llvm-svn: 44973

llvm-svn: 44970

llvm-svn: 44969

llvm-svn: 44965

llvm-svn: 44961

Implicit def instructions, e.g. X86::IMPLICIT_DEF_GR32, are always re-materializable and they should not be spilled.

llvm-svn: 44960

put it in a new header System/Host.h instead.
Instead of getting the endianness from configure,
calculate it directly.

llvm-svn: 44959

llvm-svn: 44955

SelectionDAG::getConstant, in the same way as vector floating-point
constants. This allows the legalize expansion code for @llvm.ctpop and
friends to be usable with vector types.

llvm-svn: 44954

our life during future GraphTraits'ing slightly easier.

llvm-svn: 44952

and readnone for functions with bodies because it
broke llvm-gcc-4.2 bootstrap.  It turns out that,
because of LLVM's array_ref hack, gcc was computing
pure/const attributes wrong (now fixed by turning
off the gcc ipa-pure-const pass).

llvm-svn: 44937

2. Using zero-extended value of Scale and unsigned division is safe provided
   that Scale doesn't have the sign bit set.
   Previously these 2 instructions:
        %p = bitcast [100 x {i8,i8,i8}]* %x to i8*
        %q = getelementptr i8* %p, i32 -4
   were combined into:
        %q = getelementptr [100 x { i8, i8, i8 }]* %x, i32 0,
               i32 1431655764, i32 0
   what was incorrect.

llvm-svn: 44936

llvm-svn: 44934

llvm-svn: 44933

llvm-svn: 44929

llvm-svn: 44928

Lower a build_vector with all constants into a constpool load unless it can be done with a move to low part.

llvm-svn: 44921

not support it.

llvm-svn: 44914

Make lli interpreter correctly call external functions sin()/cos(),
__cxa_guard_acquire() and __cxa_guard_release().

llvm-svn: 44910

pointing this out and correcting the patch!

llvm-svn: 44907

llvm-svn: 44905

llvm-svn: 44904

llvm-svn: 44903

interfered with other registers.  Seems like that might be a good thing to do. :-)

llvm-svn: 44902

llvm-svn: 44899

Bug fix. Only safe to perform extension uses optimization if the source of extension is also defined in the same BB as the extension.

llvm-svn: 44896

Changes from me implementing different way of representing points-to anything.
Changes from me that improve slightly on LCD.

llvm-svn: 44895

If deleting a reload instruction due to reuse (value is available in register R and reload is targeting R), make sure to invalidate the kill information of the last kill.

llvm-svn: 44894

llvm-svn: 44892

llvm-svn: 44881

llvm-svn: 44880

llvm-svn: 44877

llvm-svn: 44874

- Fix subtle bug when creating initially creating this map.

llvm-svn: 44873

because those with side effects will be caught by other checks in here.

Also, simplify the check for a BB in a sub loop.

llvm-svn: 44871

llvm-svn: 44869

(my test commit as well)

llvm-svn: 44868

llvm-svn: 44867

be non-zero.

llvm-svn: 44866

llvm-svn: 44865