when the loop has exactly one exit, and make use of it in
LoopIndexSplit.

llvm-svn: 64388

llvm-svn: 64376

calls with the tail marker when inlining them through an invoke.  Patch,
testcase, and perfect analysis by Jay Foad!

llvm-svn: 64364

llvm-svn: 64363

forget about already inserted expressions.

llvm-svn: 64362

llvm-svn: 64352

the two non-mask arguments to a shufflevector must be the same width, but they do not have to be the same
width as the result value.

llvm-svn: 64335

llvm-svn: 64278

llvm-svn: 64242

llvm-svn: 64226

llvm-svn: 64209

llvm-svn: 64207

llvm-svn: 64177

llvm-svn: 64065

llvm-svn: 64062

changes the address space of the pointer.

llvm-svn: 64035

llvm-svn: 64003

llvm-svn: 63923

llvm-svn: 63916

Ignore dbg intrinsics while propagating conditional expression info. Take 2.

llvm-svn: 63898

Revert rev. 63876. It is causing llvm-gcc bootstrap failure.

llvm-svn: 63888

llvm-svn: 63880

llvm-svn: 63876

llvm-svn: 63802

llvm-svn: 63781

llvm-svn: 63700

llvm-svn: 63687

Do not let dbg intrinsic block folding of two entry phi node.

llvm-svn: 63671

If "optimize for size" attribute is set then block non-trivial loop unswitches but allow trivial loop unswitches.

llvm-svn: 63670

llvm-svn: 63659

renaming it to ConvertScalar_ExtractValue

llvm-svn: 63658

no functionality change.

llvm-svn: 63652

functionality change.

llvm-svn: 63651

aggregate values.  loads are not yet handled (coming
soon to an sroa near you).

llvm-svn: 63649

accessed at least once as a vector.  This prevents it from
compiling the example in not-a-vector into:

define double @test(double %A, double %B) {
	%tmp4 = insertelement <7 x double> undef, double %A, i32 0
	%tmp = insertelement <7 x double> %tmp4, double %B, i32 4
	%tmp2 = extractelement <7 x double> %tmp, i32 4
	ret double %tmp2
}

instead, producing the integer code.  Producing vectors when they
aren't otherwise in the program is dangerous because a lot of other
code treats them carefully and doesn't want to break them down.
OTOH, many things want to break down tasty i448's.

llvm-svn: 63638

llvm-svn: 63631

llvm-svn: 63620

llvm-svn: 63618

llvm-svn: 63600

crazy cases like:

struct f {  int A, B, C, D, E, F; };
short test4() {
  struct f A;
  A.A = 1;
  memset(&A.B, 2, 12);
  return A.C;
}

llvm-svn: 63596