commit 823a99cca826fbd20bc1031fb44ad3188ed46a06
author Simon Pilgrim <llvm-dev@redking.me.uk> Wed May 22 13:02:19 2019 +0000
committer Simon Pilgrim <llvm-dev@redking.me.uk> Wed May 22 13:02:19 2019 +0000
tree 57108b16fd5b319b5d1a1e523d93261b6a690dd7
parent 4c9e1d22620fa7e73420a80b0878479e73da12cb

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

Fixes scan-build division by zero warning.

llvm-svn: 361379

clang/lib/CodeGen/CGOpenMPRuntime.cpp

diff --git a/clang/lib/CodeGen/CGOpenMPRuntime.cpp b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
index 0897b47..651cca4 100644
--- a/clang/lib/CodeGen/CGOpenMPRuntime.cpp
+++ b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
@@ -9774,8 +9774,9 @@
       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;
       }