a scheduling region boundary.  This isn't necessary for
correctness; it helps with compile time, as it avoids the need
for data- and anti-dependencies from all spills and reloads on
the stack-pointer modification.

llvm-svn: 64255

scheduling, and generalize is so that preserves state across
scheduling regions. This fixes incorrect live-range information around
terminators and labels, which are effective region boundaries.

In place of looking for terminators to anchor inter-block dependencies,
introduce special entry and exit scheduling units for this purpose.

llvm-svn: 64254

llvm-svn: 64242

llvm-svn: 64240

llvm-svn: 64237

an emulated one.  Adjust the check.

llvm-svn: 64236

llvm-svn: 64226

This fixes PR3535.

llvm-svn: 64224

"Can I compile C or C++ code to platform-independent LLVM bitcode?"

llvm-svn: 64222

uninitialized).

llvm-svn: 64220

Fix PR3457: Ignore control successors when looking for closest scheduled successor. A control successor doesn't read result(s) produced by the scheduling unit being evaluated.

llvm-svn: 64210

llvm-svn: 64209

llvm-svn: 64207

llvm-svn: 64204

Function temporaries can not overlap with retval or args.See the comment in source code to know the reason. Anything having .auto. in its name is local to a function in nature irrespective of the linkage specified. print static local variables in module level IDATA section. 

llvm-svn: 64199

llvm-svn: 64186

If the target cannot issue a copy for the given source and dest registers, abort instead of silently continue.

llvm-svn: 64184

llvm-svn: 64177

llvm-svn: 64164

llvm-svn: 64163

llvm-svn: 64158

llvm-svn: 64150

llvm-svn: 64148

llvm-svn: 64147

even if the underlying operand is NULL. This may happen in debugging context
within opt with partial loop unrolling (see test/Transforms/LoopUnroll/partial.ll).
After this fix I can resubmit the (backed out) r63459:
* lib/VMCore/AsmWriter.cpp: use precise accessors.

llvm-svn: 64142

llvm-svn: 64137

llvm-svn: 64136

llvm-svn: 64132

llvm-svn: 64131

llvm-svn: 64126

Fix another case ShortenDeadCopySrcLiveRange is shortening too much. No test case possible since I don't know what to grep for. :-(

llvm-svn: 64125

suprise to some callers, e.g. register coalescer. For now, add an parameter
that tells AnalyzeBranch whether it's safe to modify the mbb. A better
solution is out there, but I don't have time to deal with it right now.

llvm-svn: 64124

llvm-svn: 64119

llvm-svn: 64112

llvm-svn: 64111

llvm-svn: 64108

Remove warnings about not being able to delete something. Don't run lipo on gccas, gccld, and llvm-config scripts.

llvm-svn: 64107

llvm-svn: 64106

llvm-svn: 64104

llvm-svn: 64103