Make conversions of i8/i16 to ppcf128 work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48493 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index a8217b9c83337591ccf8401fc7130d6ed791d2f9..56ac37590bc06e325d32181651e90f5cda636828 100644 (file)
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -6713,6 +6713,19 @@ void SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){
   case ISD::UINT_TO_FP: {
     bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP;
     MVT::ValueType SrcVT = Node->getOperand(0).getValueType();
+
+    // Promote the operand if needed.  Do this before checking for
+    // ppcf128 so conversions of i16 and i8 work.
+    if (getTypeAction(SrcVT) == Promote) {
+      SDOperand Tmp = PromoteOp(Node->getOperand(0));
+      Tmp = isSigned
+        ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp,
+                      DAG.getValueType(SrcVT))
+        : DAG.getZeroExtendInReg(Tmp, SrcVT);
+      Node = DAG.UpdateNodeOperands(Op, Tmp).Val;
+      SrcVT = Node->getOperand(0).getValueType();
+    }
+
     if (VT == MVT::ppcf128 && SrcVT == MVT::i32) {
       static const uint64_t zero = 0;
       if (isSigned) {
@@ -6757,16 +6770,6 @@ void SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){
       break;
     }
 
-    // Promote the operand if needed.
-    if (getTypeAction(SrcVT) == Promote) {
-      SDOperand Tmp = PromoteOp(Node->getOperand(0));
-      Tmp = isSigned
-        ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp,
-                      DAG.getValueType(SrcVT))
-        : DAG.getZeroExtendInReg(Tmp, SrcVT);
-      Node = DAG.UpdateNodeOperands(Op, Tmp).Val;
-    }
-
     Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT,
                        Node->getOperand(0));
     ExpandOp(Lo, Lo, Hi);

diff --git a/test/CodeGen/PowerPC/ppcf128-3.ll b/test/CodeGen/PowerPC/ppcf128-3.ll
new file mode 100644 (file)
index 0000000..3a51f4d
--- /dev/null
+++ b/test/CodeGen/PowerPC/ppcf128-3.ll
@@ -0,0 +1,32 @@
+; RUN: llvm-as < %s | llc -march=ppc32
+       %struct.stp_sequence = type { double, double }
+
+define i32 @stp_sequence_set_short_data(%struct.stp_sequence* %sequence, i32 %count, i16* %data) {
+entry:
+       %tmp1112 = sitofp i16 0 to ppc_fp128            ; <ppc_fp128> [#uses=1]
+       %tmp13 = call i32 (...)* @__inline_isfinite( ppc_fp128 %tmp1112 ) nounwind              ; <i32> [#uses=0]
+       ret i32 0
+}
+
+define i32 @stp_sequence_set_short_data2(%struct.stp_sequence* %sequence, i32 %count, i16* %data) {
+entry:
+       %tmp1112 = sitofp i8 0 to ppc_fp128             ; <ppc_fp128> [#uses=1]
+       %tmp13 = call i32 (...)* @__inline_isfinite( ppc_fp128 %tmp1112 ) nounwind              ; <i32> [#uses=0]
+       ret i32 0
+}
+
+define i32 @stp_sequence_set_short_data3(%struct.stp_sequence* %sequence, i32 %count, i16* %data) {
+entry:
+       %tmp1112 = uitofp i16 0 to ppc_fp128            ; <ppc_fp128> [#uses=1]
+       %tmp13 = call i32 (...)* @__inline_isfinite( ppc_fp128 %tmp1112 ) nounwind              ; <i32> [#uses=0]
+       ret i32 0
+}
+
+define i32 @stp_sequence_set_short_data4(%struct.stp_sequence* %sequence, i32 %count, i16* %data) {
+entry:
+       %tmp1112 = uitofp i8 0 to ppc_fp128             ; <ppc_fp128> [#uses=1]
+       %tmp13 = call i32 (...)* @__inline_isfinite( ppc_fp128 %tmp1112 ) nounwind              ; <i32> [#uses=0]
+       ret i32 0
+}
+
+declare i32 @__inline_isfinite(...)