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Summary:
When this was rewritten in D43737, the logic changed to better explore infinite loops. The check for a reachable exit block was deleted which accidentally introduced false positives in case the exit node was unreachable.
We were testing for cases like this, but @steven_wu provided an additional test case that I've included in the regression tests for this patch.
Reviewers: steven_wu, rtrieu
Reviewed By: steven_wu, rtrieu
Subscribers: cfe-commits, steven_wu
Tags: #clang
Differential Revision: https://reviews.llvm.org/D58122
llvm-svn: 353984
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Summary: Rewrites -Winfinite-recursion to remove the state dictionary and explore paths in loops - especially infinite loops. The new check now detects recursion in loop bodies dominated by a recursive call.
Reviewers: rsmith, rtrieu
Reviewed By: rtrieu
Subscribers: lebedev.ri, cfe-commits
Differential Revision: https://reviews.llvm.org/D43737
llvm-svn: 328173
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functions like Foo<5>::run() the same way as run<5>() for this warning.
llvm-svn: 198470
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This new warning detects when a function will recursively call itself on every
code path though that function. This catches simple recursive cases such as:
void foo() {
foo();
}
As well as more complex functions like:
void bar() {
if (test()) {
bar();
return;
} else {
bar();
}
return;
}
This warning uses the CFG. As with other CFG-based warnings, this is off
by default. Due to false positives, this warning is also disabled for
templated functions.
llvm-svn: 197853
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