Commit Graph

27562 Commits

Author SHA1 Message Date
Dan Gohman
e698696569 Complete the sentance in this comment. I have reservations
about the code it describes, but at least now the comment
is right.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64465 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 17:36:42 +00:00
Duncan Sands
ddd8c450ec If a function only reads memory, then we know that...
it only reads memory!  The other change has no
functional effect, it just seems more logical to
go in order of decreasing knowledge.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64463 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 17:32:26 +00:00
Nick Lewycky
02b6a6a75f Mark strto* as readonly when the endptr is null.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64460 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 17:08:33 +00:00
Nick Lewycky
4c49841f34 On strtod and friends, mark 'endptr' nocapture in the function prototype, and
mark the first argument nocapture if endptr=NULL for each particular call.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64453 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 15:31:46 +00:00
Duncan Sands
e70a6835c4 Reapply r64301. These uses of "inline" can cause strange
link-time failures when building with optimization.  Just
get rid of them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64449 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 09:42:34 +00:00
Evan Cheng
e2b3fdd649 Switch from new[] + delete[] to malloc + free since llvm does not catch C++ exceptions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64448 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 08:24:55 +00:00
Evan Cheng
726135ad1a If new[] fails, return 0 rather then trying to dereference a null pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64444 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 07:54:34 +00:00
Nick Lewycky
8968a07768 Reapply r64300:
Make sure the SCC pass manager initializes any contained
function pass managers.  Without this, simplify-libcalls
would add nocapture attributes when run on its own, but
not when run as part of -std-compile-opts or similar.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64443 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 07:15:53 +00:00
Nick Lewycky
826f7cebfd BasicAA was making the assumption that a local allocation which hadn't escaped
couldn't ever be the return of call instruction. However, it's quite possible
that said local allocation is itself the return of a function call. That's
what malloc and calloc are for, actually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64442 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 07:06:27 +00:00
Dan Gohman
9194e8b0c8 Fix the code that checked if a SCEVAddRecExpr Start contains an
addrec in a different loop to check the value being added to
the accumulated Start value, not the Start value before it has
the new value added to it. This prevents LSR from going crazy
on the included testcase. Dale, please review.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64440 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 03:58:31 +00:00
Dale Johannesen
948175785d Remove non-DebugLoc versions of BuildMI from IA64, Mips.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64438 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 02:34:39 +00:00
Dale Johannesen
8d13f8f104 Remove non-DebugLoc versions of BuildMI from X86.
There were some that might even matter in X86FastISel.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64437 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 02:33:27 +00:00
Dale Johannesen
0b4581f16c missed file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64436 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 02:32:04 +00:00
Dale Johannesen
d552eee4a0 Remove non-DebugLoc versions of buildMI from Sparc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64435 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 02:31:35 +00:00
Dale Johannesen
01b36e6436 Remove non-DebugLoc versions of BuildMI from Alpha and Cell.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64433 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 02:30:42 +00:00
Dale Johannesen
bd9ef18f74 Remove refs to non-DebugLoc version of BuildMI from XCore, PIC16.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64432 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 02:29:03 +00:00
Dale Johannesen
536a2f1f84 Remove refs to non-DebugLoc version of BuildMI from PowerPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64431 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 02:27:39 +00:00
Dale Johannesen
8a43d98644 and one more file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64430 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 02:26:21 +00:00
Dale Johannesen
b67284057e Remove refs to non-DebugLoc versions of BuildMI from ARM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64429 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 02:25:56 +00:00
Bill Wendling
92c1e12647 Revert this. It was breaking stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64428 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 02:16:35 +00:00
Bill Wendling
54fc7d6714 Turn off the old way of handling debug information in the code generator. Use
the new way, where all of the information is passed on SDNodes and machine
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64427 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 02:01:04 +00:00
Dan Gohman
bc511725f0 Fix LSR's IV sorting function to explicitly sort by bitwidth
after sorting by stride value. This prevents it from missing
IV reuse opportunities in a host-sensitive manner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64415 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13 00:26:43 +00:00
Dale Johannesen
c5b5051357 Check in missing file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64410 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 23:24:44 +00:00
Dale Johannesen
21b5541814 Eliminate a couple of non-DebugLoc BuildMI variants.
Modify callers.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64409 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 23:08:38 +00:00
Dan Gohman
c2390b14c9 Teach IndVarSimplify to optimize code using the C "int" type for
loop induction on LP64 targets. When the induction variable is
used in addressing, IndVars now is usually able to inserst a
64-bit induction variable and eliminates the sign-extending cast.
This is also useful for code using C "short" types for
induction variables on targets with 32-bit addressing.

Inserting a wider induction variable is easy; the tricky part is
determining when trunc(sext(i)) expressions are no-ops. This
requires range analysis of the loop trip count. A common case is
when the original loop iteration starts at 0 and exits when the
induction variable is signed-less-than a fixed value; this case
is now handled.

This replaces IndVarSimplify's OptimizeCanonicalIVType. It was
doing the same optimization, but it was limited to loops with
constant trip counts, because it was running after the loop
rewrite, and the information about the original induction
variable is lost by that point.

Rename ScalarEvolution's executesAtLeastOnce to
isLoopGuardedByCond, generalize it to be able to test for
ICMP_NE conditions, and move it to be a public function so that
IndVars can use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64407 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 22:19:27 +00:00
Nate Begeman
0f123cf732 Add suppport for ConstantExprs of shufflevectors whose result type is not equal to the
type of the vectors being shuffled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64401 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 21:28:33 +00:00
Dale Johannesen
78e3e521cd Arrange to print constants that match "n" and "i" constraints
in inline asm as signed (what gcc does).  Add partial support
for x86-specific "e" and "Z" constraints, with appropriate
signedness for printing.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64400 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 20:58:09 +00:00
Dan Gohman
c83324682f Add a utility function to LoopInfo to return the exit block
when the loop has exactly one exit, and make use of it in
LoopIndexSplit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64388 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 18:08:24 +00:00
Chris Lattner
8c4d1b2bcf fix PR3538 for ARM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64384 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 17:38:23 +00:00
Chris Lattner
f902d246b6 fix PR3538 for PPC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64383 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 17:37:15 +00:00
Chris Lattner
1823c92aa7 fix the X86 backend to just drop llvm.declare nodes for VLAs instead of
leaving them in the DAG and then getting selection errors.  This is a 
fix for PR3538.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64382 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 17:33:11 +00:00
Dan Gohman
4ed76e76bb Adjust the sizes for a few SmallVectors to reflect their usage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64381 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 17:29:01 +00:00
Chris Lattner
14c4c1ec0e make fast isel fall back to selectiondags for VLA llvm.declare intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 17:23:20 +00:00
Dan Gohman
d0ffa73924 This code doesn't actually use the ExitingBlocks list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64376 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 16:36:26 +00:00
Evan Cheng
8679119f4b It's (currently) not safe to keep certain physical registers live across basic blocks, e.g. x86 fp stack registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64374 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 10:32:17 +00:00
Evan Cheng
f2b14715d1 Oops. Last second clean up messed things up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64373 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 09:52:13 +00:00
Evan Cheng
6d209c413e If availability info is kept when fallthrough into a bb, add the available registers to live-in set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 09:43:23 +00:00
Evan Cheng
8182347d70 Replace one of burr scheduling heuristic with something more sensible. Now calcMaxScratches simply compute the number of true data dependencies. This actually improve a couple of tests in dejagnu suite as many tests in llvm nightly test suite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64369 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 08:59:45 +00:00
Julien Lerouge
9430fe7092 Fix MingW build, patch by Kenneth Boyd!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64366 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 07:39:10 +00:00
Chris Lattner
af9985c6b9 Fix a nasty bug (PR3550) where the inline pass could incorrectly mark
calls with the tail marker when inlining them through an invoke.  Patch,
testcase, and perfect analysis by Jay Foad!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64364 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 07:06:42 +00:00
Chris Lattner
0aefc0eb2c improve naming of values in GVN, patch by Jay Foad!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64363 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 07:00:35 +00:00
Chris Lattner
65c02fbf9b fix PR3537: if resetting bbi back to the start of a block, we need to
forget about already inserted expressions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64362 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 06:56:08 +00:00
Nick Lewycky
b7c9eeeede Don't mark all args to strtod and friends as nocapture.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64352 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 03:18:34 +00:00
Bill Wendling
d1c321a89a Move debug loc info along when the spiller creates new instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64342 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12 00:02:55 +00:00
Evan Cheng
f412f7c417 Apparently some MachineBasicBlock's don't have corresponding llvm basic blocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64340 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 23:42:39 +00:00
Evan Cheng
ce7f5a1e50 Remove a bogus assertion. It's possible a live-in available value is used by a previous instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64339 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 23:41:57 +00:00
Nate Begeman
7b25467d06 the two non-mask arguments to a shufflevector must be the same width, but they do not have to be the same
width as the result value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64335 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 22:36:25 +00:00
Bill Wendling
fbef3101a5 Propagate DebugLoc info for spiller call-backs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64329 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 21:51:19 +00:00
Dan Gohman
c7fa16f782 Fix a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64328 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 21:32:08 +00:00
Dan Gohman
c8db34cb07 Don't use special heuristics for nodes with no data predecessors
unless they actually have data successors, and likewise for nodes
with no data successors unless they actually have data precessors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64327 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 21:29:39 +00:00
Dan Gohman
cc994ea36b Delete the heuristic for non-livein CopyFromReg nodes. Non-liveinness
is determined by whether the node has a Flag operand. However, if the
node does have a Flag operand, it will be glued to its register's
def, so the heuristic would end up spuriously applying to whatever
node is the def.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64319 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 20:25:59 +00:00
Dan Gohman
d293e0d2dc Don't try to set an EFLAGS operand to dead if no instruction was created.
This fixes a bug introduced by r61215.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64316 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 19:50:24 +00:00
Dale Johannesen
85b0edec46 Make a transformation added in 63266 a bit less aggressive.
It was transforming (x&y)==y to (x&y)!=0 in the case where
y is variable and known to have at most one bit set (e.g. z&1).
This is not correct; the expressions are not equivalent when y==0.
I believe this patch salvages what can be salvaged, including
all the cases in bt.ll.  Dan, please review.
Fixes gcc.c-torture/execute/20040709-[12].c



