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Update the OCaml Kaleidoscope tutorial.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97965 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Erick Tryzelaar 2010-03-08 19:32:18 +00:00
parent 0ef3fa6aab
commit 9ef76b9985
5 changed files with 58 additions and 65 deletions
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6
docs/tutorial/OCamlLangImpl3.html
View File

@ -98,6 +98,7 @@ exception Error of string
let the_module = create_module (global_context ()) "my cool jit"
let builder = builder (global_context ())
let named_values:(string, llvalue) Hashtbl.t = Hashtbl.create 10
let double_type = double_type context
</pre>
</div>
@ -389,7 +390,7 @@ that there is an LLVM Function object that is ready to go for us.</p>
<div class="doc_code">
<pre>
(* Create a new basic block to start insertion into. *)
let bb = append_block "entry" the_function in
let bb = append_block context "entry" the_function in
position_at_end bb builder;
try
@ -903,6 +904,7 @@ let context = global_context ()
let the_module = create_module context "my cool jit"
let builder = builder context
let named_values:(string, llvalue) Hashtbl.t = Hashtbl.create 10
let double_type = double_type context
let rec codegen_expr = function
| Ast.Number n -&gt; const_float double_type n
@ -974,7 +976,7 @@ let codegen_func = function
let the_function = codegen_proto proto in
(* Create a new basic block to start insertion into. *)
let bb = append_block "entry" the_function in
let bb = append_block context "entry" the_function in
position_at_end bb builder;
try

37
docs/tutorial/OCamlLangImpl4.html
View File

@ -186,9 +186,8 @@ add a set of optimizations to run. The code looks like this:</p>
<div class="doc_code">
<pre>
(* Create the JIT. *)
let the_module_provider = ModuleProvider.create Codegen.the_module in
let the_execution_engine = ExecutionEngine.create the_module_provider in
let the_fpm = PassManager.create_function the_module_provider in
let the_execution_engine = ExecutionEngine.create Codegen.the_module in
let the_fpm = PassManager.create_function Codegen.the_module in
(* Set up the optimizer pipeline. Start with registering info about how the
* target lays out data structures. *)
@ -213,18 +212,11 @@ add a set of optimizations to run. The code looks like this:</p>
</pre>
</div>
<p>This code defines two values, an <tt>Llvm.llmoduleprovider</tt> and a
<tt>Llvm.PassManager.t</tt>. The former is basically a wrapper around our
<tt>Llvm.llmodule</tt> that the <tt>Llvm.PassManager.t</tt> requires. It
provides certain flexibility that we're not going to take advantage of here,
so I won't dive into any details about it.</p>
<p>The meat of the matter here, is the definition of "<tt>the_fpm</tt>". It
requires a pointer to the <tt>the_module</tt> (through the
<tt>the_module_provider</tt>) to construct itself. Once it is set up, we use a
series of "add" calls to add a bunch of LLVM passes. The first pass is
