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5162 Commits

Author SHA1 Message Date
Chris Lattner
b44b3666f9 Fix PR3826 - InstComb assert with vector shift, by not calling ComputeNumSignBits on a vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67211 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-18 16:32:19 +00:00
Chris Lattner
f023b54bcd add an assertion to make it clear that PHI nodes are not allowed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67210 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-18 16:23:56 +00:00
Zhou Sheng
b0c4199a55 Explicitly check for StoreInst, do not lose the chance to delete 
unused loads or bitcasts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67202 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-18 12:48:48 +00:00
Zhou Sheng
16767c6b49 Revert my previous change on Local.cpp, instead, fix the bug on scalarrepl. 
If the instruction has no users, it is also not only used by debug info 
and should not be deleted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67194 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-18 10:13:08 +00:00
Zhou Sheng
df95a2f6a9 Fix a bug. 
If I->use_empty(), this method should return false.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67180 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-18 07:56:13 +00:00
Chris Lattner
bda0765e07 Fix PR3807 by inserting 'insertelement' instructions in the normal dest of 
an invoke instead of after the invoke (in its block), which is invalid.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67139 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-18 00:31:45 +00:00
Chris Lattner
b7e64ac3ac LSR shouldn't ever try to hack on integer IV's larger than 64-bits. Right now 
it is not APInt clean, but even when it is it needs to be evaluated carefully
to determine whether it is actually profitable.

This fixes a crash on PR3806


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67134 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-17 23:58:30 +00:00
Chris Lattner
46d232d4bc Remove a condition which is always true. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67089 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-17 17:55:15 +00:00
Dale Johannesen
6b23339502 Fix a debug info dependency in jump threading. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67064 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-17 00:38:24 +00:00
Dale Johannesen
4425240dbc Fix -strip-debug-declare to work when there are 
llvm.global.variable's but no llvm.declare's.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66977 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-13 22:59:47 +00:00
Evan Cheng
fc0b80d974 Fix PR3784: If the source of a phi comes from a bb ended with an invoke, make sure the copy is inserted before the try range (unless it's used as an input to the invoke, then insert it after the last use), not at the end of the bb. 
Also re-apply r66140 which was disabled as a workaround.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66976 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-13 22:59:14 +00:00
Bill Wendling
9a507cd915 Revert r66920. It was causing failures in the self-hosting buildbot (in release 
mode).

Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/dg.exp ...
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll
Failed with signal(SIGBUS) at line 1
while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll -bugpoint-crashcalls -silence-passes > /dev/null
0   bugpoint          0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85
1   bugpoint          0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706
2   libSystem.B.dylib 0x92f112bb _sigtramp + 43
3   libSystem.B.dylib 0xffffffff _sigtramp + 1829694831
4   bugpoint          0x00021d1c main + 92
5   bugpoint          0x00002106 start + 54
6   bugpoint          0x00000004 start + 18446744073709543220
Stack dump:
0.    Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll -bugpoint-crashcalls -silence-passes 

FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll
Failed with signal(SIGBUS) at line 1
while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll -dce -bugpoint-deletecalls -simplifycfg -silence-passes
0   bugpoint          0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85
1   bugpoint          0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706
2   libSystem.B.dylib 0x92f112bb _sigtramp + 43
3   libSystem.B.dylib 0xffffffff _sigtramp + 1829694831
4   bugpoint          0x00021d1c main + 92
5   bugpoint          0x00002106 start + 54
6   bugpoint          0x00000006 start + 18446744073709543222
Stack dump:
0.    Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll -dce -bugpoint-deletecalls -simplifycfg -silence-passes 

FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll
Failed with signal(SIGBUS) at line 1
while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll  -bugpoint-crashcalls -silence-passes
0   bugpoint          0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85
1   bugpoint          0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706
2   libSystem.B.dylib 0x92f112bb _sigtramp + 43
3   libSystem.B.dylib 0xffffffff _sigtramp + 1829694831
4   bugpoint          0x00021d1c main + 92
5   bugpoint          0x00002106 start + 54
Stack dump:
0.    Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll -bugpoint-crashcalls -silence-passes 

