llvm-svn: 32016

llvm-svn: 32013

unsigned short swp(unsigned short a) {
       return ((a & 0xff00) >> 8 | (a & 0x00ff) << 8);
}

as an idiom for bswap.

llvm-svn: 32011

This implements InstCombine/cast.ll:test34.  It fires hundreds of times on
176.gcc.

llvm-svn: 32009

folding   seteq (bswap(x)), c -> seteq(x,bswap(c))

llvm-svn: 32006

llvm-svn: 32004

llvm-svn: 32003

xchgl %eax, %edx) to llvm.bswap.i64.  This compiles:

long long test2(long long A) {
  return _OSSwapInt64(A);
}

to:

_test2:
        movl 8(%esp), %eax
        movl 4(%esp), %edx
        bswapl %eax
        bswapl %edx
        ret

instead of:

_test2:
        movl 8(%esp), %edx
        movl 4(%esp), %eax
        bswap   %eax
        bswap   %edx
        xchgl   %eax, %edx
        ret

GCC manages (with -fomit-frame-pointer) the uglier:

_test2:
        subl    $4, %esp
        movl    8(%esp), %eax
        movl    12(%esp), %edx
        bswap   %eax
        bswap   %edx
        xchgl   %eax, %edx
        addl    $4, %esp
        ret

llvm-svn: 32001

llvm-svn: 32000

JIT on darwin/x86, which has htonl implemented as inline asm.

llvm-svn: 31999

llvm-svn: 31998

when they want to.

llvm-svn: 31997

llvm-svn: 31996

llvm-svn: 31992

adding a temporary wrapper around the ostream to make it friendly to
functions expecting an LLVM stream. This should be fixed in the future.

llvm-svn: 31990

llvm-svn: 31989

llvm-svn: 31987

llvm-svn: 31986

llvm-svn: 31985

llvm-svn: 31984

llvm streams

llvm-svn: 31983

llvm-svn: 31981

llvm-svn: 31980

llvm-svn: 31979

llvm-svn: 31977

llvm-svn: 31976

llvm-svn: 31975

llvm-svn: 31974

llvm-svn: 31973

llvm-svn: 31972

llvm-svn: 31970

llvm-svn: 31969

llvm-svn: 31966

llvm-svn: 31965

constant lists. This is just an internal change to the parser in
preparation for some backwards compatibility code that is to follow.
This will allow things like "uint 4000000000" to retain the unsignedness
of the integer constant as the value moves through the parser. In the
future, all integer types will be signless but parsing "uint" and friends
will be retained for backwards compatibility.

llvm-svn: 31964

producing code for "trunc to bool". This passes all tests on Linux.

llvm-svn: 31963

llvm-svn: 31958

llvm-svn: 31957

llvm-svn: 31955

llvm-svn: 31954