Older GCCs fail with: .../gcc/pair-fusion.cc: In member function ‘bool pair_fusion_bb_info::fuse_pair(bool, unsigned int, int, rtl_ssa::insn_info*, rtl_ssa::in sn_info*, base_cand&, const rtl_ssa::insn_range_info&)’: .../gcc/pair-fusion.cc:1790:40: error: ‘writeback’ is not a class, namespace, or enumeration if (m_pass->should_handle_writeback (writeback::ALL)
Renaming the enum type works around the name conflict with the local variable and also prevents future similar conflicts. gcc/ChangeLog: * pair-fusion.h (enum class writeback): Rename to... (enum class writeback_type): ...this. (struct pair_fusion): Adjust type name after renaming. * pair-fusion.cc (pair_fusion_bb_info::track_access): Likewise. (pair_fusion_bb_info::fuse_pair): Likewise. (pair_fusion::process_block): Likewise. --- Patch discussed in https://inbox.sourceware.org/gcc-patches/mptwmn93njq....@arm.com/ Tested on x86_64-linux-gnu. OK for master? gcc/pair-fusion.cc | 6 +++--- gcc/pair-fusion.h | 4 ++-- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/gcc/pair-fusion.cc b/gcc/pair-fusion.cc index 9f897ac04e2..26b2284ed37 100644 --- a/gcc/pair-fusion.cc +++ b/gcc/pair-fusion.cc @@ -426,7 +426,7 @@ pair_fusion_bb_info::track_access (insn_info *insn, bool load_p, rtx mem) return; // Ignore writeback accesses if the hook says to do so. - if (!m_pass->should_handle_writeback (writeback::EXISTING) + if (!m_pass->should_handle_writeback (writeback_type::EXISTING) && GET_RTX_CLASS (GET_CODE (XEXP (mem, 0))) == RTX_AUTOINC) return; @@ -1787,7 +1787,7 @@ pair_fusion_bb_info::fuse_pair (bool load_p, // update of the base register and try and fold it in to make this into a // writeback pair. insn_info *trailing_add = nullptr; - if (m_pass->should_handle_writeback (writeback::ALL) + if (m_pass->should_handle_writeback (writeback_type::ALL) && !writeback_effect && (!load_p || (!refers_to_regno_p (base_regno, base_regno + 1, XEXP (pats[0], 0), nullptr) @@ -2996,7 +2996,7 @@ void pair_fusion::process_block (bb_info *bb) rtx pat = PATTERN (rti); bool load_p; if (reload_completed - && should_handle_writeback (writeback::ALL) + && should_handle_writeback (writeback_type::ALL) && pair_mem_insn_p (rti, load_p)) try_promote_writeback (insn, load_p); diff --git a/gcc/pair-fusion.h b/gcc/pair-fusion.h index 2a38dc8f743..45e4edceecb 100644 --- a/gcc/pair-fusion.h +++ b/gcc/pair-fusion.h @@ -75,7 +75,7 @@ struct alias_walker; // When querying should_handle_writeback, this enum is used to // qualify which opportunities we are asking about. -enum class writeback { +enum class writeback_type { // Only those writeback opportunities that arise from existing // auto-increment accesses. EXISTING, @@ -123,7 +123,7 @@ struct pair_fusion { // Return true if we should try to handle writeback opportunities. // WHICH determines the kinds of writeback opportunities the caller // is asking about. - virtual bool should_handle_writeback (enum writeback which) = 0; + virtual bool should_handle_writeback (writeback_type which) = 0; // Given BASE_MEM, the mem from the lower candidate access for a pair, // and LOAD_P (true if the access is a load), check if we should proceed -- 2.45.1