llvm-svn: 45178

from
_foo:
        movl    $99, %ecx
        movl    4(%esp), %eax
        subl    %eax, %ecx
        xorl    %edx, %edx
        testl   %ecx, %ecx
        cmovs   %edx, %eax
        ret

to
_foo:
        xorl    %ecx, %ecx
        movl    4(%esp), %eax
        cmpl    $99, %eax
        cmovg   %ecx, %eax
        ret

llvm-svn: 45173

llvm-svn: 45172

llvm-svn: 45170

llvm-svn: 45169

llvm-svn: 45168

llvm-svn: 45167

llvm-svn: 45166

llvm-svn: 45165

llvm-svn: 45164

llvm-svn: 45163

Added additional serialization functors for use with std::foreach.

llvm-svn: 45162

llvm-svn: 45161

doesNotThrow.

llvm-svn: 45160

llvm-svn: 45159

Fold certain additions through selects (and their compares) so as to eliminate subtractions. This code is often produced by the SMAX expansion in SCEV.

This implements test/Transforms/InstCombine/2007-12-18-AddSelCmpSub.ll

llvm-svn: 45158

FIX for PR1799: When a load is unfolded from an instruction, check if it is a new node. If not, do not create a new SUnit.

llvm-svn: 45157

llvm-svn: 45151

llvm-svn: 45150

Don't forget to print address space qualifiers when printing out the type table! Thanks to Gordon Henriksen for pointing this out.

llvm-svn: 45147

llvm-svn: 45144

llvm-svn: 45141

llvm-svn: 45140

llvm-svn: 45139

llvm-svn: 45134

llvm-svn: 45133

based what flag to set on whether it was already marked as
"isRematerializable". If there was a further check to determine if it's "really"
rematerializable, then I marked it as "mayHaveSideEffects" and created a check
in the X86 back-end similar to the remat one.

llvm-svn: 45132

it's auto-upgraded to a shufflevector instruction.

llvm-svn: 45131

- New test case: nand.ll

llvm-svn: 45130

std::vector<char> starting from any index in the vector.

llvm-svn: 45129

llvm-svn: 45128

llvm-svn: 45126

llvm-svn: 45123

flags clearer.

llvm-svn: 45120

Patch by Richard Pennington.

llvm-svn: 45115

Add comments to reset indicating that it deletes its pointer.
Add a new take() method, which can be used to get the pointer
without it being deleted.

llvm-svn: 45112

how to lower them (with no attempt made to be
efficient, since they should only occur for
unoptimized code).

llvm-svn: 45108

GLIBCXX_DEBUG fix.  std::vector<>::end() is invalidated by erase.

llvm-svn: 45101

Get rid of annoying spaces.

llvm-svn: 45100

passed the erased element.

llvm-svn: 45099