Rename SemIR::Node to SemIR::Inst (#3355)

And generally replace "node" by "inst" in the code and "instruction" in comments. --------- Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
2026-10-04 22:02:52 +01:00 · 2023-11-02 17:58:30 +00:00
parent 35c2142392
commit 7edfd8e02a
63 changed files with 2136 additions and 2115 deletions
@@ -0,0 +1,74 @@
+// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
+// Exceptions. See /LICENSE for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+#include "common/vlog.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/StringExtras.h"
+#include "toolchain/check/node_block_stack.h"
+#include "toolchain/sem_ir/inst.h"
+
+namespace Carbon::Check {
+
+auto InstBlockStack::Push(SemIR::InstBlockId id) -> void {
+  CARBON_VLOG() << name_ << " Push " << size_ << "\n";
+  CARBON_CHECK(size_ < (1 << 20))
+      << "Excessive stack size: likely infinite loop";
+  if (size_ == static_cast<int>(stack_.size())) {
+    stack_.emplace_back();
+  }
+  stack_[size_].Reset(id);
+  ++size_;
+}
+
+auto InstBlockStack::PeekOrAdd(int depth) -> SemIR::InstBlockId {
+  CARBON_CHECK(size() > depth) << "no such block";
+  int index = size() - depth - 1;
+  auto& slot = stack_[index];
+  if (!slot.id.is_valid()) {
+    slot.id = sem_ir_->inst_blocks().AddDefaultValue();
+  }
+  return slot.id;
+}
+
+auto InstBlockStack::Pop() -> SemIR::InstBlockId {
+  CARBON_CHECK(!empty()) << "no current block";
+  --size_;
+  auto& back = stack_[size_];
+
+  // Finalize the block.
+  if (!back.content.empty() && back.id != SemIR::InstBlockId::Unreachable) {
+    if (back.id.is_valid()) {
+      sem_ir_->inst_blocks().Set(back.id, back.content);
+    } else {
+      back.id = sem_ir_->inst_blocks().Add(back.content);
+    }
+  }
+
+  CARBON_VLOG() << name_ << " Pop " << size_ << ": " << back.id << "\n";
+  if (!back.id.is_valid()) {
+    return SemIR::InstBlockId::Empty;
+  }
+  return back.id;
+}
+
+auto InstBlockStack::PopAndDiscard() -> void {
+  CARBON_CHECK(!empty()) << "no current block";
+  --size_;
+  CARBON_VLOG() << name_ << " PopAndDiscard " << size_ << "\n";
+}
+
+auto InstBlockStack::PrintForStackDump(llvm::raw_ostream& output) const
+    -> void {
+  output << name_ << ":\n";
+  for (const auto& [i, entry] : llvm::enumerate(stack_)) {
+    output << "\t" << i << ".\t" << entry.id << "\t{";
+    llvm::ListSeparator sep;
+    for (auto id : entry.content) {
+      output << sep << id;
+    }
+    output << "}\n";
+  }
+}
+
+}  // namespace Carbon::Check