| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html> |
| <!-- Copyright (C) 1988-2015 Free Software Foundation, Inc. |
| |
| Permission is granted to copy, distribute and/or modify this document |
| under the terms of the GNU Free Documentation License, Version 1.3 or |
| any later version published by the Free Software Foundation; with the |
| Invariant Sections being "Funding Free Software", the Front-Cover |
| Texts being (a) (see below), and with the Back-Cover Texts being (b) |
| (see below). A copy of the license is included in the section entitled |
| "GNU Free Documentation License". |
| |
| (a) The FSF's Front-Cover Text is: |
| |
| A GNU Manual |
| |
| (b) The FSF's Back-Cover Text is: |
| |
| You have freedom to copy and modify this GNU Manual, like GNU |
| software. Copies published by the Free Software Foundation raise |
| funds for GNU development. --> |
| <!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ --> |
| <head> |
| <title>GNU Compiler Collection (GCC) Internals: GIMPLE_ASSIGN</title> |
| |
| <meta name="description" content="GNU Compiler Collection (GCC) Internals: GIMPLE_ASSIGN"> |
| <meta name="keywords" content="GNU Compiler Collection (GCC) Internals: GIMPLE_ASSIGN"> |
| <meta name="resource-type" content="document"> |
| <meta name="distribution" content="global"> |
| <meta name="Generator" content="makeinfo"> |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> |
| <link href="index.html#Top" rel="start" title="Top"> |
| <link href="Option-Index.html#Option-Index" rel="index" title="Option Index"> |
| <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> |
| <link href="Tuple-specific-accessors.html#Tuple-specific-accessors" rel="up" title="Tuple specific accessors"> |
| <link href="GIMPLE_005fBIND.html#GIMPLE_005fBIND" rel="next" title="GIMPLE_BIND"> |
| <link href="GIMPLE_005fASM.html#GIMPLE_005fASM" rel="prev" title="GIMPLE_ASM"> |
| <style type="text/css"> |
| <!-- |
| a.summary-letter {text-decoration: none} |
| blockquote.smallquotation {font-size: smaller} |
| div.display {margin-left: 3.2em} |
| div.example {margin-left: 3.2em} |
| div.indentedblock {margin-left: 3.2em} |
| div.lisp {margin-left: 3.2em} |
| div.smalldisplay {margin-left: 3.2em} |
| div.smallexample {margin-left: 3.2em} |
| div.smallindentedblock {margin-left: 3.2em; font-size: smaller} |
| div.smalllisp {margin-left: 3.2em} |
| kbd {font-style:oblique} |
| pre.display {font-family: inherit} |
| pre.format {font-family: inherit} |
| pre.menu-comment {font-family: serif} |
| pre.menu-preformatted {font-family: serif} |
| pre.smalldisplay {font-family: inherit; font-size: smaller} |
| pre.smallexample {font-size: smaller} |
| pre.smallformat {font-family: inherit; font-size: smaller} |
| pre.smalllisp {font-size: smaller} |
| span.nocodebreak {white-space:nowrap} |
| span.nolinebreak {white-space:nowrap} |
| span.roman {font-family:serif; font-weight:normal} |
| span.sansserif {font-family:sans-serif; font-weight:normal} |
| ul.no-bullet {list-style: none} |
| --> |
| </style> |
| |
| |
| </head> |
| |
| <body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> |
| <a name="GIMPLE_005fASSIGN"></a> |
| <div class="header"> |
| <p> |
| Next: <a href="GIMPLE_005fBIND.html#GIMPLE_005fBIND" accesskey="n" rel="next"><code>GIMPLE_BIND</code></a>, Previous: <a href="GIMPLE_005fASM.html#GIMPLE_005fASM" accesskey="p" rel="prev"><code>GIMPLE_ASM</code></a>, Up: <a href="Tuple-specific-accessors.html#Tuple-specific-accessors" accesskey="u" rel="up">Tuple specific accessors</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p> |
| </div> |
| <hr> |
| <a name="GIMPLE_005fASSIGN-1"></a> |
| <h4 class="subsection">11.8.2 <code>GIMPLE_ASSIGN</code></h4> |
| <a name="index-GIMPLE_005fASSIGN"></a> |
| |
| <dl> |
| <dt><a name="index-_002agimple_005fbuild_005fassign"></a>GIMPLE function: <em>gassign</em> <strong>*gimple_build_assign</strong> <em>(tree lhs, tree rhs)</em></dt> |
| <dd><p>Build a <code>GIMPLE_ASSIGN</code> statement. The left-hand side is an lvalue |