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64314 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 19:19:41 +00:00
Bill Wendling
905c7e9a04 Revert r64300 and r64301. These were causing the following errors respectively:
During llvm-gcc bootstrap:

Undefined symbols:
  "llvm::FPPassManager::doFinalization(llvm::Module&)", referenced from:
      (anonymous namespace)::CGPassManager::doFinalization(llvm::CallGraph&, llvm::Module&)
        in libLLVMipa.a(CallGraphSCCPass.o)
  "llvm::FPPassManager::doInitialization(llvm::Module&)", referenced from:
      (anonymous namespace)::CGPassManager::doInitialization(llvm::CallGraph&, llvm::Module&)
        in libLLVMipa.a(CallGraphSCCPass.o)
ld: symbol(s) not found
collect2: ld returned 1 exit status
make[3]: *** [/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore.roots/llvmCore~obj/obj-llvm/Release/bin/opt] Error 1

During an LLVM release build:

/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/Release/bin/tblgen -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/lib/Target/X86 -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/include -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/include -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/lib/Target -gen-register-desc -o  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/lib/Target/X86/Release/X86GenRegisterInfo.inc.tmp /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/lib/Target/X86/X86.td
llvm[3]: Building X86.td instruction names with tblgen
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/Release/bin/tblgen -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/lib/Target/X86 -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/include -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/include -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/lib/Target -gen-instr-enums -o  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/lib/Target/X86/Release/X86GenInstrNames.inc.tmp /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/lib/Target/X86/X86.td
llvm[3]: Building X86.td instruction information with tblgen
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/Release/bin/tblgen -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/lib/Target/X86 -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/include -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/include -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/lib/Target -gen-instr-desc -o  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/lib/Target/X86/Release/X86GenInstrInfo.inc.tmp /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/lib/Target/X86/X86.td
llvm[3]: Building X86.td assembly writer with tblgen
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/Release/bin/tblgen -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/lib/Target/X86 -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/include -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/include -I  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/lib/Target -gen-asm-writer -o  /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/lib/Target/X86/Release/X86GenAsmWriter.inc.tmp /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/lib/Target/X86/X86.td
llvm[3]: Compiling InstructionCombining.cpp for Release build 
if /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~dst/Developer/usr/bin/llvm-g++-4.2 -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/lib/Transforms/Scalar -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/lib/Transforms/Scalar  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -O3  -fno-exceptions  -Woverloaded-virtual -pedantic -Wall -W -Wwrite-strings -Wno-long-long -Wunused -Wno-unused-parameter  -fstrict-aliasing -Wstrict-aliasing -c -MMD -MP -MF "/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/lib/Transforms/Scalar/Release/InstructionCombining.d.tmp" -MT "/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/lib/Transforms/Scalar/Release/InstructionCombining.lo" -MT "/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/lib/Transforms/Scalar/Release/InstructionCombining.o" -MT "/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/lib/Transforms/Scalar/Release/InstructionCombining.d" /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/lib/Transforms/Scalar/InstructionCombining.cpp -o /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/lib/Transforms/Scalar/Release/InstructionCombining.o ; \
           then /bin/mv -f "/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/lib/Transforms/Scalar/Release/InstructionCombining.d.tmp" "/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.sh.build/lib/Trans



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64311 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 18:19:24 +00:00
Duncan Sands
b91a2a17d3 These uses of "inline" can cause strange link-time
failures when building with optimization.  Just get
rid of them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64301 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 12:25:15 +00:00
Duncan Sands
af068750a7 Make sure the SCC pass manager initializes any contained
function pass managers.  Without this, simplify-libcalls
would add nocapture attributes when run on its own, but
not when run as part of -std-compile-opts or similar.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64300 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 09:58:43 +00:00
Evan Cheng
752272a5e5 Implement PR3495: local spiller optimization. The local spiller can now keep availability information over BB boundaries. It visits BB's in depth first order. After visiting a BB if it find a successor which has a single predecessor it visits the successor next without clearing the availability information. This allows the successor to omit reloads or change them into copies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64298 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 08:24:21 +00:00
Dan Gohman
47ac0f0c7c When scheduling a block in parts, keep track of the overall
instruction index across each part. Instruction indices are used
to make live range queries, and live ranges can extend beyond
scheduling region boundaries.

Refactor the ScheduleDAGSDNodes class some more so that it
doesn't have to worry about this additional information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64288 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 04:27:20 +00:00
Devang Patel
bd75b8345f If llvm.dbg.region.end is disappearing then remove corresponding llvm.dbg.func.start also.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64278 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 01:29:06 +00:00
Dan Gohman
7dfa07f794 Don't print extra spaces in vector and array constants. This makes
them visually more consistent with vector and array types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64267 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 00:25:25 +00:00
Dan Gohman
5cffa6fe27 Use iterators to iterate through the Preds array instead of
an index. This code is on the hot-path because the current
way SDep edges are uniqued has quadratic complexity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64262 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11 00:12:28 +00:00
Dan Gohman
bed353d016 Consider any instruction that modifies the stack pointer to be
a scheduling region boundary.  This isn't necessary for
correctness; it helps with compile time, as it avoids the need
for data- and anti-dependencies from all spills and reloads on
the stack-pointer modification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64255 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-10 23:29:38 +00:00
Dan Gohman
9e64bbb322 Factor out more code for computing register live-range informationfor
scheduling, and generalize is so that preserves state across
scheduling regions. This fixes incorrect live-range information around
terminators and labels, which are effective region boundaries.

In place of looking for terminators to anchor inter-block dependencies,
introduce special entry and exit scheduling units for this purpose.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64254 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-10 23:27:53 +00:00
Devang Patel
0464a1431b Ignore dbg intrinsic while folding unconditional branch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64242 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-10 22:14:17 +00:00
Evan Cheng
1d76864df3 Handle llvm.x86.sse2.maskmov.dqu in 64-bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64240 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-10 22:06:28 +00:00
Evan Cheng
7403eeaa88 80 col violations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64237 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-10 21:39:44 +00:00
Devang Patel
7afe8fa066 Use early exits. Reduce indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64226 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-10 19:28:07 +00:00
Dan Gohman
d4e1845849 Use const, to support platforms where strrchr returns a const char *.
This fixes PR3535.


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2009-02-10 17:56:28 +00:00
Duncan Sands
35b5107951 Pacify gcc-4.3 (thinks IsConstant may be used
uninitialized).


