llvm-svn: 17055

llvm-svn: 17054

llvm-svn: 17053

llvm-svn: 17052

llvm-svn: 17051

llvm-svn: 17050

now compile:

'foo() {}' into "ret" instead of "mov EAX, 0; ret"

llvm-svn: 17049

llvm-svn: 17048

llvm-svn: 17047

llvm-svn: 17046

llvm-svn: 17045

ignore unreachable instructions

llvm-svn: 17044

llvm-svn: 17043

that are initialized with undef.  When promoting malloc to a global, start out
initialized to undef

llvm-svn: 17042

llvm-svn: 17041

llvm-svn: 17040

llvm-svn: 17039

llvm-svn: 17038

llvm-svn: 17037

llvm-svn: 17036

llvm-svn: 17035

llvm-svn: 17034

llvm-svn: 17033

Update for changes in LLVM 1.4 bytecode format.

llvm-svn: 17032

llvm-svn: 17031

llvm-svn: 17030

llvm-svn: 17029

llvm-svn: 17027

that the vtables for these classes are only instantiated in this translation
unit, not in every xlation unit they are used.

llvm-svn: 17026

Instructions.cpp, so that a vtable is not emitted into every translation unit
that uses the classes.

llvm-svn: 17025

llvm-svn: 17024

llvm-svn: 17023

llvm-svn: 17022

llvm-svn: 17017

llvm-svn: 17016

case:

int C[100];
int foo() {
  return C[4];
}

We now codegen:

foo:
        mov %EAX, DWORD PTR [C + 16]
        ret

instead of:

foo:
        mov %EAX, OFFSET C
        mov %EAX, DWORD PTR [%EAX + 16]
        ret

Other impressive features may be coming later.

This patch is contributed by Jeff Cohen!

llvm-svn: 17011

contributed by Jeff Cohen!

llvm-svn: 17010

constant displacements from global variables.  Patch by Jeff Cohen!

llvm-svn: 17009

by Jeff Cohen!

llvm-svn: 17008

useful when you have a reference like:

int A[100];

void foo() { A[10] = 1; }

In this case, &A[10] is a single constant and should be treated as such.

Only MO_GlobalAddress and MO_ExternalSymbol are allowed to use this field, no
other operand type is.

This is another fine patch contributed by Jeff Cohen!!

llvm-svn: 17007