// If Offset is a multiply-by-constant and it's profitable to extract a shift
// and use it in a shifted operand do so.
- if (Offset.getOpcode() == ISD::MUL) {
+ if (Offset.getOpcode() == ISD::MUL && N.hasOneUse()) {
unsigned PowerOfTwo = 0;
SDValue NewMulConst;
if (canExtractShiftFromMul(Offset, 31, PowerOfTwo, NewMulConst)) {
// If OffReg is a multiply-by-constant and it's profitable to extract a shift
// and use it in a shifted operand do so.
- if (OffReg.getOpcode() == ISD::MUL) {
+ if (OffReg.getOpcode() == ISD::MUL && N.hasOneUse()) {
unsigned PowerOfTwo = 0;
SDValue NewMulConst;
if (canExtractShiftFromMul(OffReg, 3, PowerOfTwo, NewMulConst)) {
store i32 %add, i32* %addr
ret void
}
+
+define { i32, i32 } @test_multi_use_add(i32 %base, i32 %offset) {
+; CHECK-LABEL: test_multi_use_add:
+; CHECK-THUMB: movs [[CONST:r[0-9]+]], #28
+; CHECK-THUMB: movt [[CONST]], #1
+
+ %prod = mul i32 %offset, 65564
+ %sum = add i32 %base, %prod
+
+ %ptr = inttoptr i32 %sum to i32*
+ %loaded = load i32, i32* %ptr
+
+ %ret.tmp = insertvalue { i32, i32 } undef, i32 %sum, 0
+ %ret = insertvalue { i32, i32 } %ret.tmp, i32 %loaded, 1
+
+ ret { i32, i32 } %ret
+}