llvm-svn: 17057

llvm-svn: 17051

llvm-svn: 17050

now compile:

'foo() {}' into "ret" instead of "mov EAX, 0; ret"

llvm-svn: 17049

llvm-svn: 17048

llvm-svn: 17031

llvm-svn: 17030

case:

int C[100];
int foo() {
  return C[4];
}

We now codegen:

foo:
        mov %EAX, DWORD PTR [C + 16]
        ret

instead of:

foo:
        mov %EAX, OFFSET C
        mov %EAX, DWORD PTR [%EAX + 16]
        ret

Other impressive features may be coming later.

This patch is contributed by Jeff Cohen!

llvm-svn: 17011

contributed by Jeff Cohen!

llvm-svn: 17010

constant displacements from global variables.  Patch by Jeff Cohen!

llvm-svn: 17009

by Jeff Cohen!

llvm-svn: 17008

This transformation fires a few dozen times across the testsuite.

For example, int test2(int X) { return X ^ 0x0FF00FF0; }
Old:
_test2:
        lis r2, 4080
        ori r2, r2, 4080
        xor r3, r3, r2
        blr

New:
_test2:
        xoris r3, r3, 4080
        xori r3, r3, 4080
        blr

llvm-svn: 17004

llvm-svn: 17003

llvm-svn: 17002

llvm-svn: 17001

llvm-svn: 17000

* In the F3_3 class, remove mention of asi because it's not part of the format

llvm-svn: 16999

llvm-svn: 16996

adding emitFPToIntegerCast.

llvm-svn: 16995

Update list of currently failing tests.
ADJCALLSTACK* support is done.

llvm-svn: 16994

  addPassesToEmitMachineCode()
* Add support for registers and constants in getMachineOpValue()

This enables running "int main() { ret 0 }" via the PowerPC JIT.

llvm-svn: 16983

* Add implementation of getMachineOpValue() for generated code emitter
* Convert assert()s in unimplemented functions to abort()s so that non-debug
  builds fail predictably
* Add file header comments

llvm-svn: 16981

  and 64-bit code emitters that cannot share code unless we use virtual
  functions
* Identify components being built by tablegen with more detail by assigning them
  to PowerPC, PPC32, or PPC64 more specifically; also avoids seeing 'building
  PowerPC XYZ' messages twice, where one is for PPC32 and one for PPC64

llvm-svn: 16980

Checking in code that works on my simple test case. However, there is still a bug with branches that I need to fix.

llvm-svn: 16979

the instruction binary format, all others are simply operands and should not
have the `field' label

llvm-svn: 16978

llvm-svn: 16977

llvm-svn: 16976

llvm-svn: 16950

llvm-svn: 16917

llvm-svn: 16905

llvm-svn: 16904

llvm-svn: 16903

llvm-svn: 16902

llvm-svn: 16898

llvm-svn: 16897

llvm-svn: 16893

returns 'bool' type.

llvm-svn: 16884

Wrap a long comment line.

llvm-svn: 16883

argument values passed in (so they're not dead until *after* the call),
and callees are free to modify those registers.

llvm-svn: 16882

Deal with allocating stack space for outgoing args and copying them into the
correct stack slots (at least, we can copy <=32-bit int args).
We now correctly generate ADJCALLSTACK* instructions.

llvm-svn: 16881