Offset = DAG.getNode(
ISD::MUL, DL, PtrType, Offset,
DAG.getConstant(VecEltVT.getStoreSize(), DL, PtrType));
- MPI = OriginalLoad->getPointerInfo();
+ // Discard the pointer info except the address space because the memory
+ // operand can't represent this new access since the offset is variable.
+ MPI = MachinePointerInfo(OriginalLoad->getPointerInfo().getAddrSpace());
}
NewPtr = DAG.getNode(ISD::ADD, DL, PtrType, NewPtr, Offset);
--- /dev/null
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+;RUN: llc < %s -mtriple=i686 -mattr=sse4.1 -stop-after=expand-isel-pseudos 2>&1 | FileCheck %s
+
+; This test makes sure we discard pointer info when we combine a vector load
+; and a variable extractelement into a scalar load using an index. There's also
+; a test to ensure we don't discard it for the constant index case.
+
+; CHECK: name: const_index
+; CHECK: bb.0 (%ir-block.0):
+; CHECK: [[POINTER:%[0-9]+]]:gr32 = MOV32rm %fixed-stack.0, 1, $noreg, 0, $noreg :: (load 4 from %fixed-stack.0)
+; CHECK: [[LOAD:%[0-9]+]]:gr32 = MOV32rm killed [[POINTER]], 1, $noreg, 4, $noreg :: (load 4 from %ir.v + 4)
+; CHECK: $eax = COPY [[LOAD]]
+; CHECK: RET 0, $eax
+define i32 @const_index(<8 x i32>* %v) {
+ %a = load <8 x i32>, <8 x i32>* %v
+ %b = extractelement <8 x i32> %a, i32 1
+ ret i32 %b
+}
+
+; CHECK: name: variable_index
+; CHECK: bb.0 (%ir-block.0):
+; CHECK: [[INDEX:%[0-9]+]]:gr32_nosp = MOV32rm %fixed-stack.0, 1, $noreg, 0, $noreg :: (load 4 from %fixed-stack.0)
+; CHECK: [[POINTER:%[0-9]+]]:gr32 = MOV32rm %fixed-stack.1, 1, $noreg, 0, $noreg :: (load 4 from %fixed-stack.1)
+; CHECK: [[LOAD:%[0-9]+]]:gr32 = MOV32rm killed [[POINTER]], 4, killed [[INDEX]], 0, $noreg :: (load 4)
+; CHECK: $eax = COPY [[LOAD]]
+; CHECK: RET 0, $eax
+define i32 @variable_index(<8 x i32>* %v, i32 %i) {
+ %a = load <8 x i32>, <8 x i32>* %v
+ %b = extractelement <8 x i32> %a, i32 %i
+ ret i32 %b
+}
+
+; CHECK: name: variable_index_with_addrspace
+; CHECK: bb.0 (%ir-block.0):
+; CHECK: [[INDEX:%[0-9]+]]:gr32_nosp = MOV32rm %fixed-stack.0, 1, $noreg, 0, $noreg :: (load 4 from %fixed-stack.0)
+; CHECK: [[POINTER:%[0-9]+]]:gr32 = MOV32rm %fixed-stack.1, 1, $noreg, 0, $noreg :: (load 4 from %fixed-stack.1)
+; CHECK: [[LOAD:%[0-9]+]]:gr32 = MOV32rm killed [[POINTER]], 4, killed [[INDEX]], 0, $noreg :: (load 4, addrspace 1)
+; CHECK: $eax = COPY [[LOAD]]
+; CHECK: RET 0, $eax
+define i32 @variable_index_with_addrspace(<8 x i32> addrspace(1)* %v, i32 %i) {
+ %a = load <8 x i32>, <8 x i32> addrspace(1)* %v
+ %b = extractelement <8 x i32> %a, i32 %i
+ ret i32 %b
+}