basically boilerplate, it adds a pass so that later optimizations know how the
data structures in the program are laid out. The
requires a pointer to the <tt>the_module</tt> to construct itself. Once it is
set up, we use a series of "add" calls to add a bunch of LLVM passes. The
first pass is basically boilerplate, it adds a pass so that later optimizations
know how the data structures in the program are laid out. The
"<tt>the_execution_engine</tt>" variable is related to the JIT, which we will
get to in the next section.</p>
@ -320,8 +312,7 @@ by adding a global variable and a call in <tt>main</tt>:</p>
let main () =
...
<b>(* Create the JIT. *)
let the_module_provider = ModuleProvider.create Codegen.the_module in
let the_execution_engine = ExecutionEngine.create the_module_provider in</b>
let the_execution_engine = ExecutionEngine.create Codegen.the_module in</b>
...
</pre>
</div>
@ -351,7 +342,7 @@ can change the code that parses a top-level expression to look like this:</p>
the_execution_engine in
print_string "Evaluated to ";
print_float (GenericValue.as_float double_type result);
print_float (GenericValue.as_float Codegen.double_type result);
print_newline ();
</pre>
</div>
@ -796,6 +787,7 @@ let context = global_context ()
let the_module = create_module context "my cool jit"
let builder = builder context
let named_values:(string, llvalue) Hashtbl.t = Hashtbl.create 10
let double_type = double_type context
let rec codegen_expr = function
| Ast.Number n -&gt; const_float double_type n
@ -867,7 +859,7 @@ let codegen_func the_fpm = function
let the_function = codegen_proto proto in
(* Create a new basic block to start insertion into. *)
let bb = append_block "entry" the_function in
let bb = append_block context "entry" the_function in
position_at_end bb builder;
try
@ -932,7 +924,7 @@ let rec main_loop the_fpm the_execution_engine stream =
the_execution_engine in
print_string "Evaluated to ";
print_float (GenericValue.as_float double_type result);
print_float (GenericValue.as_float Codegen.double_type result);
print_newline ();
with Stream.Error s | Codegen.Error s -&gt;
(* Skip token for error recovery. *)
@ -971,16 +963,15 @@ let main () =
let stream = Lexer.lex (Stream.of_channel stdin) in
(* Create the JIT. *)
let the_module_provider = ModuleProvider.create Codegen.the_module in
let the_execution_engine = ExecutionEngine.create the_module_provider in
let the_fpm = PassManager.create_function the_module_provider in
let the_execution_engine = ExecutionEngine.create Codegen.the_module in
let the_fpm = PassManager.create_function Codegen.the_module in
(* Set up the optimizer pipeline. Start with registering info about how the
* target lays out data structures. *)
TargetData.add (ExecutionEngine.target_data the_execution_engine) the_fpm;
(* Do simple "peephole" optimizations and bit-twiddling optzn. *)
add_instruction_combining the_fpm;
add_instruction_combination the_fpm;
(* reassociate expressions. *)
add_reassociation the_fpm;

