Fix bug: 2002-12-05-MissedConstProp.ll pointed out by Casey Carter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4935 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase pointed out by Casey Carter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4934 91177308-0d34-0410-b5e6-96231b3b80d8

Cute bug fix: when moving links from N to this, some links could have
been missed if node *this got merged away due to recursive merging!
Also, links were not moved correctly if a node is collapsed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4933 91177308-0d34-0410-b5e6-96231b3b80d8

Target/X86/Printer.cpp: Add sizePtr function, and use it instead of
 " <SIZE> PTR " string when emitting assembly.

Target/X86/X86InstrInfo.def: Tidy up a bit:
 Squashed everything down to 118 chars wide, wrapping lines so that
 comment is at the same point on each line. Rename "NoImpRegs" as
 "NoIR". (most instructions have NoImpRegs twice on a line, so this
 saves 10 columns).

 Also, annotate various instructions with flags for size of memory operand.
  (MemArg16, MemArg32, MemArg64, etc.)

Target/X86/X86InstrInfo.h: Define flags for size of memory operand.
 (MemArg16, MemArg32, MemArg64, etc.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4932 91177308-0d34-0410-b5e6-96231b3b80d8

Return 0 to make it into a fully-functioning "Hello, World!" test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4931 91177308-0d34-0410-b5e6-96231b3b80d8

Added code generation for function prologues and epilogues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4930 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented functions for emitting prologues and epilogues;
removed EBP from the list of callee-saved registers (it isn't one).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4929 91177308-0d34-0410-b5e6-96231b3b80d8

Added push and pop instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4928 91177308-0d34-0410-b5e6-96231b3b80d8

Added prototypes for emitting prologue and epilogue for function code
generation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4927 91177308-0d34-0410-b5e6-96231b3b80d8

Fix testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4926 91177308-0d34-0410-b5e6-96231b3b80d8

Fix handling of function calls that return void

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4925 91177308-0d34-0410-b5e6-96231b3b80d8

Implement initial support for return values from call instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4924 91177308-0d34-0410-b5e6-96231b3b80d8

Fun arithmetic with iterators aimed at fixing a bug: inserting instructions
after the *current* instruction while keeping the iterator in the same
'logical' place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4923 91177308-0d34-0410-b5e6-96231b3b80d8

Adjust the stack pointer after a function call, proportional to the number of
arguments pushed onto the stack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4922 91177308-0d34-0410-b5e6-96231b3b80d8

Added instructions to add/subtract imm32 to/from a reg32.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4921 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4920 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bogus assertion failures

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4919 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid bad assertion

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4918 91177308-0d34-0410-b5e6-96231b3b80d8

Remove think-o assertion

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4917 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid crashing on Arguments, just silently miscompile

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4916 91177308-0d34-0410-b5e6-96231b3b80d8

Add main functions to benchmarks

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4915 91177308-0d34-0410-b5e6-96231b3b80d8

storeReg2RegOffset() and loadRegOffset2Reg() now take the iterator by value
instead of by reference, since they return the modified iterator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4914 91177308-0d34-0410-b5e6-96231b3b80d8

On `make clean', kill the core files produced, which are of the form:
core.### where ### is the process ID. We use core.[0-9][0-9]* to avoid killing
core.c, core.cpp, and core.h files which may be part of benchmarks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4913 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4912 91177308-0d34-0410-b5e6-96231b3b80d8

Moved buildReg2RegClassMap() into from X86RegisterInfo to MRegisterInfo, since
it is target-independent.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4911 91177308-0d34-0410-b5e6-96231b3b80d8

Add a "Lazy Function Resolution in Jello" section
Remove some todo's

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4910 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug I introduced in a previous change

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4909 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for global value references

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4908 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for referencing global variables/functions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4907 91177308-0d34-0410-b5e6-96231b3b80d8

Print out direct global references

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4906 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for direct global references

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4905 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of global var support code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4904 91177308-0d34-0410-b5e6-96231b3b80d8

Implement simple global variable support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4903 91177308-0d34-0410-b5e6-96231b3b80d8

Implement external function support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4902 91177308-0d34-0410-b5e6-96231b3b80d8

Expose target data through a method for uniformity

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4901 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of Unresolved function fault handler

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4900 91177308-0d34-0410-b5e6-96231b3b80d8

Implement lazy resolution of function calls

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4899 91177308-0d34-0410-b5e6-96231b3b80d8

This should fix the bug seen with some registers not being allocated
correctly: skipping instructions by incorrectly incrementing the pointer.

