cleans up the CMake-based build system a bit. Started by a patch from
Xerxes Rånby.

llvm-svn: 73969

llvm-svn: 73967

llvm-svn: 73966

also some contribution from Jim Grosbach, Bob Wilson, and Evan Cheng.

I've done my best to consolidate the patches with those that were done by
Viktor Kutuzov and Anton Korzh from Access Softek, Inc. Let me know if missed
anything. I've completely reorganized the thumb2 td file, made more extensive
uses of multiclass, etc.

Test cases will be contributed later after I re-organize what's in svn first.

llvm-svn: 73965

llvm-svn: 73964

llvm-svn: 73963

llvm-svn: 73962

macro. Fixes PR 4427. Patch by Xerxes Rånby!

llvm-svn: 73961

llvm-svn: 73959

llvm-svn: 73957

Fold the add (ptr, offset) into ptr[offset] only if the offset is small enough. movwi and moviw allow value of 5-bits only (i.e. 32).

llvm-svn: 73953

llvm-svn: 73950

llvm-svn: 73948

llvm-svn: 73947

Only pad when the section size > 0 and move the code that deals
with globals initializers to a place we know for sure the global
is initialized.

llvm-svn: 73944

llvm-svn: 73929

llvm-svn: 73928

llvm-svn: 73925

llvm-svn: 73923

sides is CouldNotCompute, the resulting exact count must be CouldNotCompute.

llvm-svn: 73920

This is still a work in progress but most of the NEON instruction set
is supported.

llvm-svn: 73919

llvm-svn: 73916

llvm-svn: 73913

llvm-svn: 73912

llvm-svn: 73911

llvm-svn: 73910

another change that makes the types ambiguous (at least as far as tablegen
is concerned).

llvm-svn: 73909

conservatively correctly, instead of aborting.

llvm-svn: 73908

llvm-svn: 73907

llvm-svn: 73906

for "thumb" and add a check for V6T2.

llvm-svn: 73905

llvm-svn: 73903

llvm-svn: 73902

caller-saved register.

llvm-svn: 73901

types for the target (I think).  This was breaking
the PPC32 calling sequence.

llvm-svn: 73900

Fix another register coalescer crash: forgot to check if the instruction being updated has already been coalesced.

llvm-svn: 73898

llvm-svn: 73895

Support for .text relocations, implementing TargetELFWriter overloaded methods for x86/x86_64.
Use a map to track global values to their symbol table indexes
Code cleanup and small fixes

llvm-svn: 73894

llvm-svn: 73893

Banish global state from ScalarEvolution!  SCEV uniquing is now done by tables attached to the ScalarEvolution pass.
This also throws out the SCEV reference counting scheme, as the the SCEVs now have a lifetime controlled by the
ScalarEvolution pass.

Note that SCEVHandle is now a no-op, and will be remove in a future commit.

llvm-svn: 73892