kparzysz-quic commented on a change in pull request #10710:
URL: https://github.com/apache/tvm/pull/10710#discussion_r833210119
##########
File path: src/target/llvm/codegen_hexagon.cc
##########
@@ -572,6 +574,43 @@ llvm::Value* CodeGenHexagon::CreateIntrinsic(const
CallNode* op) {
return CodeGenLLVM::CreateIntrinsic(op);
}
+void CodeGenHexagon::CreatePrintf(const std::string& format,
+ const std::vector<llvm::Value*> format_args)
{
+ // This function generates LLVM instructions to call HAP_debug_v2,
+ // as if the FARF macro in `HAP_farf.h` were called as
+ // FARF(ALWAYS, format, format_args[0], format_args[1], ...)
+ std::string func_name = "HAP_debug_v2";
+
+ llvm::Function* func = module_->getFunction(func_name);
+ if (func == nullptr) {
+ llvm::FunctionType* ftype = llvm::FunctionType::get(
+ t_void_, {t_int32_, t_char_->getPointerTo(), t_int32_,
t_char_->getPointerTo()}, true);
+ func = llvm::Function::Create(ftype, llvm::Function::ExternalLinkage,
func_name, module_.get());
+ }
+
+ llvm::Value* format_str = builder_->CreateGlobalStringPtr(format + "\0");
Review comment:
`format` already has `\0` at the end.
Also, you can pass the name as the second parameter (see
llvm/include/llvm/IR/IRBuilder.h for reference), (same at line 600 below).
##########
File path: src/target/llvm/codegen_hexagon.cc
##########
@@ -572,6 +574,43 @@ llvm::Value* CodeGenHexagon::CreateIntrinsic(const
CallNode* op) {
return CodeGenLLVM::CreateIntrinsic(op);
}
+void CodeGenHexagon::CreatePrintf(const std::string& format,
+ const std::vector<llvm::Value*> format_args)
{
Review comment:
Please use `llvm::ArrayRef` for non-mutable arrays (in LLVM-related
code).
##########
File path: src/target/llvm/codegen_hexagon.cc
##########
@@ -572,6 +574,43 @@ llvm::Value* CodeGenHexagon::CreateIntrinsic(const
CallNode* op) {
return CodeGenLLVM::CreateIntrinsic(op);
}
+void CodeGenHexagon::CreatePrintf(const std::string& format,
+ const std::vector<llvm::Value*> format_args)
{
+ // This function generates LLVM instructions to call HAP_debug_v2,
+ // as if the FARF macro in `HAP_farf.h` were called as
+ // FARF(ALWAYS, format, format_args[0], format_args[1], ...)
+ std::string func_name = "HAP_debug_v2";
+
+ llvm::Function* func = module_->getFunction(func_name);
+ if (func == nullptr) {
+ llvm::FunctionType* ftype = llvm::FunctionType::get(
+ t_void_, {t_int32_, t_char_->getPointerTo(), t_int32_,
t_char_->getPointerTo()}, true);
+ func = llvm::Function::Create(ftype, llvm::Function::ExternalLinkage,
func_name, module_.get());
+ }
+
+ llvm::Value* format_str = builder_->CreateGlobalStringPtr(format + "\0");
+ format_str->setName("printf_format_str");
+
+ // The value of FARF_ALWAYS_LEVEL, defined as HAP_LEVEL_HIGH
+ llvm::Value* level = ConstInt32(2);
+ level->setName("farf_always_level");
+
+ // There is no such filename for this print statement
+ llvm::Value* filename =
builder_->CreateGlobalStringPtr("generated-LLVM-code");
+ filename->setName("dummy_filename");
+
+ // There is no such line number for this print statement
+ llvm::Value* line_number = ConstInt32(1);
+ line_number->setName("dummy_line_number");
+
+ std::vector<llvm::Value*> func_args = {level, filename, line_number,
format_str};
+ for (auto arg : format_args) {
+ func_args.push_back(arg);
+ }
Review comment:
This loop can be replaced by `func_args.insert(func_args.end(),
format_args.begin(), format_args.end());`.
##########
File path: src/target/llvm/codegen_hexagon.cc
##########
@@ -572,6 +574,43 @@ llvm::Value* CodeGenHexagon::CreateIntrinsic(const
CallNode* op) {
return CodeGenLLVM::CreateIntrinsic(op);
}
+void CodeGenHexagon::CreatePrintf(const std::string& format,
+ const std::vector<llvm::Value*> format_args)
{
+ // This function generates LLVM instructions to call HAP_debug_v2,
+ // as if the FARF macro in `HAP_farf.h` were called as
+ // FARF(ALWAYS, format, format_args[0], format_args[1], ...)
+ std::string func_name = "HAP_debug_v2";
+
+ llvm::Function* func = module_->getFunction(func_name);
+ if (func == nullptr) {
+ llvm::FunctionType* ftype = llvm::FunctionType::get(
+ t_void_, {t_int32_, t_char_->getPointerTo(), t_int32_,
t_char_->getPointerTo()}, true);
+ func = llvm::Function::Create(ftype, llvm::Function::ExternalLinkage,
func_name, module_.get());
+ }
+
+ llvm::Value* format_str = builder_->CreateGlobalStringPtr(format + "\0");
+ format_str->setName("printf_format_str");
+
+ // The value of FARF_ALWAYS_LEVEL, defined as HAP_LEVEL_HIGH
+ llvm::Value* level = ConstInt32(2);
+ level->setName("farf_always_level");
Review comment:
In LLVM IR, integer immediates are always printed inline, so this name
will never show anywhere (line 604 as well). There is no harm in having them
though...
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