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authorChun-Chen Hsu <chunchenhsu@google.com>2018-03-13 17:44:52 +0800
committerChun-Chen TK Hsu <chunchenhsu@google.com>2018-03-20 20:17:00 +0000
commitfe187de9bd1aa479ab6cd198522bfd118d0d50ec (patch)
treebeb10d2550241e5f88e1bd7e153fc7b54da6ef1f /tests/configs
parent212649b01e90b28df6e1a66c1b98a944af5b05a9 (diff)
downloadgem5-fe187de9bd1aa479ab6cd198522bfd118d0d50ec.tar.xz
arch, arm: Fix implicit-fallthrough GCC warnings
GCC 7 generates spurious fallthrough warnings in nested switch blocks where the inner switch block return. There is already a GCC fix [1] submitted for review but, until it is merged into GCC trunk, GEM5 will not build with GCC 7 due to these fallthrough warnings. This patch silences the spurious fallthrough warnings by appending a M5_UNREACHABLE statement in the outer switch cases. Note there is another GEM5 patch [2] to fix other fallthrough warnings. [1] https://gcc.gnu.org/ml/gcc-patches/2018-02/msg01105.html [2] https://gem5-review.googlesource.com/c/public/gem5/+/8541 Change-Id: I97cd8bfa90a88e93cee60cf27a8c93611d11a242 Signed-off-by: Chun-Chen Hsu <chunchenhsu@google.com> Reviewed-on: https://gem5-review.googlesource.com/9101 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
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