CPU.

llvm-svn: 23974

llvm-svn: 23973

llvm-svn: 23962

one use (but one is a cast).  This handles the very common case of:

 X = alloc [n x byte]
 Y = cast X to somethingbetter
 seteq X, null

In order to avoid infinite looping when there are multiple casts, we only
allow this if the xform is strictly increasing the alignment of the
allocation.

llvm-svn: 23961

where the second has less alignment required.  If we had explicit alignment
support in the IR, we could handle this case, but we can't until we do.

llvm-svn: 23960

more effective at promoting these allocations, catching them earlier in the
compile process.

llvm-svn: 23959

llvm-svn: 23958

llvm-svn: 23956

in the future, remove it.

llvm-svn: 23952

llvm-svn: 23949

llvm-svn: 23944

llvm-svn: 23943

llvm-svn: 23940

llvm-svn: 23938

This should speed up build times.

llvm-svn: 23937

llvm-svn: 23936

llvm-svn: 23935

This should speed up build times.

llvm-svn: 23934

This should speed up build times.

llvm-svn: 23933

code

llvm-svn: 23931

llvm-svn: 23927

llvm-svn: 23924

llvm-svn: 23920

llvm-svn: 23918

on big endian 32-bit targets in some cases (e.g. PPC).  This fixes several
PPC JIT failures.

llvm-svn: 23914

llvm-svn: 23912

llvm-svn: 23909

llvm-svn: 23908

llvm-svn: 23906

llvm-svn: 23905

llvm-svn: 23904

llvm-svn: 23903

future.

llvm-svn: 23902

llvm-svn: 23901

llvm-svn: 23898

llvm-svn: 23897

llvm-svn: 23893

llvm-svn: 23892

use LowercaseString from StringExtras.h, remove extraneous space from help
output.

llvm-svn: 23891

pointer marking the end of the list, the zero *must* be cast to the pointer
type.  An un-cast zero is a 32-bit int, and at least on x86_64, gcc will
not extend the zero to 64 bits, thus allowing the upper 32 bits to be
random junk.

The new END_WITH_NULL macro may be used to annotate a such a function
so that GCC (version 4 or newer) will detect the use of un-casted zero
at compile time.

llvm-svn: 23888