llvm-svn: 46896

llvm-svn: 46895

unsigned.

llvm-svn: 46894

It's not always safe to fold movsd into xorpd, etc. Check the alignment of the load address first to make sure it's 16 byte aligned.

llvm-svn: 46893

128-bit vectors need it only when SSE is on.

llvm-svn: 46890

llvm-svn: 46882

llvm-svn: 46877

llvm-svn: 46876

llvm-svn: 46866

llvm-svn: 46863

llvm-svn: 46861

to return pointers instead of references, since this is always what
is needed.

llvm-svn: 46857

llvm-svn: 46854

as <unknown>. And make some minor adjustments to the MemOperand
dump format.

llvm-svn: 46853

Before:
_main:
        subq    $8, %rsp
        leaq    _X(%rip), %rax
        movsd   8(%rax), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret
Now:
_main:
        subq    $8, %rsp
        movsd   _X+8(%rip), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret

Notice there is another idiotic codegen issue that needs to be fixed asap:
xorl    %ecx, %ecx
movl    %ecx, %eax

llvm-svn: 46850

llvm-svn: 46849

llvm-svn: 46848

llvm-svn: 46836

llvm-svn: 46833

initializer problem, a minor tweak to the way the
DAGISelEmitter finds load/store nodes, and a renaming of the
new PseudoSourceValue objects.

llvm-svn: 46827

llvm-svn: 46825

http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20080128/057882.html

This is causing a miscompilation on PPC G5 and just now seeing it on iMac x86-64.

llvm-svn: 46822

llvm-svn: 46821

llvm-svn: 46818

llvm-svn: 46817

This is not ready for review or hacking, this is a work in progress :)

llvm-svn: 46816

RegAllocaLocal still *requires* LiveVariables since it runs PHIElimination, followed by TwoAddress which requires LiveVariables. We cannot run LiveVariables on non-SSA code.

llvm-svn: 46813

llvm-svn: 46810

Throttle the non-local dependence analysis for basic blocks with more than 50 predecessors. Added command line option to play with this threshold.

llvm-svn: 46790

llvm-svn: 46781

llvm-svn: 46776

Move to getCALLSEQ_END to ensure CALLSEQ_END node produces a flag. This is consistent with the definition in td file.

llvm-svn: 46775

check more intelligent.  This speeds up mem2reg from 5.29s to 
0.79s on a synthetic testcase with tons of predecessors and
phi nodes.

llvm-svn: 46767

llvm-svn: 46764

If a vr is already marked alive in a bb, then it has PHI uses that are visited earlier, then it is not killed in the def block (i.e. not dead).

llvm-svn: 46763

llvm-svn: 46761

dependencies in makefile, and fix llvm_cv_no_link_all_option
on darwin.

Patch by Shantonu Sen, more info here:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2008-February/012410.html

llvm-svn: 46760

llvm-svn: 46757

unique ImutAVLTree* for profiling.

Modified ImutAVLTree:
 (1) changed ComputeHash() to ComputeDigest() and
 (2) changed Profile() to use the computed digest and
 (3) modified insertion of IMutAVLTree into the FoldingSet owned by
     the ImutAVLTreeFactory object to use profiling instead of computing
     a direct hash.  This fixes a bug where our abuse of the FoldingSet would
     not work when the FoldingSet was resized.

llvm-svn: 46753

llvm-svn: 46746