llvm-svn: 113117

llvm-svn: 113116

llvm-svn: 113115

llvm-svn: 113114

llvm-svn: 113113

llvm-svn: 113110

llvm-svn: 113109

llvm-svn: 113108

llvm-svn: 113106

This reduces malloc traffic (yay!) and removes MergeFunctionsEqualityInfo.

llvm-svn: 113105

strong functions first to make sure they're the canonical definitions and then
do a second pass looking only for weak functions.

llvm-svn: 113104

David Vandevoorde's name correctly.

llvm-svn: 113103

Since mem2reg isn't run at -O0, we get a ton of reloads from the stack,
for example, before, this code:

int foo(int x, int y, int z) {
  return x+y+z;
}

used to compile into:

_foo:                                   ## @foo
	subq	$12, %rsp
	movl	%edi, 8(%rsp)
	movl	%esi, 4(%rsp)
	movl	%edx, (%rsp)
	movl	8(%rsp), %edx
	movl	4(%rsp), %esi
	addl	%edx, %esi
	movl	(%rsp), %edx
	addl	%esi, %edx
	movl	%edx, %eax
	addq	$12, %rsp
	ret

Now we produce:

_foo:                                   ## @foo
	subq	$12, %rsp
	movl	%edi, 8(%rsp)
	movl	%esi, 4(%rsp)
	movl	%edx, (%rsp)
	movl	8(%rsp), %edx
	addl	4(%rsp), %edx    ## Folded load
	addl	(%rsp), %edx     ## Folded load
	movl	%edx, %eax
	addq	$12, %rsp
	ret

Fewer instructions and less register use = faster compiles.

llvm-svn: 113102

llvm-svn: 113101

llvm-svn: 113100

llvm-svn: 113099

llvm-svn: 113098

llvm-svn: 113097

I think this wraps up all the legal cases.

llvm-svn: 113096

llvm-svn: 113095

llvm-svn: 113094

llvm-svn: 113093

llvm-svn: 113092

llvm-svn: 113091

which is should have done from the beginning.  As usual, the most
fun with this sort of change is updating all the testcases.

llvm-svn: 113090

llvm-svn: 113089

llvm-svn: 113088

llvm-svn: 113087

Changed __config to react to all of clang's currently documented has_feature flags, and renamed _LIBCPP_MOVE to _LIBCPP_HAS_NO_RVALUE_REFERENCES to be more consistent with the rest of the libc++'s flags, and with clang's nomenclature.

llvm-svn: 113086

check in the "typedef for anonymous type" check should have been a
getAs.

llvm-svn: 113085

Clobber ranges are no longer used when joining physical registers.
Instead, all aliases are checked for interference.

llvm-svn: 113084

generate the necessary code. This patch fixes it.
// rdar://8389655

llvm-svn: 113079

that diagnose invalid references to references.

llvm-svn: 113078

llvm-svn: 113077

llvm-svn: 113076

llvm-svn: 113075

llvm-svn: 113074

llvm-svn: 113073

not SelectAddr

llvm-svn: 113072

llvm-svn: 113071