prevent an llvm developer from mistakenly thinking that just because the
intrinsic has volatile flags that volatile operations can be converted
to or folded into them.

Platforms may rely on volatile loads and stores of natively supported
data width to be executed as single instruction. When compiling
C, this expectation likely holds for l-values of volatile primitive
types with native hardware support, but not necessarily for aggregate
types. The frontend upholds these expectations, which are not
specified in the IR.

llvm-svn: 173974

This is the first commit of a large series which will add support for the
QPX vector instruction set to the PowerPC backend. This instruction set is
used on the IBM Blue Gene/Q supercomputers.

llvm-svn: 173973

llvm-svn: 173971

Boilerplate is often the hardest part of getting started with these
kinds of things, so throw them a bone.

llvm-svn: 173969

Use the number of 'slots' in the AttributeSetImpl being 0 to indicate that the AttributeSet is empty.

llvm-svn: 173962

llvm-svn: 173960

Given source IR:
call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !14), !dbg !15
we used to generate 
call void @llvm.dbg.declare(metadata !27, metadata !28), !dbg !29
!27 = metadata !{null}

With this patch, we will correctly generate
call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !27), !dbg !28

Looking up %argc.addr in ValueMap will return null, since %argc.addr is already
correctly set up, we can use identity mapping.

llvm-svn: 173946

More details in this thread: http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130128/163783.html

Patch by JF Bastien

llvm-svn: 173943

llvm-svn: 173941

llvm-svn: 173939

llvm-svn: 173936

This is required to use them in TableGen.

llvm-svn: 173923

correspond to the code.

Patch by Stephen McGruer.

llvm-svn: 173914

llvm-svn: 173907

Attempt to fix dragonegg. Use the number of slots to determine if the AttributeSet has attributes or not.

llvm-svn: 173902

                          sext-not-and --> select.

Patch by Muhammad Tauqir Ahmad.

llvm-svn: 173901

Regenerate configure script for new option to make the buildbots happy.

Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org>
llvm-svn: 173893

This adds a new --with-python option to allow configuration of the python binary
for building.  If not specified, $PATH will be searched for common python binary
names (python, python2, python3).  If specified, and the path is not executable,
it will attempt to search $PATH.

Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org>
Reviewed-by: Eric Christopher &lt;echristo@gmail.com&gt;, Daniel Dunbar <daniel@zuster.org>
llvm-svn: 173890

llvm-svn: 173888

llvm-svn: 173887

llvm-svn: 173886

setting of ELF header e_flags.

Contributer: Jack Carter
 
llvm-svn: 173885

setting of ELF header e_flags.

Contributer: Jack Carter
 
llvm-svn: 173884

and update ELF header e_flags.

Currently gathering information such as symbol, 
section and data is done by collecting it in an 
MCAssembler object. From MCAssembler and MCAsmLayout 
objects ELFObjectWriter::WriteObject() forms and 
streams out the ELF object file.

This patch just adds a few members to the MCAssember 
class to store and access the e_flag settings. It 
allows for runtime additions to the e_flag by 
assembler directives. The standalone assembler can 
get to MCAssembler from getParser().getStreamer().getAssembler().

This patch is the generic infrastructure and will be
followed by patches for ARM and Mips for their target 
specific use.

Contributer: Jack Carter
 
llvm-svn: 173882

http://llvm-reviews.chandlerc.com/D332



Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org>
llvm-svn: 173879

This simply fixes up quoting of macro invocations to appease newer versions of autotools.

http://llvm-reviews.chandlerc.com/D332



Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org>
llvm-svn: 173878

Additional quoting for safety and satisfying newer autotools.  Fix a couple of 80 column violations.

http://llvm-reviews.chandlerc.com/D333



Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org>
llvm-svn: 173877

Patch by Sasa Stankovic.

llvm-svn: 173863

Patch by Sasa Stankovic.

llvm-svn: 173862

llvm-svn: 173857

Changing ARMBaseTargetMachine to return ARMTargetLowering intead of
the generic one (similar to x86 code).

Tests showing which instructions were added to cast when necessary
or cost zero when not. Downcast to 16 bits are not lowered in NEON,
so costs are not there yet.

llvm-svn: 173849

llvm-svn: 173847

llvm-svn: 173845

llvm-svn: 173842

Fixes PR14447 and PR9034. Patch by Nico Rieck!

llvm-svn: 173839

to a command line switch.

llvm-svn: 173837

llvm-svn: 173836

llvm-svn: 173834

llvm-svn: 173833

llvm-svn: 173832