| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=thumbv8.1-m.main-none-eabi -mcpu=cortex-m55 -O3 < %s | FileCheck %s |
| |
| define i32 @loop(i32* nocapture readonly %x) { |
| ; CHECK-LABEL: loop: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: .save {r7, lr} |
| ; CHECK-NEXT: push {r7, lr} |
| ; CHECK-NEXT: mov.w lr, #500 |
| ; CHECK-NEXT: movs r1, #0 |
| ; CHECK-NEXT: .p2align 2 |
| ; CHECK-NEXT: .LBB0_1: @ %for.body |
| ; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1 |
| ; CHECK-NEXT: ldr r2, [r0], #4 |
| ; CHECK-NEXT: add r1, r2 |
| ; CHECK-NEXT: le lr, .LBB0_1 |
| ; CHECK-NEXT: @ %bb.2: @ %for.cond.cleanup |
| ; CHECK-NEXT: mov r0, r1 |
| ; CHECK-NEXT: pop {r7, pc} |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: ; preds = %for.body |
| ret i32 %add |
| |
| for.body: ; preds = %entry, %for.body |
| %i.07 = phi i32 [ 0, %entry ], [ %inc, %for.body ] |
| %s.06 = phi i32 [ 0, %entry ], [ %add, %for.body ] |
| %arrayidx = getelementptr inbounds i32, i32* %x, i32 %i.07 |
| %0 = load i32, i32* %arrayidx, align 4 |
| %add = add nsw i32 %0, %s.06 |
| %inc = add nuw nsw i32 %i.07, 1 |
| %exitcond.not = icmp eq i32 %inc, 500 |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |
| |
| define i64 @loopif(i32* nocapture readonly %x, i32 %y, i32 %n) { |
| ; CHECK-LABEL: loopif: |
| ; CHECK: @ %bb.0: @ %entry |
| ; CHECK-NEXT: .save {r7, lr} |
| ; CHECK-NEXT: push {r7, lr} |
| ; CHECK-NEXT: cmp r2, #1 |
| ; CHECK-NEXT: blt .LBB1_4 |
| ; CHECK-NEXT: @ %bb.1: @ %for.body.lr.ph |
| ; CHECK-NEXT: mov lr, r2 |
| ; CHECK-NEXT: dls lr, r2 |
| ; CHECK-NEXT: mov r12, r0 |
| ; CHECK-NEXT: movs r0, #0 |
| ; CHECK-NEXT: movs r3, #0 |
| ; CHECK-NEXT: .p2align 2 |
| ; CHECK-NEXT: .LBB1_2: @ %for.body |
| ; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1 |
| ; CHECK-NEXT: ldr r2, [r12], #4 |
| ; CHECK-NEXT: smlal r0, r3, r2, r1 |
| ; CHECK-NEXT: le lr, .LBB1_2 |
| ; CHECK-NEXT: @ %bb.3: @ %for.cond.cleanup |
| ; CHECK-NEXT: mov r1, r3 |
| ; CHECK-NEXT: pop {r7, pc} |
| ; CHECK-NEXT: .p2align 2 |
| ; CHECK-NEXT: .LBB1_4: |
| ; CHECK-NEXT: movs r0, #0 |
| ; CHECK-NEXT: movs r3, #0 |
| ; CHECK-NEXT: mov r1, r3 |
| ; CHECK-NEXT: pop {r7, pc} |
| entry: |
| %cmp7 = icmp sgt i32 %n, 0 |
| br i1 %cmp7, label %for.body.lr.ph, label %for.cond.cleanup |
| |
| for.body.lr.ph: ; preds = %entry |
| %conv1 = sext i32 %y to i64 |
| br label %for.body |
| |
| for.cond.cleanup: ; preds = %for.body, %entry |
| %s.0.lcssa = phi i64 [ 0, %entry ], [ %add, %for.body ] |
| ret i64 %s.0.lcssa |
| |
| for.body: ; preds = %for.body.lr.ph, %for.body |
| %i.09 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ] |
| %s.08 = phi i64 [ 0, %for.body.lr.ph ], [ %add, %for.body ] |
| %arrayidx = getelementptr inbounds i32, i32* %x, i32 %i.09 |
| %0 = load i32, i32* %arrayidx, align 4 |
| %conv = sext i32 %0 to i64 |
| %mul = mul nsw i64 %conv, %conv1 |
| %add = add nsw i64 %mul, %s.08 |
| %inc = add nuw nsw i32 %i.09, 1 |
| %exitcond.not = icmp eq i32 %inc, %n |
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body |
| } |