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2009-02-10 16:24:55 +00:00
Evan Cheng
f0e366a929 Fix PR3457: Ignore control successors when looking for closest scheduled successor. A control successor doesn't read result(s) produced by the scheduling unit being evaluated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64210 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-10 08:30:11 +00:00
Devang Patel
f66d7b5a51 Do not clone llvm.dbg.func.start and corresponding llvm.dbg.region.end during inlining.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64209 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-10 07:48:18 +00:00
Devang Patel
4afc90dacf Enable scalar replacement of AllocaInst whose one of the user is dbg info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64207 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-10 07:00:59 +00:00
Devang Patel
2303df96b0 Validate file id.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64204 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-10 06:04:08 +00:00
Sanjiv Gupta
2cc753170b Function temporaries can not overlap with retval or args.See the comment in source code to know the reason. Anything having .auto. in its name is local to a function in nature irrespective of the linkage specified. print static local variables in module level IDATA section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64199 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-10 04:20:26 +00:00
Evan Cheng
a0eedac226 Implement FpSET_ST1_*.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64186 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-09 23:32:07 +00:00
Evan Cheng
4ded02f8bd If the target cannot issue a copy for the given source and dest registers, abort instead of silently continue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64184 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-09 22:47:36 +00:00
Dale Johannesen
1de17d574c Fix PR 3471, and some cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64177 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-09 22:14:15 +00:00
Evan Cheng
65b52dffe0 Simplify code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64164 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-09 21:01:06 +00:00
Evan Cheng
b1032a8a2f Make sure constant subscript is truncated to ptr size if it may not fit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64163 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-09 20:54:38 +00:00
Dan Gohman
333014e256 Use doxygen comment syntax.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64150 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-09 18:12:09 +00:00
Dan Gohman
b9070d3f63 Use slightly more correct grammar in error messages.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64148 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-09 17:41:21 +00:00
Gabor Greif
ccd27fb84b make sure that BranchInst::getSuccessor() does not assert in cast<>
even if the underlying operand is NULL. This may happen in debugging context
within opt with partial loop unrolling (see test/Transforms/LoopUnroll/partial.ll).
After this fix I can resubmit the (backed out) r63459:
* lib/VMCore/AsmWriter.cpp: use precise accessors.

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2009-02-09 15:45:06 +00:00
Evan Cheng
8f0d99e463 Re-enable machine sinking pass now that the coalescer bugs and the AnalyzeBrnach bug are fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64126 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-09 08:45:39 +00:00
Evan Cheng
190424edcd Fix another case ShortenDeadCopySrcLiveRange is shortening too much. No test case possible since I don't know what to grep for. :-(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64125 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-09 08:37:45 +00:00
Evan Cheng
dc54d317e7 Turns out AnalyzeBranch can modify the mbb being analyzed. This is a nasty
suprise to some callers, e.g. register coalescer. For now, add an parameter
that tells AnalyzeBranch whether it's safe to modify the mbb. A better
solution is out there, but I don't have time to deal with it right now.


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2009-02-09 07:14:22 +00:00
Mikhail Glushenkov
ba041f45fe Add a Sleep() function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64101 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-08 22:47:39 +00:00
Mikhail Glushenkov
0cdadd8b9d Add Emacs hints to Alarm.inc.
Also removes some trailing whitespace and fixes one 80-column violation.

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2009-02-08 21:10:57 +00:00
Chris Lattner
be685cc72a add a note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64093 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-08 20:44:19 +00:00
Chris Lattner
4a2f112a5c fix typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64091 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-08 20:00:15 +00:00
Chris Lattner
b4bd16fc5e reject void pointers with a nice error:
llvm-as: t.ll:2:15: pointers to void are invalid, use i8* instead
%X = type void*
              ^

instead of asserting and dying.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64089 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-08 19:56:22 +00:00
Evan Cheng
0a1fcce092 Fix PR3486. Fix a bug in code that manually patch physical register live interval after its sub-register is coalesced with a virtual register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64082 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-08 11:04:35 +00:00
Evan Cheng
86fb9fdb20 Strengthen the previous check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64076 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-08 08:24:28 +00:00
Evan Cheng
f18134a1ae r64073 commit message is lost. Here it is:
Right now if the coalesced copy def is dead and its src is a kill, and that
there are now other uses within the live range, the coalescer would mark the
def of the source register as dead. But it should also check if there are
other kills which means the value has other uses not in the live range.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64075 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-08 08:00:36 +00:00
Evan Cheng
77fde2cbb1 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64073 91177308-0d34-0410-b5e6-96231b3b80d8 2009-02-08 07:48:37 +00:00
Bill Wendling
b805030e02 Mistakenly turned this on.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64065 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-08 01:32:00 +00:00
Bill Wendling
7f51fd3ea9 Revert r63999. It was breaking self-hosting builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64062 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-08 00:58:05 +00:00
Chris Lattner
556b4a6385 Add missing break statements, fixing PR3503.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64040 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07 22:37:06 +00:00
Mon P Wang
6753f959d2 Instrcombine should not change load(cast p) to cast(load p) if the cast
changes the address space of the pointer.


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2009-02-07 22:19:29 +00:00
Dale Johannesen
6f38cb61a9 Use getDebugLoc forwarder instead of getNode()->getDebugLoc.
No functional change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64026 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07 19:59:05 +00:00
Dan Gohman
1fdbc1dd4e Constify TargetInstrInfo::EmitInstrWithCustomInserter, allowing
ScheduleDAG's TLI member to use const.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64018 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07 16:15:20 +00:00
Nick Lewycky
f996831427 Add an API for strings with possible NULLs in the middle. Refactor the other
two AddString methods to use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64005 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07 04:57:08 +00:00
Mike Stump
f344d83d39 Insert space to avoid warning and make code more readable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64003 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07 03:36:02 +00:00
Dale Johannesen
92570c4a1a Make SDNode constructors take a DebugLoc always.
Adjust derived classes to pass UnknownLoc where
a DebugLoc does not make sense.  Pick one of
DebugLoc and non-DebugLoc variants to survive
for all such classes.



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2009-02-07 02:15:05 +00:00
Evan Cheng
c963b638c7 Enable machine sinking pass in non-fast mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63999 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07 01:57:46 +00:00
Dale Johannesen
edb62c484e Remove now-unused constructors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63995 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07 01:27:09 +00:00
Evan Cheng
b6f5417edb Don't sink the instruction if TargetRegisterInfo::isSafeToMoveRegClassDefs doesn't think it's safe. This works around PR1911.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63994 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07 01:21:47 +00:00
Dale Johannesen
0469280776 Needs this file too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63993 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07 00:56:46 +00:00
Dale Johannesen
b300d2aa3e Get rid of the last non-DebugLoc versions of getNode!
Many targets build placeholder nodes for special operands, e.g.
GlobalBaseReg on X86 and PPC for the PIC base.  There's no
sensible way to associate debug info with these.  I've left
them built with getNode calls with explicit DebugLoc::getUnknownLoc operands. 
I'm not too happy about this but don't see a good improvement;
I considered adding a getPseudoOperand or something, but it
seems to me that'll just make it harder to read.



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2009-02-07 00:55:49 +00:00
Dan Gohman
2d0a1cc416 Refactor some repeated logic into a separate function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63989 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07 00:43:41 +00:00
Dan Gohman
288b824cef Make a comment a doxygen comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63988 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07 00:42:54 +00:00
Dale Johannesen
e8d7230f48 Remove more non-DebugLoc getNode variants. Use
getCALLSEQ_{END,START} to permit passing no DebugLoc
there.  UNDEF doesn't logically have DebugLoc; add
getUNDEF to encapsulate this.



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2009-02-06 23:05:02 +00:00
Dale Johannesen
e72c5964d5 And one more file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63971 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06 21:55:48 +00:00
Dale Johannesen
de06470330 Remove more non-DebugLoc versions of getNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63969 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06 21:50:26 +00:00
Bill Wendling
ac06d004a0 Record debug location information in the Dwarf writer.
A simple test program shows that debugging works. :-)


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2009-02-06 21:45:08 +00:00
Bill Wendling
8fcf170a66 Clear out the CurDebugLoc info when doing a 'clear' on the SDL object.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63967 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06 21:36:23 +00:00
Dan Gohman
21afcda544 Split the locking out of JIT::runJITOnFunction so that callers
that already hold the lock can call an entry point that doesn't
re-acquire the lock.


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2009-02-06 21:25:08 +00:00
Dan Gohman
9036d80d7b Use .size and .type on ELF systems; this helps tools that map
addresses to symbols.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63962 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06 21:15:52 +00:00
Dale Johannesen
f5f5dce897 Eliminate remaining non-DebugLoc version of getTargetNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63951 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06 19:16:40 +00:00
Dan Gohman
0a3776dc6f Rename SelectionDAGISel::Schedule to
SelectionDAGISel::CreateScheduler, and make it just create the
scheduler. Leave running the scheduler to the higher-level code.
This makes the higher-level code a little more explicit and
easier to follow, and will help enable some future refactoring.


