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6545 Commits

Author SHA1 Message Date
Dan Gohman
d42e09d91e Ignore debug intrinsics in yet more places. 
llvm-svn: 99580
 2010-03-26 00:33:27 +00:00
Gabor Greif
6c6b2fd2b2 rename pred_const_iterator to const_pred_iterator for consistency's sake 
llvm-svn: 99567
 2010-03-25 23:25:28 +00:00
Gabor Greif
c78d720f02 rename use_const_iterator to const_use_iterator for consistency's sake 
llvm-svn: 99564
 2010-03-25 23:06:16 +00:00
Chris Lattner
0563804982 fix PR6642, GVN forwarding from memset to load of the base of the memset. 
llvm-svn: 99488
 2010-03-25 05:58:19 +00:00
Eric Christopher
1d38538fb6 Temporarily revert this, it's causing an issue with an internal project. 
llvm-svn: 99451
 2010-03-24 23:35:21 +00:00
Evan Cheng
c12c2d9bb4 Move OptChkCall off LibCallOptimization into StrCpyOpt. 
llvm-svn: 99418
 2010-03-24 20:19:04 +00:00
Gabor Greif
a2fbc0ae1b 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.

llvm-svn: 99399
 2010-03-24 13:21:49 +00:00
Gabor Greif
be18ae6781 tighten a type and remove trailing whitespace, no functional changes 
llvm-svn: 99398
 2010-03-24 11:58:07 +00:00
Gabor Greif
9027ffb918 increase const goodness and remove pointless getUser() calls 
llvm-svn: 99395
 2010-03-24 10:29:52 +00:00
Gabor Greif
11ff53146f cache result of UI.getOperandNo() instead of calling it twice, it is cheaper this way 
llvm-svn: 99394
 2010-03-24 10:12:54 +00:00
Chris Lattner
00eeac4179 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.

llvm-svn: 99341
 2010-03-23 22:59:07 +00:00
Bill Wendling
04803e8ef6 Skip debugging intrinsics when sinking unused invariants. 
llvm-svn: 99324
 2010-03-23 21:15:59 +00:00
Evan Cheng
d9e822345c Teach simplify libcall to transform __strcpy_chk to __memcpy_chk to enable optimizations down stream. 
llvm-svn: 99282
 2010-03-23 15:48:04 +00:00
Gabor Greif
161cb044f3 add assert in argpromotion, which cannot trigger 
if Function::hasAddressTaken works as advertised

also included some cosmetic cleanups

llvm-svn: 99276
 2010-03-23 14:40:20 +00:00
Evan Cheng
3f7842232e Fix an incorrect logic causing instcombine to miss some _chk -> non-chk transformations. 
llvm-svn: 99263
 2010-03-23 06:06:09 +00:00
Evan Cheng
9a7b270825 Fix 80 col violation. 
llvm-svn: 99224
 2010-03-22 22:44:31 +00:00
Gabor Greif
e1517a084f backing out r99170 because it still fails on clang-x86_64-darwin10-fnt 
llvm-svn: 99171
 2010-03-22 09:11:00 +00:00
Gabor Greif
7a743e15e3 Now that hopefully all direct accesses to InvokeInst operands are fixed 
we can reapply the InvokeInst operand reordering patch. (see r98957).

llvm-svn: 99170
 2010-03-22 08:28:00 +00:00
Gabor Greif
febf6ab718 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).

llvm-svn: 99084
 2010-03-20 21:00:25 +00:00
Dan Gohman
1a2abe5580 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.

llvm-svn: 99036
 2010-03-20 03:53:53 +00:00
Gabor Greif
6c56ed847e back out r98957, it broke http://smooshlab.apple.com:8010/builders/clang-x86_64-darwin10-fnt/builds/703 in the nightly test suite 
llvm-svn: 98958
 2010-03-19 13:50:02 +00:00
Gabor Greif
8335f9c0bf 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).

llvm-svn: 98957
 2010-03-19 11:55:53 +00:00
Benjamin Kramer
f2e4b5dd7f str[r]chr returns its pointer argument so we cannot mark it as nocapture. Thanks to Duncan for spotting my mistake. 
llvm-svn: 98671
 2010-03-16 20:33:15 +00:00
Benjamin Kramer
5cf5fd2ffa Mark str[r]chr readonly. 
llvm-svn: 98663
 2010-03-16 19:36:43 +00:00
Devang Patel
45c1505bf6 Skip debug info intrinsics. 
llvm-svn: 98584
 2010-03-15 22:23:03 +00:00
Devang Patel
b21991c4f5 Skip debug info intrinsics. 
llvm-svn: 98581
 2010-03-15 21:25:29 +00:00
Devang Patel
d3f41e8939 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. 
llvm-svn: 98565
 2010-03-15 19:05:46 +00:00
Bill Wendling
55e69d179b Skip over debug info when trying to merge two return BBs. 
llvm-svn: 98491
 2010-03-14 10:40:55 +00:00
Bill Wendling
ee84f27536 Make returns more consistent with others. 
llvm-svn: 98490
 2010-03-14 10:40:28 +00:00
Benjamin Kramer
a956527c92 Add a virtual destructor and give vtable a home. 
llvm-svn: 98376
 2010-03-12 20:41:29 +00:00
Benjamin Kramer
7b88a49f3e Factor checked library call optimization into a common helper class and use it 
to unify the almost identical code in CodeGenPrepare and InstCombineCalls.

