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will be represented in the IR as a plain "i32" type. This causes the
tests to spuriously fail on platforms where int is not a 32-bit type,
or where the ABI requires attributes like "signext" or "zeroext" to
be used.
This patch adds -triple or -target parameters to force those tests
to use the i386-unknown-unknown target.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166551 91177308-0d34-0410-b5e6-96231b3b80d8
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flag as GCC uses: -fstrict-enums). There is a *lot* of code making
unwarranted assumptions about the underlying type of enums, and it
doesn't seem entirely reasonable to eagerly break all of it.
Much more importantly, the current state of affairs is *very* good at
optimizing based upon this information, which causes failures that are
very distant from the actual enum. Before we push for enabling this by
default, I think we need to implement -fcatch-undefined-behavior support
for instrumenting and trapping whenever we store or load a value outside
of the range. That way we can track down the misbehaving code very
quickly.
I discussed this with Rafael, and currently the only important cases he
is aware of are the bool range-based optimizations which are staying
hard enabled. We've not seen any issue with those either, and they are
much more important for performance.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153550 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153385 91177308-0d34-0410-b5e6-96231b3b80d8
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Thanks to NAKAMURA Takumi for finding it!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153383 91177308-0d34-0410-b5e6-96231b3b80d8
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metadata in clang for booleans and".
For i686 targets (eg. cygwin), I saw "Range must not be empty!" in verifier.
It produces (i32)[0x80000000:0x80000000) from (uint64_t)[0xFFFFFFFF80000000ULL:0x0000000080000000ULL), for signed i32 on MDNode::Range.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153382 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153380 91177308-0d34-0410-b5e6-96231b3b80d8
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c++ enums.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153360 91177308-0d34-0410-b5e6-96231b3b80d8
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