--- Reverse-merging (from foreign repository) r66920 into '.':
U    include/llvm/Support/CallSite.h
U    include/llvm/Instructions.h
U    lib/Analysis/IPA/GlobalsModRef.cpp
U    lib/Analysis/IPA/Andersens.cpp
U    lib/Bitcode/Writer/BitcodeWriter.cpp
U    lib/VMCore/Instructions.cpp
U    lib/VMCore/Verifier.cpp
U    lib/VMCore/AsmWriter.cpp
U    lib/Transforms/Utils/LowerInvoke.cpp
U    lib/Transforms/Scalar/SimplifyCFGPass.cpp
U    lib/Transforms/IPO/PruneEH.cpp
U    lib/Transforms/IPO/DeadArgumentElimination.cpp



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66953 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-13 21:15:59 +00:00
Dale Johannesen
d1c135c6e6 One more place where debug info affects codegen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66930 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-13 19:23:20 +00:00
Gabor Greif
b14cda3c0d Second installment of "BasicBlock operands to the back" 
changes.

For InvokeInst now all arguments begin at op_begin().
The Callee, Cont and Fail are now faster to get by
access relative to op_end().

This patch introduces some temporary uglyness in CallSite.
Next I'll bring CallInst up to a similar scheme and then
the uglyness will magically vanish.

