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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-AU">Patch to add the missing type to the CppBackend.<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-AU">In LLVM 3.7.0, GetElementPtrInst::Create requires the type to be passed and the target CppBackend doesn't do so.<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-AU"><o:p> </o:p></span></p>
<pre style="background:white"><span style="color:black">The test case is rather easy, any array access will do it:<o:p></o:p></span></pre>
<pre style="background:white"><span style="color:black"><o:p> </o:p></span></pre>
<pre style="background:white"><span style="color:black">void test(char *str, int idx)<o:p></o:p></span></pre>
<pre style="background:white"><span style="color:black">{<o:p></o:p></span></pre>
<pre style="background:white"><span style="color:black"> str[idx]=idx;<o:p></o:p></span></pre>
<pre style="background:white"><span style="color:black">}<o:p></o:p></span></pre>
<pre style="background:white"><span style="color:black"><o:p> </o:p></span></pre>
<pre style="background:white"><span style="color:black">clang -emit-llvm -c test.c -o tmp.bc<o:p></o:p></span></pre>
<pre style="background:white"><span style="color:black">llc -march=cpp tmp.bc -o output.cpp<o:p></o:p></span></pre>
<pre style="background:white"><span style="color:black"><o:p> </o:p></span></pre>
<pre style="background:white"><span style="color:black">In the output.cpp, the GetElementPtrInst::Create() will be missing the Pointer type (1st param). The attached patch resolve the issue... or at least it attempts to do so.<o:p></o:p></span></pre>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-AU">Also in Bugzilla as bug 24689.<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-AU">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Courier New";color:black;mso-fareast-language:EN-AU">Jerome<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt"><o:p> </o:p></span></p>
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