[Mesa-dev] [PATCH 2/5] LegalizeDAG: Allow promotion of scalar loads

Tom Stellard tom at stellard.net
Fri Dec 7 14:25:13 PST 2012


From: Tom Stellard <thomas.stellard at amd.com>

---
 lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 9946694..2596f00 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -890,10 +890,9 @@ void SelectionDAGLegalize::LegalizeLoadOps(SDNode *Node) {
       break;
     }
     case TargetLowering::Promote: {
-      // Only promote a load of vector type to another.
-      assert(VT.isVector() && "Cannot promote this load!");
-      // Change base type to a different vector type.
       EVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT);
+      assert(NVT.getSizeInBits() == VT.getSizeInBits() &&
+             "Can only promote loads to same size type");
 
       SDValue Res = DAG.getLoad(NVT, dl, Chain, Ptr, LD->getPointerInfo(),
                          LD->isVolatile(), LD->isNonTemporal(),
-- 
1.7.11.4



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