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2009-02-06 18:26:51 +00:00
Sanjiv Gupta
a2d8b06272 Print globl directive for variables with external linkage (global variables).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63943 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06 18:24:59 +00:00
Dan Gohman
56774d2b0d Delete an unused member function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63941 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06 18:19:52 +00:00
Evan Cheng
770bcc7b15 Move getPointerRegClass from TargetInstrInfo to TargetRegisterInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63938 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06 17:43:24 +00:00
Dan Gohman
84fbac5809 Move ScheduleDAGSDNodes.h to be a private header. Front-ends
that previously included this header should include
SchedulerRegistry.h instead.


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2009-02-06 17:22:58 +00:00
Evan Cheng
4350eb86a7 Add TargetInstrInfo::isSafeToMoveRegisterClassDefs. It returns true if it's safe to move an instruction which defines a value in the register class. Replace pre-splitting specific IgnoreRegisterClassBarriers with this new hook.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63936 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06 17:17:30 +00:00
Dan Gohman
6dc75fe527 Move ScheduleDAGInstrs.h to be a private header. Front-ends
that used this header to select a scheduling policy should
use SchedulerRegistry.h instead (llvm-gcc and clang were
updated a while ago).


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2009-02-06 17:12:10 +00:00
Devang Patel
d96c60df3f Ignore DbgInfoIntrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63923 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06 06:19:06 +00:00
Chris Lattner
e991ced7cb fix PR3489, use bits instead of bytes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63916 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06 04:34:07 +00:00
Dale Johannesen
f90b2a7742 get rid of some non-DebugLoc getTargetNode variants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63909 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06 02:08:06 +00:00
Dale Johannesen
ed2eee63a6 Get rid of one more non-DebugLoc getNode and
its corresponding getTargetNode.  Lots of
caller changes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63904 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06 01:31:28 +00:00
Owen Anderson
d9289a54cd Fix a crasher: we need to check that the function is non-null before using it!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63902 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06 00:13:43 +00:00
Owen Anderson
e79422096e Refactor my previous change to maintain the distinction between AliasAnalysis and BasicAliasAnalysis. This involves some wider changes because it
folds away some never-used methods.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63900 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 23:36:27 +00:00
Devang Patel
32d9701d68 Ignore dbg intrinsics while propagating conditional expression info. Take 2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63898 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 23:32:52 +00:00
Evan Cheng
54801f78b1 isAsCheapAsMove instructions can have register src operands. Check if they are really re-materializable.
This fixes sse.expandfft and sse.stepfft.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63890 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 22:24:17 +00:00
Dale Johannesen
3484c09e0d Remove a non-DebugLoc version of getNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63889 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 22:07:54 +00:00
Devang Patel
998cbb0444 Revert rev. 63876. It is causing llvm-gcc bootstrap failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63888 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 21:46:41 +00:00
Dale Johannesen
9b36c631eb Remove 3 non-DebugLoc variants of getNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63886 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 21:20:44 +00:00
Devang Patel
39c873e38f Remove dead blocks in the end.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63880 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 19:59:42 +00:00
Devang Patel
1851db6b0f Ignore dbg intrinsics while propagating conditional expression info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63876 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 19:15:39 +00:00
Evan Cheng
740854bb19 Machine LICM increases register pressure and it almost always increase code size. For now, disable it for optimizing for size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63856 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 08:51:13 +00:00
Evan Cheng
c5d1a4ffd9 Turn on machine LICM in non-fast mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63855 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 08:46:33 +00:00
Evan Cheng
af6949d0b1 Teach machine licm to CSE hoisted instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63854 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 08:45:46 +00:00
Evan Cheng
961154f2db ReMaterializeTrivialDef need to trim the live interval to the last kill if the copy kills the source register. This fixes uint64tof64.ll after ARM::MOVi is marked as isAsCheapAsAMove.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63853 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 08:45:04 +00:00
Evan Cheng
b3379fbc60 A few more isAsCheapAsAMove.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63852 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 08:42:55 +00:00
Chris Lattner
4798bbeaf5 if we have a large GEP offset on a 32-bit or other target, make
sure to print the value properly sext'd to the right pointer size.
This fixes PR3481.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63843 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 06:55:21 +00:00
Owen Anderson
5734c94ec2 Pre-alloc splitting needs to be more careful to avoid inserting spills/restores
between call frame setup/restore points.  Unfortunately, this regresses 
code size a bit, but at least it's correct now!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63837 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 05:58:41 +00:00
Mon P Wang
b0e341bca1 Fix a bug where we were not emitting a cvt rnd sat node for converting
between a unsigned integer and signed integer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63831 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 04:47:42 +00:00
Dale Johannesen
49de98214b Reapply 63765. Patches for clang and llvm-gcc to follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63812 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 01:49:45 +00:00
Dale Johannesen
2fabcb2776 Get rid of 3 non-DebugLoc getNode variants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63808 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 01:01:16 +00:00
Devang Patel
2cc86a1de1 Ignore dbg intrinsics while folding switch instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63802 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 00:30:42 +00:00
Dale Johannesen
4be0bdf7c1 Remove non-DebugLoc versions of getMergeValues, ZeroExtendInReg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63800 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05 00:20:09 +00:00
Dale Johannesen
a05dca4f9e Remove non-DebugLoc forms of CopyToReg and CopyFromReg.
Adjust callers.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63789 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 23:02:30 +00:00
Dale Johannesen
4d452de150 Reverting 63765. This broke the build of both clang
and llvm-gcc.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63786 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 22:47:25 +00:00
Devang Patel
d0a203d76f Ignore dbg intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63781 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 21:39:48 +00:00
Stuart Hastings
4caa0427bf 80 column rule.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63768 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 20:30:10 +00:00
Dale Johannesen
33c960f523 Remove non-DebugLoc versions of getLoad and getStore.
Adjust the many callers of those versions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63767 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 20:06:27 +00:00
Nate Begeman
d24479730a New feature: add support for target intrinsics being defined in the
target directories themselves.  This also means that VMCore no longer
needs to know about every target's list of intrinsics.  Future work
will include converting the PowerPC target to this interface as an
example implementation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63765 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 19:47:21 +00:00
Mon P Wang
e5ab34e05d Avoids generating a legalization assert for the case where a vector type is legal
but when legalizing the operation, we split the vector type and generate a library
call whose type needs to be promoted. For example, X86 with SSE on but MMX off, 
a divide v2i64 will be scalarized to 2 calls to a library using i64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63760 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 19:38:14 +00:00
Chris Lattner
e6c1473e56 Bill implemented this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63752 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 19:09:07 +00:00
Chris Lattner
8dfdf5d62d add a note, this is why we're faster at SciMark-MonteCarlo with
SSE disabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63751 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 19:08:01 +00:00
Evan Cheng
6792e90fec Skip over zero registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63748 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 18:18:58 +00:00
Chris Lattner
45f3683547 allow main to have any integer type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63743 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 17:48:18 +00:00
Dan Gohman
37eed798a9 Minor code cleanups; no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63740 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 17:28:58 +00:00
Stuart Hastings
80d6977e90 Since I'm obliged to work with a development OS that currently doesn't
support GraphViz, I've been using the foo->dump() facility.  This
patch is a minor rewrite to the SelectionDAG dump() stuff to make it a
little more helpful.  The existing foo->dump() functionality does not
change; this patch adds foo->dumpr().  All of this is only useful when
running LLVM under a debugger.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63736 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 16:46:19 +00:00
Duncan Sands
09750273a4 Allow the inverse transform x86_fp80 -> i80 (also
fires during the Ada build).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63731 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 11:17:06 +00:00
Duncan Sands
a06aef6ec5 Fix PR3468: a crash when constant folding a bitcast of
i80 to x86 long double (this was presumably generated
by sroa).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63730 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 10:17:14 +00:00
Evan Cheng
5caa883afc Don't call isInvariantLoad twice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63729 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 09:21:58 +00:00
Evan Cheng
45e94d68d7 Don't bother hoisting out a "cheap" instruction if all of its uses are PHIs. LICM "cheap" instructions are not particularly beneficial to start with. This will just end up making the copies harder to coalesce.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63728 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 09:19:56 +00:00
Evan Cheng
9b61f33351 For now, only hoist re-materilizable instructions. LICM will increase register pressure. We want to avoid spilling more instructions if it's possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63725 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 07:17:49 +00:00
Nick Lewycky
f9c5c5c7a2 Reapply patch from r62553, with a fix to avoid looking for an ffi.h that isn't
there.

