llvm-svn: 19635

llvm-svn: 19634

int %foo(int %X) {
        %T = add int %X, 13
        %S = mul int %T, 3
        ret int %S
}

as this:

        mov %ECX, DWORD PTR [%ESP + 4]
        lea %EAX, DWORD PTR [%ECX + 2*%ECX + 39]
        ret

instead of this:

        mov %ECX, DWORD PTR [%ESP + 4]
        mov %EAX, %ECX
        add %EAX, 13
        imul %EAX, %EAX, 3
        ret

llvm-svn: 19633

llvm-svn: 19632

Do not fold a load into an operation if it will induce a cycle in the DAG.

Repeat after me: dAg.

llvm-svn: 19631

llvm-svn: 19630

useness.

llvm-svn: 19629

Disable the xform for < > cases.  It turns out that the following is being
miscompiled:

bool %test(sbyte %S) {
        %T = cast sbyte %S to uint
        %V = setgt uint %T, 255
        ret bool %V
}

llvm-svn: 19628

llvm-svn: 19627

The comparison will probably be folded, so this is not ok to do.
This fixed 197.parser.

llvm-svn: 19624

llvm-svn: 19623

of the bytereg.  This fixes yacr2, 300.twolf and probably others.

llvm-svn: 19622

llvm-svn: 19621

If we emit a load because we followed a token chain to get to it, try to
fold it into its single user if possible.

llvm-svn: 19620

llvm-svn: 19619

Add fields to hold the result type of setcc operations and shift amounts.

llvm-svn: 19618

llvm-svn: 19617

llvm-svn: 19616

llvm-svn: 19615

* Remove custom promotion for bool and byte select ops.  Legalize now
  promotes them for us.
* Allow folding ConstantPoolIndexes into EXTLOAD's, useful for float immediates.
* Declare which operations are not supported better.
* Add some hacky code for TRUNCSTORE to pretend that we have truncstore
  for i16 types.  This is useful for testing promotion code because I can
  just remove 16-bit registers all together and verify that programs work.

llvm-svn: 19614

track of how to deal with it, and provide the target with a hook that they
can use to legalize arbitrary operations in arbitrary ways.

Implement custom lowering for a couple of ops, implement promotion for select
operations (which x86 needs).

llvm-svn: 19613

llvm-svn: 19612

llvm-svn: 19611

llvm-svn: 19610

track of how to deal with it, and provide the target with a hook that they
can use to legalize arbitrary operations in arbitrary ways.

llvm-svn: 19609

* the dist-clean target no longer implies a check

llvm-svn: 19608

a symbolic link making the autoconf name for the directory (LLVM_OBJ_ROOT)
and the "make" name for the directory (PROJ_OBJ_ROOT) different.

llvm-svn: 19607

llvm-svn: 19606

llvm-svn: 19605

llvm-svn: 19604

llvm-svn: 19603

(RogueWave). These are implemented in rw/stdex/hash_map.h and
rw/stdex/hash_set.h on HP/UX.

llvm-svn: 19600

llvm-svn: 19599

llvm-svn: 19598

llvm-svn: 19597

llvm-svn: 19596

llvm-svn: 19595

llvm-svn: 19594

llvm-svn: 19592

llvm-svn: 19591