Fix PR2634.  Create new virtual registers from spills early so that we
can give it the same stack slot as the spilled interval if it is folded.
This prevents the fold/unfold code from pointing to the wrong register.

llvm-svn: 58255

llvm-svn: 58253

llvm-svn: 58252

llvm-svn: 58250

(and a bunch of other node types).  While there, I
added a doNotCSE predicate and used it to reduce code
duplication (some of the duplicated code was wrong...).
This fixes ARM/cse-libcalls.ll when using LegalizeTypes. 

llvm-svn: 58249

llvm-svn: 58248

llvm-svn: 58247

worklist twice: UpdateNodeOperands could morph
a new node into a node already on the worklist.
We would then recalculate the NodeId for this
existing node and add it to the worklist.  The
testcase is ARM/cse-libcalls.ll, the problem
showing up once UpdateNodeOperands is taught to
do CSE for calls.

llvm-svn: 58246

llvm-svn: 58245

When destroying a translation unit, deallocate its owned declarations in reverse order, because there may be dependencies among the declarations.

llvm-svn: 58244

llvm-svn: 58243

This simplifies debug of this particular diagnostic (and removes some code clutter).

llvm-svn: 58242

Fix <rdar://problem/6315646> clang on xcode: error: invalid operands to binary expression ('id<NSTableViewDelegate>' and 'XCExtendedArrayController *').

There is still a bug here (as the FIXME in the test case indicates). Prior to this patch, the bug would generate an error. Now, we simply do nothing (which is less harmful until we can get it right). The complete bug fix will require changing ASTContext::mergeTypes(), which I'd like to defer for now.

llvm-svn: 58241

If it is not part of a loop it is obviously invariant wrt to all loops.

llvm-svn: 58240

llvm-svn: 58239

that need it to require it by ID.

llvm-svn: 58238

llvm-svn: 58237

llvm-svn: 58236

llvm-svn: 58235

llvm-svn: 58234

Only loc::MemRegionVal can be modified. This avoids crashing in RegionStore when a function pointer is used as an argument.

llvm-svn: 58233

codegen infrastructure, by default.  Please report
any breakage to the mailing lists.

llvm-svn: 58232

llvm-svn: 58231

For now, don't split live intervals around x87 stack register barriers. FpGET_ST0_80 must be right after a call instruction (and ADJCALLSTACKUP) so we need to find a way to prevent reload of x87 registers between them.

llvm-svn: 58230

LargeBlockInfo, we can now dramatically simplify their implementation
and speed them up at the same time.  Now the code has time proportional
to the number of uses of the alloca, not the size of the block.

This also eliminates code that tried to batch up different allocas which
are used in the same blocks, and eliminates the 'retry list' logic which
was baroque and no unneccesary.  In addition to being a speedup for crazy
cases, this is also a nice cleanup:

PromoteMemoryToRegister.cpp |  270 +++++++++++++++-----------------------------
 1 file changed, 96 insertions(+), 174 deletions(-)

llvm-svn: 58229

llvm-svn: 58228

a trivial dense map.  Use this in RewriteSingleStoreAlloca to
avoid aggressively rescanning blocks over and over again.  This
fixes PR2925, speeding up mem2reg on the testcase in that bug
from 4.56s to 0.02s in a debug build on my machine.

llvm-svn: 58227

llvm-svn: 58226

150, based on llvm-test measurements.

llvm-svn: 58225

llvm-svn: 58224

darwin or AIX abis.  This fixes PR2904.

llvm-svn: 58222

Note that -check-exit-code was on by default while -append-exit-code is not.

llvm-svn: 58221

t.c:1:13: error: cannot codegen this designators yet
int a[10] = {2, 4, [8]=9, 10};
            ^~~~~~~~~~~~~~~~~

llvm-svn: 58220

llvm-svn: 58218

support as far as I know.

llvm-svn: 58217

objc mode.

llvm-svn: 58216

struct foo Y[10] = {
  [4] .arr [2] 4  // expected-error {{expected '=' or another designator}}
};

because the "missing equals" extension only is valid if there 
is exactly one array designator.

llvm-svn: 58215

fix an obscure memory leak.

llvm-svn: 58213

improve diagnostic for a malformed field designator.

llvm-svn: 58212

easier to understand and hack on, no functionality change.

llvm-svn: 58210