; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s --check-prefix=CHECK ; This tests for a cyclic dependencies in the generated DAG. @c = external dso_local local_unnamed_addr global i32, align 4 @a = external dso_local local_unnamed_addr global i32, align 4 @b = external dso_local local_unnamed_addr global i32, align 4 define void @foo() { ; CHECK-LABEL: foo: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: movl $0, b(%rip) ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %r8d ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %edi ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %esi ; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax ; CHECK-NEXT: cltd ; CHECK-NEXT: idivl a(%rip) ; CHECK-NEXT: movl %eax, %ecx ; CHECK-NEXT: movl c(%rip), %eax ; CHECK-NEXT: cltd ; CHECK-NEXT: idivl %esi ; CHECK-NEXT: andl %edi, %eax ; CHECK-NEXT: addl %ecx, %eax ; CHECK-NEXT: andl %r8d, %eax ; CHECK-NEXT: movl %eax, (%rax) ; CHECK-NEXT: retq entry: %e = alloca i32, align 4 %e.0.e.0.24 = load volatile i32, ptr %e, align 4 %e.0.e.0.25 = load volatile i32, ptr %e, align 4 %e.0.e.0.26 = load volatile i32, ptr %e, align 4 %e.0.e.0.27 = load volatile i32, ptr %e, align 4 %e.0.e.0.28 = load volatile i32, ptr %e, align 4 %e.0.e.0.29 = load volatile i32, ptr %e, align 4 %e.0.e.0.30 = load volatile i32, ptr %e, align 4 %e.0.e.0.31 = load volatile i32, ptr %e, align 4 %e.0.e.0.32 = load volatile i32, ptr %e, align 4 %e.0.e.0.33 = load volatile i32, ptr %e, align 4 %e.0.e.0.34 = load volatile i32, ptr %e, align 4 %e.0.e.0.35 = load volatile i32, ptr %e, align 4 %e.0.e.0.36 = load volatile i32, ptr %e, align 4 %e.0.e.0.37 = load volatile i32, ptr %e, align 4 %e.0.e.0.39 = load volatile i32, ptr %e, align 4 %tmp = load i32, ptr @a, align 4 store i32 0, ptr @b, align 4 %e.0.e.0.41 = load volatile i32, ptr %e, align 4 %add17 = add nsw i32 %e.0.e.0.41, 0 %e.0.e.0.42 = load volatile i32, ptr %e, align 4 %tmp1 = load i32, ptr @c, align 4 %e.0.e.0.43 = load volatile i32, ptr %e, align 4 %div = sdiv i32 %tmp1, %e.0.e.0.43 %and18 = and i32 %div, %e.0.e.0.42 %e.0.e.0.44 = load volatile i32, ptr %e, align 4 %div19 = sdiv i32 %e.0.e.0.44, %tmp %add20 = add nsw i32 %div19, %and18 %and21 = and i32 %add20, %add17 store volatile i32 %and21, ptr undef, align 4 ret void }