add floating point registers
implement SINT_TO_FP

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30673 91177308-0d34-0410-b5e6-96231b3b80d8

Move CompileCommonOpts to the end of the list so that EXTRA_OPTIONS=-O0 will
override the optimization level.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30672 91177308-0d34-0410-b5e6-96231b3b80d8

Define this in the correct n/s

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30671 91177308-0d34-0410-b5e6-96231b3b80d8

Adjust this to the wonky syntax that GCC expects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30670 91177308-0d34-0410-b5e6-96231b3b80d8

Wrong directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30669 91177308-0d34-0410-b5e6-96231b3b80d8

Minor cleanups

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30668 91177308-0d34-0410-b5e6-96231b3b80d8

Now that ConstantBool::True/False are gone, we can modify Type.cpp to
eliminate its static dtors, without having code that depends on order of
initialization.  Eliminate static ctors/dtors from Type.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30667 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate ConstantBool::True and ConstantBool::False.  Instead, provide
ConstantBool::getTrue() and ConstantBool::getFalse().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30666 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate ConstantBool::True and ConstantBool::False.  Instead, provide
ConstantBool::getTrue() and ConstantBool::getFalse().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30665 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate ConstantBool::True and ConstantBool::False.  Instead, provideConstantBool::getTrue() and ConstantBool::getFalse().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30664 91177308-0d34-0410-b5e6-96231b3b80d8

update comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30663 91177308-0d34-0410-b5e6-96231b3b80d8

wrap long lines

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30662 91177308-0d34-0410-b5e6-96231b3b80d8

simplify code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30661 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify some code, reformat break's

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30660 91177308-0d34-0410-b5e6-96231b3b80d8

simplify code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30659 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify some code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30658 91177308-0d34-0410-b5e6-96231b3b80d8

Another attempt at making ArgPromotion smarter.  This patch no longer breaks Burg.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30657 91177308-0d34-0410-b5e6-96231b3b80d8

simplify code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30656 91177308-0d34-0410-b5e6-96231b3b80d8

simplify code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30655 91177308-0d34-0410-b5e6-96231b3b80d8

Use the -emit-llvm switch to generate LLVM assembly that can be parsed
by the test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30654 91177308-0d34-0410-b5e6-96231b3b80d8

Add a test case for PR902.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30653 91177308-0d34-0410-b5e6-96231b3b80d8

Shift amounts are always 32-bits, even in 64-bit mode.  This fixes
CodeGen/PowerPC/2006-09-28-shift_64.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30652 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30651 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR902:
Errors are generated with the YYERROR macro which can only be called from
a production (inside yyparse) because of the goto statement in the macro.
This lead to several situations where GEN_ERROR was not called but
GenerateError was used instead (because it doesn't use YYERROR). However,
in such situations, catching the error much later (e.g. at the end of
the production) is not sufficient because LLVM can assert on invalid data
before the end of the production is reached. The solution is to ensure that
the CHECK_FOR_ERROR macro (which invokes YYERROR if there's an error) is
used as soon as possible after a call to GenerateError has been made.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30650 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for PR924

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30649 91177308-0d34-0410-b5e6-96231b3b80d8

TargetRegisterClass specifies the desired spill alignment. However, it cannot be honored if stack alignment is smaller.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30648 91177308-0d34-0410-b5e6-96231b3b80d8

Fix search file for -release.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30647 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for -release-asserts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30646 91177308-0d34-0410-b5e6-96231b3b80d8

Provide a gdb usage fix provided by Zhongzing Xu.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30645 91177308-0d34-0410-b5e6-96231b3b80d8

"Once more into the breach, dear friends, once more, or fill the wall up
with our English dead."

No! Really! Serious this time...It was how the vreg uses were being
adjusted that was causing hte Olden tests to fail. I corrected this and
the Olden and Regression tests all passed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30644 91177308-0d34-0410-b5e6-96231b3b80d8

refactor critical edge breaking out into the SplitCritEdgesForPHIConstants method.
This is a baby step towards fixing PR925.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30643 91177308-0d34-0410-b5e6-96231b3b80d8

add a note about a general improvement to the code generator

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30642 91177308-0d34-0410-b5e6-96231b3b80d8

remove reference to dead method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30641 91177308-0d34-0410-b5e6-96231b3b80d8

remove dead method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30640 91177308-0d34-0410-b5e6-96231b3b80d8

Use the new ManagedStatic class to explicitly manage static variables, eliminating static ctors/dtors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30639 91177308-0d34-0410-b5e6-96231b3b80d8

new helper class to provide more explicit management of static ctor/dtors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30638 91177308-0d34-0410-b5e6-96231b3b80d8

re-re-revert this, back to the right revision.  It currently breaks bisort/mst
in olden among others.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30637 91177308-0d34-0410-b5e6-96231b3b80d8

