1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -march=x86-64 -enable-lsr-nested | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker; 3*9880d681SAndroid Build Coastguard Worker; Nested LSR is required to optimize this case. 4*9880d681SAndroid Build Coastguard Worker; We do not expect to see this form of IR without -enable-iv-rewrite. 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Worker; xfailed for now because the scheduler two-address hack has been disabled. 7*9880d681SAndroid Build Coastguard Worker; Now it's generating a leal -1 rather than a decq. 8*9880d681SAndroid Build Coastguard Worker; XFAIL: * 9*9880d681SAndroid Build Coastguard Worker 10*9880d681SAndroid Build Coastguard Workerdefine void @borf(i8* nocapture %in, i8* nocapture %out) nounwind { 11*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: borf: 12*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: inc 13*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: leal 1( 14*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: leal -1( 15*9880d681SAndroid Build Coastguard Worker; CHECK: decq 16*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: cmpq $-478 17*9880d681SAndroid Build Coastguard Worker; CHECK: ret 18*9880d681SAndroid Build Coastguard Worker 19*9880d681SAndroid Build Coastguard Workerbb4.thread: 20*9880d681SAndroid Build Coastguard Worker br label %bb2.outer 21*9880d681SAndroid Build Coastguard Worker 22*9880d681SAndroid Build Coastguard Workerbb2.outer: ; preds = %bb4, %bb4.thread 23*9880d681SAndroid Build Coastguard Worker %indvar19 = phi i64 [ 0, %bb4.thread ], [ %indvar.next29, %bb4 ] ; <i64> [#uses=3] 24*9880d681SAndroid Build Coastguard Worker %indvar31 = trunc i64 %indvar19 to i16 ; <i16> [#uses=1] 25*9880d681SAndroid Build Coastguard Worker %i.0.reg2mem.0.ph = sub i16 639, %indvar31 ; <i16> [#uses=1] 26*9880d681SAndroid Build Coastguard Worker %0 = zext i16 %i.0.reg2mem.0.ph to i32 ; <i32> [#uses=1] 27*9880d681SAndroid Build Coastguard Worker %1 = mul i32 %0, 480 ; <i32> [#uses=1] 28*9880d681SAndroid Build Coastguard Worker %tmp21 = mul i64 %indvar19, -478 ; <i64> [#uses=1] 29*9880d681SAndroid Build Coastguard Worker br label %bb2 30*9880d681SAndroid Build Coastguard Worker 31*9880d681SAndroid Build Coastguard Workerbb2: ; preds = %bb2, %bb2.outer 32*9880d681SAndroid Build Coastguard Worker %indvar = phi i64 [ 0, %bb2.outer ], [ %indvar.next, %bb2 ] ; <i64> [#uses=3] 33*9880d681SAndroid Build Coastguard Worker %indvar16 = trunc i64 %indvar to i16 ; <i16> [#uses=1] 34*9880d681SAndroid Build Coastguard Worker %ctg2 = getelementptr i8, i8* %out, i64 %tmp21 ; <i8*> [#uses=1] 35*9880d681SAndroid Build Coastguard Worker %tmp22 = ptrtoint i8* %ctg2 to i64 ; <i64> [#uses=1] 36*9880d681SAndroid Build Coastguard Worker %tmp24 = sub i64 %tmp22, %indvar ; <i64> [#uses=1] 37*9880d681SAndroid Build Coastguard Worker %out_addr.0.reg2mem.0 = inttoptr i64 %tmp24 to i8* ; <i8*> [#uses=1] 38*9880d681SAndroid Build Coastguard Worker %j.0.reg2mem.0 = sub i16 479, %indvar16 ; <i16> [#uses=1] 39*9880d681SAndroid Build Coastguard Worker %2 = zext i16 %j.0.reg2mem.0 to i32 ; <i32> [#uses=1] 40*9880d681SAndroid Build Coastguard Worker %3 = add i32 %1, %2 ; <i32> [#uses=9] 41*9880d681SAndroid Build Coastguard Worker %4 = add i32 %3, -481 ; <i32> [#uses=1] 42*9880d681SAndroid Build Coastguard Worker %5 = zext i32 %4 to i64 ; <i64> [#uses=1] 43*9880d681SAndroid Build Coastguard Worker %6 = getelementptr i8, i8* %in, i64 %5 ; <i8*> [#uses=1] 44*9880d681SAndroid Build Coastguard Worker %7 = load i8, i8* %6, align 1 ; <i8> [#uses=1] 45*9880d681SAndroid Build Coastguard Worker %8 = add i32 %3, -480 ; <i32> [#uses=1] 46*9880d681SAndroid Build Coastguard Worker %9 = zext i32 %8 to i64 ; <i64> [#uses=1] 47*9880d681SAndroid Build Coastguard Worker %10 = getelementptr i8, i8* %in, i64 %9 ; <i8*> [#uses=1] 48*9880d681SAndroid Build Coastguard Worker %11 = load i8, i8* %10, align 1 ; <i8> [#uses=1] 49*9880d681SAndroid Build Coastguard Worker %12 = add i32 %3, -479 ; <i32> [#uses=1] 50*9880d681SAndroid