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Switch getelementptr inbounds and sdiv exact from undef to trap.

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llvm-svn: 102175
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Dan Gohman 2010-04-23 15:23:32 +00:00
parent a50d7d5434
commit cc14435fdf
1 changed files with 10 additions and 9 deletions
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@ -3407,8 +3407,8 @@ Instruction</a> </div>
a 32-bit division of -2147483648 by -1.</p> a 32-bit division of -2147483648 by -1.</p>
<p>If the <tt>exact</tt> keyword is present, the result value of the <p>If the <tt>exact</tt> keyword is present, the result value of the
<tt>sdiv</tt> is undefined if the result would be rounded or if overflow <tt>sdiv</tt> is a <a href="#trapvalues">trap value</a> if the result would
would occur.</p> be rounded or if overflow would occur.</p>
<h5>Example:</h5> <h5>Example:</h5>
<pre> <pre>
@ -4391,13 +4391,14 @@ entry:
</pre> </pre>
<p>If the <tt>inbounds</tt> keyword is present, the result value of the <p>If the <tt>inbounds</tt> keyword is present, the result value of the
<tt>getelementptr</tt> is undefined if the base pointer is not an <tt>getelementptr</tt> is a <a href="#trapvalues">trap value</a> if the
<i>in bounds</i> address of an allocated object, or if any of the addresses base pointer is not an <i>in bounds</i> address of an allocated object,
that would be formed by successive addition of the offsets implied by the or if any of the addresses that would be formed by successive addition of
indices to the base address with infinitely precise arithmetic are not an the offsets implied by the indices to the base address with infinitely
<i>in bounds</i> address of that allocated object. precise arithmetic are not an <i>in bounds</i> address of that allocated
The <i>in bounds</i> addresses for an allocated object are all the addresses object. The <i>in bounds</i> addresses for an allocated object are all
that point into the object, plus the address one byte past the end.</p> the addresses that point into the object, plus the address one byte past
the end.</p>
<p>If the <tt>inbounds</tt> keyword is not present, the offsets are added to <p>If the <tt>inbounds</tt> keyword is not present, the offsets are added to
the base address with silently-wrapping two's complement arithmetic, and the base address with silently-wrapping two's complement arithmetic, and