llvm-svn: 50192

llvm-svn: 50190

llvm-svn: 50189

llvm-svn: 50187

llvm-svn: 50169

llvm-svn: 50168

Be over-conservative: scan for all used virtual registers and calculate maximal stack alignment in assumption, that there will be spill of vector register.

llvm-svn: 50167

llvm-svn: 50166

llvm-svn: 50163

llvm-svn: 50162

Eastimate required stack alignment early, so we can decide, whether we will need frame pointer or not

llvm-svn: 50161

llvm-svn: 50159

llvm-svn: 50158

llvm-svn: 50157

llvm-svn: 50156

llvm-svn: 50155

llvm-svn: 50154

llvm-svn: 50153

llvm-svn: 50152

argument. The x86-64 ABI requires the incoming value of %rdi to
be copied to %rax on exit from a function that is returning a
large C struct.

Also, add a README-X86-64 entry detailing the missed optimization
opportunity and proposing an alternative approach.

llvm-svn: 50075

llvm-svn: 50053

llvm-svn: 50029

llvm-svn: 50007

llvm-svn: 49986

llvm-svn: 49977

llvm-svn: 49949

llvm-svn: 49948

llvm-svn: 49947

llvm-svn: 49946

llvm-gcc is now lowering va_copy on x86-64, so this completes
the fix for PR2230.

llvm-svn: 49922

- Remove unused instructions.

llvm-svn: 49921

llvm-svn: 49878

llvm-svn: 49869

llvm-svn: 49830

llvm-svn: 49822

Correlate stubs with functions in JIT: when emitting a stub, the JIT tells the memory manager which function
the stub will resolve.

llvm-svn: 49814

Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented

llvm-svn: 49809

llvm-svn: 49808

Rename SDOperandImpl back to SDOperand.
Introduce the SDUse class that represents a use of the SDNode referred by
an SDOperand. Now it is more similar to Use/Value classes.

Patch is approved by Dan Gohman.

llvm-svn: 49795

puts its result in a 32-bit GPR.

llvm-svn: 49762