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c8b82ccbcf
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6553 Commits

Author SHA1 Message Date
Gabor Greif
c8b82ccbcf Introduce ImmutableCallSite, useful for contexts where no mutation 
is necessary. Inherits from new templated baseclass CallSiteBase<>
which is highly customizable. Base CallSite on it too, in a configuration
that allows full mutation.
Adapt some call sites in analyses to employ ImmutableCallSite.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100100 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-01 08:21:08 +00:00
Nick Lewycky
2d7820cb78 Clean up this file a little, no functionality change. This is a subset of my 
patch back in r94322.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100097 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-01 07:34:00 +00:00
Bob Wilson
a0c6057061 Rewrite part of the SSAUpdater to be more careful about inserting redundant 
PHIs.  The previous algorithm was unable to reliably detect when existing
PHIs in a cycle can be reused.  I'm still working on reducing a testcase.
Radar 7711900.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100047 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-31 20:51:00 +00:00
Dale Johannesen
536d31b5b3 Fix a nasty dangling-pointer heisenbug that could 
generate wrong code pretty much anywhere AFAICT.
A case that hits the bug reproducibly is impossible,
but the situation was like this:
Addr = ...
Store -> Addr
Addr2 = GEP , 0, 0
Store -> Addr2
Handling the first store, the code changed replaced Addr
with a sunkaddr and deleted Addr, but not its table
entry.  Code in OptimizedBlock replaced Addr2 with a
bitcast; if that happened to reuse the memory of Addr,
the old table entry was erroneously found when handling
the second store.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100044 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-31 20:37:15 +00:00
Bob Wilson
100f090add Revert Mon Ping's change 99928, since it broke all the llvm-gcc buildbots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99948 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-30 22:27:04 +00:00
Mon P Wang
808bab0169 Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset, 
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
A update of langref will occur in a subsequent checkin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99928 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-30 20:55:56 +00:00
Dan Gohman
4bb31bfaa3 Fix a grammaro. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99917 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-30 20:04:57 +00:00
Gabor Greif
bd44314c67 fix two cases where the arguments were extracted from the wrong range out of the InvokeInst 
spotted by baldrick -- thanks\!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99914 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-30 19:20:53 +00:00
Jeffrey Yasskin
0826e1c519 Remove another memory leak from ABCD by using Edges by value instead of 
pointer.  There was also a SmallPtrSet whose settiness wasn't being used, so I
changed it to a SmallVector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99713 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-27 09:09:17 +00:00
Jeffrey Yasskin
e9580bf254 In ABCD, change the non-null Bound*s to Bound&s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99711 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-27 08:15:46 +00:00
Jeffrey Yasskin
2f97b46f7b Fix a memory leak in ABCD by giving ownership of Bound objects to the 
MemoizedResultChart.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99710 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-27 08:09:24 +00:00
Eric Christopher
6fde0bd39b When we promote a load of an argument make sure to take the alignment 
of the previous load - it's usually important.  For example, we don't want
to blindly turn an unaligned load into an aligned one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99699 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-27 01:54:00 +00:00
Dan Gohman
449f31cb9d Ignore debug intrinsics in yet more places. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99580 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-26 00:33:27 +00:00
Gabor Greif
44424646ac rename pred_const_iterator to const_pred_iterator for consistency's sake 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99567 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 23:25:28 +00:00
Gabor Greif
60ad781c61 rename use_const_iterator to const_use_iterator for consistency's sake 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99564 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 23:06:16 +00:00
Chris Lattner
219d77430b fix PR6642, GVN forwarding from memset to load of the base of the memset. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99488 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 05:58:19 +00:00
Eric Christopher
0623e90398 Temporarily revert this, it's causing an issue with an internal project. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99451 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-24 23:35:21 +00:00
Evan Cheng
eb8c6459fc Move OptChkCall off LibCallOptimization into StrCpyOpt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99418 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-24 20:19:04 +00:00
Gabor Greif
c9f7500d17 Finally land the InvokeInst operand reordering. 
I have audited all getOperandNo calls now, fixing
hidden assumptions. CallSite related uglyness will
be eliminated successively.

Note this patch has a long and griveous history,
for all the back-and-forths have a look at
CallSite.h's log.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99399 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-24 13:21:49 +00:00
Gabor Greif
6d6aaeca4f tighten a type and remove trailing whitespace, no functional changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99398 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-24 11:58:07 +00:00
Gabor Greif
bd1f99341e increase const goodness and remove pointless getUser() calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99395 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-24 10:29:52 +00:00
Gabor Greif
5eff285d8d cache result of UI.getOperandNo() instead of calling it twice, it is cheaper this way 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99394 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-24 10:12:54 +00:00
Chris Lattner
a54934ae9d add some accessors to callsite/callinst/invokeinst to check 
for the noinline attribute, and make the inliner refuse to
inline a call site when the call site is marked noinline even
if the callee isn't.  This fixes PR6682.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99341 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 22:59:07 +00:00
Bill Wendling
87a10f5b2f Skip debugging intrinsics when sinking unused invariants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99324 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 21:15:59 +00:00
Evan Cheng
0289b419a4 Teach simplify libcall to transform __strcpy_chk to __memcpy_chk to enable optimizations down stream. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99282 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 15:48:04 +00:00
Gabor Greif
0054c7a867 add assert in argpromotion, which cannot trigger 
if Function::hasAddressTaken works as advertised

