Dummy block is an empty block with no predecessors.

llvm-svn: 42451

support any sort of expr, add a new EmitAnyExpr routine.

llvm-svn: 41660

llvm-svn: 41656

to their corresponding library routines (e.g. isinf).  This allows us to handle
all the stuff in macos math.h, and other stuff as it's added to *Builtins.def.

llvm-svn: 41634

llvm-svn: 41633

llvm-svn: 41472

llvm-svn: 41470

llvm-svn: 41469

llvm-svn: 41468

llvm-svn: 41447

llvm-svn: 41445

llvm-svn: 41444

llvm-svn: 41438

llvm-svn: 41433

llvm-svn: 41418

This patch temporarily breaks compound assignment operators, but greatly simplifies many
things.

llvm-svn: 41355

llvm-svn: 41344

llvm-svn: 41238

llvm-svn: 41236

llvm-svn: 41231

This means that we get rid of tons of intermediate allocas.  For
example:

void foo(double _Complex a, double _Complex b) {
   a = b+a+a;
}

this used to have 4 temporary allocas, now it has zero of them.
This also simplifies the individual visitor methods because they
now can all operate on real/imag pairs instead of having to 
load/store all over the place.

llvm-svn: 41217

llvm-svn: 41215

details in its own file.

llvm-svn: 41213

llvm-svn: 41202

llvm-svn: 41188

aggregate value and scalar expression computation are very different, this
gets them away from each other.  This causes a temporary regression on some
complex number examples.

llvm-svn: 41014

EmitUsualArithmeticConversions.

llvm-svn: 40931

EmitExprWithUsualUnaryConversions.

llvm-svn: 40929

struct X { int A; };

void foo() {
  struct X s;
  int i;
  i = __builtin_choose_expr(0, s, i);
}

compiles to:

        %tmp = load i32* %i             ; <i32> [#uses=1]
        store i32 %tmp, i32* %i

wow :)

llvm-svn: 40801

llvm-svn: 40788

Rename AddrLabel and OCUVectorComponent -> AddrLabelExpr and OCUVectorElementExpr respectively.  This is for consistency with other expr nodes end with *Expr.

llvm-svn: 40785

    vec2.x = f;

llvm-svn: 40781

llvm-svn: 40780

like this:

typedef __attribute__(( ocu_vector_type(4) )) float float4;
float4 test1(float4 V) {
  return V.wzyx+V;
}

to:
_test1:
        pshufd  $27, %xmm0, %xmm1
        addps   %xmm0, %xmm1
        movaps  %xmm1, %xmm0
        ret

and:

_test1:
        mfspr r2, 256
        oris r3, r2, 4096
        mtspr 256, r3
        li r3, lo16(LCPI1_0)
        lis r4, ha16(LCPI1_0)
        lvx v3, r4, r3
        vperm v3, v2, v2, v3
        vaddfp v2, v3, v2
        mtspr 256, r2
        blr 

llvm-svn: 40771

We can now codegen:

  vec4.xy;

as nothing!

llvm-svn: 40769

llvm-svn: 40162

llvm-svn: 40009

llvm-svn: 39927

llvm-svn: 39831

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