use comma operator for float <-> int bitcasts, to ensure they are not treated as separate instructions by the js optimizer later

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/Target/CppBackend/CPPBackend.cpp b/lib/Target/CppBackend/CPPBackend.cpp
index d97f034f4e..cd316762a4 100644
--- a/lib/Target/CppBackend/CPPBackend.cpp
+++ b/lib/Target/CppBackend/CPPBackend.cpp
@@ -1044,10 +1044,10 @@ std::string JSWriter::generateInstruction(const Instruction *I) {
     std::string V = getValueAsStr(I->getOperand(0));
     if (InType->isIntegerTy() && OutType->isFloatingPointTy()) {
       assert(InType->getIntegerBitWidth() == 32);
-      text = "HEAP32[tempDoublePtr>>2]=" + V + ";" + text + "+HEAPF32[tempDoublePtr>>2];";
+      text += "(HEAP32[tempDoublePtr>>2]=" + V + "," + "+HEAPF32[tempDoublePtr>>2]);";
     } else if (OutType->isIntegerTy() && InType->isFloatingPointTy()) {
       assert(OutType->getIntegerBitWidth() == 32);
-      text = "HEAPF32[tempDoublePtr>>2]=" + V + ";" + text + "HEAP32[tempDoublePtr>>2]|0;";
+      text += "(HEAPF32[tempDoublePtr>>2]=" + V + "," + "HEAP32[tempDoublePtr>>2]|0);";
     } else {
       text += V + ";";
     }