produces warning from make about bad timestamp on /dev/null

Patch by Holger Schurig.

llvm-svn: 40426

llvm-svn: 40417

llvm-svn: 40416

llvm-svn: 40415

llvm-svn: 40413

llvm-svn: 40412

    __builtin_ia32_cvtss2si64
    __builtin_ia32_cvttss2si64
    __builtin_ia32_cvtsi642ss
    __builtin_ia32_cvtsd2si64
    __builtin_ia32_cvttsd2si64
    __builtin_ia32_cvtsi642sd

llvm-svn: 40411

llvm-svn: 40405

they don't do the right thing.  

Implement StringMap::erase.

Fix a nasty bug in the default ctor.

llvm-svn: 40395

smarter.

llvm-svn: 40391

llvm-svn: 40378

llvm-svn: 40371

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

llvm-svn: 40130

llvm intrinsics in llvm-gcc-4.2.  This is because
get_pointer_alignment bails out: it relies on TER
to compute accurate alignment information.

llvm-svn: 40128

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

llvm-svn: 40125

llvm-svn: 40124

llvm-svn: 40123

llvm-svn: 40119

clearly shared between processors if these instructions are being used, no 
further specification of what type of memory is necessary.

llvm-svn: 40118

llvm-svn: 40117

llvm-svn: 40116

a preview for the intrinsics that are going to be implemented over the next few 
weeks.

llvm-svn: 40115

llvm-svn: 40114

llvm-svn: 40109

but I think it got lost in the conversion mess.

llvm-svn: 40107

llvm-svn: 40102

for everything.

llvm-svn: 40101

403.gcc from 15.2s to 14.3s.

llvm-svn: 40100

pacifies g++-4.2.

llvm-svn: 40089

llvm-svn: 40085

flag when determining what to do with dependencies.

llvm-svn: 40079

llvm-svn: 40077

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: 40075

llvm-svn: 40074

llvm-svn: 40073

llvm-svn: 40072