This changes the interpreter to use libffi. After this patch, the interpreter
will barely be able to call any external functions if built on a system without
libffi installed (just enough to pass 'make check' really). But with libffi,
we can now call any function that isn't variadic or taking a struct or vector
parameter (but pointer to struct is fine). Patch by Alexei Svitkine!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63723 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 06:26:47 +00:00
Owen Anderson
fe9388ccb4 Finish making AliasAnalysis aware of the fact that most atomic intrinsics only dereference their arguments, and enhance
BasicAA to make use of this fact when computing ModRef info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63718 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 05:16:46 +00:00
Dale Johannesen
39355f9fea Remove non-DebugLoc forms of the exotic forms
of Lod and Sto; patch uses.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63716 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 02:34:38 +00:00
Dale Johannesen
f5d9789a7f Remove some more non-DebugLoc versions of construction
functions, with callers adjusted to fit.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 01:48:28 +00:00
Dale Johannesen
f8d3ec2c57 Check in file I forgot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63704 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 01:33:20 +00:00
Dale Johannesen
8ad9b43e69 Remove a few non-DebugLoc versions of node creation
functions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63703 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 01:17:06 +00:00
Mon P Wang
7bcaefaf59 Fixes a case where we generate an incorrect mask for pshfhw in the presence
of undefs and incorrectly determining if we have punpckldq.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 01:16:59 +00:00
Devang Patel
556b20ab46 While folding vallue comparison terminators ignore dbg intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63700 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 01:06:11 +00:00
Dale Johannesen
dd64c417c0 Patch up omissions in DebugLoc propagation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63693 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 00:33:20 +00:00
Dale Johannesen
c460ae9001 Fill in more omissions in DebugLog propagation.
I think that's it for this directory.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63690 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 00:13:36 +00:00
Bill Wendling
a929c68bfc Constify and don't return a reference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63689 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 00:05:34 +00:00
Devang Patel
65085cf7b3 Ignore dbg intrinsics while hoisting common code in the two blocks up into the branch block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63687 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04 00:03:08 +00:00
Dale Johannesen
a04b757109 DebugLoc propagation; adjustment to things omitted
from SelectionDagBuild.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63680 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 23:04:43 +00:00
Bill Wendling
44f6ac640a Erm. Would be nice to initialize this variable. . .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63677 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 22:55:54 +00:00
Bill Wendling
85e3af9b70 Add getDebugLocTuple to retrieve the DebugLocTuple for a given DebugLoc object.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63676 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 22:49:58 +00:00
Dale Johannesen
eacf2dc4bb Need this file too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63674 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 22:26:34 +00:00
Dale Johannesen
0f502f6f44 Add some DL propagation to places that didn't
have it yet.  More coming.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63673 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 22:26:09 +00:00
Devang Patel
383d7ed915 Do not let dbg intrinsic block folding of two entry phi node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63671 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 22:12:02 +00:00
Devang Patel
28aa5de050 If "optimize for size" attribute is set then block non-trivial loop unswitches but allow trivial loop unswitches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63670 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 22:04:27 +00:00
Dale Johannesen
d839254888 DebugLoc propgation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63664 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 21:48:12 +00:00
Bill Wendling
ef7e18e60c More whitespace fixin'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63663 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 21:38:21 +00:00
Bill Wendling
b9dcef2a00 Whitespace and comment changes. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63660 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 21:17:20 +00:00
Chris Lattner
1aa7056b13 teach "convert from scalar" to handle loads of fca's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63659 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 21:08:45 +00:00
Chris Lattner
6e01115bb1 refactor the interface to ConvertUsesOfLoadToScalar,
renaming it to ConvertScalar_ExtractValue


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63658 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 21:01:03 +00:00
Dale Johannesen
e4d209dcb8 DebugLoc propagation. done with file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63656 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 20:21:25 +00:00
Devang Patel
6268d69d73 Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63653 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 19:46:28 +00:00
Chris Lattner
9bc67da0a9 convert ConvertUsesOfLoadToScalar to use IRBuilder,
no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63652 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 19:45:44 +00:00
Chris Lattner
65a650291d switch ConvertScalar_InsertValue to use an IRBuilder, no
functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63651 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 19:41:50 +00:00
Dale Johannesen
ace1610df5 DebugLoc propagation. 2/3 through file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63650 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 19:33:06 +00:00
Chris Lattner
9b872db775 make scalar conversion handle stores of first class
aggregate values.  loads are not yet handled (coming
soon to an sroa near you).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63649 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 19:30:11 +00:00
Dan Gohman
43f07fb6c3 Change the post-RA scheduler to iterate through the
basic-block segments bottom-up instead of top down. This
is the first step in a general restructuring of the way
register liveness is tracked in the post-RA scheduler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63643 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 18:57:45 +00:00
Dan Gohman
605679f0cd Tevert part of the x86 subtarget logic changes: when -march=x86-64
is given, override the subtarget settings and enable 64-bit support.
This restores the earlier behavior, and fixes regressions on
Non-64-bit-capable x86-32 hosts.

This isn't necessarily the best approach, but the most obvious
alternative is to require -mcpu=x86-64 or -mattr=+64bit to be used
with -march=x86-64 when the host doesn't have 64-bit support. This
makes things little more consistent, but it's less convenient, and
it has the practical drawback of requiring lots of test changes, so
I opted for the above approach for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63642 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 18:53:21 +00:00
Devang Patel
b51d40cf40 First initialize DAG otherwise dwarf writer is used uninitialized.
Duncan spotted this. Thanks!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63641 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 18:46:32 +00:00
Chris Lattner
1a3257bbf5 Make SROA produce a vector only when the alloca is actually
accessed at least once as a vector.  This prevents it from
compiling the example in not-a-vector into:

define double @test(double %A, double %B) {
	%tmp4 = insertelement <7 x double> undef, double %A, i32 0
	%tmp = insertelement <7 x double> %tmp4, double %B, i32 4
	%tmp2 = extractelement <7 x double> %tmp, i32 4
	ret double %tmp2
}

instead, producing the integer code.  Producing vectors when they
aren't otherwise in the program is dangerous because a lot of other
code treats them carefully and doesn't want to break them down.
OTOH, many things want to break down tasty i448's.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63638 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 18:15:05 +00:00
Duncan Sands
95c5f05641 Fix PR3411. When replacing values, nodes are analyzed
in any old order.  Since analyzing a node analyzes its
operands also, this can mean that when we pop a node
off the list of nodes to be analyzed, it may already
have been analyzed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63632 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 10:23:33 +00:00
Evan Cheng
388df627cc APInt'fy SimplifyDemandedVectorElts so it can analyze vectors with more than 64 elements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63631 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 10:05:09 +00:00
Chris Lattner
55a683d7f0 add another case of undefined behavior without crashing, PR3466.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63620 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 07:08:57 +00:00
Nick Lewycky
2eafb8b404 Revert r63600. It didn't fix the bug, it just moved it a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63618 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 06:30:37 +00:00
Owen Anderson
cd89525434 Teach AliasAnalysis that a bunch of the atomic intrinsics only dereference their arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63616 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 06:27:22 +00:00
Nick Lewycky
dac5c4b10b Update the callgraph when replacing InvokeInst with CallInst when inlining.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63600 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 04:34:40 +00:00
Bill Wendling
d62e06c53b Explicitly pass in debug location information to BuildMI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63599 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 02:29:34 +00:00
Bill Wendling
6a8a0d74cb Pass in something sensible for the debug location information when creating the
initial PHI nodes of the machine function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63598 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 02:20:52 +00:00
Chris Lattner
ba120aa5fa fix a bitcode reader bug where it can't handle extractelement correctly:
the index of the value being extracted is always an i32.  This fixes PR3465


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63597 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 02:11:28 +00:00
Chris Lattner
3d730f7453 Teach ConvertUsesToScalar to handle memset, allowing it to handle
crazy cases like:

struct f {  int A, B, C, D, E, F; };
short test4() {
  struct f A;
  A.A = 1;
  memset(&A.B, 2, 12);
  return A.C;
}



