corresponding @interface, provide a note showing which interface we're
referring to. This note has the fix-it hint on it.
Also, don't automatically apply fix-it hints for notes. They're meant
to express fix-its that would change semantics.
llvm-svn: 92870
linkage of vtables. Before this, we were emitting RTTI names for
template instantiations with strong external linkage rather than with
weak ODR linkage.
llvm-svn: 92857
(OP (trunc x), (trunc y)) -> (trunc (OP x, y))
Unfortunately this simple change causes dag combine to infinite looping. The problem is the shrink demanded ops optimization tend to canonicalize expressions in the opposite manner. That is badness. This patch disable those optimizations in dag combine but instead it is done as a late pass in sdisel.
This also exposes some deficiencies in dag combine and x86 setcc / brcond lowering. Teach them to look pass ISD::TRUNCATE in various places.
llvm-svn: 92849
result for a nested class whose first non-pure virtual member function
has an inline body. Previously, we were checking for the key function
before we had seen the (delayed) inline body.
llvm-svn: 92839
phi nodes when deciding which pointers point to local memory.
I actually checked long ago how useful this is, and it isn't
very: it hardly ever fires in the testsuite, but since Chris
wants it here it is!
llvm-svn: 92836
memcpy, memset and other intrinsics that only access their arguments
to be readnone if the intrinsic's arguments all point to local memory.
This improves the testcase in the README to readonly, but it could in
theory be made readnone, however this would involve more sophisticated
analysis that looks through the memcpy.
llvm-svn: 92829
for -Wsign-compare and -Wconversion, and use that coordinated logic to drive
both diagnostics. The new logic works more transparently with implicit
conversions, conditional operators, etc., as well as bringing -Wconversion's
ability to deal with pseudo-closed operations (e.g. arithmetic on shorts) to
-Wsign-compare.
Fixes PRs 5887, 5937, 5938, and 5939.
llvm-svn: 92823
deterministic and work properly with templates. Once a class that
needs a vtable has been defined, we now do one if two things:
- If the class has no key function, we place the class on a list of
classes whose virtual functions will need to be "marked" at the
end of the translation unit. The delay until the end of the
translation unit is needed because we might see template
specializations of these virtual functions.
- If the class has a key function, we do nothing; when the key
function is defined, the class will be placed on the
aforementioned list.
At the end of the translation unit, we "mark" all of the virtual
functions of the classes on the list as used, possibly causing
template instantiation and other classes to be added to the
list. This gets LLVM's lib/Support/CommandLine.cpp compiling again.
llvm-svn: 92821
Previously, instcombine would only promote an expression tree to
the larger type if doing so eliminated two casts. This is because
a need to manually do the sign extend after the promoted expression
tree with two shifts. Now, we keep track of whether the result of
the computation is going to be properly sign extended already. If
so, we can unconditionally promote the expression, which allows us
to zap more sext's.
This implements rdar://6598839 (aka gcc pr38751)
llvm-svn: 92815
An instruction like this:
%reg1097:1<def> = VMOVSR %R3<kill>, 14, %reg0
Must be replaced with this when substituting physical registers:
%S0<def> = VMOVSR %R3<kill>, 14, %reg0, %D0<imp-def>
llvm-svn: 92812
try to evaluate an expression as a constant boolean condition. This has
the same intended semantics as used in folding conditional operators.
llvm-svn: 92805
Jim Grosbach