make BB labels be exported for debuging, add fp negation optimization, further pecimise the FP instructions

llvm-svn: 20332

llvm-svn: 20306

Only print out machine instructions before modulo scheduling if we are actually doing modulo scheduling! :)

llvm-svn: 20292

llvm-svn: 20290

llvm-svn: 20284

llvm-svn: 20280

llvm-svn: 20278

llvm-svn: 20273

llvm-svn: 20264

llvm-svn: 20232

llvm-svn: 20207

to save and restore the LR register on entry and exit of a leaf function
that needed to access globals or the constant pool.  This should hopefully
fix oscar from sending the PPC tester spinning out of control.

llvm-svn: 20197

void %test(int** %P) {
  %A = volatile load int** %P
  ret void
}

void %test2(int*** %Q) {
  %P = load int*** %Q
  volatile store int** %P, int*** %Q
  ret void
}

instead of emitting:

void test(int **l1_P) {
  int *l2_A;

  l2_A = (int **((volatile int **)l1_P));
  return;
}
void test2(int ***l2_Q) {
  int **l1_P;

  l1_P = *l2_Q;
  *((volatile int ***)l2_Q) = l1_P;
  return;
}

... which is loading/storing volatile pointers, not through volatile pointers,
emit this (which is right):

void test(int **l1_P) {
  int *l3_A;

  l3_A = *((int * volatile*)l1_P);
  return;
}
void test2(int ***l2_Q) {
  int **l1_P;

  l1_P = *l2_Q;
  *((int ** volatile*)l2_Q) = l1_P;
  return;
}

llvm-svn: 20191

llvm-svn: 20179

Volatile loads and stores need to emit volatile pointer operations in C.

llvm-svn: 20177

llvm-svn: 20172

llvm-svn: 20143

llvm-svn: 20142

llvm-svn: 20141

llvm-svn: 20137

llvm-svn: 20110

Fixed bug in graph so that phi ite diff edges are added.

llvm-svn: 20108

llvm-svn: 20107

so, if you beat on it, you too can talk emacs into having a sane indenting policy...  Also, optimize many function calls with pc-relative calls (partial prologue skipping for that case coming soon), try to fix the random jumps to strange places problem by pesimizing div et. al. register usage and fixing up GP before using, some calling convention tweaks, and make frame pointer unallocatable (not strickly necessary, but let's go for correctness first)

llvm-svn: 20106

llvm-svn: 20105

* Align comments with tablegen elements

llvm-svn: 20103

llvm-svn: 20067

llvm-svn: 20066

llvm-svn: 20063

llvm-svn: 20062

llvm-svn: 20061

llvm-svn: 20060

llvm-svn: 20059

llvm-svn: 20058

llvm-svn: 20057

llvm-svn: 20056

llvm-svn: 20055

llvm-svn: 20053

llvm-svn: 20051

llvm-svn: 20050