| passed in lhs. The right-hand side can be either a unary or |
| binary tree expression. The expression tree rhs will be |
| flattened and its operands assigned to the corresponding operand |
| slots in the new statement. This function is useful when you |
| already have a tree expression that you want to convert into a |
| tuple. However, try to avoid building expression trees for the |
| sole purpose of calling this function. If you already have the |
| operands in separate trees, it is better to use |
| <code>gimple_build_assign</code> with <code>enum tree_code</code> argument and separate |
| arguments for each operand. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-_002agimple_005fbuild_005fassign-1"></a>GIMPLE function: <em>gassign</em> <strong>*gimple_build_assign</strong> <em>(tree lhs, enum tree_code subcode, tree op1, tree op2, tree op3)</em></dt> |
| <dd><p>This function is similar to two operand <code>gimple_build_assign</code>, |
| but is used to build a <code>GIMPLE_ASSIGN</code> statement when the operands of the |
| right-hand side of the assignment are already split into |
| different operands. |
| </p> |
| <p>The left-hand side is an lvalue passed in lhs. Subcode is the |
| <code>tree_code</code> for the right-hand side of the assignment. Op1, op2 and op3 |
| are the operands. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-_002agimple_005fbuild_005fassign-2"></a>GIMPLE function: <em>gassign</em> <strong>*gimple_build_assign</strong> <em>(tree lhs, enum tree_code subcode, tree op1, tree op2)</em></dt> |
| <dd><p>Like the above 5 operand <code>gimple_build_assign</code>, but with the last |
| argument <code>NULL</code> - this overload should not be used for |
| <code>GIMPLE_TERNARY_RHS</code> assignments. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-_002agimple_005fbuild_005fassign-3"></a>GIMPLE function: <em>gassign</em> <strong>*gimple_build_assign</strong> <em>(tree lhs, enum tree_code subcode, tree op1)</em></dt> |
| <dd><p>Like the above 4 operand <code>gimple_build_assign</code>, but with the last |
| argument <code>NULL</code> - this overload should be used only for |
| <code>GIMPLE_UNARY_RHS</code> and <code>GIMPLE_SINGLE_RHS</code> assignments. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-gimplify_005fassign"></a>GIMPLE function: <em>gimple</em> <strong>gimplify_assign</strong> <em>(tree dst, tree src, gimple_seq *seq_p)</em></dt> |
| <dd><p>Build a new <code>GIMPLE_ASSIGN</code> tuple and append it to the end of |
| <code>*SEQ_P</code>. |
| </p></dd></dl> |
| |
| <p><code>DST</code>/<code>SRC</code> are the destination and source respectively. You can |
| pass ungimplified trees in <code>DST</code> or <code>SRC</code>, in which |
| case they will be converted to a gimple operand if necessary. |
| </p> |
| <p>This function returns the newly created <code>GIMPLE_ASSIGN</code> tuple. |
| </p> |
| <dl> |
| <dt><a name="index-gimple_005fassign_005frhs_005fcode"></a>GIMPLE function: <em>enum tree_code</em> <strong>gimple_assign_rhs_code</strong> <em>(gimple g)</em></dt> |
| <dd><p>Return the code of the expression computed on the <code>RHS</code> of |
| assignment statement <code>G</code>. |
| </p></dd></dl> |
| |
| |
| <dl> |
| <dt><a name="index-gimple_005fassign_005frhs_005fclass"></a>GIMPLE function: <em>enum gimple_rhs_class</em> <strong>gimple_assign_rhs_class</strong> <em>(gimple g)</em></dt> |
| <dd><p>Return the gimple rhs class of the code for the expression |
| computed on the rhs of assignment statement <code>G</code>. This will never |
| return <code>GIMPLE_INVALID_RHS</code>. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-gimple_005fassign_005flhs"></a>GIMPLE function: <em>tree</em> <strong>gimple_assign_lhs</strong> <em>(gimple g)</em></dt> |
| <dd><p>Return the <code>LHS</code> of assignment statement <code>G</code>. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-gimple_005fassign_005flhs_005fptr"></a>GIMPLE function: <em>tree *</em> <strong>gimple_assign_lhs_ptr</strong> <em>(gimple g)</em></dt> |
