Remove code (last hunk) that miscompiled immediate and's, such as
  and uint %tmp.30, 4294958079

into

 andi. r8, r8, 56319
 andis. r8, r8, 65535

instead of:

 li r9, -9217
 and r8, r8, r9

The first always generates zero.

This fixes espresso.

llvm-svn: 23155

fixes fourinarow

llvm-svn: 23153

fixes fhourstones

llvm-svn: 23152

to SHIFT_PARTS nodes

llvm-svn: 23151

llvm-svn: 23150

at least tends to expose problems elsewhere.

llvm-svn: 23149

llvm-svn: 23148

them.  This allows for elminination of redundant extends in the entry
blocks of functions on PowerPC.

Add support for i32 x i32 -> i64 multiplies, by recognizing when the inputs
to ISD::MUL in ExpandOp are actually just extended i32 values and not real
i64 values.  this allows us to codegen

int mulhs(int a, int b) { return ((long long)a * b) >> 32; }
as:
_mulhs:
        mulhw r3, r4, r3
        blr

instead of:
_mulhs:
        mulhwu r2, r4, r3
        srawi r5, r3, 31
        mullw r5, r4, r5
        add r2, r2, r5
        srawi r4, r4, 31
        mullw r3, r4, r3
        add r3, r2, r3
        blr

with a similar improvement on x86.

llvm-svn: 23147

llvm-svn: 23145

llvm-svn: 23144

linking them to calls when appropriate, this prevents the scheduler from
pulling these copies away from the call.

This fixes Ptrdist/yacr2

llvm-svn: 23143

fixes MediaBench/toast with the dag selector

llvm-svn: 23141

which I failed to include when I moved the code over.  This fixes
MallocBench/gs.

llvm-svn: 23140

STOREs, know the right type to store.

llvm-svn: 23139

no xcode, this is not right:

   if (!foo) break;
     X;

llvm-svn: 23138

llvm-svn: 23137

llvm-svn: 23136

token chains first.  For this C function:

int test() {
  int i;
  for (i = 0; i < 100000; ++i)
    foo();
}

Instead of emitting this (condition before call)

.LBB_test_1:    ; no_exit
        addi r30, r30, 1
        lis r2, 1
        ori r2, r2, 34464
        cmpw cr2, r30, r2
        bl L_foo$stub
        bne cr2, .LBB_test_1    ; no_exit

Emit this:

.LBB_test_1:    ; no_exit
        bl L_foo$stub
        addi r30, r30, 1
        lis r2, 1
        ori r2, r2, 34464
        cmpw cr0, r30, r2
        bne cr0, .LBB_test_1    ; no_exit

Which makes it so we don't have to save/restore cr2 in the prolog/epilog of
the function.

This also makes the code much more similar to what the pattern isel produces.

llvm-svn: 23135

This fixes voronoi and bh in Olden, allowing all of olden to pass!

llvm-svn: 23133

llvm-svn: 23131

llvm-svn: 23130

llvm-svn: 23129

llvm-svn: 23128

llvm-svn: 23127

llvm-svn: 23126

Olden/msFix order of operands for copytoreg node when emitting calls.  This fixes
Olden/mstt.

llvm-svn: 23125

Olden/bisort among others.

llvm-svn: 23124

llvm-svn: 23123

llvm-svn: 23122

llvm-svn: 23121

llvm-svn: 23120

llvm-svn: 23119

them more clearly.

llvm-svn: 23118

These changes modify the makefiles so that the output of flex and bison are
placed in the SRC directory, not the OBJ directory. It is intended that they
be checked in as any other LLVM source so that platforms without convenient
access to flex/bison can be compiled. From now on, if you change a .y or
.l file you *must* also commit the generated .cpp and .h files.

llvm-svn: 23115

llvm-svn: 23114

llvm-svn: 23113

This fixes: UnitTests/2005-07-17-INT-To-FP.c

llvm-svn: 23112

llvm-svn: 23111

llvm-svn: 23110

changes the code generated for:

short %test(short %A) {
  %B = xor short %A, -32768
  ret short %B
}

to:

_test:
        xori r2, r3, 32768
        xoris r2, r2, 65535
        extsh r3, r2
        blr

instead of:

_test:
        rlwinm r2, r3, 0, 16, 31
        xori r2, r3, 32768
        xoris r2, r2, 65535
        extsh r3, r2
        blr

llvm-svn: 23109