32
docs/tutorial/OCamlLangImpl5.html
View File

@ -364,7 +364,7 @@ value as a 1-bit (bool) value.</p>
let start_bb = insertion_block builder in
let the_function = block_parent start_bb in
let then_bb = append_block "then" the_function in
let then_bb = append_block context "then" the_function in
position_at_end then_bb builder;
</pre>
</div>
@ -417,7 +417,7 @@ up-to-date value for code that will set up the Phi node.</p>
<div class="doc_code">
<pre>
(* Emit 'else' value. *)
let else_bb = append_block "else" the_function in
let else_bb = append_block context "else" the_function in
position_at_end else_bb builder;
let else_val = codegen_expr else_ in
@ -433,7 +433,7 @@ the 'then' block.</p>
<div class="doc_code">
<pre>
(* Emit merge block. *)
let merge_bb = append_block "ifcont" the_function in
let merge_bb = append_block context "ifcont" the_function in
position_at_end merge_bb builder;
let incoming = [(then_val, new_then_bb); (else_val, new_else_bb)] in
let phi = build_phi incoming "iftmp" builder in
@ -704,7 +704,7 @@ block, but remember that the body code itself could consist of multiple blocks
* block. *)
let preheader_bb = insertion_block builder in
let the_function = block_parent preheader_bb in
let loop_bb = append_block "loop" the_function in
let loop_bb = append_block context "loop" the_function in
(* Insert an explicit fall through from the current block to the
* loop_bb. *)
@ -804,7 +804,7 @@ statement.</p>
<pre>
(* Create the "after loop" block and insert it. *)
let loop_end_bb = insertion_block builder in
let after_bb = append_block "afterloop" the_function in
let after_bb = append_block context "afterloop" the_function in
(* Insert the conditional branch into the end of loop_end_bb. *)
ignore (build_cond_br end_cond loop_bb after_bb builder);
@ -1204,6 +1204,7 @@ let context = global_context ()
let the_module = create_module context "my cool jit"
let builder = builder context
let named_values:(string, llvalue) Hashtbl.t = Hashtbl.create 10
let double_type = double_type context
let rec codegen_expr = function
| Ast.Number n -&gt; const_float double_type n
@ -1250,7 +1251,7 @@ let rec codegen_expr = function
let start_bb = insertion_block builder in
let the_function = block_parent start_bb in
let then_bb = append_block "then" the_function in
let then_bb = append_block context "then" the_function in
(* Emit 'then' value. *)
position_at_end then_bb builder;
@ -1262,7 +1263,7 @@ let rec codegen_expr = function
let new_then_bb = insertion_block builder in
(* Emit 'else' value. *)
let else_bb = append_block "else" the_function in
let else_bb = append_block context "else" the_function in
position_at_end else_bb builder;
let else_val = codegen_expr else_ in
@ -1271,7 +1272,7 @@ let rec codegen_expr = function
let new_else_bb = insertion_block builder in
(* Emit merge block. *)
let merge_bb = append_block "ifcont" the_function in
let merge_bb = append_block context "ifcont" the_function in
position_at_end merge_bb builder;
let incoming = [(then_val, new_then_bb); (else_val, new_else_bb)] in
let phi = build_phi incoming "iftmp" builder in
@ -1297,7 +1298,7 @@ let rec codegen_expr = function
* block. *)
let preheader_bb = insertion_block builder in
let the_function = block_parent preheader_bb in
let loop_bb = append_block "loop" the_function in
let loop_bb = append_block context "loop" the_function in
(* Insert an explicit fall through from the current block to the
* loop_bb. *)
@ -1341,7 +1342,7 @@ let rec codegen_expr = function
(* Create the "after loop" block and insert it. *)
let loop_end_bb = insertion_block builder in
let after_bb = append_block "afterloop" the_function in
let after_bb = append_block context "afterloop" the_function in
(* Insert the conditional branch into the end of loop_end_bb. *)
ignore (build_cond_br end_cond loop_bb after_bb builder);
@ -1397,7 +1398,7 @@ let codegen_func the_fpm = function
let the_function = codegen_proto proto in
(* Create a new basic block to start insertion into. *)
let bb = append_block "entry" the_function in
let bb = append_block context "entry" the_function in
position_at_end bb builder;
try
@ -1462,7 +1463,7 @@ let rec main_loop the_fpm the_execution_engine stream =
the_execution_engine in
print_string "Evaluated to ";
print_float (GenericValue.as_float double_type result);
print_float (GenericValue.as_float Codegen.double_type result);
print_newline ();
with Stream.Error s | Codegen.Error s -&gt;
(* Skip token for error recovery. *)
@ -1501,16 +1502,15 @@ let main () =
let stream = Lexer.lex (Stream.of_channel stdin) in
(* Create the JIT. *)
let the_module_provider = ModuleProvider.create Codegen.the_module in
let the_execution_engine = ExecutionEngine.create the_module_provider in
let the_fpm = PassManager.create_function the_module_provider in
let the_execution_engine = ExecutionEngine.create Codegen.the_module in
let the_fpm = PassManager.create_function Codegen.the_module in
(* Set up the optimizer pipeline. Start with registering info about how the
* target lays out data structures. *)
TargetData.add (ExecutionEngine.target_data the_execution_engine) the_fpm;
(* Do simple "peephole" optimizations and bit-twiddling optzn. *)
add_instruction_combining the_fpm;
add_instruction_combination the_fpm;
(* reassociate expressions. *)
add_reassociation the_fpm;

