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-faligned-new does not work under Travis with clang #1478

veripoolbot opened this issue Jul 18, 2019 · 0 comments

-faligned-new does not work under Travis with clang #1478

veripoolbot opened this issue Jul 18, 2019 · 0 comments


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@veripoolbot veripoolbot commented Jul 18, 2019

Author Name: Todd Strader (@toddstrader)
Original Redmine Issue: 1478 from

It was discovered in #� that the -faligned-new flag causes errors when compiling Verilated code under Travis CI using clang. This should have been detected and dealt with via a test for this behavior in configure, but configure did not observe the same behavior.

For the time being, a band-aid has been applied to turn off this flag when compiling with clang under Travis:

AS_IF([test "x$TRAVIS_COMPILER" != xclang], [_MY_CXX_CHECK_OPT(CFG_CXXFLAGS_NO_UNUSED,-faligned-new)])

This resolves the Travis breakage but allows for the same issue to crop up on similar systems. Ultimately, we should understand why configure doesn't catch this behavior with Travis + clang so that the configure test can be improved and the band-aid can be removed.

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