[llvm-commits] [llvm] r68607 - in /llvm/trunk: lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp lib/CodeGen/SelectionDAG/LegalizeTypes.h test/CodeGen/ARM/2009-04-08-FloatUndef.ll

[Duncan Sands]

Author: baldrick
Date: Wed Apr  8 08:33:37 2009
New Revision: 68607

URL: http://llvm.org/viewvc/llvm-project?rev=68607&view=rev
Log:
Soft float support for undef.  Reported by Xerxes Rånby.

Added:
    llvm/trunk/test/CodeGen/ARM/2009-04-08-FloatUndef.ll
Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
    llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeTypes.h

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp?rev=68607&r1=68606&r2=68607&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp Wed Apr  8 08:33:37 2009
@@ -90,6 +90,7 @@
     case ISD::SELECT_CC:   R = SoftenFloatRes_SELECT_CC(N); break;
     case ISD::SINT_TO_FP:
     case ISD::UINT_TO_FP:  R = SoftenFloatRes_XINT_TO_FP(N); break;
+    case ISD::UNDEF:       R = SoftenFloatRes_UNDEF(N); break;
     case ISD::VAARG:       R = SoftenFloatRes_VAARG(N); break;
   }
 
@@ -464,6 +465,10 @@
                      N->getOperand(1), LHS, RHS, N->getOperand(4));
 }
 
+SDValue DAGTypeLegalizer::SoftenFloatRes_UNDEF(SDNode *N) {
+  return DAG.getUNDEF(TLI.getTypeToTransformTo(N->getValueType(0)));
+}
+
 SDValue DAGTypeLegalizer::SoftenFloatRes_VAARG(SDNode *N) {
   SDValue Chain = N->getOperand(0); // Get the chain.
   SDValue Ptr = N->getOperand(1); // Get the pointer.

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeTypes.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeTypes.h?rev=68607&r1=68606&r2=68607&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeTypes.h (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeTypes.h Wed Apr  8 08:33:37 2009
@@ -422,6 +422,7 @@
   SDValue SoftenFloatRes_LOAD(SDNode *N);
   SDValue SoftenFloatRes_SELECT(SDNode *N);
   SDValue SoftenFloatRes_SELECT_CC(SDNode *N);
+  SDValue SoftenFloatRes_UNDEF(SDNode *N);
   SDValue SoftenFloatRes_VAARG(SDNode *N);
   SDValue SoftenFloatRes_XINT_TO_FP(SDNode *N);
 

Added: llvm/trunk/test/CodeGen/ARM/2009-04-08-FloatUndef.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/2009-04-08-FloatUndef.ll?rev=68607&view=auto

==============================================================================
--- llvm/trunk/test/CodeGen/ARM/2009-04-08-FloatUndef.ll (added)
+++ llvm/trunk/test/CodeGen/ARM/2009-04-08-FloatUndef.ll Wed Apr  8 08:33:37 2009
@@ -0,0 +1,11 @@
+; RUN: llvm-as < %s | llc -march=arm
+
+define void @execute_shader(<4 x float>* %OUT, <4 x float>* %IN, <4 x float>* %CONST) {
+entry:
+	%input2 = load <4 x float>* null, align 16		; <<4 x float>> [#uses=2]
+	%shuffle7 = shufflevector <4 x float> %input2, <4 x float> <float 0.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00>, <4 x i32> <i32 2, i32 2, i32 2, i32 2>		; <<4 x float>> [#uses=1]
+	%mul1 = mul <4 x float> %shuffle7, zeroinitializer		; <<4 x float>> [#uses=1]
+	%add2 = add <4 x float> %mul1, %input2		; <<4 x float>> [#uses=1]
+	store <4 x float> %add2, <4 x float>* null, align 16
+	ret void
+}