llvm-svn: 20535

This allows the alpha backend to compile:

bool %test(uint %P) {
        %c = seteq uint %P, 0
        ret bool %c
}

into:

test:
        ldgp $29, 0($27)
        ZAP $16,240,$0
        CMPEQ $0,0,$0
        AND $0,1,$0
        ret $31,($26),1

instead of:

test:
        ldgp $29, 0($27)
        ZAP $16,240,$0
        ldiq $1,0
        ZAP $1,240,$1
        CMPEQ $0,$1,$0
        AND $0,1,$0
        ret $31,($26),1

... and fixes PR534.

llvm-svn: 20534

llvm-svn: 20533

that Alkis found with Java, thanks Alkis!

llvm-svn: 20531

llvm-svn: 20530

Patch contributed by Vladimir Merzliakov.

llvm-svn: 20529

llvm-svn: 20528

llvm-svn: 20527

llvm-svn: 20526

llvm-svn: 20525

llvm-svn: 20523

to cygwin)

llvm-svn: 20520

struct types.  This fixes Regression/CodeGen/CBackend/2005-03-08-RecursiveTypeCrash.ll,
a crash on Java output that Alkis reported.

llvm-svn: 20519

llvm-svn: 20518

llvm-svn: 20516

llvm-svn: 20515

llvm-svn: 20514

Vladimir Merzliakov for the patch!

llvm-svn: 20513

llvm-svn: 20512

llvm-svn: 20511

from 10.27s to 9.57s with the CBE.

llvm-svn: 20508

llvm-svn: 20507

llvm-svn: 20506

hopefully not breaking too many other things.

llvm-svn: 20505

llvm-svn: 20504

llvm-svn: 20503

(3) Do not reduce element sizes of small power of two:

  char s[10];
  for (i)
    ...s[i] ...

when the indvar is not eliminable.

llvm-svn: 20502

llvm-svn: 20501

llvm-svn: 20500

(1) Allow loop invariant expressions to come before the induction variable (instead of just
constants):

   int x;
   for (i)
    ...a[x][i]

llvm-svn: 20499

Allow operands after the induction variable (no restrictions):

  int x;
  for (i)
   j = .....
   a[i][x][j]

llvm-svn: 20498

llvm-svn: 20497

llvm-svn: 20496

llvm-svn: 20495

llvm-svn: 20494

a nested loop.  This fixes Transforms/LoopUnroll/2005-03-06-BadLoopInfoUpdate.ll
and PR532

llvm-svn: 20493

llvm-svn: 20492

llvm-svn: 20491

llvm-svn: 20490

not call insert(Value *Val), remove(Value* Val), or
changeName(Value *V, const std::string &Name)

llvm-svn: 20488