Requires CMake 2.8.3 or newer.

llvm-svn: 126092

PR9245.

llvm-svn: 126091

used by the linker and not by nm or ar.

llvm-svn: 126089

test for that. With this change, test/CodeGen/X86/codegen-dce.ll no longer finds
any instructions to DCE, so delete the test.

Also renamed J and JP to I and IP in RecursivelyDeleteDeadPHINode.

llvm-svn: 126088

libxul links in 7m0.403s.

llvm-svn: 126085

Visual Studio.

llvm-svn: 126083

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

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

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

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

llvm-svn: 126065

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

llvm-svn: 126058

llvm-svn: 126054

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

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

llvm-svn: 126047

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

up add_clang_unittest's calling convention.

llvm-svn: 126031

confident enough that he knows what he is doing.

llvm-svn: 126019

llvm-svn: 126018

Add ImmutableMap methods 'manualRetain()', 'manualRelease()', and 'getRootWithoutRetain()' to help more aggressively reclaim memory in the static analyzer.

llvm-svn: 126011

Do not emit empty DW_TAG_lexical_block DIEs.  In one test case, size of debug info reduced by almost 7%.

llvm-svn: 126009

llvm-svn: 126008

llvm-svn: 126005

llvm-svn: 126004

llvm-svn: 126003

llvm-svn: 126002

llvm-svn: 126001

Patch by Kaelyn Uhrain!

llvm-svn: 126000

(This is infact direct copy from DIFactory, which is disappearing soon.)

llvm-svn: 125989

llvm-svn: 125988

llvm-svn: 125987

llvm-svn: 125986