llvm-svn: 94243

this makes the code work transparently the same
whether they're there or not.

llvm-svn: 94240

pretty printing encoding comments and eliminates redundancy on
the client side.  We now get pretty dwarf like this again:

        .byte   255                                         ## @LPStart Encoding = omit
        .byte   0                                           ## @TType Encoding = absptr
        .byte   0x28                                        ## @TType base offset
        .byte   3                                           ## Call site Encoding = udata4
        .byte   0x1a                                        ## Call site table size
...

llvm-svn: 94239

and much more accurately describes what it is all about.

llvm-svn: 94233

llvm-svn: 94232

llvm-svn: 94230

llvm-svn: 94228

llvm-svn: 94227

output.  An example:

        .align  4, 0x90
LBB1_5:                                                     ## %while.cond3
                                                            ##   Parent Loop BB1_1 Depth=1
                                                            ## =>  This Loop Header: Depth=2
                                                            ##       Child Loop BB1_8 Depth 3
                                                            ##       Child Loop BB1_6 Depth 3

llvm-svn: 94225

For loop headers, print Inner loop along with the other stuff so it doesn't take
an extra line.  We now get stuff like this:

LBB1_4:                                                     ## %land.end
                                                            ##   in Loop: Header=BB1_1 Depth=1
        notb    %al
        testb   $1, %al
        jne     LBB1_8

and:

LBB1_6:                                                     ## %while.cond7
                                                            ## Inner Loop Header: Depth=3
                                                            ##     Inside Loop BB1_5 Depth 2
                                                            ##   Inside Loop BB1_1 Depth 1

which still isn't great for loop headers, but is much less verbose.

llvm-svn: 94221

comment emission stuff.  I'm going to rewrite this though because the
current output doesn't make sense.

llvm-svn: 94215

AddComment and GetCommentOS.  Add a blank line between globals
(even in non-verbose mode) to make the assembly more readable.

llvm-svn: 94202

that doesn't want to use twines.

llvm-svn: 94199

llvm-svn: 94190

LoopStrengthReduce, as it's causing too much trouble (even with the
old LoopStrengthReduce code).

llvm-svn: 94172

Switch over the asm-verbose comment for double values to use it.  We now get:

_x:
	.long	343597384                                   ## double 1.231200e+02
	.long	1079953326

For example, note that the comment is on the same line as the .long.  Woo.

llvm-svn: 94166

llvm-svn: 94165

missing ones are libsupport, libsystem and libvmcore.  libvmcore is
currently blocked on bugpoint, which uses EH.  Once it stops using
EH, we can switch it off.

This #if 0's out 3 unit tests, because gtest requires RTTI information.
Suggestions welcome on how to fix this.

llvm-svn: 94164

Teach pre-regalloc scheduler to schedule loads from nearby addresses. It may improve cache locality. This is controlled by -cluster-loads for now.

llvm-svn: 94148

llvm-svn: 94105

llvm-svn: 94097

they reach codegen.

llvm-svn: 94066

order for SjLj style exception handling.

llvm-svn: 94055

normalization needs to take this into account.

llvm-svn: 94046

llvm-svn: 94032

When XDEBUG is enabled, check for SelectionDAG cycles at some key
points.  This will help us find future problems like the one
described in PR6019.

llvm-svn: 94019

llvm-svn: 94010

llvm-svn: 93996

go completely away.

llvm-svn: 93994

llvm-svn: 93993

for tidiness.

llvm-svn: 93992

of int initializers), change some methods to be static functions,
use raw_ostream::write_hex instead of a smallstring dance with 
APValue::toStringUnsigned(S, 16).

llvm-svn: 93991

simplifying the code.

llvm-svn: 93988

4-byte constants if .quad isn't supported.  Switch a bunch of
methods used by the dwarf writer to use OutStreamer.EmitIntValue.

llvm-svn: 93987

llvm-svn: 93986

If a instruction belongs to another function (and not current function) as per debug info attached with the instruction then ignore the dangling lexical scope of this instruction. Such scopes are unreachable.

llvm-svn: 93967

Add some asserts to check SelectionDAG problems earlier.

llvm-svn: 93960

more cases where debug declarations affect
debug line info.

llvm-svn: 93953

that SCEVExpander can produce when running on behalf of LSR.

llvm-svn: 93949

llvm-svn: 93929