diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 4 | ||||
| -rw-r--r-- | test/CodeGen/ARM/constants.ll | 10 |
2 files changed, 12 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index d85d41bd86..b515fbaf60 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -2454,9 +2454,9 @@ SDValue SelectionDAG::getNode(unsigned Opcode, DebugLoc DL, } case ISD::BITCAST: if (VT == MVT::f32 && C->getValueType(0) == MVT::i32) - return getConstantFP(Val.bitsToFloat(), VT); + return getConstantFP(APFloat(Val), VT); else if (VT == MVT::f64 && C->getValueType(0) == MVT::i64) - return getConstantFP(Val.bitsToDouble(), VT); + return getConstantFP(APFloat(Val), VT); break; case ISD::BSWAP: return getConstant(Val.byteSwap(), VT); diff --git a/test/CodeGen/ARM/constants.ll b/test/CodeGen/ARM/constants.ll index 0ac8b48d39..3baa103e3d 100644 --- a/test/CodeGen/ARM/constants.ll +++ b/test/CodeGen/ARM/constants.ll @@ -45,6 +45,16 @@ r: ret void } +define i32 @f8() nounwind { +; Check that constant propagation through (i32)-1 => (float)Nan => (i32)-1 +; gives expected result +; CHECK: f8 +; CHECK: mvn r0, #0 + %tmp0 = bitcast i32 -1 to float + %tmp1 = bitcast float %tmp0 to i32 + ret i32 %tmp1 +} + %t1 = type { <3 x float>, <3 x float> } @const1 = global %t1 { <3 x float> zeroinitializer, |