Pretty hackish, but code itself is dirty mess, so we won't make anything worse. :)

llvm-svn: 40472

load elimination code from RedundantLoadElimination.

llvm-svn: 40469

llvm-svn: 40464

llvm-svn: 40458

llvm-svn: 40457

llvm-svn: 40456

2. Fold an if statement into the Assert1 macro call.

llvm-svn: 40455

to use sret or inreg on the function. It is equally illegal to use noreturn
or nounwind on a parameter; they only go with the function. This patch
enforces these rules.

llvm-svn: 40453

llvm-svn: 40448

llvm-svn: 40445

llvm-svn: 40443

llvm-svn: 40441

llvm-svn: 40440

undefs.

llvm-svn: 40439

    __builtin_ia32_cvtss2si64
    __builtin_ia32_cvttss2si64
    __builtin_ia32_cvtsi642ss
    __builtin_ia32_cvtsd2si64
    __builtin_ia32_cvttsd2si64
    __builtin_ia32_cvtsi642sd

llvm-svn: 40411

llvm-svn: 40405

reported in PR 1556.

llvm-svn: 40133

llvm-svn: 40132

when there are no uses. This fixes a dangling-pointer bug, where pointers to
deleted instructions were not removed from kills lists. More info here:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2007-July/009749.html

llvm-svn: 40131

This hopefully fixes a miscompilation of TargetData.cpp when self hosting.

llvm-svn: 40125

llvm-svn: 40124

llvm-svn: 40123

llvm-svn: 40109

llvm-svn: 40102

pacifies g++-4.2.

llvm-svn: 40089

llvm-svn: 40085

flag when determining what to do with dependencies.

llvm-svn: 40079

code that cross integer / floating point domains (e.g. generate pxor / pand for
logical ops on floating point value, movdqa to load / store floating point SSE
values). Given that, it's better to use movaps instead of movdqa and movups
instead of movdqu. They have the same latency but the "aps" variants are one
byte shorter.
If the domain crossing problem is a real performance issue, then we will have to
fix it with dynamic programming based isel.

llvm-svn: 40076

llvm-svn: 40074

llvm-svn: 40071

Fix patterns so we isel the xorps, etc. for floating pt logical SSE ops. DAG combiner may fold away the (bit_convert (load)).

llvm-svn: 40070

Change the keywords for the zext and sext parameter attributes to be 
zeroext and signext so they don't conflict with the keywords for the
instructions of the same name. This gets around the ambiguity.

llvm-svn: 40069

the type "unsigned" instead of uintptr_t for a 1-bit structure field.

llvm-svn: 40066

llvm-svn: 40064

llvm-svn: 40062

with hopefully correct code that pleases g++-4.2.

llvm-svn: 40051

what it thought it was doing.

llvm-svn: 40044

llvm-svn: 40043

With this, the time to optimize 403.gcc is down to 15.1s.

llvm-svn: 40042

This results in a slight speedup for 403.gcc.

llvm-svn: 40040