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Commit 19109565 authored by 4ast's avatar 4ast
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Merge pull request #19 from plumgrid/llvm_fix 

Fix for LLVM C++ api change
parents 4532038b 7d78f387
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Showing with 19 additions and 16 deletions
src/cc/codegen_llvm.cc
View file @ 19109565
......@@ -388,7 +388,8 @@ StatusTuple CodegenLLVM::visit_packet_expr_node(PacketExprNode *n) {
LoadInst *offset_ptr = B.CreateLoad(offset_mem);
Value *skb_hdr_offset = B.CreateAdd(offset_ptr, B.getInt64(bit_offset >> 3));
Value *rhs = B.CreateIntCast(pop_expr(), B.getInt64Ty(), false);
B.CreateCall5(store_fn, skb_ptr8, skb_hdr_offset, B.getInt64(bit_offset & 0x7), B.getInt64(bit_width), rhs);
B.CreateCall(store_fn, vector<Value *>({skb_ptr8, skb_hdr_offset, B.getInt64(bit_offset & 0x7),
B.getInt64(bit_width), rhs}));
} else {
emit("bpf_dext_pkt(pkt, %s + %zu, %zu, %zu)", n->id_->c_str(), bit_offset >> 3, bit_offset & 0x7, bit_width);
Function *load_fn = mod_->getFunction("bpf_dext_pkt");
......@@ -397,7 +398,8 @@ StatusTuple CodegenLLVM::visit_packet_expr_node(PacketExprNode *n) {
Value *skb_ptr8 = B.CreateBitCast(skb_ptr, B.getInt8PtrTy());
LoadInst *offset_ptr = B.CreateLoad(offset_mem);
Value *skb_hdr_offset = B.CreateAdd(offset_ptr, B.getInt64(bit_offset >> 3));
expr_ = B.CreateCall4(load_fn, skb_ptr8, skb_hdr_offset, B.getInt64(bit_offset & 0x7), B.getInt64(bit_width));
expr_ = B.CreateCall(load_fn, vector<Value *>({skb_ptr8, skb_hdr_offset,
B.getInt64(bit_offset & 0x7), B.getInt64(bit_width)}));
// this generates extra trunc insns whereas the bpf.load fns already
// trunc the values internally in the bpf interpeter
//expr_ = B.CreateTrunc(pop_expr(), B.getIntNTy(bit_width));
......@@ -580,13 +582,14 @@ StatusTuple CodegenLLVM::emit_table_lookup(MethodCallExprNode *n) {
Function *lookup_fn = mod_->getFunction("bpf_map_lookup_elem_");
if (!lookup_fn) return mkstatus_(n, "bpf_map_lookup_elem_ undefined");
CallInst *pseudo_call = B.CreateCall2(pseudo_fn, B.getInt64(BPF_PSEUDO_MAP_FD), B.getInt64(table_fd_it->second));
CallInst *pseudo_call = B.CreateCall(pseudo_fn, vector<Value *>({B.getInt64(BPF_PSEUDO_MAP_FD),
B.getInt64(table_fd_it->second)}));
Value *pseudo_map_fd = pseudo_call;
TRY2(arg0->accept(this));
Value *key_ptr = B.CreateBitCast(pop_expr(), B.getInt8PtrTy());
expr_ = B.CreateCall2(lookup_fn, pseudo_map_fd, key_ptr);
expr_ = B.CreateCall(lookup_fn, vector<Value *>({pseudo_map_fd, key_ptr}));
if (table->type_id()->name_ == "FIXED_MATCH" || table->type_id()->name_ == "INDEXED") {
if (n->args_.size() == 2) {
......@@ -620,8 +623,8 @@ StatusTuple CodegenLLVM::emit_table_update(MethodCallExprNode *n) {
Function *update_fn = mod_->getFunction("bpf_map_update_elem_");
if (!update_fn) return mkstatus_(n, "bpf_map_update_elem_ undefined");
CallInst *pseudo_call = B.CreateCall2(pseudo_fn, B.getInt64(BPF_PSEUDO_MAP_FD),
B.getInt64(table_fd_it->second));
CallInst *pseudo_call = B.CreateCall(pseudo_fn, vector<Value *>({B.getInt64(BPF_PSEUDO_MAP_FD),
B.getInt64(table_fd_it->second)}));
Value *pseudo_map_fd = pseudo_call;
TRY2(arg0->accept(this));
......@@ -631,7 +634,7 @@ StatusTuple CodegenLLVM::emit_table_update(MethodCallExprNode *n) {
TRY2(arg1->accept(this));
