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-rw-r--r--lib/CodeGen/SelectionDAG/LegalizeDAG.cpp3
-rw-r--r--test/CodeGen/ARM/fpconv.ll4
2 files changed, 5 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 7812187fa4..5cb13e3f44 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -5369,7 +5369,8 @@ ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) {
MVT::ValueType SourceVT = Source.getValueType();
bool ExpandSource = getTypeAction(SourceVT) == Expand;
- if (!isSigned) {
+ // Special case for i32 source to take advantage of UINTTOFP_I32_F32, etc.
+ if (!isSigned && SourceVT != MVT::i32) {
// The integer value loaded will be incorrectly if the 'sign bit' of the
// incoming integer is set. To handle this, we dynamically test to see if
// it is set, and, if so, add a fudge factor.
diff --git a/test/CodeGen/ARM/fpconv.ll b/test/CodeGen/ARM/fpconv.ll
index a2771fea47..23850075d0 100644
--- a/test/CodeGen/ARM/fpconv.ll
+++ b/test/CodeGen/ARM/fpconv.ll
@@ -16,8 +16,10 @@
; RUN: grep fixunssfsi %t
; RUN: grep fixdfsi %t
; RUN: grep fixunsdfsi %t
-; RUN: grep floatdisf %t
+; RUN: grep floatsisf %t
; RUN: grep floatsidf %t
+; RUN: grep floatunsisf %t
+; RUN: grep floatunsidf %t
; RUN: llvm-as < %s | llc -march=thumb
define float @f1(double %x) {