llvm-svn: 95062

for vectors.  Codegen is generating awful code or segfaulting
in various cases (e.g. PR6204).

llvm-svn: 95058

llvm-svn: 95055

where callee's arguments are already in the caller's own caller's stack and
they line up perfectly. e.g.

extern int foo(int a, int b, int c);

int bar(int a, int b, int c) {
  return foo(a, b, c);
}

llvm-svn: 95053

as output.  Needed for (functional) correctness in inline asm,
and should be generally beneficial.  7361612.

llvm-svn: 95050

when the cast is extending.

llvm-svn: 95046

generalize it to handle more cases.

llvm-svn: 95045

llvm-svn: 95044

llvm-svn: 95041

don't use TargetData here.

llvm-svn: 95040

llvm-svn: 95036

llvm-svn: 95035

The MCStreamer based assemblers will take over for this functionality.

llvm-svn: 95033

llvm-svn: 95027

Rn operand.

llvm-svn: 95025

llvm-svn: 95022

llvm-svn: 95017

llvm-svn: 95012

disabled by default.  This divides the existing load PRE code into 2 phases:
first it checks that it is safe to move the load to each of the predecessors
where it is unavailable, and then if it is safe, the code is changed to move
the load.  Radar 7571861.

llvm-svn: 95007

llvm-svn: 95001

into 80 columns to match my artistic preferences.

llvm-svn: 95000

llvm-svn: 94997

llvm-svn: 94996

llvm-svn: 94995

evaluateICmpRelation wasn't handling blockaddress.

llvm-svn: 94993

type is the same as the element type of the vector.  EXTRACT_VECTOR_ELT can
be used to extended the width of an integer type.  This fixes a bug for
Generic/vector-casts.ll on a ppc750.

llvm-svn: 94990

cases, and implement target-independent folding rules for alignof and
offsetof. Also, reassociate reassociative operators when it leads to
more folding.

Generalize ScalarEvolution's isOffsetOf to recognize offsetof on
arrays. Rename getAllocSizeExpr to getSizeOfExpr, and getFieldOffsetExpr
to getOffsetOfExpr, for consistency with analagous ConstantExpr routines.

Make the target-dependent folder promote GEP array indices to
pointer-sized integers, to make implicit casting explicit and exposed
to subsequent folding.

And add a bunch of testcases for this new functionality, and a bunch
of related existing functionality.

llvm-svn: 94987

of objc message send was getting marked arm_apcscc, but the prototype
isn't.  This is fine at runtime because objcmsgsend is implemented in
assembly.  Only turn a mismatched caller and callee into 'unreachable'
if the callee is a definition.

llvm-svn: 94986

case, instcombine can't zap the invoke for fear of changing the CFG.
However, we have to do something to prevent the next iteration of
instcombine from inserting another store -> undef before the invoke
thereby getting into infinite iteration between dead store elim and
store insertion.

Just zap the callee to null, which will prevent the next iteration
from doing anything.

llvm-svn: 94985

The testcase from pr6198 does not crash for me -- I don't know what's up with
that -- so I'm not adding it to the tests.

llvm-svn: 94984

llvm-svn: 94982

array types as well as struct types, and which accepts arbitrary
Constant indicies.  

llvm-svn: 94981

llvm-svn: 94977

llvm-svn: 94970

llvm-svn: 94969

llvm-svn: 94955

Change TAILJMP's to be varargs and transfer implicit uses over from TCRETURN's. Otherwise the missing uses can make post-regalloc scheduling do bad things. This fixes 403.gcc.

llvm-svn: 94950

llvm-svn: 94949

llvm-svn: 94946

llvm-svn: 94945