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works only on intrinsics
Differential Revision: https://reviews.llvm.org/D55802
Reviewers: rjmccall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@349535 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@299877 91177308-0d34-0410-b5e6-96231b3b80d8
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Much to my surprise, '-disable-llvm-optzns' which I thought was the
magical flag I wanted to get at the raw LLVM IR coming out of Clang
deosn't do that. It still runs some passes over the IR. I don't want
that, I really want the *raw* IR coming out of Clang and I strongly
suspect everyone else using it is in the same camp.
There is actually a flag that does what I want that I didn't know about
called '-disable-llvm-passes'. I suspect many others don't know about it
either. It both does what I want and is much simpler.
This removes the confusing version and makes that spelling of the flag
an alias for '-disable-llvm-passes'. I've also moved everything in Clang
to use the 'passes' spelling as it seems both more accurate (*all* LLVM
passes are disabled, not just optimizations) and much easier to remember
and spell correctly.
This is part of simplifying how Clang drives LLVM to make it cleaner to
wire up to the new pass manager.
Differential Revision: https://reviews.llvm.org/D28047
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@290392 91177308-0d34-0410-b5e6-96231b3b80d8
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ARC ownership-convention function type modifications.
According to the Itanium ABI, vendor extended qualifiers are
supposed to be mangled in reverse-alphabetical order before
any CVR qualifiers. The ARC function type conventions are
plausibly order-significant (they are associated with the
function type), which permits us to ignore the need to correctly
inter-order them with any other vendor qualifiers on the parameter
and return types.
Implementing these rules correctly is technically an ABI break.
Apple is comfortable with the risk of incompatibility here for
the ARC features, and I believe that address-space qualification
is still uncommon enough to allow us to adopt the conforming
rule without serious risk. Still, targets which make heavy
use of address space qualification may want to revert to the
non-conforming order.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@262414 91177308-0d34-0410-b5e6-96231b3b80d8
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This reverts commit r234700. It turns out that the lifetime markers
were not the cause of Chromium failing but a bug which was uncovered by
optimizations exposed by the markers.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@235553 91177308-0d34-0410-b5e6-96231b3b80d8
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If the revert helps, I'll get a repro this Monday. Else I'll put the change
back in.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@234700 91177308-0d34-0410-b5e6-96231b3b80d8
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Now that TailRecursionElimination has been fixed with r222354, the
threshold on size for lifetime marker insertion can be removed. This
only affects named temporary though, as the patch for unnamed temporaries
is still in progress.
My previous commit (r222993) was not handling debuginfo correctly, but
this could only be seen with some asan tests. Basically, lifetime markers
are just instrumentation for the compiler's usage and should not affect
debug information; however, the cleanup infrastructure was assuming it
contained only destructors, i.e. actual code to be executed, and was
setting the breakpoint for the end of the function to the closing '}', and
not the return statement, in order to show some destructors have been
called when leaving the function. This is wrong when the cleanups are only
lifetime markers, and this is now fixed.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@234581 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@230795 91177308-0d34-0410-b5e6-96231b3b80d8
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Revert r222993 while I investigate some MemorySanitizer failures.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@222995 91177308-0d34-0410-b5e6-96231b3b80d8
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Now that TailRecursionElimination has been fixed with r222354, the
threshold on size for lifetime marker insertion can be removed. This
only affects named temporary though, as the patch for unnamed temporaries
is still in progress.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@222993 91177308-0d34-0410-b5e6-96231b3b80d8
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Revert this patch while I investigate some sanitizer failures off-line.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@219307 91177308-0d34-0410-b5e6-96231b3b80d8
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Boostrapping LLVM+Clang+LLDB without threshold on object size for
lifetime markers insertion has shown there was no significant change
in compile time, so let the stack slot colorizer do its optimization
for all slots.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@219303 91177308-0d34-0410-b5e6-96231b3b80d8
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Because references must be initialized using some evaluated expression, they
must point to something, and a callee can assume the reference parameter is
dereferenceable. Taking advantage of a new attribute just added to LLVM, mark
them as such.
Because dereferenceability in addrspace(0) implies nonnull in the backend, we
don't need both attributes. However, we need to know the size of the object to
use the dereferenceable attribute, so for incomplete types we still emit only
nonnull.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@213386 91177308-0d34-0410-b5e6-96231b3b80d8
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type in a function type where the C++ type is a reference. Update the tests.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@209723 91177308-0d34-0410-b5e6-96231b3b80d8
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tests fail.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188447 91177308-0d34-0410-b5e6-96231b3b80d8
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-std=c++0x. Patch by Ahmed Charles!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141900 91177308-0d34-0410-b5e6-96231b3b80d8
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increasingly prevailing case to the point that new features
like ARC don't even support the fragile ABI anymore.
This required a little bit of reshuffling with exceptions
because a check was assuming that ObjCNonFragileABI was
only being set in ObjC mode, and that's actually a bit
obnoxious to do.
Most, though, it involved a perl script to translate a ton
of test cases.
Mostly no functionality change for driver users, although
there are corner cases with disabling language-specific
exceptions that we should handle more correctly now.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140957 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133861 91177308-0d34-0410-b5e6-96231b3b80d8
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objects, so that we steal the retain count of a temporary __strong
pointer (zeroing out that temporary), eliding a retain/release
pair. Addresses <rdar://problem/9364932>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133621 91177308-0d34-0410-b5e6-96231b3b80d8
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