Mark all the _REV instructions as not having side effects. They aren't really emitted by the backend, but it reduces the number of instructions in the output files with unmodelled side effects to make auditing easier.

llvm-svn: 171118

Remove a special conditional setting of neverHasSideEffects if the instruction didn't have a pattern. This was leftover from when tablegen used to complain if things were already inferred from patterns.

llvm-svn: 171117

LoopVectorizer: Optimize the vectorization of consecutive memory access when the iteration step is -1

llvm-svn: 171114

Origin alignment is as high as the alignment of the corresponding application
location, but never less than 4.

llvm-svn: 171110

llvm-svn: 171109

llvm-svn: 171103

llvm-svn: 171102

llvm-svn: 171097

llvm-svn: 171096

llvm-svn: 171095

llvm-svn: 171093

Use an additional multiclass to merge the 128/256-bit SSE/AVX instruction definitions for a bunch of SSE2 integer arithmetic instructions.

llvm-svn: 171092

llvm-svn: 171091

Use an additional multiclass to merge the 128/256-bit SSE/AVX instruction definitions for PAND/POR/PXOR/PANDN

llvm-svn: 171087

llvm-svn: 171086

llvm-svn: 171085

llvm-svn: 171082

Remove alignment from folding table for VMOVUPD as an unaligned instruction it shouldn't require alignment...

llvm-svn: 171081

Remove alignment requirements from (V)EXTRACTPS. This instruction does 32-bit stores which aren't required to be aligned on SSE or AVX.

llvm-svn: 171080

For the time being this includes only some dummy test cases. Once the
generic implementation of the intrinsics cost function does something other
than assuming scalarization in all cases, or some target specializes the
interface, some real test cases can be added.

Also, for consistency, I changed the type of IID from unsigned to Intrinsic::ID
in a few other places.

llvm-svn: 171079

Remove alignment requirement from VCVTSS2SD in folding tables. Reverting r171049. This instruction doesn't require alignment.

llvm-svn: 171078

llvm-svn: 171076

llvm-svn: 171075

Use of store or load with the atomic specifier on 64-bit types would
cause instruction-selection failures. As with the 32-bit case, these
can use the default expansion in terms of cmp-and-swap.

llvm-svn: 171072

VectorType::getInteger() can not be used with them, because pointer size
depends on the target.

llvm-svn: 171070

llvm-svn: 171069

llvm-svn: 171064

pcmpeqd, pshufd, pshufd, pand is cheaper than unpack + cmpq, sbbq, cmpq, sbbq + pack.
Small speedup on loop-vectorized viterbi (-march=core2).

llvm-svn: 171063

llvm-svn: 171061

llvm-svn: 171060

llvm-svn: 171051

llvm-svn: 171049

These are now generally used for all diagnostics from the backend, not just
for inline assembly, so this drops the "InlineAsm" from the names.  No
functional change.  (I've left aliases for the old names but only for long
enough to let me switch over clang to use the new ones.)

llvm-svn: 171047

llvm-svn: 171044

This affords us to use std::string's allocation routines and use the destructor
for the memory management. Switching to that also means that we can use
operator==(const std::string&, const char *) to perform the string comparison
rather than resorting to libc functionality (i.e. strcmp).

Patch by Saleem Abdulrasool!

Differential Revision: http://llvm-reviews.chandlerc.com/D230

llvm-svn: 171042

When the backend is used from clang, it should produce proper diagnostics
instead of just printing messages to errs(). Other clients may also want to
register their own error handlers with the LLVMContext, and the same handler
should work for warnings in the same way as the existing emitError methods.

llvm-svn: 171041

support for the insert-subvector and extract-subvector kinds.

llvm-svn: 171027

llvm-svn: 171026

Removed "static" from "__jit_debug_descriptor" because "static" adds C++ mangling prefix to this symbol. 

llvm-svn: 171025

Some x86 instructions can load/store one of the operands to memory. On SSE, this memory needs to be aligned.
When these instructions are encoded in VEX (on AVX) there is no such requirement. This changes the folding
tables and removes the alignment restrictions from VEX-encoded instructions.

llvm-svn: 171024