This patch also exposes all the reliance of the libraries
on InvokeInst's operand ordering. I am thinking of taking
care of that too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66920 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-13 18:27:29 +00:00
Bill Wendling
0582ae99ba Oops...I committed too much. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66867 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-13 04:39:26 +00:00
Bill Wendling
c7a09ab311 Temporarily XFAIL this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66866 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-13 04:37:11 +00:00
Dale Johannesen
990afedb3a Fix one more place where debug info affected 
codegen (speculative execution).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66859 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-13 01:05:24 +00:00
Dale Johannesen
8483e54837 Previous debug info fix to this code wasn't quite 
right; did the wrong thing when there are exactly 11
non-debug instructions, followed by debug info.
Remove a FIXME since it's apparently been fixed along the way.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66840 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-12 23:18:09 +00:00
Duncan Sands
58256f83c8 Revert commit 66140 since it caused several failures 
in the Ada testcase.  Reverting this only covers up
the real problem, which is a nasty conceptual difficulty
in the phi elimination pass: when eliminating phi nodes
in landing pads, the register copies need to come before
the invoke, not at the end of the basic block which is
too late...  See PR3784.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66826 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-12 21:13:42 +00:00
Dale Johannesen
c81f5445a7 There already was a class to force deterministic 
sorting of ConstantInt's; unreinvent wheel.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66824 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-12 21:01:11 +00:00
Dale Johannesen
80b8a62fda Another missing check for debug intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66800 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-12 17:42:45 +00:00
Dale Johannesen
1379cadf8d Allow for switch values bigger than 64 bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66751 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-12 01:20:06 +00:00
Dale Johannesen
a9537cf3fc Fix some nondeterministic behavior when forwarding 
from a switch table.  Multiple table entries that
branch to the same place were being sorted by the
pointer value of the ConstantInt*; changed to sort
by the actual value of the ConstantInt.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66749 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-12 01:00:26 +00:00
Dale Johannesen
a891518c4d Skip interleaved debug info when fast-forwarding through 
allocations.  Apparently the assumption is there is an
instruction (terminator?) following the allocation so I
am allowing the same assumption.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66716 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-11 22:19:43 +00:00
Anton Korobeynikov
26d6e21c53 I should definitely read make docs someday :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66699 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-11 20:40:15 +00:00
Anton Korobeynikov
317bc24cd6 Unbreak the build. Dunno, why it did not fail on mingw :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66692 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-11 20:16:05 +00:00
Anton Korobeynikov
ad9d21a952 Disable plugins / shared stuff generation on windows targets. 
This fixes fallout from recent PIC/delibtoolize changes and unbreaks
build on cygming.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66686 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-11 19:49:42 +00:00
Dale Johannesen
8aa90feb3d Don't consider debug intrinsics when checking 
whether a callee to be inlined is a leaf.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66588 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-10 22:20:02 +00:00
Dale Johannesen
ff278b11bf Removing a dead debug intrinsic shouldn't trigger 
another instcombine pass if we weren't going to make
one without debug info.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66576 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-10 21:19:49 +00:00
Devang Patel
9200c89968 Ignore dbg info, while estimating size of jump through block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66554 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-10 18:00:05 +00:00
John Criswell
090c0a2ffd Do not attempt to do parial redundancy elimination on void values. 
Also fixed a punctuation error in the header comment.
This fixes PR3775.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66542 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-10 15:04:53 +00:00
Evan Cheng
8c7848f17f If a function is marked alwaysinline, it must be inlined (possibly for correctness). Do so even if the callee has dynamic alloca and the caller doesn't. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66539 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-10 07:57:50 +00:00
Devang Patel
412a446974 Ignore debug info while evaluating function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66490 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 23:04:12 +00:00
Dan Gohman
9d10086797 Don't record the increment instruction; just recompute it from the Phi 
if needed. This simplifies the code a little, and is needed for an
upcoming refactoring.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66479 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 22:04:01 +00:00
Devang Patel
d07128c906 Remove llvm.dbg.global_variables also. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66471 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 21:32:28 +00:00
Dan Gohman
3cfe6a4bc2 Fix a few more places where induction variable types were used 
where memory access types are needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66470 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 21:22:12 +00:00
Dan Gohman
bb5b49cb8d Use ReplacedTy instead of recomputing the same value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66469 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 21:19:58 +00:00
Dan Gohman
0daeed270b Use LoopInfo's getLoopLatch() instead of doing what it does manualy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66467 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 21:14:16 +00:00
Dan Gohman
53f2ae268a Don't use an induction variable type as a memory access type. 
Use VoidTy instead, to be properly conservative.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66463 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 21:04:19 +00:00
Dan Gohman
21e7722868 Factor out the code that determines the memory access type 
of an instruction into a helper function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66460 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 21:01:17 +00:00
Devang Patel
23e528be80 Add helper pass to remove llvm.dbg.declare intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66454 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 20:49:37 +00:00
Dan Gohman
f7912df4cb Move the sorting of the StrideOrder array earlier so that it doesn't 
have to be done twice.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66449 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 20:46:50 +00:00
Dan Gohman
9f4ac31a94 Delete the isOnlyStride argument, which is unused. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66446 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 20:41:15 +00:00
Dan Gohman
80b0f8c062 Tidy some LSR debug output: announce the loop it's about to process 
before it does any processing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66443 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 20:34:59 +00:00
Duncan Sands
ee199f72bb This debug info special case should no longer 
be needed now that these intrinsics are marked
as not accessing memory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66420 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 11:57:08 +00:00
Chris Lattner
d7168ddb11 reimplement AliasSetTracker in terms of DenseMap instead of hash_map, 
hopefully no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66398 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 05:11:09 +00:00
Nick Lewycky
d694a789cb Keep calling-convention and tail-call bit when creating new invoke or call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66384 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-08 19:02:17 +00:00
Nick Lewycky
4bfba9da0a Fix comments, pointed out by Duncan Sands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66381 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-08 17:08:09 +00:00
Nick Lewycky
199aa3c09c Mark function returns as noalias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66369 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-08 06:20:47 +00:00
Chris Lattner
29e641761e teach SROA to handle promoting vector allocas with a memset into them into 
a vector type instead of into an integer type.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66368 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-08 04:17:04 +00:00
Chris Lattner
c570487d45 Enhance SROA to "promote to scalar" allocas which are 
memcpy/memmove'd into or out of.  This fixes a serious
perf issue that Nate ran into.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66366 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-08 04:04:21 +00:00
Chris Lattner
dfe964ce8c change the MemIntrinsic get/setAlignment method to take an unsigned 
instead of a Constant*, which is what the clients of it really want.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66364 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-08 03:59:00 +00:00
Chris Lattner
8e10844ad0 use MemTransferInst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66362 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-08 03:37:35 +00:00
Chris Lattner
3ce5e887ae Introduce a new MemTransferInst pseudo class, which is a common 
parent between MemCpyInst and MemMoveInst, simplify some code to
use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66361 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-08 03:37:16 +00:00
Chris Lattner
6f6923fd4f fix a serious pessimization that Tron on IRC pointed out where we would 
"boolify" pointers, generating really awful code because getting the pointer
value requires a load itself.  Before:

_foo:
	movb	$1, _X.b
	ret
_get:
	xorl	%ecx, %ecx
	movb	_X.b, %al
	testb	%al, %al
	movl	$_Y, %eax
	cmove	%ecx, %eax
	ret

