<div dir="ltr">I forgot to mention, this was <a href="https://llvm.org/bugs/show_bug.cgi?id=25750">https://llvm.org/bugs/show_bug.cgi?id=25750</a> and Zalman Stern wrote the patch.</div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Dec 9, 2015 at 1:08 PM, Reid Kleckner via llvm-commits <span dir="ltr"><<a href="mailto:llvm-commits@lists.llvm.org" target="_blank">llvm-commits@lists.llvm.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Author: rnk<br>
Date: Wed Dec  9 15:08:18 2015<br>
New Revision: 255155<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=255155&view=rev" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project?rev=255155&view=rev</a><br>
Log:<br>
[Float2Int] Don't operate on vector instructions<br>
<br>
This fixes a crash bug. It's also not clear if we'd want to do this<br>
transform for vectors.<br>
<br>
Modified:<br>
    llvm/trunk/lib/Transforms/Scalar/Float2Int.cpp<br>
    llvm/trunk/test/Transforms/Float2Int/basic.ll<br>
<br>
Modified: llvm/trunk/lib/Transforms/Scalar/Float2Int.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/Float2Int.cpp?rev=255155&r1=255154&r2=255155&view=diff" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/Float2Int.cpp?rev=255155&r1=255154&r2=255155&view=diff</a><br>
==============================================================================<br>
--- llvm/trunk/lib/Transforms/Scalar/Float2Int.cpp (original)<br>
+++ llvm/trunk/lib/Transforms/Scalar/Float2Int.cpp Wed Dec  9 15:08:18 2015<br>
@@ -131,6 +131,8 @@ static Instruction::BinaryOps mapBinOpco<br>
 // integer domain.<br>
 void Float2Int::findRoots(Function &F, SmallPtrSet<Instruction*,8> &Roots) {<br>
   for (auto &I : instructions(F)) {<br>
+    if (isa<VectorType>(I.getType()))<br>
+      continue;<br>
     switch (I.getOpcode()) {<br>
     default: break;<br>
     case Instruction::FPToUI:<br>
<br>
Modified: llvm/trunk/test/Transforms/Float2Int/basic.ll<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/Float2Int/basic.ll?rev=255155&r1=255154&r2=255155&view=diff" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/Float2Int/basic.ll?rev=255155&r1=255154&r2=255155&view=diff</a><br>
==============================================================================<br>
--- llvm/trunk/test/Transforms/Float2Int/basic.ll (original)<br>
+++ llvm/trunk/test/Transforms/Float2Int/basic.ll Wed Dec  9 15:08:18 2015<br>
@@ -254,3 +254,13 @@ define i32 @neg_calluser(i32 %value) {<br>
   ret i32 %7<br>
 }<br>
 declare double @g(double)<br>
+<br>
+; CHECK-LABEL: @neg_vector<br>
+; CHECK:  %1 = uitofp <4 x i8> %a to <4 x float><br>
+; CHECK:  %2 = fptoui <4 x float> %1 to <4 x i16><br>
+; CHECK:  ret <4 x i16> %2<br>
+define <4 x i16> @neg_vector(<4 x i8> %a) {<br>
+  %1 = uitofp <4 x i8> %a to <4 x float><br>
+  %2 = fptoui <4 x float> %1 to <4 x i16><br>
+  ret <4 x i16> %2<br>
+}<br>
<br>
<br>
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</blockquote></div><br></div>