29f82a1465
move DecomposeGEPExpression out into ValueTracking.cpp
...
llvm-svn: 89956
2009-11-26 17:12:50 +00:00
631c5b2cb9
teach GetLinearExpression to be a bit more aggressive.
...
llvm-svn: 89955
2009-11-26 17:00:01 +00:00
5c1cfc252c
resolve a fixme. I haven't figured out how to write a testcase
...
to exercise this though.
llvm-svn: 89954
2009-11-26 16:52:32 +00:00
ba0014a44c
update status of this. basicaa is much improved now,
...
only missing the one form (in this testcase). Dan, do you
consider this example to be important?
llvm-svn: 89953
2009-11-26 16:42:00 +00:00
29bc8a91d3
Teach basicaa that x|c == x+c when the c bits of x are clear. This
...
allows us to compile the example in readme.txt into:
LBB1_1: ## %bb
movl 4(%rdx,%rax), %ecx
movl %ecx, %esi
imull (%rdx,%rax), %esi
imull %esi, %ecx
movl %esi, 8(%rdx,%rax)
imull %ecx, %esi
movl %ecx, 12(%rdx,%rax)
movl %esi, 16(%rdx,%rax)
imull %ecx, %esi
movl %esi, 20(%rdx,%rax)
addq $16, %rax
cmpq $4000, %rax
jne LBB1_1
instead of:
LBB1_1:
movl (%rdx,%rax), %ecx
imull 4(%rdx,%rax), %ecx
movl %ecx, 8(%rdx,%rax)
imull 4(%rdx,%rax), %ecx
movl %ecx, 12(%rdx,%rax)
imull 8(%rdx,%rax), %ecx
movl %ecx, 16(%rdx,%rax)
imull 12(%rdx,%rax), %ecx
movl %ecx, 20(%rdx,%rax)
addq $16, %rax
cmpq $4000, %rax
jne LBB1_1
GCC (4.2) doesn't seem to be able to eliminate the loads in this
testcase either, it generates:
L2:
movl (%rdx), %eax
imull 4(%rdx), %eax
movl %eax, 8(%rdx)
imull 4(%rdx), %eax
movl %eax, 12(%rdx)
imull 8(%rdx), %eax
movl %eax, 16(%rdx)
imull 12(%rdx), %eax
movl %eax, 20(%rdx)
addl $4, %ecx
addq $16, %rdx
cmpl $1002, %ecx
jne L2
llvm-svn: 89952
2009-11-26 16:26:43 +00:00
12dacdd359
teach basicaa that A[i] != A[i+1].
...
llvm-svn: 89951
2009-11-26 16:18:10 +00:00
453751031a
rename test
...
llvm-svn: 89950
2009-11-26 16:08:41 +00:00
d2add35d9d
typo
...
llvm-svn: 89949
2009-11-26 15:18:50 +00:00
40762fec73
issue a friendlier error if someone tries to send precompiled header to '-' (stdout)
...
this brings the error on
clang -c foo.h -o -
closer to
clang -c foo.h -o /dev/null
llvm-svn: 89948
2009-11-26 14:35:28 +00:00
334af99964
Remove dead forward declaration. Fix struct/class mismatch. Remove trailing whitespace.
...
llvm-svn: 89947
2009-11-26 13:09:03 +00:00
7ab5c491c1
Remove header which is bringing libAST in (on MSVC).
...
llvm-svn: 89946
2009-11-26 09:57:25 +00:00
4907c6f2ed
Remove unused variable.
...
llvm-svn: 89945
2009-11-26 07:48:44 +00:00
ffc066f4b9
Shortcut explicit calls to a trivial copy assignment operator.
...
llvm-svn: 89944
2009-11-26 07:45:48 +00:00
84a7e347bf
Simplify and fix up the handling of implicit constructors, copy assignment
...
operators, and destructors. Avoids generating declarations/definitions of
trivial constructors/destructors, and makes sure the trivial copy assignment
operator is generated when necessary.
llvm-svn: 89943
2009-11-26 07:40:08 +00:00
2350e0c3ba
Improve diagnostics in ReturnStackAddressChecker for returning a stack-allocated block. Implements the rest of <rdar://problem/7387385>.
