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As the comments in PR88309 show, there are two oversights in rs6000_gimple_fold_builtin that pass align in bytes to build_aligned_type but which actually requires align in bits, it causes unexpected ICE or hanging in function is_miss_rate_acceptable due to zero align_unit value. This patch is to fix them by converting bytes to bits, add an assertion on positive align_unit value and notes function build_aligned_type requires align measured in bits in its function comment. PR target/88309 Co-authored-by: Andrew Pinski <quic_apinski@quicinc.com> gcc/ChangeLog: * config/rs6000/rs6000-builtin.cc (rs6000_gimple_fold_builtin): Fix wrong align passed to function build_aligned_type. * tree-ssa-loop-prefetch.cc (is_miss_rate_acceptable): Add an assertion to ensure align_unit should be positive. * tree.cc (build_qualified_type): Update function comments. gcc/testsuite/ChangeLog: * gcc.target/powerpc/pr88309.c: New test. |
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