also included some cosmetic cleanups

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99276 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 14:40:20 +00:00
Evan Cheng
9d8f002d8f Fix an incorrect logic causing instcombine to miss some _chk -> non-chk transformations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99263 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 06:06:09 +00:00
Evan Cheng
c94347f641 Fix 80 col violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99224 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-22 22:44:31 +00:00
Gabor Greif
1cde4af157 backing out r99170 because it still fails on clang-x86_64-darwin10-fnt 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99171 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-22 09:11:00 +00:00
Gabor Greif
9b1061e2e3 Now that hopefully all direct accesses to InvokeInst operands are fixed 
we can reapply the InvokeInst operand reordering patch. (see r98957).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99170 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-22 08:28:00 +00:00
Gabor Greif
654c06f645 Add a setCalledFunction member to InvokeInst (like in CallInst) 
and use this (as well as getCalledValue) to access the callee,
instead of {g|s}etOperand(0).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99084 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-20 21:00:25 +00:00
Dan Gohman
472fdf7090 Clear the SCEVExpander's insertion point after making deletions, 
so that the SCEVExpander doesn't retain a dangling pointer as its
insert position. The dangling pointer in this case wasn't ever used
to insert new instructions, but it was causing trouble with
SCEVExpander's code for automatically advancing its insert position
past debug intrinsics.

This fixes use-after-free errors that valgrind noticed in
test/Transforms/IndVarSimplify/2007-06-06-DeleteDanglesPtr.ll and
test/Transforms/IndVarSimplify/exit_value_tests.ll.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99036 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-20 03:53:53 +00:00
Gabor Greif
cc52ed0c4f back out r98957, it broke http://smooshlab.apple.com:8010/builders/clang-x86_64-darwin10-fnt/builds/703 in the nightly test suite 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98958 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-19 13:50:02 +00:00
Gabor Greif
f4f10e3779 Recommit r80858 again (which has been backed out in r80871). 
This time I did a self-hosted bootstrap on Linux x86-64,
with no problems. Let's see how darwin 64-bit self-hosting
goes. At the first sign of failure I'll back this out.

Maybe the valgrind bots give me a hint of what may be wrong
(it at all).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98957 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-19 11:55:53 +00:00
Benjamin Kramer
2d7186ae6d str[r]chr returns its pointer argument so we cannot mark it as nocapture. Thanks to Duncan for spotting my mistake. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98671 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-16 20:33:15 +00:00
Benjamin Kramer
4446b04052 Mark str[r]chr readonly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98663 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-16 19:36:43 +00:00
Devang Patel
7b9f6b1b21 Skip debug info intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98584 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-15 22:23:03 +00:00
Devang Patel
689fac0226 Skip debug info intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98581 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-15 21:25:29 +00:00
Devang Patel
ca70495797 In "empty" bb, the return instruction may not be first instruction, if dbg value intrinsics are present in this bb. Use terminator to find return instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98565 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-15 19:05:46 +00:00
Bill Wendling
ead138bc62 Skip over debug info when trying to merge two return BBs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98491 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-14 10:40:55 +00:00
Bill Wendling
c69b4a5b8b Make returns more consistent with others. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98490 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-14 10:40:28 +00:00
Benjamin Kramer
a30b181c20 Add a virtual destructor and give vtable a home. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98376 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-12 20:41:29 +00:00
Benjamin Kramer
0b6cb50738 Factor checked library call optimization into a common helper class and use it 
to unify the almost identical code in CodeGenPrepare and InstCombineCalls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98338 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-12 09:27:41 +00:00
Nate Begeman
75d5fe9213 Whoops this already existed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98297 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-11 23:21:19 +00:00
Nate Begeman
47a53a6e4c Add a handful of additional useful pass manager things to the C API 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98296 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-11 23:06:07 +00:00
Benjamin Kramer
7fa30b8e5d stpcpy is so similar to strcpy, it doesn't deserve a complete copy of the __strcpy_chk -> strcpy code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98284 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-11 20:45:13 +00:00
Eric Christopher
19888ca8b4 Lower stpcpy_chk when possible. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98274 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-11 19:24:34 +00:00
Eric Christopher
b0722af798 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98260 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-11 17:45:38 +00:00
Eric Christopher
040056fd11 Do some final lowering in CodeGenPrepare of _chk calls similar to 
that in InstCombineCalls.

More call lowering needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98228 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-11 02:41:03 +00:00
Eric Christopher
bd97376200 Add strncpy libcall creator. Use it when it should be used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98219 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-11 01:25:07 +00:00