With the xform disabled:

_foo:
	movl	$_Y, _X
	ret
_get:
	movl	_X, %eax
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66351 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-07 23:32:02 +00:00
Duncan Sands
667d4b8de6 Introduce new linkage types linkonce_odr, weak_odr, common_odr 
and extern_weak_odr.  These are the same as the non-odr versions,
except that they indicate that the global will only be overridden
by an *equivalent* global.  In C, a function with weak linkage can
be overridden by a function which behaves completely differently.
This means that IP passes have to skip weak functions, since any
deductions made from the function definition might be wrong, since
the definition could be replaced by something completely different
at link time.   This is not allowed in C++, thanks to the ODR
(One-Definition-Rule): if a function is replaced by another at
link-time, then the new function must be the same as the original
function.  If a language knows that a function or other global can
only be overridden by an equivalent global, it can give it the
weak_odr linkage type, and the optimizers will understand that it
is alright to make deductions based on the function body.  The
code generators on the other hand map weak and weak_odr linkage
to the same thing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66339 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-07 15:45:40 +00:00
Dale Johannesen
3a56d14641 Fix another case where debug info interferes with 
an optimization.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66288 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 21:08:33 +00:00
Chris Lattner
57c03831cc add a bunch more passes to the C bindings (PR3734), patch by 
Lennart Augustsson!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66272 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 16:52:18 +00:00
Duncan Sands
fc5940d2a0 While thinking about the one-definition-rule and trying 
to find a tiny mouse hole to squeeze through, it struck
me that globals without a name can be considered internal
since they can't be referenced from outside the current
module.  This patch makes GlobalOpt give them internal
linkage.  Also done for aliases even though they always
have names, since in my opinion anonymous aliases should
be allowed for consistency with global variables and
functions.  So if that happens one day, this code is ready!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66267 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 10:21:56 +00:00
Devang Patel
00e389c8c8 While converting an aggregate to scalare, ignore and remove aggregate's debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66262 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 07:03:54 +00:00
Devang Patel
06b1e67d44 While hoisting instruction to speculatively execute simple bb, ignore dbg intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66255 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 06:00:17 +00:00
Chris Lattner
0070ce511e this wasn't intended to go in. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66252 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 05:42:30 +00:00
Chris Lattner
cc14d25dd9 Change various llvm utilities to use PrettyStackTraceProgram in 
their main routines.  This makes the tools print their argc/argv
commands if they crash.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66248 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 05:34:10 +00:00
Devang Patel
3f43a7021f Do not count DbgInfoIntrinsic while estimating loop header size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66245 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 03:51:30 +00:00
Devang Patel
c64bc16cae Skip DbgInfoIntrinsic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66244 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 02:59:27 +00:00
Dale Johannesen
03afd02ca2 Don't assign rank numbers to debug intrinsic "calls". 
This is needed so debug info doesn't change codegen.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66235 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 01:41:59 +00:00
Devang Patel
771281f180 Revert 66224. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66233 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 01:39:36 +00:00
Devang Patel
743cdf8edf Revert rev. 66167. 
We are still not out of woods yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66232 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 01:37:41 +00:00
Evan Cheng
67fca63da2 SRThreshold is meant to be inclusive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66227 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 00:56:43 +00:00
Dale Johannesen
2511abf6e7 Tweak the check for promotable alloca's to handle 
debug intrinsics correctly.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66225 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 00:42:50 +00:00
Devang Patel
f70bda2f81 Do not let debug info prevert globalopt from shriking a global vars to boolean. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66224 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 00:21:00 +00:00
Devang Patel
c79e118247 Add "check/remove dbg var" helper routines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66223 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-06 00:19:37 +00:00
Devang Patel
5049600672 GlobalOpt only process non constant local GVs while optimizing global vars. 
If non constant local GV named A is used by a constant local GV named B (e.g. llvm.dbg.variable) and B is not used by anyone else then eliminate A as well as B.

