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: 45165

llvm-svn: 45164

llvm-svn: 45163

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

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: 45141

llvm-svn: 45140

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

flags clearer.

llvm-svn: 45120

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

for Ocaml-based compilers targeting embedded devices. :)

llvm-svn: 45096

llvm-svn: 45085

Change the PointerType api for creating pointer types. The old functionality of PointerType::get() has become PointerType::getUnqual(), which returns a pointer in the generic address space. The new prototype of PointerType::get() requires both a type and an address space.

llvm-svn: 45082

Make it clear in the LangRef that allocation instructions only operated on the generic address space. Implement support in the verifier for ensuring this is true.

llvm-svn: 45080

changed not to reject invoke of inline asm.

llvm-svn: 45077

llvm-svn: 45076

llvm-svn: 45075

X86CodeEmitter.cpp:378: failed assertion `0 && "Immediate size not set!"'

I *think* this is right, but Evan, please verify.  It also looks like
CMPSDrr and maybe others are missing this info.  Evan, plz investigate.

llvm-svn: 45074

calls.  Remove special casing of inline asm from the
inliner.  There is a potential problem: the verifier
rejects invokes of inline asm (not sure why).  If an
asm call is not marked "nounwind" in some .ll, and
instcombine is not run, but the inliner is run, then
an illegal module will be created.  This is bad but
I'm not sure what the best approach is.  I'm tempted
to remove the check in the verifier...

llvm-svn: 45073

warning: suggest a space before ';' or explicit braces around empty  
body in 'for' statement

Patch by Mike Stump (modified slightly by yours truly).

llvm-svn: 45071

llvm-svn: 45070