llvm-svn: 98338
 2010-03-12 09:27:41 +00:00
Nate Begeman
2e41605d4f Whoops this already existed. 
llvm-svn: 98297
 2010-03-11 23:21:19 +00:00
Nate Begeman
5daa235c91 Add a handful of additional useful pass manager things to the C API 
llvm-svn: 98296
 2010-03-11 23:06:07 +00:00
Benjamin Kramer
2fc395659c stpcpy is so similar to strcpy, it doesn't deserve a complete copy of the __strcpy_chk -> strcpy code. 
llvm-svn: 98284
 2010-03-11 20:45:13 +00:00
Eric Christopher
607de1de53 Lower stpcpy_chk when possible. 
llvm-svn: 98274
 2010-03-11 19:24:34 +00:00
Eric Christopher
103e3ef893 Fix typo. 
llvm-svn: 98260
 2010-03-11 17:45:38 +00:00
Eric Christopher
4b7948e09e Do some final lowering in CodeGenPrepare of _chk calls similar to 
that in InstCombineCalls.

More call lowering needed.

llvm-svn: 98228
 2010-03-11 02:41:03 +00:00
Eric Christopher
43dc11c525 Add strncpy libcall creator. Use it when it should be used. 
llvm-svn: 98219
 2010-03-11 01:25:07 +00:00
Dan Gohman
2734ebd37f Add a DominatorTree argument to isLCSSA so that it doesn't have to 
compute a set of reachable blocks for itself each time it is called, which
is fairly frequently.

llvm-svn: 98179
 2010-03-10 19:38:49 +00:00
Dan Gohman
b7e0b87441 Fix a comment. 
llvm-svn: 98122
 2010-03-10 02:18:48 +00:00
Jakob Stoklund Olesen
b495cad7ca Try to keep the cached inliner costs around for a bit longer for big functions. 
The Caller cost info would be reset everytime a callee was inlined. If the
caller has lots of calls and there is some mutual recursion going on, the
caller cost info could be calculated many times.

This patch reduces inliner runtime from 240s to 0.5s for a function with 20000
small function calls.

This is a more conservative version of r98089 that doesn't break the clang
test CodeGenCXX/temp-order.cpp. That test relies on rather extreme inlining
for constant folding.

llvm-svn: 98099
 2010-03-09 23:02:17 +00:00
Jakob Stoklund Olesen
4497475905 Revert r98089, it was breaking a clang test. 
llvm-svn: 98094
 2010-03-09 22:43:37 +00:00
Jakob Stoklund Olesen
741dec43e4 Try to keep the cached inliner costs around for a bit longer for big functions. 
The Caller cost info would be reset everytime a callee was inlined. If the
caller has lots of calls and there is some mutual recursion going on, the
caller cost info could be calculated many times.

This patch reduces inliner runtime from 240s to 0.5s for a function with 20000
small function calls.

llvm-svn: 98089
 2010-03-09 22:17:11 +00:00
Jakob Stoklund Olesen
d62c2f554c Add inlining threshold to log output. 
llvm-svn: 98024
 2010-03-09 00:59:53 +00:00
Evan Cheng
4f2fd2d2be Re-commit 97860 with fix. getMallocAllocatedType may return null. 
llvm-svn: 98000
 2010-03-08 22:54:36 +00:00
Devang Patel
3b548aa8e2 Avoid using DIDescriptor.isNull(). 
This is a first step towards eliminating checks in Descriptor constructors.

llvm-svn: 97975
 2010-03-08 20:52:55 +00:00
Devang Patel
bc97f6b757 Revert r97947. 
llvm-svn: 97963
 2010-03-08 19:20:38 +00:00
Devang Patel
fe28599f6f Avoid using DIDescriptor.isNull(). 
This is a first step towards eliminating unncessary constructor checks in light weight DIDescriptor wrappers.

llvm-svn: 97947
 2010-03-08 18:25:48 +00:00
Eric Christopher
1810d77cb4 Let the fallthrough handle whether or not we've changed anything 
before we try to optimize.

llvm-svn: 97876
 2010-03-06 10:59:25 +00:00
Eric Christopher
a7fb58f5f5 Migrate _chk call lowering from SimplifyLibCalls to InstCombine. Stub 
out the remainder of the calls that we should lower in some way and
move the tests to the new correct directory. Fix up tests that are now
optimized more than they were before by -instcombine.

llvm-svn: 97875
 2010-03-06 10:50:38 +00:00