In other words, debug info should not interfere in removal of unused GV.
--This life, and those below, will be ignored--

M    test/Transforms/GlobalOpt/2009-03-03-dbg.ll
M    lib/Transforms/IPO/GlobalOpt.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66167 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-05 18:12:02 +00:00
Evan Cheng
6fb8f421ee Do not split edges to EH landing pads. It will cause code size explosion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66140 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-05 06:31:26 +00:00
Dale Johannesen
4084c4ee34 Fix another case where debug info was affecting 
codegen.  I convinced myself it was OK to skip all
pointer bitcasts here too.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66122 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-05 02:06:48 +00:00
Bill Wendling
e562149cdb Add comment to emphasize that the while body is empty. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66115 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-05 01:08:35 +00:00
Dale Johannesen
a0a6637b25 Fix another case where a dbg.declare meant something 
had 2 uses instead of 1.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66112 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-05 00:39:02 +00:00
Bill Wendling
380c3ca093 Temporarily revert r65994. It was causing rdar://6646455. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66083 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 22:02:09 +00:00
Dale Johannesen
6129e24e49 Re-commit 65975 and a fix for the problem that 
was causing llvm-gcc to fail to build.  I've
verified it bootstraps now; good enough for me.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66073 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 21:24:04 +00:00
Dan Gohman
fd0339933b Fix this comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66065 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 20:50:23 +00:00
Dan Gohman
bc10b8c6c7 Add an assertion for a condition that's always true, and not 
immediately obvious.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66062 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 20:49:01 +00:00
Chris Lattner
88fe1ad187 complete comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66055 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 19:23:25 +00:00
Chris Lattner
0ff83ab985 this wasn't intended to be committed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66054 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 19:22:30 +00:00
Chris Lattner
1541e0f7da Fix PR3720 by properly propagating alignment information from memcpy/memmove 
onto element accesses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66053 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 19:20:50 +00:00
Dale Johannesen
0744f09efc Revert unintended commmit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66001 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 02:09:48 +00:00
Dale Johannesen
d9c05d7711 Skip ptr-to-ptr bitcasts when counting in another case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66000 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 02:06:53 +00:00
Dale Johannesen
cdb16aa5ab Always skip ptr-to-ptr bitcasts when counting, 
per Chris' suggestion.  Slightly faster.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65999 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 01:53:05 +00:00
Devang Patel
7f6179d1d8 If a global constant is dead then global's debug info should not prevent the optimizer in deleting the global. And while deleting global, delete global's debug info also. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65994 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 01:22:23 +00:00
Dale Johannesen
0d6596b7bf Make my earlier patch to skip debug intrinsics 
when counting work; it was only off by 1.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65993 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-04 01:20:34 +00:00
Dale Johannesen
127a7936de Marking debug info intrinsics as not touching memory 
caused them to be considered trivially dead.  Fix this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65979 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 23:30:00 +00:00
Dale Johannesen
4ded40a44d Instruction counters must skip the bitcasts that 
feed into llvm.dbg.declare nodes, as well as
the debug directives themselves.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65976 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 22:36:47 +00:00
Devang Patel
9adb01cbc3 Recursively remove dead argument while removing llvm.dbg.declare intrinsic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65971 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 21:31:02 +00:00
Dale Johannesen
4945c65784 When removing a store to an alloca that has only one 
use, check also for the case where it has two uses,
the other being a llvm.dbg.declare.  This is needed so
debug info doesn't affect codegen.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65970 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 21:26:39 +00:00
Bill Wendling
1c85503e38 Remove accidental check-ins in r65960. :-( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65961 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 19:25:16 +00:00
Bill Wendling
3aaf5d9933 Use > instead of >=. We want to promote aggregates of 128-bytes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65960 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 19:18:49 +00:00
Bill Wendling
5a377cb27b Reapply r65755, but reversing "<" to ">=". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65945 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 12:12:58 +00:00
Dan Gohman
0f8b53f19d Fix a bunch of Doxygen syntax issues. Escape special characters, 
and put @file directives on their own comment line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65920 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 02:55:14 +00:00
Dale Johannesen
acb51a3037 Don't count DebugInfo instructions in another limit 
(lest they affect codegen).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65915 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 01:43:03 +00:00
Dale Johannesen
bd8e650876 When sinking an insn in InstCombine bring its debug 
info with it.
Don't count debug info insns against the scan maximum
in FindAvailableLoadedValue (lest they affect codegen).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65910 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 01:09:07 +00:00
Devang Patel
cd11991203 Ignore debug info intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65908 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-03 00:28:44 +00:00