PEI now place callee save spills closest to the address pointed to by the
incoming stack. This allows X86 backend to use push / pop in epilogue /
prologue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30636 91177308-0d34-0410-b5e6-96231b3b80d8

- Added a hook processFunctionBeforeCalleeSaveScn(). This is called by PEI just
before it determines which callee-save registers are to be spilled. This allows
the target to make changes such as forcing certain physical registers to be
spilled.
- Modified comments. It's important to note the order of registers in the array
returns by getCalleeSaveRegs() determines the order of callee save spill code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30635 91177308-0d34-0410-b5e6-96231b3b80d8

re-revert this patch, bisort and mst are still broken in Olden.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30634 91177308-0d34-0410-b5e6-96231b3b80d8

Reapplying this patch. With the newest commits, the error in Olden/bisort
has disappeared.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30633 91177308-0d34-0410-b5e6-96231b3b80d8

silence warnings in release build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30631 91177308-0d34-0410-b5e6-96231b3b80d8

Fix DFS walk.
Fix http://llvm.org/bugs/show_bug.cgi?id=923

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30630 91177308-0d34-0410-b5e6-96231b3b80d8

Temporarily revert this.  This breaks Olden/bisort on PPC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30628 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure C++ protection shows up in debug info

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30626 91177308-0d34-0410-b5e6-96231b3b80d8

This:
AggregateString += "\0\0";

Doesn't add two nuls to the AggregateString (for obvious reasons), which
broke the asmprinter when the first character of an asm string was not
literal text.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30625 91177308-0d34-0410-b5e6-96231b3b80d8

PR878: Instead of calculating the vreg to PHI use count everytime we get
a function, do it up front in linear time (going through all of the
instructions once). We create a map out of them. Then it's no problem to
use the information in it during elimination...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30624 91177308-0d34-0410-b5e6-96231b3b80d8

set DEBUG_TYPE right

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30623 91177308-0d34-0410-b5e6-96231b3b80d8

Add llvm.org/bugs/show_bug.cgi?id=923 test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30622 91177308-0d34-0410-b5e6-96231b3b80d8

Use abstract private/comment directives, to increase portability to ppc/linux

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30621 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for ${:private} which prints "L" on darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30620 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for ${:comment}, which expands to the current target's comment
character, and ${:uid} which expands to a unique ID for the MachineInstr.
More can be added if/when they are needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30619 91177308-0d34-0410-b5e6-96231b3b80d8

Actually, name the method PrintSpecial to match other stuff in AsmPrinter.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30618 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for ${:foo} syntax, where "foo" is passed into "printSpecial" and
has no associated operand.  This is useful for portably encoding stuff like
the comment character into an asm string.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30617 91177308-0d34-0410-b5e6-96231b3b80d8

Rename function. It's determining which callee-save registers to save.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30616 91177308-0d34-0410-b5e6-96231b3b80d8

Comments on JumpTableness

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30615 91177308-0d34-0410-b5e6-96231b3b80d8

Load chain check is not needed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30613 91177308-0d34-0410-b5e6-96231b3b80d8

Chain can be any operand

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30611 91177308-0d34-0410-b5e6-96231b3b80d8

Wrong size for load

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30610 91177308-0d34-0410-b5e6-96231b3b80d8

Can't move a load node if it's chain is not used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30609 91177308-0d34-0410-b5e6-96231b3b80d8

Various random and minor code cleanups.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30608 91177308-0d34-0410-b5e6-96231b3b80d8

test that the no_dead_strip directive is emitted on darwin-x86

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30607 91177308-0d34-0410-b5e6-96231b3b80d8

print the preds of each MBB

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30606 91177308-0d34-0410-b5e6-96231b3b80d8

Compile:
int x __attribute__((used));

to:

        .data
.comm _x,4              ; 'x'
        .no_dead_strip  _x

on both x86 and ppc darwin targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30605 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for targets that want to do something with the llvm.used list,
because they have an aggressive linker that does dead code stripping.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30604 91177308-0d34-0410-b5e6-96231b3b80d8

order this properly to avoid warnings in TargetAsmInfo.cpp.  Add a comment
in a format that matches every other ivars in this class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30603 91177308-0d34-0410-b5e6-96231b3b80d8

Accidental enable of bad code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30601 91177308-0d34-0410-b5e6-96231b3b80d8

Fix chain dropping in load and drop unused stores in ret blocks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30600 91177308-0d34-0410-b5e6-96231b3b80d8

Regression test for PR#922.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30599 91177308-0d34-0410-b5e6-96231b3b80d8

more notes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30598 91177308-0d34-0410-b5e6-96231b3b80d8

Core antialiasing for load and store.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30597 91177308-0d34-0410-b5e6-96231b3b80d8

Fix

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30596 91177308-0d34-0410-b5e6-96231b3b80d8

Fix jump tables to match gcc (and the ABI and whatnot)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30594 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for other relocation bases to jump tables, as well as custom asm directives

