1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc -mtriple=thumbv6-linux-gnueabi < %s | FileCheck %s 3 4; After various DAGCombine optimizations, we end up with an sbcs with 5; multiple uses of the cpsr def, and we therefore clone the subs/sbcs. 6; Make sure this doesn't crash. 7; 8; The output here might change at some point in the future, and no 9; longer clone the operations; if that happens, there probably isn't any 10; straightforward way to fix the test. 11define i64 @f(i64 %x2, i32 %z) { 12; CHECK-LABEL: f: 13; CHECK: @ %bb.0: 14; CHECK-NEXT: .save {r4, r5, r7, lr} 15; CHECK-NEXT: push {r4, r5, r7, lr} 16; CHECK-NEXT: movs r2, #0 17; CHECK-NEXT: subs r3, r0, #1 18; CHECK-NEXT: mov r3, r1 19; CHECK-NEXT: sbcs r3, r2 20; CHECK-NEXT: mov r3, r2 21; CHECK-NEXT: adcs r3, r2 22; CHECK-NEXT: movs r4, #30 23; CHECK-NEXT: subs r5, r0, #1 24; CHECK-NEXT: mov r5, r1 25; CHECK-NEXT: sbcs r5, r2 26; CHECK-NEXT: adcs r4, r2 27; CHECK-NEXT: lsls r2, r1, #1 28; CHECK-NEXT: lsls r2, r4 29; CHECK-NEXT: movs r4, #1 30; CHECK-NEXT: eors r4, r3 31; CHECK-NEXT: lsrs r0, r4 32; CHECK-NEXT: orrs r0, r2 33; CHECK-NEXT: lsrs r1, r4 34; CHECK-NEXT: pop {r4, r5, r7, pc} 35 %x3 = add nsw i64 %x2, -1 36 %x8 = icmp ne i64 %x2, 0 37 %x9 = xor i1 %x8, true 38 %x10 = zext i1 %x9 to i64 39 %x11 = lshr i64 %x2, %x10 40 ret i64 %x11 41} 42