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constraint managers
Summary: Replace calls to %clang/%clang_cc1 with %clang_analyze_cc1 when invoking static analyzer, and perform runtime substitution to select the appropriate constraint manager, per D28952.
Reviewers: xazax.hun, NoQ, zaks.anna, dcoughlin
Subscribers: mgorny, rgov, mikhail.ramalho, a.sidorin, cfe-commits
Differential Revision: https://reviews.llvm.org/D30373
llvm-svn: 296895
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multiple constraint managers"
This reverts commit ea36f1406e1f36bf456c3f3929839b024128e468.
llvm-svn: 296841
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constraint managers
Summary: Replace calls to %clang/%clang_cc1 with %clang_analyze_cc1 when invoking static analyzer, and perform runtime substitution to select the appropriate constraint manager, per D28952.
Reviewers: xazax.hun, NoQ, zaks.anna, dcoughlin
Subscribers: mgorny, rgov, mikhail.ramalho, a.sidorin, cfe-commits
Differential Revision: https://reviews.llvm.org/D30373
llvm-svn: 296837
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multiple constraint managers"
This reverts commit f93343c099fff646a2314cc7f4925833708298b1.
llvm-svn: 296836
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constraint managers
Summary: Replace calls to %clang/%clang_cc1 with %clang_analyze_cc1 when invoking static analyzer, and perform runtime substitution to select the appropriate constraint manager, per D28952.
Reviewers: xazax.hun, NoQ, zaks.anna, dcoughlin
Subscribers: mgorny, rgov, mikhail.ramalho, a.sidorin, cfe-commits
Differential Revision: https://reviews.llvm.org/D30373
llvm-svn: 296835
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multiple constraint managers"
This reverts commit 1b28d0b10e1c8feccb971abb6ef7a18bee589830.
llvm-svn: 296422
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constraint managers
Summary: Replace calls to %clang/%clang_cc1 with %clang_analyze_cc1 when invoking static analyzer, and perform runtime substitution to select the appropriate constraint manager, per D28952.
Reviewers: xazax.hun, NoQ, zaks.anna, dcoughlin
Subscribers: mgorny, rgov, mikhail.ramalho, a.sidorin, cfe-commits
Differential Revision: https://reviews.llvm.org/D30373
llvm-svn: 296414
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constraint managers"
This reverts commit 8e7780b9e59ddaad1800baf533058d2c064d4787.
llvm-svn: 296317
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managers
Summary: Replace calls to %clang/%clang_cc1 with %clang_analyze_cc1 when invoking static analyzer, and perform runtime substitution to select the appropriate constraint manager, per D28952.
Reviewers: xazax.hun, NoQ, zaks.anna, dcoughlin
Subscribers: mgorny, rgov, mikhail.ramalho, a.sidorin, cfe-commits
Differential Revision: https://reviews.llvm.org/D30373
llvm-svn: 296312
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Now that we're invalidating global regions properly, we want to continue
taking advantage of a particular optimization: if all global regions are
invalidated together, we can represent the bindings of each region with
a "derived region value" symbol. Essentially, this lazily links each
global region with a single symbol created at invalidation time, rather
than binding each region with a new symbolic value.
We used to do this, but haven't been for a while; the previous commit
re-enabled this code path, and this handles the fallout.
<rdar://problem/13464044>
llvm-svn: 179554
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Previously, we were handling only simple integer constants for globals and
the smattering of implicitly-valued expressions handled by Environment for
default arguments. Now, we can use any integer constant expression that
Clang can evaluate, in addition to everything we handled before.
PR15094 / <rdar://problem/12830437>
llvm-svn: 175026
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This patch makes sure that we do not reinitialize static globals when
the function is called more than once along a path. The motivation is
code with initialization patterns that rely on 2 static variables, where
one of them has an initializer while the other does not. Currently, we
reset the static variables with initializers on every visit to the
function along a path.
llvm-svn: 174676
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'Inputs' subdirectory.
The general desire has been to have essentially all of the non-test
input files live in such directories, with some exceptions for obvious
and common patterns like 'foo.c' using 'foo.h'.
This came up because our distributed test runner couldn't find some of
the headers, for example with stl.cpp.
No functionality changed, just shuffling around here.
llvm-svn: 163674
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llvm-svn: 162588
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The new debug.ExprInspection checker looks for calls to clang_analyzer_eval,
and emits a warning of TRUE, FALSE, or UNKNOWN (or UNDEFINED) based on the
constrained value of its (boolean) argument. It does not modify the analysis
state though the conditions tested can result in branches (e.g. through the
use of short-circuit operators).
llvm-svn: 156919
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as a result of a call.
Problem:
Global variables, which come in from system libraries should not be
invalidated by all calls. Also, non-system globals should not be
invalidated by system calls.
Solution:
The following solution to invalidation of globals seems flexible enough
for taint (does not invalidate stdin) and should not lead to too
many false positives. We split globals into 3 classes:
* immutable - values are preserved by calls (unless the specific
global is passed in as a parameter):
A : Most system globals and const scalars
* invalidated by functions defined in system headers:
B: errno
* invalidated by all other functions (note, these functions may in
turn contain system calls):
B: errno
C: all other globals (which are not in A nor B)
llvm-svn: 147569
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