this LLVM function:

int %foo() {
        ret int cast (int** getelementptr (int** null, int 1) to int)
}

into:

foo:
        mov %EAX, 0
        lea %EAX, DWORD PTR [%EAX + 4]
        ret

now we compile it into:

foo:
        mov %EAX, 4
        ret

This sequence is frequently generated by the MSIL front-end, and soon the malloc lowering pass and
Java front-ends as well..

-Chris

llvm-svn: 14834

llvm-svn: 14822

llvm-svn: 14819

* Clarify variable name (StoreInst SI instead of LI)

llvm-svn: 14818

llvm-svn: 14806

* Correctly load FP constants from the constant pool, should be refactored

llvm-svn: 14799

llvm-svn: 14782

llvm-svn: 14781

llvm-svn: 14780

llvm-svn: 14759

The shared command line options are now in a header that makes sense.

llvm-svn: 14757

The shared command line options are now in a header that makes sense.

llvm-svn: 14756

llvm-svn: 14755

I told you this file wasn't useless :)

llvm-svn: 14749

llvm-svn: 14747

llvm-svn: 14745

llvm-svn: 14744

will grow in time.

llvm-svn: 14743

  The large diff is because of indentation of a whole region
* Fix querying predecessor blocks in SelectPHINodes(), thanks to Brian (v8)
* Add support for external functions malloc() and free()
* Fix some code indentation

Remember, kids: It's not plagiarism if you "creatively borrow" from your
sources.  It's called "research"!

llvm-svn: 14723

llvm-svn: 14722

llvm-svn: 14703

* Non-const FP values must be loaded into int regs (for vararg fns) via memory

llvm-svn: 14701

* Load FP values into int regs as well for vararg functions; without memory ops!

llvm-svn: 14700

* Add suport for printing out references to constant pool indices

llvm-svn: 14699

llvm-svn: 14687

until the next cycle, and there's no interlock, so they effectively
have a delay slot.

llvm-svn: 14686

llvm-svn: 14685

Fix typo in comment.

llvm-svn: 14684

the top and bottom halves backwards...how embarrassing.
Support 'cast long to long' and other similar no-op casts to long.
Support 'ret long'.

llvm-svn: 14683

llvm-svn: 14681

* Tabs to spaces

llvm-svn: 14673

* Tabs to spaces

llvm-svn: 14672

llvm-svn: 14670

* Make visitSetCondInst() share condition-generating code with EmitComparison()
* There are 13 FPRs for function-passing arguments, not 8
* Do not rely on registers being sequential, use an array lookup
* In unimplemented switch cases, send an error and abort instead of silent
  fall-through
* Add doInitialization() for adding function prototypes for external math fns
* Minor changes: fix indentation, spacing, code clarity

llvm-svn: 14653

llvm-svn: 14652

* If SetCondInst is folded into BranchInst (and it is the only user), do not
  emit code for SetCondInst
* Fix assembly opcodes in comments in visitSetCondInst()
* Fix codegen of conditional branches

llvm-svn: 14643

llvm-svn: 14625

llvm-svn: 14622

llvm-svn: 14581

llvm-svn: 14570