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63596 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 02:01:43 +00:00
Dale Johannesen
dbfd8dbdee Fill in some missing DL propagation in getNode()s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63595 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 01:55:44 +00:00
Bill Wendling
b288487a8e Use SDL->getCurDebugLoc() instead of unknown loc for landing pads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63594 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 01:55:42 +00:00
Bill Wendling
ec37e98b3d Explicitly pass in the "unknown" debug location. This is probably not
correct. We need more infrastructure before we can get the DebugLoc info for
these instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63593 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 01:33:28 +00:00
Bill Wendling
0eb96fd94b Alphabetize includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63591 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 01:32:22 +00:00
Chris Lattner
7809ecd5b0 rearrange how SRoA handles promotion of allocas to vectors.
With the new world order, it can handle cases where the first
store into the alloca is an element of the vector, instead of
requiring the first analyzed store to have the vector type 
itself.  This allows us to un-xfail 
test/CodeGen/X86/vec_ins_extract.ll.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63590 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 01:30:09 +00:00
Dan Gohman
a5f81bba4a Move isIdentifiedObject and isNoAliasCall into AliasAnalysis.cpp since
they are useful to analyses other than BasicAliasAnalysis.cpp. Include
the full comment for isIdentifiedObject in the header file. Thanks to
Chris for suggeseting this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63589 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 01:28:32 +00:00
Bill Wendling
f2ad58d930 Propagate debug loc info during SDNode -> machine instr creation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63585 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 01:02:39 +00:00
Bill Wendling
9bc96a5720 Create DebugLoc information in FastISel. Several temporary methods were
created. Specifically, those BuildMIs which use
"DebugLoc::getUnknownLoc()". I'll remove them soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63584 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 00:55:04 +00:00
Dale Johannesen
ff97d4fe81 Propagation in TargetLowering. Includes passing a DL
into SimplifySetCC which gets called elsewhere.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63583 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 00:47:48 +00:00
Dan Gohman
a7ce741ff0 Use the SubclassData field to hold ExtType, isTrunc, and MemIndexedMode
information. This eliminates the need for the Flags field in MemSDNode,
so this makes LoadSDNode and StoreSDNode smaller. Also, it makes
FoldingSetNodeIDs for loads and stores two AddIntegers smaller.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63577 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 00:08:45 +00:00
Dan Gohman
f75e5b4d8c Change Feature64Bit to not imply FeatureSSE2. All x86-64 hardware has
SSE2, however it's possible to disable SSE2, and the subtarget support
code thinks that if 64-bit implies SSE2 and SSE2 is disabled then
64-bit should also be disabled. Instead, just mark all the 64-bit
subtargets as explicitly supporting SSE2.

Also, move the code that makes -march=x86-64 enable 64-bit support by
default to only apply when there is no explicit subtarget. If you
need to specify a subtarget and you want 64-bit code, you'll need to
select a subtarget that supports 64-bit code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63575 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03 00:04:43 +00:00
Dale Johannesen
ca57b84729 Last DebugLoc propagation for this file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63574 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 23:46:53 +00:00
Dale Johannesen
c6be110f91 More DebugLoc propagation. This should be everything
except LegalizeOp itself.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63560 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 22:49:46 +00:00
Mike Stump
d64e0eb094 Improve -fno-opt style option processing to not require an extra
option to make the -fno- form on the option.  We also document the new
form in the CommandLine documentation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63559 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 22:48:49 +00:00
Owen Anderson
5b93f6fa82 MergeValueInto is too smart: it might choose to do the merge the opposite direction.
Live interval reconstruction needs to account for this, and scour its maps to
prevent dangling references.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63558 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 22:42:01 +00:00
Dale Johannesen
8a782a2a8c DebugLoc propagation. ExpandOp and PromoteOp,
among others.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63555 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 22:12:50 +00:00
Torok Edwin
b68a88bd48 Only force SSE level if it is not correct.
Add an assert to check HasX86_64 status.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63552 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 21:57:34 +00:00
Dale Johannesen
54c94525f4 Commit missing files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63545 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 20:47:48 +00:00
Chris Lattner
15c8277903 inline SROA::ConvertToScalar, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63544 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 20:44:45 +00:00
Dale Johannesen
bb5da91854 More DebugLoc propagation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63543 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 20:41:04 +00:00
Torok Edwin
38870ed13c remove #if 0 code on Bill's request.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63542 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 20:23:02 +00:00
Duncan Sands
7fb0858718 Remove trailing spaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63540 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 19:46:41 +00:00
Dale Johannesen
af435274e5 DebugLoc propagation for int<->fp conversions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 19:03:57 +00:00
Evan Cheng
19a725851d Refactor PerformPHIConstruction, no functionality changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63536 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 18:33:18 +00:00
Chris Lattner
996d7a97f9 Fix a bug which caused us to miscompile a couple of Ada
tests.  Thanks for the beautiful reduced testcase Duncan!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63529 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 18:02:59 +00:00
Devang Patel
d5863dd9a8 Do not add redundant arguments in a method definition DIE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63527 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 17:51:41 +00:00
Sanjiv Gupta
55467af316 Duncan's patch. Further to 64382. Takes care of illegal types for shift amount.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63523 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 17:19:39 +00:00
Sanjiv Gupta
3b020feb57 Made the common case of default address space directive as non-virtual for performance reasons. Provide a single virtual interface for directives of all sizes in non-default address spaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63521 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 16:53:06 +00:00
Duncan Sands
4b3dfbd220 Fix a comment (bytes -> bits), reformat a comment
and remove trailing whitespace.  No functionality
change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63511 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 10:06:20 +00:00
Duncan Sands
0e7c46bc7e Fix an obvious thinko.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63510 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 09:53:14 +00:00
Evan Cheng
97d0e0e314 ADD / SUB / SMUL / UMUL with overflow second result top bits must be zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63509 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 09:15:04 +00:00
Evan Cheng
961d6d4ac0 Add comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63506 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 08:19:07 +00:00
Evan Cheng
67ad9db15b Teach LowerBRCOND to recognize (xor (setcc x), 1). The xor inverts the condition. It's normally transformed by the dag combiner, unless the condition is set by a arithmetic op with overflow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63505 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 08:07:36 +00:00
Chris Lattner
585c51efbc reject things like: zext <4 x i32> %tmp to i256
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63504 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 07:40:17 +00:00
Chris Lattner
91dad87ddc Fix PR3372
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63501 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 07:24:28 +00:00
Chris Lattner
f5db1fbf7a reduce indentation, (~XorCST->getValue()).isSignBit() -> isMaxSignedValue()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63500 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 07:15:30 +00:00
Mon P Wang
c82bf9b268 Preserve more SourceValue information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63498 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02 06:37:55 +00:00
Torok Edwin
3f142c36ad Implement -mno-sse: if SSE is disabled on x86-64, don't store XMM on stack for
var-args, and don't allow FP return values


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63495 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01 18:15:56 +00:00
Duncan Sands
b0d5cdd52e Fix PR3453 and probably a bunch of other potential
crashes or wrong code with codegen of large integers:
eliminate the legacy getIntegerVTBitMask and
getIntegerVTSignBit methods, which returned their
value as a uint64_t, so couldn't handle huge types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63494 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01 18:06:53 +00:00
Bill Wendling
fc4b677cd5 Forgot some more DebugLoc propagations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63493 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01 11:19:36 +00:00
Owen Anderson
4a6d13e8fb Fix test failures causes by my previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63492 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01 08:41:54 +00:00
Owen Anderson
5caedc0f09 Fix an issue in PHI construction that was exposed by GCC 4.2 producing a different set iteration order for the reg_iterator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63490 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01 07:06:00 +00:00
Evan Cheng
2d5424d76a Fix PR3423: Link llvm on ARM EABI machines. Patch by Robert Schuster.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63489 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01 06:42:27 +00:00
Dale Johannesen
644f6f875e DebugLoc propagation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63488 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 22:04:51 +00:00
Nick Lewycky
4333f49afe Reinstate this optimization to fold icmp of xor when possible. Don't try to
turn icmp eq a+x, b+x into icmp eq a, b if a+x or b+x has other uses. This
may have been increasing register pressure leading to the bzip2 slowdown.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63487 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 21:30:05 +00:00
Dale Johannesen
35ba3d4638 DebugLoc propagation. Done with file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63486 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 21:04:24 +00:00
Dale Johannesen
9c8ac447c4 DebugLoc propagation. Done with file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63485 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 20:01:02 +00:00
Chris Lattner
39c27eddc5 Fix PR3452 (an infinite loop bootstrapping) by disabling the recent
improvements to the EvaluateInDifferentType code.  This code works 
by just inserted a bunch of new code and then seeing if it is 
useful.  Instcombine is not allowed to do this: it can only insert
new code if it is useful, and only when it is converging to a more
canonical fixed point.  Now that we iterate when DCE makes progress,
this causes an infinite loop when the code ends up not being used.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63483 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 19:05:27 +00:00
Duncan Sands
92abc62399 Fix PR3401: when using large integers, the type
returned by getShiftAmountTy may be too small
to hold shift values (it is an i8 on x86-32).
Before and during type legalization, use a large
but legal type for shift amounts: getPointerTy;
afterwards use getShiftAmountTy, fixing up any
shift amounts with a big type during operation
legalization.  Thanks to Dan for writing the
original patch (which I shamelessly pillaged).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63482 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 15:50:11 +00:00
Chris Lattner
d1b5e3fad9 now that all the pieces are in place, teach instcombine's
simplifydemandedbits to simplify instructions with *multiple
uses* in contexts where it can get away with it.  This allows
it to simplify the code in multi-use-or.ll into a single 'add 
double'.