Also adds support for building a reg-to-regclass map, and splits the function
for saving register to stack into two, one suitable for virtual registers
(which also assigns it a physical register) and one for simply storing back
physical registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4898 91177308-0d34-0410-b5e6-96231b3b80d8

Added support for callee- and caller-save registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4897 91177308-0d34-0410-b5e6-96231b3b80d8

RegisterInfo now supports handing out caller- and callee-save registers, as
well as building a map from a physical register to its register class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4896 91177308-0d34-0410-b5e6-96231b3b80d8

Fix broken ret opcode, grr...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4895 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of virtual machine implementation.
We can now run very trivial test cases

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4894 91177308-0d34-0410-b5e6-96231b3b80d8

Checkin debug implementation of MCE

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4893 91177308-0d34-0410-b5e6-96231b3b80d8

Add virtual dtor, expose a debug impl

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4892 91177308-0d34-0410-b5e6-96231b3b80d8

Fix instsel for calls

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4891 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for call instruction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4890 91177308-0d34-0410-b5e6-96231b3b80d8

Standard hello-world test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4889 91177308-0d34-0410-b5e6-96231b3b80d8

Add code that can be used for debugging

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4888 91177308-0d34-0410-b5e6-96231b3b80d8

Disable timing of bytecode loader

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4887 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4886 91177308-0d34-0410-b5e6-96231b3b80d8

Fix big bug introduced with symbol table changes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4885 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4884 91177308-0d34-0410-b5e6-96231b3b80d8

brg

Add support for cast ... to bool in visitCastInst (it's a start, anyways...)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4883 91177308-0d34-0410-b5e6-96231b3b80d8

Split the machine code emitter completely out of the printer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4882 91177308-0d34-0410-b5e6-96231b3b80d8

Final tweak to printer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4881 91177308-0d34-0410-b5e6-96231b3b80d8

Implement trivially simple debugger for MachineCodeEmitter interface

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4880 91177308-0d34-0410-b5e6-96231b3b80d8

Continue implementing field initializers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4879 91177308-0d34-0410-b5e6-96231b3b80d8

Don't delete temporary files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4878 91177308-0d34-0410-b5e6-96231b3b80d8

* Move information about Implicit Defs/Uses into X86InstrInfo.def.
* Expose information about implicit defs/uses of register through the
  MachineInstrInfo.h file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4877 91177308-0d34-0410-b5e6-96231b3b80d8

Initialize implicit uses/defs fields for sparc backend to empty list

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4876 91177308-0d34-0410-b5e6-96231b3b80d8

Add entries to track information about implicit uses and definitions of
the instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4875 91177308-0d34-0410-b5e6-96231b3b80d8

brg

X86Implicit.cpp, X86Implicit.h: New files.
InstSelectSimple.cpp: Add some clarifications in visitCallInst comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4874 91177308-0d34-0410-b5e6-96231b3b80d8

More support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4873 91177308-0d34-0410-b5e6-96231b3b80d8

More support for machine code emission: raw instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4872 91177308-0d34-0410-b5e6-96231b3b80d8

Expose explicit type

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4871 91177308-0d34-0410-b5e6-96231b3b80d8

Start implementing MachineCodeEmitter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4870 91177308-0d34-0410-b5e6-96231b3b80d8

Start adding to the meat of MachineCodeEmitter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4869 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate OtherFrm

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4868 91177308-0d34-0410-b5e6-96231b3b80d8

Remove comment
Remove handling of OtherFrm

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4867 91177308-0d34-0410-b5e6-96231b3b80d8

