return getTestBitOperand(Op->getOperand(0), Bit, Invert, DAG);
}
+ // (tbz (any_ext x), b) -> (tbz x, b) if we don't use the extended bits.
+ if (Op->getOpcode() == ISD::ANY_EXTEND &&
+ Bit < Op->getOperand(0).getValueSizeInBits()) {
+ return getTestBitOperand(Op->getOperand(0), Bit, Invert, DAG);
+ }
+
if (Op->getNumOperands() != 2)
return Op;
ret void
}
-define void @test20(i32 %in) {
-; CHECK-LABEL: @test20
+define void @test20(i32 %in) nounwind {
+; CHECK-LABEL: test20:
+; CHECK: // %bb.0:
+; CHECK-NEXT: tbnz w0, #2, .LBB19_2
+; CHECK-NEXT: // %bb.1: // %then
+; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT: bl t
+; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT: .LBB19_2: // %end
+; CHECK-NEXT: ret
%shl = shl i32 %in, 3
%zext = zext i32 %shl to i64
%and = and i64 %zext, 32
%cond = icmp eq i64 %and, 0
br i1 %cond, label %then, label %end
-; FIXME: Should be no lsl
-; CHECK: lsl w8, w0, #3
-; CHECK: tbnz w8, #5
then:
call void @t()