llvm-svn: 26074

llvm-svn: 26071

llvm-svn: 26070

llvm-svn: 26069

SDOperand Select(SDOperand N);
to
void Select(SDOperand &Result, SDOperand N);

llvm-svn: 26067

llvm-svn: 26066

llvm-svn: 26065

Move the methods out of line.
Remove unused Debug.h stuff.
Teach getNumBytesForInstruction to know the size of an inline asm.

llvm-svn: 26064

llvm-svn: 26062

optimization where we reduce the number of bits in AND masks when possible.

llvm-svn: 26056

llvm-svn: 26054

llvm-svn: 26053

llvm-svn: 26052

llvm-svn: 26051

instruction onto the worklist (in case they are now dead).

Add a really trivial local DSE implementation to help out bitfield code.
We now fold this:

struct S {
    unsigned char a : 1, b : 1, c : 1, d : 2, e : 3;
    S();
};

S::S() : a(0), b(0), c(1), d(0), e(6) {}

to this:

void %_ZN1SC1Ev(%struct.S* %this) {
entry:
        %tmp.1 = getelementptr %struct.S* %this, int 0, uint 0
        store ubyte 38, ubyte* %tmp.1
        ret void
}

much earlier (in gccas instead of only in gccld after DSE runs).

llvm-svn: 26050

test/Regression/Transforms/SCCP/select.ll

llvm-svn: 26049

        xori r6, r2, 1
        rlwinm r6, r6, 0, 31, 31
        cmpwi cr0, r6, 0
        bne cr0, LBB1_3 ; endif

to this:

        rlwinm r6, r2, 0, 31, 31
        cmpwi cr0, r6, 0
        beq cr0, LBB1_3 ; endif

llvm-svn: 26047

llvm-svn: 26045

llvm-svn: 26044

specified in bytes.

llvm-svn: 26043

llvm-svn: 26042

llvm-svn: 26040

Also fixed a function stub bug. Added weak and linkonce support for
x86 Linux.

llvm-svn: 26038

llvm-svn: 26037

is just as efficient as MVIZ and is also more general.

Fix a few minor bugs introduced in recent patches

llvm-svn: 26036

mask.  This allows the code to be simpler and more efficient.

Also, generalize some of the cases in MVIZ a bit, making it slightly more aggressive.

llvm-svn: 26035

llvm-svn: 26034

'demanded bits', inspired by Nate's work in the dag combiner.  This isn't
complete, but needs to unrelated instcombiner changes to continue.

llvm-svn: 26033

therefore the function being called must be a main() returning an int.  The
consequences when these assumptions are false are not good, so don't assume
them.

llvm-svn: 26031

interpretation has begun.  The JIT already handles this situation correctly, and
the interpreter can already handle new functions being added.

llvm-svn: 26030

llvm-svn: 26027

printOperand instead.

llvm-svn: 26025

llvm-svn: 26022

llvm-svn: 26021

llvm-svn: 26019

llvm-svn: 26018

llvm-svn: 26017

llvm-svn: 26016

llvm-svn: 26015

- Manually select SDOperand's returned by TryFoldLoad which make up the
  load address.

llvm-svn: 26012