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27326 Commits

Author SHA1 Message Date
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64224 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-10 17:56:28 +00:00
Duncan Sands
35b5107951 Pacify gcc-4.3 (thinks IsConstant may be used 
uninitialized).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64220 91177308-0d34-0410-b5e6-96231b3b80d8
 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64142 91177308-0d34-0410-b5e6-96231b3b80d8
 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64124 91177308-0d34-0410-b5e6-96231b3b80d8
 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64094 91177308-0d34-0410-b5e6-96231b3b80d8
 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64035 91177308-0d34-0410-b5e6-96231b3b80d8
 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64000 91177308-0d34-0410-b5e6-96231b3b80d8
 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63992 91177308-0d34-0410-b5e6-96231b3b80d8
 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63978 91177308-0d34-0410-b5e6-96231b3b80d8
 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. :-)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63968 91177308-0d34-0410-b5e6-96231b3b80d8
 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63965 91177308-0d34-0410-b5e6-96231b3b80d8
 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63944 91177308-0d34-0410-b5e6-96231b3b80d8
 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63937 91177308-0d34-0410-b5e6-96231b3b80d8
 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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63934 91177308-0d34-0410-b5e6-96231b3b80d8
 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