninitialized to find self-init problems when the initializer
contained control-flow.

llvm-svn: 128858

llvm-svn: 128857

llvm-svn: 128856

llvm-svn: 128855

llvm-svn: 128854

llvm-svn: 128853

between libFrontend and libDriver.

llvm-svn: 128852

The JITMemory manager references LLVM IR constructs directly, while the
runtime Dyld works at a lower level and can handle objects which may not
originate from LLVM IR. Introduce a new layer for the memory manager to
handle the interface between them. For the MCJIT, this layer will be almost
entirely simply a call-through w/ translation between the IR objects and
symbol names.

llvm-svn: 128851

llvm-svn: 128850

Change test/Analysis/idempotent-operations.c to output the .plist file in the test output directory.

llvm-svn: 128849

Introduce Driver::createInvocationFromArgs used to create a CompilerInvocation from command-line args.

llvm-svn: 128848

llvm-svn: 128847

When a virtual register has a single value that is defined as a copy of a
reserved register, permit that copy to be joined. These virtual register are
usually copies of the stack pointer:

  %vreg75<def> = COPY %ESP; GR32:%vreg75
  MOV32mr %vreg75, 1, %noreg, 0, %noreg, %vreg74<kill>
  MOV32mi %vreg75, 1, %noreg, 8, %noreg, 0
  MOV32mi %vreg75<kill>, 1, %noreg, 4, %noreg, 0
  CALLpcrel32 ...

Coalescing these virtual registers early decreases register pressure.
Previously, they were coalesced by RALinScan::attemptTrivialCoalescing after
register allocation was completed.

The lower register pressure causes the mcinst-lowering-cmp0.ll test case to fail
because it depends on linear scan spilling a particular register.

I am deleting 2008-08-05-SpillerBug.ll because it is counting the number of
instructions emitted, and its revision history shows the 'correct' count being
edited many times.

llvm-svn: 128845

llvm-svn: 128844

-Wuninitialized: use "self-init" warning when issue uninitialized values warnings from the dataflow analysis that include within the initializer of a variable.

llvm-svn: 128843

llvm-svn: 128842

rdar://problem/9225433

llvm-svn: 128841

llvm-svn: 128840

llvm-svn: 128839

-Wuninitialized: don't issue fixit for initializer if a variable declaration already has an initializer.

llvm-svn: 128838

GDBRemoteCommunicationServer classes. This involved adding a new packet
named "qSpeedTest" which can test the speed of a packet send/response pairs
using a wide variety of send/recv packet sizes.

Added a few new connection classes: one for shared memory, and one for using
mach messages (Apple only). The mach message stuff is experimental and not 
working yet, but added so I don't lose the code. The shared memory stuff
uses pretty standard calls to setup shared memory.

llvm-svn: 128837

This causes defs to dominate uses, no instructions after terminators, and other
goodness.

llvm-svn: 128836

The code inserted by PPCTargetLowering::EmitInstrWithCustomInserter for ppc64 is
wrong, and I don't know how to fix it. It seems to be using the correct register
classes for pointers, but it inserts all 32-bit instructions.

llvm-svn: 128835

llvm-svn: 128834

When emitting a "too many arguments to function call..." error, also include a note with a location for the function prototype.

llvm-svn: 128833

  also fix the encoding of the later.
- Add a new encoding bit to describe the index mode used in AM3.
- Teach printAddrMode3Operand to check by the addressing mode which
  index mode to print.
- Testcases.

llvm-svn: 128832

llvm-svn: 128831

Move transformation of JmpLink and related nodes done during instruction selection to Legalize phase.

llvm-svn: 128830

llvm-svn: 128829

The 32-bit R0 cannot be used where a 64-bit register is expected.

llvm-svn: 128828

llvm-svn: 128827

llvm-svn: 128826

Sandeep Patel noticed that the alignment was wrong for Neon vector types,
and this change is partly derived from his patch.  For the APCS ABI, however,
additional changes were required: the maximum ABI alignment is 32 bits and
the preferred alignment for i64 and f64 types should be 64 bits.

llvm-svn: 128825

llvm-svn: 128823

Define most shift masks incrementally to reduce the redundant
hard-coding. Introduce new shift for the VEX flags to replace the
magic constant 32 in various places.

llvm-svn: 128822

llvm-svn: 128821

llvm-svn: 128820

llvm-svn: 128819