Remove .md files and add .rst files
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---
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layout: page
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title: JIT Tutorial 1
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---
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{% highlight python %}
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#!/usr/bin/env python
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from llvm.core import *
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# create a module
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module = Module.new ("tut1")
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# create a function type taking 3 32-bit integers, return a 32-bit integer
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ty_int = Type.int (32)
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func_type = Type.function (ty_int, (ty_int,)*3)
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# create a function of that type
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mul_add = Function.new (module, func_type, "mul_add")
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mul_add.calling_convention = CC_C
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x = mul_add.args[0]; x.name = "x"
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y = mul_add.args[1]; y.name = "y"
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z = mul_add.args[2]; z.name = "z"
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# implement the function
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# new block
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blk = mul_add.append_basic_block ("entry")
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# IR builder
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bldr = Builder.new (blk)
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tmp_1 = bldr.mul (x, y, "tmp_1")
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tmp_2 = bldr.add (tmp_1, z, "tmp_2")
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bldr.ret (tmp_2)
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print(module)
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{% endhighlight %}
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45
docs/source/doc/examples/JITTutorial1.rst
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45
docs/source/doc/examples/JITTutorial1.rst
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+-------------------------+
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| layout: page |
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+-------------------------+
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| title: JIT Tutorial 1 |
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+-------------------------+
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{% highlight python %} #!/usr/bin/env python
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from llvm.core import \*
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create a module
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===============
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module = Module.new ("tut1")
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create a function type taking 3 32-bit integers, return a 32-bit integer
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========================================================================
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ty\_int = Type.int (32) func\_type = Type.function (ty\_int,
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(ty\_int,)\*3)
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create a function of that type
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==============================
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mul\_add = Function.new (module, func\_type, "mul\_add")
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mul\_add.calling\_convention = CC\_C x = mul\_add.args[0]; x.name = "x"
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y = mul\_add.args[1]; y.name = "y" z = mul\_add.args[2]; z.name = "z"
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implement the function
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======================
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new block
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=========
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blk = mul\_add.append\_basic\_block ("entry")
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IR builder
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==========
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bldr = Builder.new (blk) tmp\_1 = bldr.mul (x, y, "tmp\_1") tmp\_2 =
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bldr.add (tmp\_1, z, "tmp\_2")
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bldr.ret (tmp\_2)
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print(module) {% endhighlight %}
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---
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layout: page
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title: JIT Tutorial 2
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---
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{% highlight python %}
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#!/usr/bin/env python
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from llvm.core import *
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# create a module
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module = Module.new ("tut2")
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# create a function type taking 2 integers, return a 32-bit integer
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ty_int = Type.int (32)
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func_type = Type.function (ty_int, (ty_int, ty_int))
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# create a function of that type
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gcd = Function.new (module, func_type, "gcd")
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# name function args
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x = gcd.args[0]; x.name = "x"
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y = gcd.args[1]; y.name = "y"
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# implement the function
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# blocks...
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entry = gcd.append_basic_block ("entry")
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ret = gcd.append_basic_block ("return")
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cond_false = gcd.append_basic_block ("cond_false")
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cond_true = gcd.append_basic_block ("cond_true")
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cond_false_2 = gcd.append_basic_block ("cond_false_2")
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# create a llvm::IRBuilder
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bldr = Builder.new (entry)
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x_eq_y = bldr.icmp (IPRED_EQ, x, y, "tmp")
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bldr.cbranch (x_eq_y, ret, cond_false)
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bldr.position_at_end (ret)
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bldr.ret(x)
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bldr.position_at_end (cond_false)
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x_lt_y = bldr.icmp (IPRED_ULT, x, y, "tmp")
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bldr.cbranch (x_lt_y, cond_true, cond_false_2)
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bldr.position_at_end (cond_true)
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y_sub_x = bldr.sub (y, x, "tmp")
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recur_1 = bldr.call (gcd, (x, y_sub_x,), "tmp")
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bldr.ret (recur_1)
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bldr.position_at_end (cond_false_2)
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x_sub_y = bldr.sub (x, y, "x_sub_y")
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recur_2 = bldr.call (gcd, (x_sub_y, y,), "tmp")
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bldr.ret (recur_2)
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print(module)
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{% endhighlight %}
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62
docs/source/doc/examples/JITTutorial2.rst
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62
docs/source/doc/examples/JITTutorial2.rst
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+-------------------------+
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| layout: page |
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+-------------------------+
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| title: JIT Tutorial 2 |
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+-------------------------+
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{% highlight python %} #!/usr/bin/env python
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from llvm.core import \*
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create a module
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===============
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module = Module.new ("tut2")
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create a function type taking 2 integers, return a 32-bit integer
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=================================================================
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ty\_int = Type.int (32) func\_type = Type.function (ty\_int, (ty\_int,
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ty\_int))
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create a function of that type
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==============================
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gcd = Function.new (module, func\_type, "gcd")
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name function args
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==================
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x = gcd.args[0]; x.name = "x" y = gcd.args[1]; y.name = "y"
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implement the function
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======================
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blocks...
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=========
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entry = gcd.append\_basic\_block ("entry") ret =
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gcd.append\_basic\_block ("return") cond\_false =
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gcd.append\_basic\_block ("cond\_false") cond\_true =
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gcd.append\_basic\_block ("cond\_true") cond\_false\_2 =
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gcd.append\_basic\_block ("cond\_false\_2")
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create a llvm::IRBuilder
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========================
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bldr = Builder.new (entry) x\_eq\_y = bldr.icmp (IPRED\_EQ, x, y, "tmp")
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bldr.cbranch (x\_eq\_y, ret, cond\_false)
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bldr.position\_at\_end (ret) bldr.ret(x)
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bldr.position\_at\_end (cond\_false) x\_lt\_y = bldr.icmp (IPRED\_ULT,
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x, y, "tmp") bldr.cbranch (x\_lt\_y, cond\_true, cond\_false\_2)
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bldr.position\_at\_end (cond\_true) y\_sub\_x = bldr.sub (y, x, "tmp")
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recur\_1 = bldr.call (gcd, (x, y\_sub\_x,), "tmp") bldr.ret (recur\_1)
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bldr.position\_at\_end (cond\_false\_2) x\_sub\_y = bldr.sub (x, y,
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"x\_sub\_y") recur\_2 = bldr.call (gcd, (x\_sub\_y, y,), "tmp") bldr.ret
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(recur\_2)
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print(module) {% endhighlight %}
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