...
llvm-svn: 89940
2009-11-26 07:14:50 +00:00
e5d8dd808e
Add test case that shows that dead stores checking now works in the presence of blocks.
...
llvm-svn: 89939
2009-11-26 06:55:36 +00:00
d15eb34d4b
Implement IRGen for MemberExpr referring to static member function.
...
llvm-svn: 89938
2009-11-26 06:08:14 +00:00
0ec57ff203
Don't run the LLVM Code tests by default.
...
llvm-svn: 89937
2009-11-26 05:09:00 +00:00
9acb35a5e8
Add -Werror for Clang and LLVM on Clang (headers) syntax tests.
...
llvm-svn: 89936
2009-11-26 05:08:53 +00:00
6d771bcd09
Add a Thunk struct to the vtable builder.
...
llvm-svn: 89935
2009-11-26 03:25:13 +00:00
cb422f1dbe
Use the more general Evaluate infrastructure for folding constant DeclRefs
...
instead of checking explicitly for an EnumConstantDecl. This folds references
to constant integer VarDecls, which has two benefits:
1. Slightly smaller emitted code from emitting a constant instead of a load,
and skipping emitting some constant globals.
2. Some code forgets to define static constant member variables; emitting a
load instead of the value in that case leads to a link error. (Such programs
are technically not well-formed, but in practice build with g++.)
llvm-svn: 89934
2009-11-26 03:22:21 +00:00
2f87c4f1a5
Add a CovariantThunkAdjustment struct that represents the adjustments needed for a covariant thunk.
...
llvm-svn: 89933
2009-11-26 03:09:37 +00:00
f873c2fb68
Slight tweak to the algorithm for getLinkage().
...
llvm-svn: 89932
2009-11-26 03:04:01 +00:00
8a5f75ed5d
Use new getLinkage() method to correctly compute whether a variable has
...
internal linkage. Fixes PR5433.
llvm-svn: 89931
2009-11-26 02:52:12 +00:00
abe274a8b0
Move the mangler into the CodeGen namespace. Change mangleThunk to take a ThunkAdjustment.
...
llvm-svn: 89930
2009-11-26 02:49:32 +00:00
f89dcdaf19
Add a PostVisitBlockExpr() method to RetainReleaseChecker to query for
...
the set of variables "captured" by a block. Until the analysis gets
more sophisticated, for now we stop the retain count tracking of any
objects (transitively) referenced by these variables.
llvm-svn: 89929
2009-11-26 02:38:19 +00:00
94f8c4a7d5
Teach RegionStoreManager::RemoveDeadBindings() about BlockDataRegions. Any VarRegion for a "captured" variable should also be considered live.
...
llvm-svn: 89928
2009-11-26 02:35:42 +00:00
3378b610ae
Add iterators to BlockDataRegion that allow clients to iterate over the VarRegions for "captured" variables for a block.
...
llvm-svn: 89927
2009-11-26 02:34:36 +00:00
705fd953ef
Added batch versions of GRState::scanReachableSymbols() so that clients can scan a collection of SVals or MemRegions all at once.
...
llvm-svn: 89926
2009-11-26 02:32:19 +00:00
c778540f9a
Add a ThunkAdjustment struct which holds a non-virtual and a virtual adjustment offset. Start using it. General cleanup in Mangle.cpp.
...
llvm-svn: 89925
2009-11-26 02:32:05 +00:00
0f5e6f8805
Enhance LiveVariables to understand that blocks can extend the liveness of a variable by "capturing" them in a BlockExpr.
...
This required two changes:
1) Added 'getReferencedgetReferencedBlockVars()' to AnalysisContext so
that clients can iterate over the "captured" variables in a block.
2) Modified LiveVariables to take an AnalysisContext& in its
constructor and to call getReferencedgetReferencedBlockVars() when it
processes a BlockExpr*.
llvm-svn: 89924
2009-11-26 02:31:33 +00:00
20d58fbd3a
Add C++ tests to try to parse and compile the LLVM libraries
...
llvm-svn: 89923
2009-11-26 02:28:53 +00:00
7a5b56aca9
Change the other half of aliasGEP (which handles GEP differencing) to use DecomposeGEPExpression. This dramatically simplifies and shrinks the code by eliminating the horrible CheckGEPInstructions method, fixes a miscompilation ( @test3 ) and makes the code more aggressive. In particular, we now handle the @test4 case, which is reduced from the SmallPtrSet constructor. Missing this caused us to emit a variable length memset instead of a fixed size one.