Initial support for machine code emission

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4866 91177308-0d34-0410-b5e6-96231b3b80d8

Add initial support for machine code emission

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4865 91177308-0d34-0410-b5e6-96231b3b80d8

Initial version of MachineCodeEmitter interface: empty

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4864 91177308-0d34-0410-b5e6-96231b3b80d8

The hopefully final version of addPassesToEmitMachineCode which does not
have any question about ownership

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4863 91177308-0d34-0410-b5e6-96231b3b80d8

Ignore generated files gram.tab.c and gram.tab.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4862 91177308-0d34-0410-b5e6-96231b3b80d8

Ignore generated files Lexer.cpp and llvmAsmParser.*

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4861 91177308-0d34-0410-b5e6-96231b3b80d8

Ignore generated files FileLexer.* and FileParser.*

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4860 91177308-0d34-0410-b5e6-96231b3b80d8

Add comment about ownership semantics

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4859 91177308-0d34-0410-b5e6-96231b3b80d8

* Abstracted out stack space allocation into its own function
* Added saving of register values to the stack

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4858 91177308-0d34-0410-b5e6-96231b3b80d8

Fix order of operands on a store from reg to [reg+offset].

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4857 91177308-0d34-0410-b5e6-96231b3b80d8

Add stub to emit machine code for JIT

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4856 91177308-0d34-0410-b5e6-96231b3b80d8

Continued support for field intitializers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4855 91177308-0d34-0410-b5e6-96231b3b80d8

Continued support for field initializer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4854 91177308-0d34-0410-b5e6-96231b3b80d8

Continued support for Field Initializer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4853 91177308-0d34-0410-b5e6-96231b3b80d8

Adjustments due to new FieldInit stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4852 91177308-0d34-0410-b5e6-96231b3b80d8

Add comments, factor out common code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4851 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for field exprs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4850 91177308-0d34-0410-b5e6-96231b3b80d8

* Move BitsInit::resolveReferences up with the rest of BitsInit code
* Initial support for field expressions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4849 91177308-0d34-0410-b5e6-96231b3b80d8

Initial support for Field Expressions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4848 91177308-0d34-0410-b5e6-96231b3b80d8

Add correct dependency

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4847 91177308-0d34-0410-b5e6-96231b3b80d8

Split up targets

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4846 91177308-0d34-0410-b5e6-96231b3b80d8

Add comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4845 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure to build lib/Support before the utilities, then use the new
makefile in utils to build the utilities

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4844 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of TableGen utility

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4843 91177308-0d34-0410-b5e6-96231b3b80d8

Add makefile to build subdirs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4842 91177308-0d34-0410-b5e6-96231b3b80d8

Add rawfrm flags

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4841 91177308-0d34-0410-b5e6-96231b3b80d8

Don't add implicit regs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4840 91177308-0d34-0410-b5e6-96231b3b80d8

brg

InstSelectSimple.cpp: Refactor out conversion of byte, short -> int
  from visitReturnInst() to new method, promote32().
 Use it in both visitReturnInst() and visitCallInst().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4839 91177308-0d34-0410-b5e6-96231b3b80d8

brg

InstSelectSimple.cpp: First draft of visitCallInst method, handling
 int/float args.
X86InstrInfo.def: Add entries for CALL with 32-bit pc relative arg, and
 PUSH with 32-bit reg arg.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4838 91177308-0d34-0410-b5e6-96231b3b80d8

Several fixes:
(1) Applied patch from Casey to implement iterator::operator= correctly:
    it should use a pointer, not a reference.
(2) Added operators == and !=, and method all().
(3) Important bug fix: excess bits need to be ignored in operations
    like ==, count(), and all().  We do this by ensuring excess bits
    in the last bitset are always 0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4837 91177308-0d34-0410-b5e6-96231b3b80d8

Fix logical error in TD pass: we should clear Mod/Ref bits of each caller
before inlining their graphs into a function.  To support this,
added flags to CloneFlags to strip/keep Mod/Ref bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4836 91177308-0d34-0410-b5e6-96231b3b80d8