Value *value_ptr = B.CreateBitCast(pop_expr(), B.getInt8PtrTy());
expr_ = B.CreateCall4(update_fn, pseudo_map_fd, key_ptr, value_ptr, B.getInt64(BPF_ANY));
expr_ = B.CreateCall(update_fn, vector<Value *>({pseudo_map_fd, key_ptr, value_ptr, B.getInt64(BPF_ANY)}));
} else {
return mkstatus_(n, "unsupported");
}
......@@ -650,15 +653,15 @@ StatusTuple CodegenLLVM::emit_table_delete(MethodCallExprNode *n) {
Function *update_fn = mod_->getFunction("bpf_map_update_elem_");
if (!update_fn) return mkstatus_(n, "bpf_map_update_elem_ undefined");
CallInst *pseudo_call = B.CreateCall2(pseudo_fn, B.getInt64(BPF_PSEUDO_MAP_FD),
B.getInt64(table_fd_it->second));
CallInst *pseudo_call = B.CreateCall(pseudo_fn, vector<Value *>({B.getInt64(BPF_PSEUDO_MAP_FD),
B.getInt64(table_fd_it->second)}));
Value *pseudo_map_fd = pseudo_call;
TRY2(arg0->accept(this));
Value *key_ptr = B.CreateBitCast(pop_expr(), B.getInt8PtrTy());
if (table->type_id()->name_ == "FIXED_MATCH" || table->type_id()->name_ == "INDEXED") {
expr_ = B.CreateCall2(update_fn, pseudo_map_fd, key_ptr);
expr_ = B.CreateCall(update_fn, vector<Value *>({pseudo_map_fd, key_ptr}));
} else {
return mkstatus_(n, "unsupported");
}
......@@ -735,7 +738,7 @@ StatusTuple CodegenLLVM::emit_incr_cksum(MethodCallExprNode *n, size_t sz) {
LoadInst *skb_ptr = B.CreateLoad(skb_mem);
Value *skb_ptr8 = B.CreateBitCast(skb_ptr, B.getInt8PtrTy());
expr_ = B.CreateCall5(csum_fn, skb_ptr8, offset, old_val, new_val, flags);
expr_ = B.CreateCall(csum_fn, vector<Value *>({skb_ptr8, offset, old_val, new_val, flags}));
return mkstatus(0);
}
......@@ -790,15 +793,15 @@ StatusTuple CodegenLLVM::visit_table_index_expr_node(TableIndexExprNode *n) {
TRY2(lookup_struct_type(n->table_->leaf_type_, &leaf_type));
PointerType *leaf_ptype = PointerType::getUnqual(leaf_type);
CallInst *pseudo_call = B.CreateCall2(pseudo_fn, B.getInt64(BPF_PSEUDO_MAP_FD),
B.getInt64(table_fd_it->second));
CallInst *pseudo_call = B.CreateCall(pseudo_fn, vector<Value *>({B.getInt64(BPF_PSEUDO_MAP_FD),
B.getInt64(table_fd_it->second)}));
Value *pseudo_map_fd = pseudo_call;
TRY2(n->index_->accept(this));
Value *key_ptr = B.CreateBitCast(pop_expr(), B.getInt8PtrTy());
// result = lookup(key)
Value *lookup1 = B.CreateBitCast(B.CreateCall2(lookup_fn, pseudo_map_fd, key_ptr), leaf_ptype);
Value *lookup1 = B.CreateBitCast(B.CreateCall(lookup_fn, vector<Value *>({pseudo_map_fd, key_ptr})), leaf_ptype);
Value *result;
if (n->table_->policy_id()->name_ == "AUTO") {
......@@ -815,10 +818,10 @@ StatusTuple CodegenLLVM::visit_table_index_expr_node(TableIndexExprNode *n) {
Value *leaf_ptr = B.CreateBitCast(new AllocaInst(leaf_type, "", resolve_entry_stack()), B.getInt8PtrTy());
B.CreateMemSet(leaf_ptr, B.getInt8(0), B.getInt64(n->table_->leaf_id()->bit_width_ >> 3), 1);
// update(key, leaf)
B.CreateCall4(update_fn, pseudo_map_fd, key_ptr, leaf_ptr, B.getInt64(BPF_NOEXIST));
B.CreateCall(update_fn, vector<Value *>({pseudo_map_fd, key_ptr, leaf_ptr, B.getInt64(BPF_NOEXIST)}));
// result = lookup(key)
Value *lookup2 = B.CreateBitCast(B.CreateCall2(lookup_fn, pseudo_map_fd, key_ptr), leaf_ptype);
Value *lookup2 = B.CreateBitCast(B.CreateCall(lookup_fn, vector<Value *>({pseudo_map_fd, key_ptr})), leaf_ptype);
B.CreateBr(label_end);
B.SetInsertPoint(label_end);
......
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