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Richard Yao schrieb: |
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>> To make code behave differently it needs substantial amount of code |
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>> to provide you an example. You need to him O2<->O3 behaviour delta |
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>> after all. But I will try (for a different warning, it should not matter |
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>> much). |
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> Thanks. I had been incorrect about -O3 giving not us some additional information for warnings. My apologies for the confusion. |
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>> |
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>> Below is a reduced example of a larger C++ program. |
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>> Many thanks to Ulya for providing recent example! |
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Not that it matters now, but there are examples of packages building at -O2 |
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but failing to build at -O3 optimization levels, due to -Werror. |
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One is dev-libs/libcss: https://bugs.gentoo.org/626752 |
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Best regards, |
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Chí-Thanh Christopher Nguyễn |
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