[DAGCombiner] Add missing flag to addressing mode check
The checks in `canFoldInAddressingMode` tested for addressing modes that have a
base register but didn't set the `HasBaseReg` flag to true (it's false by
default). This patch fixes that. Although the omission of the flag was
technically incorrect it had no known observable impact, so no tests were
changed by this patch.
Differential Revision: https://reviews.llvm.org/D60314
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358502 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 9dc33aa..b03c65c 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -12897,6 +12897,7 @@
TargetLowering::AddrMode AM;
if (N->getOpcode() == ISD::ADD) {
+ AM.HasBaseReg = true;
ConstantSDNode *Offset = dyn_cast<ConstantSDNode>(N->getOperand(1));
if (Offset)
// [reg +/- imm]
@@ -12905,6 +12906,7 @@
// [reg +/- reg]
AM.Scale = 1;
} else if (N->getOpcode() == ISD::SUB) {
+ AM.HasBaseReg = true;
ConstantSDNode *Offset = dyn_cast<ConstantSDNode>(N->getOperand(1));
if (Offset)
// [reg +/- imm]
