We can now codegen:

  vec4.xy;

as nothing!

llvm-svn: 40769

llvm-svn: 40761

llvm-svn: 40665

llvm-svn: 40162

llvm-svn: 40037

llvm-svn: 40009

llvm-svn: 39927

codegen to compile:

int test(int *A, int *B) {
  return A-B;
}

into:

_test:
        movl 4(%esp), %eax
        subl 8(%esp), %eax
        sarl $2, %eax
        ret

instead of:

_test:
        movl 4(%esp), %eax
        subl 8(%esp), %eax
        movl %eax, %ecx
        sarl $31, %ecx
        shrl $30, %ecx
        addl %ecx, %eax
        sarl $2, %eax
        ret

llvm-svn: 39902

llvm-svn: 39884

llvm-svn: 39858

compute type alignment.  This info is needed for struct layout.

llvm-svn: 39850

vars.  Approach suggested by Keith.

llvm-svn: 39849

llvm-svn: 39848

llvm-svn: 39847

llvm-svn: 39841

where ASTContext can manage caches for struct layout, etc.

llvm-svn: 39835

llvm-svn: 39831

llvm-svn: 39824

Both in one patch, and the test case that Chris didn't commit last
time is in there too...

I'll split the patch up if somebody wants it split."

Patch by Keith Bauer.

llvm-svn: 39796

llvm-svn: 39795

I've added a tests/CodeGen directory, and a test for this case that
used to fail and now passes."

Patch by Keith Bauer

llvm-svn: 39794

Keith Bauer.

llvm-svn: 39793

Benoit Boissinot!

llvm-svn: 39780

llvm-svn: 39771

llvm-svn: 39765

Not having this prevented promoting float arguments to double when passed
into printf, for example.

llvm-svn: 39727

float4 test(void);
float test2() {
  return test()[1];
}

llvm-svn: 39725

llvm-svn: 39724

llvm-svn: 39721

I expected :)

llvm-svn: 39720

llvm-svn: 39718

llvm-svn: 39713

llvm-svn: 39712

llvm-svn: 39711

codegen support for +=.

llvm-svn: 39710

llvm-svn: 39694

llvm-svn: 39693

llvm-svn: 39674

of complex.  We now produce optimal code for:

void test(_Complex float *Y) {
  *Y = *Y + *Y;
}

$ clang -emit-llvm cg.c | llvm-as | opt -std-compile-opts | llc -march=x86-64
...
_test:
        movss (%rdi), %xmm0
        addss %xmm0, %xmm0
        movss 4(%rdi), %xmm1
        movss %xmm0, (%rdi)
        addss %xmm1, %xmm1
        movss %xmm1, 4(%rdi)
        ret

llvm-svn: 39673

types.

llvm-svn: 39672