24
docs/tutorial/OCamlLangImpl6.html
View File

@ -300,7 +300,7 @@ let codegen_func the_fpm = function
end;</b>
(* Create a new basic block to start insertion into. *)
let bb = append_block "entry" the_function in
let bb = append_block context "entry" the_function in
position_at_end bb builder;
...
</pre>
@ -1177,6 +1177,7 @@ let context = global_context ()
let the_module = create_module context "my cool jit"
let builder = builder context
let named_values:(string, llvalue) Hashtbl.t = Hashtbl.create 10
let double_type = double_type context
let rec codegen_expr = function
| Ast.Number n -&gt; const_float double_type n
@ -1241,7 +1242,7 @@ let rec codegen_expr = function
let start_bb = insertion_block builder in
let the_function = block_parent start_bb in
let then_bb = append_block "then" the_function in
let then_bb = append_block context "then" the_function in
(* Emit 'then' value. *)
position_at_end then_bb builder;
@ -1253,7 +1254,7 @@ let rec codegen_expr = function
let new_then_bb = insertion_block builder in
(* Emit 'else' value. *)
let else_bb = append_block "else" the_function in
let else_bb = append_block context "else" the_function in
position_at_end else_bb builder;
let else_val = codegen_expr else_ in
@ -1262,7 +1263,7 @@ let rec codegen_expr = function
let new_else_bb = insertion_block builder in
(* Emit merge block. *)
let merge_bb = append_block "ifcont" the_function in
let merge_bb = append_block context "ifcont" the_function in
position_at_end merge_bb builder;
let incoming = [(then_val, new_then_bb); (else_val, new_else_bb)] in
let phi = build_phi incoming "iftmp" builder in
@ -1288,7 +1289,7 @@ let rec codegen_expr = function
* block. *)
let preheader_bb = insertion_block builder in
let the_function = block_parent preheader_bb in
let loop_bb = append_block "loop" the_function in
let loop_bb = append_block context "loop" the_function in
(* Insert an explicit fall through from the current block to the
* loop_bb. *)
@ -1332,7 +1333,7 @@ let rec codegen_expr = function
(* Create the "after loop" block and insert it. *)
let loop_end_bb = insertion_block builder in
let after_bb = append_block "afterloop" the_function in
let after_bb = append_block context "afterloop" the_function in
(* Insert the conditional branch into the end of loop_end_bb. *)
ignore (build_cond_br end_cond loop_bb after_bb builder);
@ -1396,7 +1397,7 @@ let codegen_func the_fpm = function
end;
(* Create a new basic block to start insertion into. *)
let bb = append_block "entry" the_function in
let bb = append_block context "entry" the_function in
position_at_end bb builder;
try
@ -1461,7 +1462,7 @@ let rec main_loop the_fpm the_execution_engine stream =
the_execution_engine in
print_string "Evaluated to ";
print_float (GenericValue.as_float double_type result);
print_float (GenericValue.as_float Codegen.double_type result);
print_newline ();
with Stream.Error s | Codegen.Error s -&gt;
(* Skip token for error recovery. *)
@ -1500,16 +1501,15 @@ let main () =
let stream = Lexer.lex (Stream.of_channel stdin) in
(* Create the JIT. *)
let the_module_provider = ModuleProvider.create Codegen.the_module in
let the_execution_engine = ExecutionEngine.create the_module_provider in
let the_fpm = PassManager.create_function the_module_provider in
let the_execution_engine = ExecutionEngine.create Codegen.the_module in
let the_fpm = PassManager.create_function Codegen.the_module in
(* Set up the optimizer pipeline. Start with registering info about how the
* target lays out data structures. *)
TargetData.add (ExecutionEngine.target_data the_execution_engine) the_fpm;
(* Do simple "peephole" optimizations and bit-twiddling optzn. *)
add_instruction_combining the_fpm;
add_instruction_combination the_fpm;
(* reassociate expressions. *)
add_reassociation the_fpm;

