llvm-svn: 126082

We usually catch this kind of optimization through InstSimplify's distributive
magic, but or doesn't distribute over xor in general.

"A | ~(A | B) -> A | ~B" hits 24 times on gcc.c.

llvm-svn: 126081

The DAGCombiner folds the zext into complex load instructions. This patch
prevents this optimization on vectors since none of the supported targets
knows how to perform load+vector_zext in one instruction.

llvm-svn: 126080

llvm-svn: 126078

by Andrew Clinton!

llvm-svn: 126077

one Value set. This is faster because we only need to use the set when there
isn't already an entry in the map. No functionality change!

llvm-svn: 126076

llvm-svn: 126073

since one needs to be a register operand. Just use movss instead of forcing
an operand into a register.

Fixes PR9239

llvm-svn: 126072

parallel with the rest of the tools directory as it depends on Clang.

This patch was first applied in r125956 and subsequently reverted in
r125964 as it broke in-tree builds.  Makefile.rules was fixed up in 
r126070 to handle missing optional directories for the in-tree case,
so it should be safe now to bring this patch back in.
 

llvm-svn: 126071

Do not try to descend into optional build directories if they do not
exist.  This makes the build logic symmetric for both the in tree and
out of tree cases.

llvm-svn: 126070

This fixes PR 8738, 9060 and 9132.

llvm-svn: 126069

of testing for its presence at cmake time.

This way the build automatically regenerates the makefiles when a svn
update brings in a new sublibrary.

llvm-svn: 126068

N streams by making the stream a vector of stream shared pointers
that is protected by a mutex. Streams can be get/set by index which
allows indexes to be defined as stream indentifiers. If a stream is
set at index 3 and there are now streams in the collection, then
empty stream objects are inserted to ensure that stream at index 3
has a valid stream. There is also an append method that allows a stream
to be pushed onto the stack. This will allow our streams to be very
flexible in where the output goes.

Modified the CommandReturnObject to use the new StreamTee functionality.
This class now defines two StreamTee indexes: 0 for the stream string
stream, and 1 for the immediate stream. This is used both on the output
and error streams.

Added the ability to get argument types as strings or as descriptions.
This is exported through the SBCommandInterpreter API to allow external
access.

Modified the Driver class to use the newly exported argument names from
SBCommandInterpreter::GetArgumentTypeAsCString().

llvm-svn: 126067

intended.

llvm-svn: 126066

llvm-svn: 126065

llvm-svn: 126064

llvm-svn: 126063

llvm-svn: 126062

Add a new ObjCExceptions member variable to LangOptions. This controls whether Objective-C exceptions are enabled or not (they are by default).

llvm-svn: 126061

llvm-svn: 126060

a typedef.

llvm-svn: 126059

the instruction passed in.  Make sure to account for this correctly, instead
of looping infinitely.

llvm-svn: 126058

comparison itself is a constant expression. Fixes PR7536.

llvm-svn: 126057

designators: allowing codegen when the element initializer is a
constant or something else without a side effect.  This unblocks
enough to let process.c in the linux kernel build, PR9257.

llvm-svn: 126056

attribute, we also care about those with the "constructor"
attribute. Fixes PR6521.

llvm-svn: 126055

llvm-svn: 126054

llvm-svn: 126053

of libxul from 12m31.084s to 7m1.359s.

llvm-svn: 126052

bot. I am not sure if this is valid Valgrind exclusion file syntax, but the
Internet seems to think so.

llvm-svn: 126051

llvm-svn: 126050

The syntax is (add_dependencies target-name depend-target1 ...).

llvm-svn: 126049

includes explicitly-specified template arguments) to a function
template specialization in cases where no deduction is performed or
deduction fails. Patch by Faisal Vali, fixes PR7505!

llvm-svn: 126048

This is reasonable to do since all bt-mem forms do the
same thing.

llvm-svn: 126047

llvm-svn: 126045

constant, including globals.  This makes us generate much more "pretty" pattern
globals as well because it doesn't break it down to an array of bytes all the
time.

This enables us to handle stores of relocatable globals.  This kicks in about
48 times in 254.gap, giving us stuff like this:

@.memset_pattern40 = internal constant [2 x %struct.TypHeader* (%struct.TypHeader*, %struct.TypHeader*)*] [%struct.TypHeader* (%struct.TypHeader*, %struct
.TypHeader*)* @IsFalse, %struct.TypHeader* (%struct.TypHeader*, %struct.TypHeader*)* @IsFalse], align 16

...
  call void @memset_pattern16(i8* %scevgep5859, i8* bitcast ([2 x %struct.TypHeader* (%struct.TypHeader*, %struct.TypHeader*)*]* @.memset_pattern40 to i8*
), i64 %tmp75) nounwind

llvm-svn: 126044

them as splat values.

llvm-svn: 126041

unsplatable values into memset_pattern16 when it is available
(recent darwins).  This transforms lots of strided loop stores
of ints for example, like 5 in vpr:

  Formed memset:   call void @memset_pattern16(i8* %4, i8* getelementptr inbounds ([16 x i8]* @.memset_pattern9, i32 0, i32 0), i64 %tmp25)
    from store to: {%3,+,4}<%11> at:   store i32 3, i32* %scevgep, align 4, !tbaa !4

llvm-svn: 126040

llvm-svn: 126039

current instantiation, even though we have a RecordDecl describing
them. Fixes PR9255.

Amusingly, I've had this patch sitting around for a month or two
because it was "obviously" wrong, but hadn't gotten around to writing
a test case to submit the fix :)

llvm-svn: 126038

llvm-svn: 126037