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30593 91177308-0d34-0410-b5e6-96231b3b80d8

basic jump table test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30592 91177308-0d34-0410-b5e6-96231b3b80d8

jump table note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30591 91177308-0d34-0410-b5e6-96231b3b80d8

PIC jump table entries are always 32-bit. This fixes PIC jump table support on X86-64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30590 91177308-0d34-0410-b5e6-96231b3b80d8

Enable 'predsimplify' optimization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30589 91177308-0d34-0410-b5e6-96231b3b80d8

Style changes only. Remove dead code, fix a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30588 91177308-0d34-0410-b5e6-96231b3b80d8

Be far more careful when splitting a loop header, either to form a preheader
or when splitting loops with a common header into multiple loops.  In particular
the old code would always insert the preheader before the old loop header.  This
is disasterous in cases where the loop hasn't been rotated.  For example, it can
produce code like:

        .. outside the loop...
        jmp LBB1_2      #bb13.outer
LBB1_1: #bb1
        movsd 8(%esp,%esi,8), %xmm1
        mulsd (%edi), %xmm1
        addsd %xmm0, %xmm1
        addl $24, %edi
        incl %esi
        jmp LBB1_3      #bb13
LBB1_2: #bb13.outer
        leal (%edx,%eax,8), %edi
        pxor %xmm1, %xmm1
        xorl %esi, %esi
LBB1_3: #bb13
        movapd %xmm1, %xmm0
        cmpl $4, %esi
        jl LBB1_1       #bb1

Note that the loop body is actually LBB1_1 + LBB1_3, which means that the
loop now contains an uncond branch WITHIN it to jump around the inserted
loop header (LBB1_2).  Doh.

This patch changes the preheader insertion code to insert it in the right
spot, producing this code:

        ... outside the loop, fall into the header ...
LBB1_1: #bb13.outer
        leal (%edx,%eax,8), %esi
        pxor %xmm0, %xmm0
        xorl %edi, %edi
        jmp LBB1_3      #bb13
LBB1_2: #bb1
        movsd 8(%esp,%edi,8), %xmm0
        mulsd (%esi), %xmm0
        addsd %xmm1, %xmm0
        addl $24, %esi
        incl %edi
LBB1_3: #bb13
        movapd %xmm0, %xmm1
        cmpl $4, %edi
        jl LBB1_2       #bb1

Totally crazy, no branch in the loop! :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30587 91177308-0d34-0410-b5e6-96231b3b80d8

Teach UpdateDomInfoForRevectoredPreds to handle revectored preds that are not
reachable, making it general purpose enough for use by InsertPreheaderForLoop.
Eliminate custom dominfo updating code in InsertPreheaderForLoop, using
UpdateDomInfoForRevectoredPreds instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30586 91177308-0d34-0410-b5e6-96231b3b80d8

remove misleading comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30585 91177308-0d34-0410-b5e6-96231b3b80d8

add method, correct comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30584 91177308-0d34-0410-b5e6-96231b3b80d8

Delete dead code; fix 80 col violations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30583 91177308-0d34-0410-b5e6-96231b3b80d8

add a note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30581 91177308-0d34-0410-b5e6-96231b3b80d8

Use "%llvmgxx" instead of "llvm-g++".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30580 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for better rotate left and mask support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30579 91177308-0d34-0410-b5e6-96231b3b80d8

Regression testcase for PR855.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30578 91177308-0d34-0410-b5e6-96231b3b80d8

Fold AND and ROTL more often

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30577 91177308-0d34-0410-b5e6-96231b3b80d8

remove extra white spaces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30576 91177308-0d34-0410-b5e6-96231b3b80d8

Use iterative algorith to assign DFS number. This reduces
call stack depth.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30575 91177308-0d34-0410-b5e6-96231b3b80d8

don't allow 'imm' or specific imms, like '1' on the LHS of a binop.
This shrinks X86GenDAGISel by ~330 lines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30574 91177308-0d34-0410-b5e6-96231b3b80d8

Make it work for DAG combine of multi-value nodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30573 91177308-0d34-0410-b5e6-96231b3b80d8

Fit to 80 columns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30572 91177308-0d34-0410-b5e6-96231b3b80d8

core corrections

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30570 91177308-0d34-0410-b5e6-96231b3b80d8

Use abstract class to facilitate dlopen() interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30569 91177308-0d34-0410-b5e6-96231b3b80d8

Basic "in frame" alias analysis.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30568 91177308-0d34-0410-b5e6-96231b3b80d8

more condition codes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30567 91177308-0d34-0410-b5e6-96231b3b80d8

if a constant can't be an immediate, add it to the constant pool

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30566 91177308-0d34-0410-b5e6-96231b3b80d8

fold (aext (and (trunc x), cst)) -> (and x, cst).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30561 91177308-0d34-0410-b5e6-96231b3b80d8