Build Coastguard Worker %13 = zext i32 %12 to i64 ; <i64> [#uses=1] 51*9880d681SAndroid Build Coastguard Worker %14 = getelementptr i8, i8* %in, i64 %13 ; <i8*> [#uses=1] 52*9880d681SAndroid Build Coastguard Worker %15 = load i8, i8* %14, align 1 ; <i8> [#uses=1] 53*9880d681SAndroid Build Coastguard Worker %16 = add i32 %3, -1 ; <i32> [#uses=1] 54*9880d681SAndroid Build Coastguard Worker %17 = zext i32 %16 to i64 ; <i64> [#uses=1] 55*9880d681SAndroid Build Coastguard Worker %18 = getelementptr i8, i8* %in, i64 %17 ; <i8*> [#uses=1] 56*9880d681SAndroid Build Coastguard Worker %19 = load i8, i8* %18, align 1 ; <i8> [#uses=1] 57*9880d681SAndroid Build Coastguard Worker %20 = zext i32 %3 to i64 ; <i64> [#uses=1] 58*9880d681SAndroid Build Coastguard Worker %21 = getelementptr i8, i8* %in, i64 %20 ; <i8*> [#uses=1] 59*9880d681SAndroid Build Coastguard Worker %22 = load i8, i8* %21, align 1 ; <i8> [#uses=1] 60*9880d681SAndroid Build Coastguard Worker %23 = add i32 %3, 1 ; <i32> [#uses=1] 61*9880d681SAndroid Build Coastguard Worker %24 = zext i32 %23 to i64 ; <i64> [#uses=1] 62*9880d681SAndroid Build Coastguard Worker %25 = getelementptr i8, i8* %in, i64 %24 ; <i8*> [#uses=1] 63*9880d681SAndroid Build Coastguard Worker %26 = load i8, i8* %25, align 1 ; <i8> [#uses=1] 64*9880d681SAndroid Build Coastguard Worker %27 = add i32 %3, 481 ; <i32> [#uses=1] 65*9880d681SAndroid Build Coastguard Worker %28 = zext i32 %27 to i64 ; <i64> [#uses=1] 66*9880d681SAndroid Build Coastguard Worker %29 = getelementptr i8, i8* %in, i64 %28 ; <i8*> [#uses=1] 67*9880d681SAndroid Build Coastguard Worker %30 = load i8, i8* %29, align 1 ; <i8> [#uses=1] 68*9880d681SAndroid Build Coastguard Worker %31 = add i32 %3, 480 ; <i32> [#uses=1] 69*9880d681SAndroid Build Coastguard Worker %32 = zext i32 %31 to i64 ; <i64> [#uses=1] 70*9880d681SAndroid Build Coastguard Worker %33 = getelementptr i8, i8* %in, i64 %32 ; <i8*> [#uses=1] 71*9880d681SAndroid Build Coastguard Worker %34 = load i8, i8* %33, align 1 ; <i8> [#uses=1] 72*9880d681SAndroid Build Coastguard Worker %35 = add i32 %3, 479 ; <i32> [#uses=1] 73*9880d681SAndroid Build Coastguard Worker %36 = zext i32 %35 to i64 ; <i64> [#uses=1] 74*9880d681SAndroid Build Coastguard Worker %37 = getelementptr i8, i8* %in, i64 %36 ; <i8*> [#uses=1] 75*9880d681SAndroid Build Coastguard Worker %38 = load i8, i8* %37, align 1 ; <i8> [#uses=1] 76*9880d681SAndroid Build Coastguard Worker %39 = add i8 %11, %7 ; <i8> [#uses=1] 77*9880d681SAndroid Build Coastguard Worker %40 = add i8 %39, %15 ; <i8> [#uses=1] 78*9880d681SAndroid Build Coastguard Worker %41 = add i8 %40, %19 ; <i8> [#uses=1] 79*9880d681SAndroid Build Coastguard Worker %42 = add i8 %41, %22 ; <i8> [#uses=1] 80*9880d681SAndroid Build Coastguard Worker %43 = add i8 %42, %26 ; <i8> [#uses=1] 81*9880d681SAndroid Build Coastguard Worker %44 = add i8 %43, %30 ; <i8> [#uses=1] 82*9880d681SAndroid Build Coastguard Worker %45 = add i8 %44, %34 ; <i8> [#uses=1] 83*9880d681SAndroid Build Coastguard Worker %46 = add i8 %45, %38 ; <i8> [#uses=1] 84*9880d681SAndroid Build Coastguard Worker store i8 %46, i8* %out_addr.0.reg2mem.0, align 1 85*9880d681SAndroid Build Coastguard Worker %indvar.next = add i64 %indvar, 1 ; <i64> [#uses=2] 86*9880d681SAndroid Build Coastguard Worker %exitcond = icmp eq i64 %indvar.next, 478 ; <i1> [#uses=1] 87*9880d681SAndroid Build Coastguard Worker br i1 %exitcond, label %bb4, label %bb2 88*9880d681SAndroid Build Coastguard Worker 89*9880d681SAndroid Build Coastguard Workerbb4: ; preds = %bb2 90*9880d681SAndroid Build Coastguard Worker %indvar.next29 = add i64 %indvar19, 1 ; <i64> [#uses=2] 91*9880d681SAndroid Build Coastguard Worker %exitcond30 = icmp eq i64 %indvar.next29, 638 ; <i1> [#uses=1] 92*9880d681SAndroid Build Coastguard Worker br i1 %exitcond30, label %return, label %bb2.outer 93*9880d681SAndroid Build Coastguard Worker 94*9880d681SAndroid Build Coastguard Workerreturn: ; preds = %bb4 95*9880d681SAndroid Build Coastguard Worker ret void 96*9880d681SAndroid Build Coastguard Worker} 97