Do not introduce vector operations in functions marked with noimplicitfloat.
<rdar://problem/12879313>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170630 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 9e02c7b..c852c06 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -25,6 +25,7 @@
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/DataLayout.h"
#include "llvm/DerivedTypes.h"
+#include "llvm/Function.h"
#include "llvm/LLVMContext.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
@@ -7748,8 +7749,10 @@
LastLegalVectorType = i + 1;
}
- // We only use vectors if the constant is known to be zero.
- if (NonZero)
+ // We only use vectors if the constant is known to be zero and the
+ // function is not marked with the noimplicitfloat attribute.
+ if (NonZero || (DAG.getMachineFunction().getFunction()->getFnAttributes().
+ hasAttribute(Attribute::NoImplicitFloat)))
LastLegalVectorType = 0;
// Check if we found a legal integer type to store.