This change is particularly interesting because it will cover
up for some common codegen bugs with large integers created due
to the recent SROA patch.  When working on fixing those bugs,
this should be disabled.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63481 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 08:40:03 +00:00
Chris Lattner
4598c943c0 simplify/clarify control flow and improve comments, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63480 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 08:24:16 +00:00
Chris Lattner
886ab6c49c make some fairly meaty internal changes to how SimplifyDemandedBits works.
Now, if it detects that "V" is the same as some other value, 
SimplifyDemandedBits returns the new value instead of RAUW'ing it immediately.
This has two benefits:
1) simpler code in the recursive SimplifyDemandedBits routine.
2) it allows future fun stuff in instcombine where an operation has multiple
   uses and can be simplified in one context, but not all.

#2 isn't implemented yet, this patch should have no functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63479 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 08:15:18 +00:00
Chris Lattner
08d2cc70fe minor cleanups
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63477 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 07:26:06 +00:00
Chris Lattner
1e19d603e0 make sure to set Changed=true when instcombine hacks on the code,
not doing so prevents it from properly iterating and prevents it
from deleting the entire body of dce-iterate.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63476 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 07:04:22 +00:00
Mon P Wang
a7b6cff99f If unsafe FP optimization is not set, don't allow -(A-B) => B-A because
when A==B, -0.0 != +0.0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63474 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 06:07:45 +00:00
Bill Wendling
9729c5ad34 Don't use DebugLoc::getUnknownLoc(). Default to something hopefully sensible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63473 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 03:12:48 +00:00
Chris Lattner
2e0d5f8432 Simplify and generalize the SROA "convert to scalar" transformation to
be able to handle *ANY* alloca that is poked by loads and stores of 
bitcasts and GEPs with constant offsets.  Before the code had a number
of annoying limitations and caused it to miss cases such as storing into
holes in structs and complex casts (as in bitfield-sroa) where we had
unions of bitfields etc.  This also handles a number of important cases
that are exposed due to the ABI lowering stuff we do to pass stuff by
value.

One case that is pretty great is that we compile 
2006-11-07-InvalidArrayPromote.ll into:

define i32 @func(<4 x float> %v0, <4 x float> %v1) nounwind {
	%tmp10 = call <4 x i32> @llvm.x86.sse2.cvttps2dq(<4 x float> %v1)
	%tmp105 = bitcast <4 x i32> %tmp10 to i128
	%tmp1056 = zext i128 %tmp105 to i256	
	%tmp.upgrd.43 = lshr i256 %tmp1056, 96
	%tmp.upgrd.44 = trunc i256 %tmp.upgrd.43 to i32	
	ret i32 %tmp.upgrd.44
}

which turns into:

_func:
	subl	$28, %esp
	cvttps2dq	%xmm1, %xmm0
	movaps	%xmm0, (%esp)
	movl	12(%esp), %eax
	addl	$28, %esp
	ret

Which is pretty good code all things considering :).

One effect of this is that SROA will start generating arbitrary bitwidth 
integers that are a multiple of 8 bits.  In the case above, we got a 
256 bit integer, but the codegen guys assure me that it can handle the 
simple and/or/shift/zext stuff that we're doing on these operations.

This addresses rdar://6532315



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63469 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 02:28:54 +00:00
Dale Johannesen
66978ee977 Move CurDebugLoc into SelectionDAGLowering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63468 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 02:22:37 +00:00
Gabor Greif
9411cd2570 back out my previous change, it exposes a latent bug. investigating
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63463 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 01:31:59 +00:00
Gabor Greif
3edbcada57 use precise accessors
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63459 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 00:58:14 +00:00
Dale Johannesen
91b49b910c Propagate debug info in LegalizeFloatTypes.
Complete (modulo bugs).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63458 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 00:43:08 +00:00
Dale Johannesen
786fd4dded Propagate debug info. This file complete
(modulo bugs)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63457 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 00:20:43 +00:00
Dale Johannesen
c8fc99d66a Propagate debug info through MakeLibCall and a
couple of things that use it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63456 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 00:11:23 +00:00
Bill Wendling
836ca7dc6e More DebugLoc propagation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63454 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 23:59:18 +00:00
Bill Wendling
c144a57e14 More DebugLoc propagation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63452 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 23:36:47 +00:00
Bill Wendling
c0debad716 More DebugLoc propagation in LOAD etc. methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63451 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 23:27:35 +00:00
Bill Wendling
0225a1dcb1 More DebugLoc propagation in floating-point methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63446 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 23:15:49 +00:00
Dale Johannesen
7d2ad624fa Make LowerCallTo and LowerArguments take a DebugLoc
argument.  Adjust all callers and overloaded versions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63444 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 23:10:59 +00:00
Bill Wendling
d34470c4f7 Standardize comments about folding xforms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63443 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 23:10:18 +00:00
Bill Wendling
7581bfa275 Get rid of the non-DebugLoc-ified getNOT() method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63442 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 23:03:19 +00:00
Bill Wendling
a03e74bf67 Propagate debug loc info for some FP arithmetic methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63441 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 22:57:07 +00:00
Bill Wendling
b0162f58c4 Propagate debug loc info for some FP arithmetic methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63440 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 22:53:48 +00:00
Bill Wendling
67a6768375 Propagate debug loc info for BIT_CONVERT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63439 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 22:44:24 +00:00
Bill Wendling
8509c90a20 Propagate debug loc info for more *_EXTEND methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63437 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 22:33:24 +00:00
Bill Wendling
683c95764a Propagate debug loc info for ANY_EXTEND.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63436 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 22:27:33 +00:00
Bill Wendling
6ce610f04b Propagate debug loc info for some of the *_EXTEND functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63434 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 22:23:15 +00:00
Bill Wendling
41b9d278ad DebugLoc form of getNOT().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63433 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 22:11:22 +00:00
Bill Wendling
34584e6aed - Propagate debug loc info for SELECT.
- Added xform for (select X, 1, Y) and (select X, Y, 0), which was commented on,
  but missing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63428 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 22:02:18 +00:00
Bill Wendling
8810337e36 Propagate debug loc info for Shifts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63424 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 21:37:17 +00:00
Bill Wendling
317bd709bd Propagate debug loc info for XOR and MatchRotate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63420 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 21:14:50 +00:00
Bill Wendling
0902564479 Propagate debug loc info for OR. Also clean up some comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63419 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 20:59:34 +00:00
Bill Wendling
6af7618b23 Perform obvious constant arithmetic folding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63417 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 20:50:00 +00:00
Bill Wendling
2627a881e1 Propagate debug loc info for AND. Also clean up some comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63416 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 20:43:18 +00:00
Bill Wendling
b74c8675b1 Propagate debug loc info in SimplifyBinOpWithSameOpcodeHands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63411 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 19:25:47 +00:00
Gabor Greif
ae6ab1e950 use precise getters
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63403 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 18:27:21 +00:00
Gabor Greif
c1bb13f1b8 use precise getters
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63402 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 18:21:13 +00:00
Devang Patel
dd9db66882 Each input file is encoded as a separate compile unit in LLVM debugging
information output. However, many target specific tool chains prefer to encode
only one compile unit in an object file. In this situation, the LLVM code
generator will include  debugging information entities in the compile unit 
that is marked as main compile unit. The code generator accepts maximum one main
compile unit per module. If a module does not contain any main compile unit 
then the code generator will emit multiple compile units in the output object 
file.

[Part 1]

Update DebugInfo APIs to accept optional boolean value while creating DICompileUnit  to mark the unit as "main" unit. By defaults all units are considered  non-main.  Update SourceLevelDebugging.html to document "main" compile unit.

Update DebugInfo APIs to not accept and encode separate source file/directory entries while creating various llvm.dbg.* entities. There was a recent, yet to be documented, change to include this additional information so no documentation changes are required here.

Update DwarfDebug to handle "main" compile unit. If "main" compile unit is seen then all DIEs are inserted into "main" compile unit. All other compile units are used to find source location for llvm.dbg.* values. If there is not any "main" compile unit then create unique compile unit DIEs for each llvm.dbg.compile_unit.

[Part 2]

Create separate llvm.dbg.compile_unit for each input file. Mark compile unit create for main_input_filename as "main" compile unit. Use appropriate compile unit, based on source location information collected from the tree node, while creating llvm.dbg.* values using DebugInfo APIs.

