Reviewed by Dan Gohman.

llvm-svn: 82300

simplifylibcalls optimization is thus valid for C++ but not C.
It's not important enough to worry about for C++ apps, so just
remove it.

rdar://7191924

llvm-svn: 80887

llvm-svn: 80766

before performing optimizations based on constant string values.

llvm-svn: 79384

llvm-svn: 79298

llvm-svn: 78948

metadata related, which I'm waiting on to avoid conflicting with Devang.

llvm-svn: 77721

llvm-svn: 77516

 - Call RAUW to delete all instructions (this is a patch from Nick Lewycky).

llvm-svn: 77512

llvm-svn: 77494

into a new BB that has no predecessors.

llvm-svn: 77433

llvm-svn: 77347

llvm-svn: 77247

llvm-svn: 77148

llvm-svn: 77145

Also, change MDString to use a StringRef.

llvm-svn: 77098

Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types.  More to come.

llvm-svn: 77011

 - Yay for '-'s and simplifications!

 - I kept StringMap::GetOrCreateValue for compatibility purposes, this can
   eventually go away. Likewise the StringMapEntry Create functions still follow
   the old style.

 - NIFC.

llvm-svn: 76888

llvm-svn: 76702

where int is 32 bits.

llvm-svn: 76293

our current context-passing stuff, which is also fixed here

llvm-svn: 76089

llvm-svn: 75497

llvm-svn: 75040

llvm-svn: 75025

llvm-svn: 74985

llvm-svn: 74781

strcmp -> memcmp when the lengths of the strings are unknown.

Patch by Nick Lewycky!

llvm-svn: 73751

llvm-svn: 73715

integer and floating-point opcodes, introducing
FAdd, FSub, and FMul.

For now, the AsmParser, BitcodeReader, and IRBuilder all preserve
backwards compatability, and the Core LLVM APIs preserve backwards
compatibility for IR producers. Most front-ends won't need to change
immediately.

This implements the first step of the plan outlined here:
http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt

llvm-svn: 72897

Benjamin Kramer!

llvm-svn: 72625

llvm-svn: 71644

strncat :(

strncat(foo, "bar", 99)
would be optimized to
memcpy(foo+strlen(foo), "bar", 100, 1)
instead of
memcpy(foo+strlen(foo), "bar", 4, 1)"

Patch by Benjamin Kramer!

llvm-svn: 68905

code.  Patch by Benjamin Kramer!

llvm-svn: 68885

instead of the place where it started to perform the string copy.

- PR3661
- Patch by Benjamin Kramer!

llvm-svn: 68443

llvm-svn: 66867

llvm-svn: 66866

when I was looking at functions used by python.

Highlights include, better largefile support (64-bit file sizes on 32-bit
systems), fputs string is nocapture, popen/pclose added (popen being noalias
return), modf and frexp and friends. Also added some missing 'break' statements
and combined identical sections.

llvm-svn: 64615

llvm-svn: 64460

mark the first argument nocapture if endptr=NULL for each particular call.

llvm-svn: 64453

llvm-svn: 64352