1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc -mtriple=x86_64-unknown-linux-gnu -relocation-model=static < %s | FileCheck %s --check-prefix=CHECK 3; RUN: llc -mcpu=atom -mtriple=x86_64-unknown-linux-gnu -relocation-model=static < %s | FileCheck %s --check-prefix=ATOM 4 5@A = external dso_local global [0 x double] 6 7define void @foo(i64 %n) nounwind { 8; CHECK-LABEL: foo: 9; CHECK: # %bb.0: # %entry 10; CHECK-NEXT: testq %rdi, %rdi 11; CHECK-NEXT: jle .LBB0_3 12; CHECK-NEXT: # %bb.1: # %for.body.preheader 13; CHECK-NEXT: xorl %eax, %eax 14; CHECK-NEXT: movsd {{.*#+}} xmm0 = [2.2999999999999998E+0,0.0E+0] 15; CHECK-NEXT: .p2align 4 16; CHECK-NEXT: .LBB0_2: # %for.body 17; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 18; CHECK-NEXT: movsd {{.*#+}} xmm1 = mem[0],zero 19; CHECK-NEXT: mulsd %xmm0, %xmm1 20; CHECK-NEXT: movsd %xmm1, A(,%rax,8) 21; CHECK-NEXT: incq %rax 22; CHECK-NEXT: cmpq %rax, %rdi 23; CHECK-NEXT: jne .LBB0_2 24; CHECK-NEXT: .LBB0_3: # %for.end 25; CHECK-NEXT: retq 26; 27; ATOM-LABEL: foo: 28; ATOM: # %bb.0: # %entry 29; ATOM-NEXT: testq %rdi, %rdi 30; ATOM-NEXT: jle .LBB0_3 31; ATOM-NEXT: # %bb.1: # %for.body.preheader 32; ATOM-NEXT: xorl %eax, %eax 33; ATOM-NEXT: movsd {{.*#+}} xmm0 = [2.2999999999999998E+0,0.0E+0] 34; ATOM-NEXT: .p2align 4 35; ATOM-NEXT: .LBB0_2: # %for.body 36; ATOM-NEXT: # =>This Inner Loop Header: Depth=1 37; ATOM-NEXT: movsd {{.*#+}} xmm1 = mem[0],zero 38; ATOM-NEXT: mulsd %xmm0, %xmm1 39; ATOM-NEXT: movsd %xmm1, A(,%rax,8) 40; ATOM-NEXT: leaq 1(%rax), %rax 41; ATOM-NEXT: cmpq %rax, %rdi 42; ATOM-NEXT: jne .LBB0_2 43; ATOM-NEXT: .LBB0_3: # %for.end 44; ATOM-NEXT: nop 45; ATOM-NEXT: nop 46; ATOM-NEXT: nop 47; ATOM-NEXT: nop 48; ATOM-NEXT: retq 49entry: 50 %cmp5 = icmp sgt i64 %n, 0 51 br i1 %cmp5, label %for.body, label %for.end 52 53for.body: 54 %i.06 = phi i64 [ %inc, %for.body ], [ 0, %entry ] 55 %arrayidx = getelementptr [0 x double], ptr @A, i64 0, i64 %i.06 56 %tmp3 = load double, ptr %arrayidx, align 8 57 %mul = fmul double %tmp3, 2.300000e+00 58 store double %mul, ptr %arrayidx, align 8 59 %inc = add nsw i64 %i.06, 1 60 %exitcond = icmp eq i64 %inc, %n 61 br i1 %exitcond, label %for.end, label %for.body 62 63for.end: 64 ret void 65} 66