Use construction vtables when needed. This is currently guarded by -fdump-vtable-layouts since it doesn't work 100% yet :)

llvm-svn: 99787

Two bug fixes, we weren't updating the thunk index when creating the vtable initializer and we weren't storing the secondary virtual pointer indices.

llvm-svn: 99786

Make default arguments to getFunctionNoProtoType an all or nothing option (as they already are in practise).

llvm-svn: 99785

llvm-svn: 99783

llvm-svn: 99778

Reapply r99775 with a fix for a silly bug - we were setting the vtable pointer for all bases, even those without a vtable pointer :)

llvm-svn: 99777

llvm-svn: 99776

More improvements to setting the vtable pointer. We now no longer set the vtable pointer for non-virtual primary bases. We also do a pre-order traversal of the class hierarchy; this is necessary in order to get the right vbase offset offsets in base ctors/dtors.

llvm-svn: 99775

llvm-svn: 99774

llvm-svn: 99773

llvm-svn: 99772

llvm-svn: 99770

Otherwise, e.g. in the invocation like clang -DFOO=\"bar\" FOO macro
got the bar value, not "bar".

Patch by Alexander Esilevich!

llvm-svn: 99763

SELinux doesn't allow 'execmem', returning MAP_FAILED and 'Permission denied'
for mmap or RWX memory. In this case AllocateRWX was returning a MemoryBlock
with uninitialized fields, which sometimes caused crashes.

This patch initializes MemoryBlock fields to 0, so that the RWX-failure check
works.
It doesn't fix the SELinux 'execmem' issues though (the JIT will not work when
SELinux is in enforcing mode).

llvm-svn: 99762

where an incorrect number of operands is provided to an sdnode instead
of just a few cases.

llvm-svn: 99761

llvm-svn: 99760

and those derived from them.  These are obnoxious because
they were written as: PatLeaf<(bitconvert).  Not having an
argument was foiling adding better type checking for operand
count matching up with what was required (in this case,
bitconvert always requires an operand!)

llvm-svn: 99759

matchable: it seems like it would always constant fold.

llvm-svn: 99758

this also depends on the new "bitconvert dropping" behavior just
added to tblgen.

llvm-svn: 99757

transforming it into (add (i32 GPR), 4).  This allows us to write type
generic multi patterns and have tblgen automatically drop the bitconvert
in the case when the types align.  This allows us to fold an extra load
in the changed testcase.

llvm-svn: 99756

llvm-svn: 99755

input to be v8i8 or v16i8, which buildvectors get canonicalized to.

This allows the patterns that were previously using a bare 'vnot' to
match, before they couldn't.

llvm-svn: 99754

patterns that would never match because of bitcast, and eliminating use
of vnot_conv.

llvm-svn: 99753

llvm-svn: 99752

llvm-svn: 99751

llvm-svn: 99750

*input* of other type, which is the VT. 

llvm-svn: 99749

llvm-svn: 99748

llvm-svn: 99747

by rotating it.

llvm-svn: 99746

llvm-svn: 99745

llvm-svn: 99744

llvm-svn: 99743

llvm-svn: 99742

are cleaned up, we can remove an old fixme.

llvm-svn: 99741

1, 1 cases which are by-far the most frequent.  This shrinks the X86
isel table from 77014 -> 74657 bytes.

llvm-svn: 99740

can cause a crash on crazy situations in msp430 when morph-node-to
is disabled.

llvm-svn: 99739

their flags correctly.

llvm-svn: 99738

llvm-svn: 99737

nodes all have an EFLAGS result when made by isel lowering.

llvm-svn: 99736