...
llvm-svn: 89922
2009-11-26 02:17:34 +00:00
0d23076adf
add a new random feature test
...
llvm-svn: 89921
2009-11-26 02:16:28 +00:00
5341c9679d
Generalize DecomposeGEPExpression to exactly handle what Value::getUnderlyingObject does (when TD is around). This allows us to avoid calling DecomposeGEPExpression unless the ultimate alias check we care about passes, speedup up BasicAA a bit.
...
llvm-svn: 89920
2009-11-26 02:14:59 +00:00
e0d81f2237
Factor out a LangStandard class and coalesce the information about the standards into LangStandards.def
...
- I'd appreciate another pair of eyeballs to double check this.
llvm-svn: 89919
2009-11-26 02:14:31 +00:00
5337f0c842
Fix thinko (-fno-builtin != -nobuiltininc).
...
llvm-svn: 89918
2009-11-26 02:14:16 +00:00
81fe60b787
Add clang -cc1 parsing for preprocessor options.
...
llvm-svn: 89917
2009-11-26 02:14:07 +00:00
cbc693579c
Add clang -cc1 parsing for header search options.
...
llvm-svn: 89916
2009-11-26 02:13:54 +00:00
8928899413
Implement a new DecomposeGEPExpression method, which decomposes a GEP into a list of scaled offsets. Use this to eliminate some previous ad-hoc code which was subtly broken (it assumed all Constant*'s were non-zero, but strange constant express could be zero).
...
llvm-svn: 89915
2009-11-26 02:13:03 +00:00
a99edbedd1
Use GEPOperator more pervasively to simplify code.
...
llvm-svn: 89914
2009-11-26 02:11:08 +00:00
8e09ad6f3c
update some notes slightly
...
llvm-svn: 89913
2009-11-26 01:51:18 +00:00
4f0b47d9e7
remove some redundant braces
...
llvm-svn: 89912
2009-11-26 01:50:12 +00:00
ff790f15c4
Refactor our handling of expression evaluation contexts, so that Sema
...
maintains a stack of evaluation contexts rather than having the parser
do it. This change made it simpler to track in which contexts
temporaries were created, so that we could...
"Forget" about temporaries created within unevaluated contexts, so
that we don't build a CXXExprWithTemporaries and, therefore, destroy
the integral-constness of our expressions. Fixes PR5609.
llvm-svn: 89908
2009-11-26 00:44:06 +00:00
a4c986cbdd
Test for 89905.
...
llvm-svn: 89906
2009-11-26 00:35:01 +00:00
595a16300c
When all defs of a vr are implicit_def, delete all of the defs.
...
llvm-svn: 89905
2009-11-26 00:32:36 +00:00
2d4ff12da9
Split tail duplication into a separate pass. This is needed to avoid
...
running tail duplication when doing branch folding for if-conversion, and
we also want to be able to run tail duplication earlier to fix some
reg alloc problems. Move the CanFallThrough function from BranchFolding
to MachineBasicBlock so that it can be shared by TailDuplication.
llvm-svn: 89904
2009-11-26 00:32:21 +00:00
1646cf6d05
Add missing case in switch statement.
...
llvm-svn: 89903
2009-11-25 23:58:21 +00:00
b63ad7a6c1
Refine MemRegions for blocks. Add a new region called
...
'BlockDataRegion' to distinguish between the code associated with a
block (which is represented by 'BlockTextRegion') and an instance of a
block, which includes both code and data. 'BlockDataRegion' has an
associated LocationContext, which can be used to eventually model the
lifetime of a block object once LocationContexts can represent scopes
(and iterations around a loop, etc.).
llvm-svn: 89900
2009-11-25 23:53:07 +00:00
979ac9fce4
Test for llvm-gcc checkin 89898.
...
llvm-svn: 89899
2009-11-25 23:50:09 +00:00
Chris Lattner