| <dd><p>Return a pointer to the <code>LHS</code> of assignment statement <code>G</code>. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-gimple_005fassign_005frhs1"></a>GIMPLE function: <em>tree</em> <strong>gimple_assign_rhs1</strong> <em>(gimple g)</em></dt> |
| <dd><p>Return the first operand on the <code>RHS</code> of assignment statement <code>G</code>. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-gimple_005fassign_005frhs1_005fptr"></a>GIMPLE function: <em>tree *</em> <strong>gimple_assign_rhs1_ptr</strong> <em>(gimple g)</em></dt> |
| <dd><p>Return the address of the first operand on the <code>RHS</code> of assignment |
| statement <code>G</code>. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-gimple_005fassign_005frhs2"></a>GIMPLE function: <em>tree</em> <strong>gimple_assign_rhs2</strong> <em>(gimple g)</em></dt> |
| <dd><p>Return the second operand on the <code>RHS</code> of assignment statement <code>G</code>. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-gimple_005fassign_005frhs2_005fptr"></a>GIMPLE function: <em>tree *</em> <strong>gimple_assign_rhs2_ptr</strong> <em>(gimple g)</em></dt> |
| <dd><p>Return the address of the second operand on the <code>RHS</code> of assignment |
| statement <code>G</code>. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-gimple_005fassign_005frhs3"></a>GIMPLE function: <em>tree</em> <strong>gimple_assign_rhs3</strong> <em>(gimple g)</em></dt> |
| <dd><p>Return the third operand on the <code>RHS</code> of assignment statement <code>G</code>. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-gimple_005fassign_005frhs3_005fptr"></a>GIMPLE function: <em>tree *</em> <strong>gimple_assign_rhs3_ptr</strong> <em>(gimple g)</em></dt> |
| <dd><p>Return the address of the third operand on the <code>RHS</code> of assignment |
| statement <code>G</code>. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-gimple_005fassign_005fset_005flhs"></a>GIMPLE function: <em>void</em> <strong>gimple_assign_set_lhs</strong> <em>(gimple g, tree lhs)</em></dt> |
| <dd><p>Set <code>LHS</code> to be the <code>LHS</code> operand of assignment statement <code>G</code>. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-gimple_005fassign_005fset_005frhs1"></a>GIMPLE function: <em>void</em> <strong>gimple_assign_set_rhs1</strong> <em>(gimple g, tree rhs)</em></dt> |
| <dd><p>Set <code>RHS</code> to be the first operand on the <code>RHS</code> of assignment |
| statement <code>G</code>. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-gimple_005fassign_005fset_005frhs2"></a>GIMPLE function: <em>void</em> <strong>gimple_assign_set_rhs2</strong> <em>(gimple g, tree rhs)</em></dt> |
| <dd><p>Set <code>RHS</code> to be the second operand on the <code>RHS</code> of assignment |
| statement <code>G</code>. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-gimple_005fassign_005fset_005frhs3"></a>GIMPLE function: <em>void</em> <strong>gimple_assign_set_rhs3</strong> <em>(gimple g, tree rhs)</em></dt> |
| <dd><p>Set <code>RHS</code> to be the third operand on the <code>RHS</code> of assignment |
| statement <code>G</code>. |
| </p></dd></dl> |
| |
| <dl> |
| <dt><a name="index-gimple_005fassign_005fcast_005fp-1"></a>GIMPLE function: <em>bool</em> <strong>gimple_assign_cast_p</strong> <em>(const_gimple s)</em></dt> |
| <dd><p>Return true if <code>S</code> is a type-cast assignment. |
| </p></dd></dl> |
| |
| |
| <hr> |
| <div class="header"> |
| <p> |
| Next: <a href="GIMPLE_005fBIND.html#GIMPLE_005fBIND" accesskey="n" rel="next"><code>GIMPLE_BIND</code></a>, Previous: <a href="GIMPLE_005fASM.html#GIMPLE_005fASM" accesskey="p" rel="prev"><code>GIMPLE_ASM</code></a>, Up: <a href="Tuple-specific-accessors.html#Tuple-specific-accessors" accesskey="u" rel="up">Tuple specific accessors</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p> |
| </div> |
| |
| |
| |
| </body> |
| </html> |