24
docs/tutorial/OCamlLangImpl7.html
View File

@ -543,7 +543,7 @@ good codegen once again:</p>
<pre>
let main () =
...
let the_fpm = PassManager.create_function the_module_provider in
let the_fpm = PassManager.create_function Codegen.the_module in
(* Set up the optimizer pipeline. Start with registering info about how the
* target lays out data structures. *)
@ -1388,6 +1388,7 @@ let context = global_context ()
let the_module = create_module context "my cool jit"
let builder = builder context
let named_values:(string, llvalue) Hashtbl.t = Hashtbl.create 10
let double_type = double_type context
(* Create an alloca instruction in the entry block of the function. This
* is used for mutable variables etc. *)
@ -1482,7 +1483,7 @@ let rec codegen_expr = function
let start_bb = insertion_block builder in
let the_function = block_parent start_bb in
let then_bb = append_block "then" the_function in
let then_bb = append_block context "then" the_function in
(* Emit 'then' value. *)
position_at_end then_bb builder;
@ -1494,7 +1495,7 @@ let rec codegen_expr = function
let new_then_bb = insertion_block builder in
(* Emit 'else' value. *)
let else_bb = append_block "else" the_function in
let else_bb = append_block context "else" the_function in
position_at_end else_bb builder;
let else_val = codegen_expr else_ in
@ -1503,7 +1504,7 @@ let rec codegen_expr = function
let new_else_bb = insertion_block builder in
(* Emit merge block. *)
let merge_bb = append_block "ifcont" the_function in
let merge_bb = append_block context "ifcont" the_function in
position_at_end merge_bb builder;
let incoming = [(then_val, new_then_bb); (else_val, new_else_bb)] in
let phi = build_phi incoming "iftmp" builder in
@ -1555,7 +1556,7 @@ let rec codegen_expr = function
(* Make the new basic block for the loop header, inserting after current
* block. *)
let loop_bb = append_block "loop" the_function in
let loop_bb = append_block context "loop" the_function in
(* Insert an explicit fall through from the current block to the
* loop_bb. *)
@ -1599,7 +1600,7 @@ let rec codegen_expr = function
let end_cond = build_fcmp Fcmp.One end_cond zero "loopcond" builder in
(* Create the "after loop" block and insert it. *)
let after_bb = append_block "afterloop" the_function in
let after_bb = append_block context "afterloop" the_function in
(* Insert the conditional branch into the end of loop_end_bb. *)
ignore (build_cond_br end_cond loop_bb after_bb builder);
@ -1723,7 +1724,7 @@ let codegen_func the_fpm = function
end;
(* Create a new basic block to start insertion into. *)
let bb = append_block "entry" the_function in
let bb = append_block context "entry" the_function in
position_at_end bb builder;
try
@ -1791,7 +1792,7 @@ let rec main_loop the_fpm the_execution_engine stream =
the_execution_engine in
print_string "Evaluated to ";
print_float (GenericValue.as_float double_type result);
print_float (GenericValue.as_float Codegen.double_type result);
print_newline ();
with Stream.Error s | Codegen.Error s -&gt;
(* Skip token for error recovery. *)
@ -1831,9 +1832,8 @@ let main () =
let stream = Lexer.lex (Stream.of_channel stdin) in
(* Create the JIT. *)
let the_module_provider = ModuleProvider.create Codegen.the_module in
let the_execution_engine = ExecutionEngine.create the_module_provider in
let the_fpm = PassManager.create_function the_module_provider in
let the_execution_engine = ExecutionEngine.create Codegen.the_module in
let the_fpm = PassManager.create_function Codegen.the_module in
(* Set up the optimizer pipeline. Start with registering info about how the
* target lays out data structures. *)
@ -1843,7 +1843,7 @@ let main () =
add_memory_to_register_promotion the_fpm;
(* Do simple "peephole" optimizations and bit-twiddling optzn. *)
add_instruction_combining the_fpm;
add_instruction_combination the_fpm;
(* reassociate expressions. *)
add_reassociation the_fpm;