llvm-svn: 100145

llvm-svn: 100144

Add some switches helpful for debugging:

-print-before=<Pass Name>

Dump IR before running pass <Pass Name>.

-print-before-all

Dump IR before running each pass.

-print-after-all

Dump IR after running each pass.

These are helpful when tracking down a miscompilation.  It is easy to
get IR dumps and do diffs on them, etc.

To make this work well, add a new getPrinterPass API to Pass so that
each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass
suitable for dumping out the kind of object the Pass works on.

llvm-svn: 100143

llvm-svn: 100137

Do not eagerly record known previous location. DBG_VALUE may not cause a new label due to one or other reason.

llvm-svn: 100134

llvm-svn: 100133

llvm-svn: 100132

llvm-svn: 100131

one place.  This removes the template function added in svn 94690.

llvm-svn: 100130

take'id' or return 'id' in their type. Fixes radar 7814131.

llvm-svn: 100129

blow out the stack for really big functions.  Start by fixing an easy case.

llvm-svn: 100126

an object or function. Our previous checking was too lax, and ended up
allowing missing or extraneous address-of operators, among other
evils. The new checking provides better diagnostics and adheres more
closely to the standard.

Fixes PR6563 and PR6749.

llvm-svn: 100125

Clang++ support, even in "Production" mode (for testing purposes).

llvm-svn: 100119

- Do not try to infer GV alignment unless its type is sized. It's not possible to infer alignment if it has opaque type.

llvm-svn: 100118

llvm-svn: 100117

Update comment, rename a local variable.

llvm-svn: 100116

llvm-svn: 100115

llvm-svn: 100107

- Use a RAII object to close the FD.
- Use sys::StrError instead of thread-unsafe strerror calls.
- Recover gracefully if read returns zero. This works around an issue on
  DragonFlyBSD where /dev/null has an st_size of 136 but we can't read 136 bytes
  from it.

llvm-svn: 100106

Fixes PR6755.

llvm-svn: 100105

llvm-svn: 100101

is necessary. Inherits from new templated baseclass CallSiteBase<>
which is highly customizable. Base CallSite on it too, in a configuration
that allows full mutation.
Adapt some call sites in analyses to employ ImmutableCallSite.

llvm-svn: 100100

Patch by Jordy Rose.

llvm-svn: 100099

llvm-svn: 100098

patch back in r94322.

llvm-svn: 100097

of raw mdnodes.  This allows frontends to specify debug
locations without ever creating an MDNode for the DILocation.

This requires a corresponding clang/llvm-gcc change which
I'll try to commit as simultaneously as possible.

llvm-svn: 100095

llvm-svn: 100093

llvm-svn: 100092

1. Makes it possible to lower with floating point loads and stores.
2. Avoid unaligned loads / stores unless it's fast.
3. Fix some memcpy lowering logic bug related to when to optimize a
   load from constant string into a constant.
4. Adjust x86 memcpy lowering threshold to make it more sane.
5. Fix x86 target hook so it uses vector and floating point memory
   ops more effectively.
rdar://7774704

llvm-svn: 100090

llvm-svn: 100089

being a TrackingVH<MDNode> to a NewDebugLoc, shrinking 
sizeof(Instruction) a lot, and providing clients the ability
to deal with locations in terms of NewDebugLoc instead of
having to deal with Metadata.  This is still fully compatible
with all clients that *do* use MDNodes for everything of
course.

No functionality change.

llvm-svn: 100088

llvm-svn: 100087

to used deferred resolution instead of creating a temporary
node + rauw.  There is no reason to create the temporary
mdnode, then do rauw, then destroy it.

llvm-svn: 100086

MD used here isn't valid for !dbg.

llvm-svn: 100085

entry in the Scope+InlinedAt drops to a non-canonical form,
we need to reset the idx member of both VH's to 0.

llvm-svn: 100084

llvm-svn: 100083

llvm-svn: 100082

llvm-svn: 100081

llvm-svn: 100080

llvm-svn: 100079