r361379 - [CGOpenMPRuntime] emitX86DeclareSimdFunction - assert simdlen/cdtsize is not zero. NFCI.

[Simon Pilgrim via cfe-commits]

Author: rksimon
Date: Wed May 22 06:02:19 2019
New Revision: 361379

URL: http://llvm.org/viewvc/llvm-project?rev=361379&view=rev
Log:
[CGOpenMPRuntime] emitX86DeclareSimdFunction - assert simdlen/cdtsize is not zero. NFCI.

Fixes scan-build division by zero warning.

Modified:
    cfe/trunk/lib/CodeGen/CGOpenMPRuntime.cpp

Modified: cfe/trunk/lib/CodeGen/CGOpenMPRuntime.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGOpenMPRuntime.cpp?rev=361379&r1=361378&r2=361379&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGOpenMPRuntime.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGOpenMPRuntime.cpp Wed May 22 06:02:19 2019
@@ -9774,8 +9774,9 @@ emitX86DeclareSimdFunction(const Functio
       llvm::raw_svector_ostream Out(Buffer);
       Out << "_ZGV" << Data.ISA << Mask;
       if (!VLENVal) {
-        Out << llvm::APSInt::getUnsigned(Data.VecRegSize /
-                                         evaluateCDTSize(FD, ParamAttrs));
+        unsigned NumElts = evaluateCDTSize(FD, ParamAttrs);
+        assert(NumElts && "Non-zero simdlen/cdtsize expected");
+        Out << llvm::APSInt::getUnsigned(Data.VecRegSize / NumElts);
       } else {
         Out << VLENVal;
       }