giuma.cordes@gmail.com

llvm-svn: 49276

llvm-svn: 49274

llvm-svn: 49248

llvm-svn: 49247

2. Coalescer can now create an interesting situation where a register def can
   reaches itself without being killed.

llvm-svn: 49246

llvm-svn: 49244

before an invoke.  Failure to do this causes references in
the landing pad to variables that were not set.  Fixes
g++.dg/eh/delayslot1.C
g++.dg/eh/fp-regs.C
g++.old-deja/g++.brendan/eh1.C

llvm-svn: 49243

llvm-svn: 49218

is not needed.

llvm-svn: 49210

tools.  This is currently only enabled on the mac, but could easily be
supported by other hosts that are interested.

llvm-svn: 49207

llvm-svn: 49206

llvm-svn: 49198

llvm-svn: 49197

Dale fixed EH.

llvm-svn: 49192

llvm-svn: 49190

Removed a deleted file from the VStudio System project.  Also added custom build commands to engage 64 bit assembler for compilation callback on 64 bit configurations only.

llvm-svn: 49188

if some functions don't have debug info, we were outputing the same label at the start of each of those functions.  This makes assemblers unhappy

llvm-svn: 49176

an optional argument for us by T's Create method.

llvm-svn: 49169

- Be smarter about coalescing copies from implicit_def.

llvm-svn: 49168

llvm-svn: 49167

- Eliminate an implicit_def when it's being spilled.

llvm-svn: 49166

- Be (slightly) smarter about where to place the copies.

llvm-svn: 49165

There is no point in creating a long live range defined by an implicit_def. Scheduler now duplicates implicit_def instruction for each of its uses. Therefore, if an implicit_def node has multiple uses, it will become a number of very short live ranges, rather than a long one. This will make coalescer's job easier.

llvm-svn: 49164

This method allows one to create a directory, and optionally create all parent
directories that do not exist.

The original implementation would require that *all* directories along a path
are writable by the user, including directories that already exist. For example,
suppose we wanted to create the directory "/tmp/foo/bar", and the directory
"/tmp" already exists, but not "/tmp/foo". Since "/tmp" is writable by all
users, the original implementation would work, and create "/tmp/foo", followed
by "/tmp/bar".

A problem occurred, however if one wanted to created the directory
"/Users/myuser/bar" (or equivalently "/home/myuser/bar"), and "/Users/myuser"
already existed and is writable by the current user. The directory
"/User/myuser" is writable by the user, but "/User" is not. The original
implementation of createDirectoryOnDisk would return with failure since "/User"
is not writable, even though "/User/mysuser" is writable.

The new implementation works by recursively creating parents as needed, and thus
doesn't need to check the permissions on every directory in a path.

llvm-svn: 49162

llvm-svn: 49158

Fix x86-64 encoding bug. REX prefix must always follow 0x0F prefix. For example, extractps in 64bit mode: 66 REX 0F 3A 17, not 66 0F 3A REX 17.

llvm-svn: 49157

llvm-svn: 49156

llvm-svn: 49129

llvm-svn: 49124

CodeGenDAGPatterns, where it can be used in other tablegen backends.
This allows the inference to be done for DAGISelEmitter so that it
gets accurate mayLoad/mayStore/isSimpleLoad flags. 

This brings MemOperand functionality back to where it was before
48329. However, it doesn't solve the problem of anonymous patterns
which expand to code that does loads or stores.

llvm-svn: 49123

it causes compile errors.

llvm-svn: 49122

llvm-svn: 49111

StripSymbols when EH is on.

llvm-svn: 49110

now that llvm-gcc is lowering appropriately-sized struct returns
to i128 on x86-64.

llvm-svn: 49109

Iterators folloring a SmallVector erased element are invalidated so
don't access cached iterators from after the erased element.

Re-apply 49056 with SmallVector support.

llvm-svn: 49106

Now that I am told MachineRegisterInfo also tracks physical register uses / defs, I can do away with the horribleness I introduced a while back. It's impossible to detect if there is any use of a physical register below an instruction (and before any def of the register) with some cheap book keeping.

llvm-svn: 49105

llvm-svn: 49099

llvm-svn: 49096

It allows Use-Def and Def-Use relations to be treated as graphs.

llvm-svn: 49088

when some another register is used for argument passing.
Currently is used on Win64.

llvm-svn: 49079