---

This is Part 1.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63400 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 18:20:31 +00:00
Zhou Sheng
c0425b646f As Duncan suggested, add braces for the one-line "else branch".
Thanks, Duncan.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63389 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 09:44:49 +00:00
Zhou Sheng
904ebf9bf4 This is to fix the bug in IntrinsicLowering.cpp,
the LowerPartSet(). It didn't handle the situation correctly when
the low, high argument values are in reverse order (low > high)
with 'Val' type i32 (a corner case).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63388 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 09:02:50 +00:00
Sanjiv Gupta
5af3ee2818 Fixed the comment. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63387 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 09:01:44 +00:00
Mike Stump
d6f175b3ec Add opposite_of and inverse_opt to support -fno- style options. This
is necessary for eventual gcc commmand line compatibility.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63384 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 08:19:46 +00:00
Sanjiv Gupta
e0ffc92508 Use sublw for comparison with literals instead of subwf.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63382 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 07:55:25 +00:00
Mon P Wang
7ad9b51278 When PerformBuildVectorCombine, avoid creating a X86ISD::VZEXT_LOAD of
an illegal type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63380 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 07:07:40 +00:00
Sanjiv Gupta
c8d7bc850d Enable emitting of constant values in non-default address space as well. The APIs emitting constants now take an additional parameter signifying the address space in which to emit. The APIs like getData8BitsDirective() etc are made virtual enabling targets to be able to define appropirate directivers for various sizes and address spaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63377 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 04:25:10 +00:00
Bill Wendling
826d11463b Propagate debug loc info in SimplifyNodeWithTwoResults.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63376 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 03:08:40 +00:00
Bill Wendling
326411dc69 Propagate debug loc info for MULHS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63375 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 03:00:18 +00:00
Bill Wendling
6d3bf8c4c3 Propagate debug loc info for SREM and UREM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63374 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 02:57:00 +00:00
Bill Wendling
07d8514049 Propagate debug loc info for UDIV.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63373 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 02:55:25 +00:00
Bill Wendling
944d34bfe8 Propagate debug loc info for SDIV.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 02:52:17 +00:00
Bill Wendling
73e16b2869 Forgot to propagate debug loc info here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63371 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 02:49:26 +00:00
Dan Gohman
3311a1f8f0 Fix a post-RA scheduling dependency bug.
If a MachineInstr doesn't have a memoperand but has an opcode that
is known to load or store, assume its memory reference may alias
*anything*, including stack slots which the compiler completely
controls.

To partially compensate for this, teach the ScheduleDAG building
code to do basic getUnderlyingValue analysis. This greatly
reduces the number of instructions that require restrictive
dependencies. This code will need to be revisited when we start
doing real alias analysis, but it should suffice for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63370 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 02:49:14 +00:00
Bill Wendling
9c8148ac93 Propagate debug loc info for MUL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63369 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 02:45:56 +00:00
Bill Wendling
b0702e0b7e Propagate debug loc info in SUB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63368 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 02:42:10 +00:00
Bill Wendling
14036c00c0 Propagate debug loc info in ADDC and ADDE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63367 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 02:38:00 +00:00
Bill Wendling
f4eb2269eb Propagate debug loc info in DAG combine's "ADD".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63366 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 02:31:17 +00:00
Bill Wendling
d69c3141ed - Propagate debug loc info in combineSelectAndUse().
- Modify ReassociateOps so that the resulting SDValue is what the comment claims
  it is.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63365 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 02:23:43 +00:00
Dale Johannesen
fa42dea48b Propagate debug info when building SelectionDAG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63359 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 01:34:22 +00:00
Devang Patel
6360089d63 Remove dead code, again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63358 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 01:27:49 +00:00
Devang Patel
425b64ecef Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63357 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 01:25:47 +00:00
Devang Patel
d234e59e57 Add DW_AT_declaration for class methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63356 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 01:21:46 +00:00
Bill Wendling
5c71acfb06 Propagate debug location info for the token factor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63355 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 01:13:16 +00:00
Devang Patel
bf3f5a08ee Add dump() routines to help debug debug info :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63353 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 01:03:10 +00:00
Bill Wendling
35247c3513 Add DebugLoc propagation to some of the methods in DAG combiner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63350 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30 00:45:56 +00:00
Owen Anderson
3ef4549d9d Correct the algorithms for choosing spill and restore points so that we don't try to insert loads/stores between call frame setup and the actual call.
This fixes the last known failure for the pre-alloc-splitter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63339 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 22:13:06 +00:00
Dan Gohman
15b3830bcd Explicitly add PseudoSourceValue information when lowering
BUILD_VECTOR and conversions to stack operations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63333 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 21:02:43 +00:00
Dan Gohman
1cc6b8ee78 Make a few things const, fix some comments, and simplify
some assertions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63328 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 19:49:27 +00:00
Chris Lattner
f87d28745a Fix windows build, patch by Marius Wachtler!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63325 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 18:53:28 +00:00
Evan Cheng
d5a4802708 Local register allocator shouldn't assume only the entry and landing pad basic blocks have live-ins.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63323 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 18:37:30 +00:00
Dan Gohman
2c65c3dfe6 Fix two typos that Duncan spotted in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63312 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 16:18:12 +00:00
Dan Gohman
197e88f796 In the case of an extractelement on an insertelement value,
the element indices may be equal if either one is not a
constant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63311 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 16:10:46 +00:00
Bill Wendling
56ab1a2815 Revert r63273. This was already implemented by Dale. There's no need for my
change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63301 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 09:01:55 +00:00
Owen Anderson
c0f3a0353c Fix an issue where restores could be inserted after a terminator instruction,
and an iterator invalidation issue.

FreeBench/pifft no longer miscompiles with these fixes!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63293 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 08:22:06 +00:00
Owen Anderson
4bfc209721 Comments are good. :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63276 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 05:41:02 +00:00
Owen Anderson
45e6855ea2 Add support for aggressive load-use-store folding. This takes care of the
vast majority of code size regressions introduced by pre-alloc-splitting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63274 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 05:28:55 +00:00
Bill Wendling
6e1bb38fb8 - Add DebugLoc to getTargetNode().
- Modify TableGen to add the DebugLoc when calling getTargetNode.

(The light-weight wrappers are only temporary. The non-DebugLoc version will be
removed once the whole debug info stuff is finished with.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63273 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 05:27:31 +00:00
Chris Lattner
cee3e7cb68 Fix PR3424, a static constructor ordering issue. Patch by Robert Schuster!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63269 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 04:43:42 +00:00
Evan Cheng
5a3c6a87b0 Exit with nice warnings when register allocator run out of registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63267 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 02:20:59 +00:00
Dan Gohman
e5af2d3a22 Make x86's BT instruction matching more thorough, and add some
dagcombines that help it match in several more cases. Add
several more cases to test/CodeGen/X86/bt.ll. This doesn't
yet include matching for BT with an immediate operand, it
just covers more register+register cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63266 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 01:59:02 +00:00
Evan Cheng
7ddee0ad24 A slight compile time optimization. If the caller knows there isn't a free register getReg() should not call getFreeReg().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63263 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 01:13:00 +00:00
Dale Johannesen
e8c17335c5 Add DebugLoc-sensitive versions of many node creation
functions.  Currently omitted:  memcpy, memmove, memset.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63259 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 00:47:48 +00:00
Evan Cheng
42cc6e33ec Fix comment about removeRange.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63255 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29 00:06:09 +00:00
Mon P Wang
e91a000889 Fixed lowering of v816 shuffles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63252 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28 23:11:14 +00:00
Bill Wendling
7ade28cd62 Add DebugLoc to the getNode() methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63245 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28 22:17:52 +00:00
Dale Johannesen
3edb43e620 Add DebugLoc-aware constructors for SDNode derived
classes (those that reasonably have a DebugLoc
associated with them).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63236 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28 21:18:29 +00:00
Devang Patel
f923574856 Do not forget to derived type while constructing an array type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63233 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28 21:08:20 +00:00
Chris Lattner
6e733d34ca Fix some issues with volatility, move "CanConvertToScalar" check
after the others.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63227 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28 20:16:43 +00:00
Mon P Wang
f7eef6811c Fixed extract element when the result needs to be promoted and the input widened.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63217 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28 18:53:39 +00:00
Dan Gohman
f560ffae1f Make isOperationLegal do what its name suggests, and introduce a
new isOperationLegalOrCustom, which does what isOperationLegal
previously did.

Update a bunch of callers to use isOperationLegalOrCustom
instead of isOperationLegal. In some case it wasn't obvious
which behavior is desired; when in doubt I changed then to
isOperationLegalOrCustom as that preserves their previous
behavior.

This is for the second half of PR3376.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63212 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28 17:46:25 +00:00