; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5 ; RUN: llc < %s -mtriple=aarch64-none-elf | FileCheck %s ; Check that the load in the loop has postindex addressing, regardless of the ; type or whether the input uses postindex or offset addressing. define i32 @i32_initially_postidx(ptr %p, i64 %n) { ; CHECK-LABEL: i32_initially_postidx: ; CHECK: // %bb.0: // %entry ; CHECK-NEXT: cmp x1, #1 ; CHECK-NEXT: b.lt .LBB0_5 ; CHECK-NEXT: // %bb.1: // %for.body.preheader ; CHECK-NEXT: mov w8, wzr ; CHECK-NEXT: .LBB0_2: // %for.body ; CHECK-NEXT: // =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: ldr w9, [x0], #4 ; CHECK-NEXT: add w8, w8, w9 ; CHECK-NEXT: cmp w8, #0 ; CHECK-NEXT: b.lo .LBB0_5 ; CHECK-NEXT: // %bb.3: // %for.inc ; CHECK-NEXT: // in Loop: Header=BB0_2 Depth=1 ; CHECK-NEXT: subs x1, x1, #1 ; CHECK-NEXT: b.ne .LBB0_2 ; CHECK-NEXT: // %bb.4: // %cleanup ; CHECK-NEXT: mov w0, w8 ; CHECK-NEXT: ret ; CHECK-NEXT: .LBB0_5: ; CHECK-NEXT: mov w8, wzr ; CHECK-NEXT: mov w0, w8 ; CHECK-NEXT: ret entry: %cmp1 = icmp sgt i64 %n, 0 br i1 %cmp1, label %for.body, label %cleanup for.body: %iv = phi i64 [ %iv.next, %for.inc ], [ 0, %entry ] %accum = phi i32 [ %add, %for.inc ], [ 0, %entry ] %ptr = phi ptr [ %ptr.next, %for.inc ], [ %p, %entry ] %val = load i32, ptr %ptr, align 4 %ptr.next = getelementptr inbounds nuw i8, ptr %ptr, i64 4 %add = add i32 %accum, %val %cmp2 = icmp ult i32 %add, 0 br i1 %cmp2, label %cleanup, label %for.inc for.inc: %iv.next = add nuw nsw i64 %iv, 1 %exitcond = icmp eq i64 %iv.next, %n br i1 %exitcond, label %cleanup, label %for.body cleanup: %ret = phi i32 [ 0, %entry ], [ 0, %for.body ], [ %add, %for.inc ] ret i32 %ret } define i32 @i32_initially_offset(ptr %p, i64 %n) { ; CHECK-LABEL: i32_initially_offset: ; CHECK: // %bb.0: // %entry ; CHECK-NEXT: cmp x1, #1 ; CHECK-NEXT: b.lt .LBB1_5 ; CHECK-NEXT: // %bb.1: // %for.body.preheader ; CHECK-NEXT: mov w8, wzr ; CHECK-NEXT: .LBB1_2: // %for.body ; CHECK-NEXT: // =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: ldr w9, [x0], #4 ; CHECK-NEXT: add w8, w8, w9 ; CHECK-NEXT: cmp w8, #0 ; CHECK-NEXT: b.lo .LBB1_5 ; CHECK-NEXT: // %bb.3: // %for.cond ; CHECK-NEXT: // in Loop: Header=BB1_2 Depth=1 ; CHECK-NEXT: subs x1, x1, #1 ; CHECK-NEXT: b.ne .LBB1_2 ; CHECK-NEXT: // %bb.4: // %cleanup ; CHECK-NEXT: mov w0, w8 ; CHECK-NEXT: ret ; CHECK-NEXT: .LBB1_5: ; CHECK-NEXT: mov w8, wzr ; CHECK-NEXT: mov w0, w8 ; CHECK-NEXT: ret entry: %cmp1 = icmp sgt i64 %n, 0 br i1 %cmp1, label %for.body, label %cleanup for.cond: %iv.next = add nuw nsw i64 %iv, 1 %exitcond = icmp eq i64 %iv.next, %n br i1 %exitcond, label %cleanup, label %for.body for.body: %iv = phi i64 [ %iv.next, %for.cond ], [ 0, %entry ] %accum = phi i32 [ %add, %for.cond ], [ 0, %entry ] %arrayidx = getelementptr inbounds nuw i32, ptr %p, i64 %iv %val = load i32, ptr %arrayidx, align 4 %add = add i32 %accum, %val %cmp2 = icmp ult i32 %add, 0 br i1 %cmp2, label %cleanup, label %for.cond cleanup: %ret = phi i32 [ 0, %entry ], [ 0, %for.body ], [ %add, %for.cond ] ret i32 %ret } define float @float_initially_postidx(ptr %p, i64 %n) { ; CHECK-LABEL: float_initially_postidx: ; CHECK: // %bb.0: // %entry ; CHECK-NEXT: movi d0, #0000000000000000 ; CHECK-NEXT: cmp x1, #1 ; CHECK-NEXT: b.lt .LBB2_3 ; CHECK-NEXT: .LBB2_1: // %for.body ; CHECK-NEXT: // =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: ldr s1, [x0], #4 ; CHECK-NEXT: fadd s0, s0, s1 ; CHECK-NEXT: fcmp s0, #0.0 ; CHECK-NEXT: b.mi .LBB2_4 ; CHECK-NEXT: // %bb.2: // %for.inc ; CHECK-NEXT: // in Loop: Header=BB2_1 Depth=1 ; CHECK-NEXT: subs x1, x1, #1 ; CHECK-NEXT: b.ne .LBB2_1 ; CHECK-NEXT: .LBB2_3: // %cleanup ; CHECK-NEXT: ret ; CHECK-NEXT: .LBB2_4: ; CHECK-NEXT: movi d0, #0000000000000000 ; CHECK-NEXT: ret entry: %cmp1 = icmp sgt i64 %n, 0 br i1 %cmp1, label %for.body, label %cleanup for.body: %iv = phi i64 [ %iv.next, %for.inc ], [ 0, %entry ] %accum = phi float [ %add, %for.inc ], [ 0.000000e+00, %entry ] %ptr = phi ptr [ %ptr.next, %for.inc ], [ %p, %entry ] %val = load float, ptr %ptr, align 4 %ptr.next = getelementptr inbounds nuw i8, ptr %ptr, i64 4 %add = fadd float %accum, %val %cmp2 = fcmp olt float %add, 0.000000e+00 br i1 %cmp2, label %cleanup, label %for.inc for.inc: %iv.next = add nuw nsw i64 %iv, 1 %exitcond = icmp eq i64 %iv.next, %n br i1 %exitcond, label %cleanup, label %for.body cleanup: %ret = phi float [ 0.000000e+00, %entry ], [ 0.000000e+00, %for.body ], [ %add, %for.inc ] ret float %ret } define float @float_initially_offset(ptr %p, i64 %n) { ; CHECK-LABEL: float_initially_offset: ; CHECK: // %bb.0: // %entry ; CHECK-NEXT: movi d0, #0000000000000000 ; CHECK-NEXT: cmp x1, #1 ; CHECK-NEXT: b.lt .LBB3_3 ; CHECK-NEXT: .LBB3_1: // %for.body ; CHECK-NEXT: // =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: ldr s1, [x0], #4 ; CHECK-NEXT: fadd s0, s0, s1 ; CHECK-NEXT: fcmp s0, #0.0 ; CHECK-NEXT: b.mi .LBB3_4 ; CHECK-NEXT: // %bb.2: // %for.cond ; CHECK-NEXT: // in Loop: Header=BB3_1 Depth=1 ; CHECK-NEXT: subs x1, x1, #1 ; CHECK-NEXT: b.ne .LBB3_1 ; CHECK-NEXT: .LBB3_3: // %cleanup ; CHECK-NEXT: ret ; CHECK-NEXT: .LBB3_4: ; CHECK-NEXT: movi d0, #0000000000000000 ; CHECK-NEXT: ret entry: %cmp1 = icmp sgt i64 %n, 0 br i1 %cmp1, label %for.body, label %cleanup for.cond: %iv.next = add nuw nsw i64 %iv, 1 %exitcond = icmp eq i64 %iv.next, %n br i1 %exitcond, label %cleanup, label %for.body for.body: %iv = phi i64 [ %iv.next, %for.cond ], [ 0, %entry ] %accum = phi float [ %add, %for.cond ], [ 0.000000e+00, %entry ] %arrayidx = getelementptr inbounds nuw float, ptr %p, i64 %iv %val = load float, ptr %arrayidx, align 4 %add = fadd float %accum, %val %cmp2 = fcmp olt float %add, 0.000000e+00 br i1 %cmp2, label %cleanup, label %for.cond cleanup: %ret = phi float [ 0.000000e+00, %entry ], [ 0.000000e+00, %for.body ], [ %add, %for.cond ] ret float %ret }