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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc < %s | FileCheck %s3 4target datalayout = "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"5target triple = "thumbv7m--linux-gnu"6 7; NOTE: When optimising for minimum size, an LDM is expected to be generated8define void @f(i32 %n, ptr nocapture %a, ptr nocapture readonly %b) optsize minsize {9; CHECK-LABEL: f:10; CHECK: @ %bb.0:11; CHECK-NEXT: cmp r0, #112; CHECK-NEXT: blt .LBB0_213; CHECK-NEXT: .LBB0_1: @ %.lr.ph14; CHECK-NEXT: @ =>This Inner Loop Header: Depth=115; CHECK-NEXT: ldm r2!, {r3}16; CHECK-NEXT: adds r3, #317; CHECK-NEXT: stm r1!, {r3}18; CHECK-NEXT: subs r0, #119; CHECK-NEXT: bne .LBB0_120; CHECK-NEXT: .LBB0_2: @ %._crit_edge21; CHECK-NEXT: bx lr22 %1 = icmp sgt i32 %n, 023 br i1 %1, label %.lr.ph, label %._crit_edge24 25.lr.ph: ; preds = %.lr.ph, %026 %i.04 = phi i32 [ %6, %.lr.ph ], [ 0, %0 ]27 %.03 = phi ptr [ %2, %.lr.ph ], [ %b, %0 ]28 %.012 = phi ptr [ %5, %.lr.ph ], [ %a, %0 ]29 %2 = getelementptr inbounds i32, ptr %.03, i32 130 %3 = load i32, ptr %.03, align 431 %4 = add nsw i32 %3, 332 %5 = getelementptr inbounds i32, ptr %.012, i32 133 store i32 %4, ptr %.012, align 434 %6 = add nsw i32 %i.04, 135 %exitcond = icmp eq i32 %6, %n36 br i1 %exitcond, label %._crit_edge, label %.lr.ph37 38._crit_edge: ; preds = %.lr.ph, %039 ret void40}41 42; NOTE: When not optimising for minimum size, an LDM is expected not to be generated43define void @f_nominsize(i32 %n, ptr nocapture %a, ptr nocapture readonly %b) optsize {44; CHECK-LABEL: f_nominsize:45; CHECK: @ %bb.0:46; CHECK-NEXT: cmp r0, #147; CHECK-NEXT: it lt48; CHECK-NEXT: bxlt lr49; CHECK-NEXT: .LBB1_1: @ %.lr.ph50; CHECK-NEXT: @ =>This Inner Loop Header: Depth=151; CHECK-NEXT: ldr r3, [r2], #452; CHECK-NEXT: subs r0, #153; CHECK-NEXT: add.w r3, r3, #354; CHECK-NEXT: str r3, [r1], #455; CHECK-NEXT: bne .LBB1_156; CHECK-NEXT: @ %bb.2: @ %._crit_edge57; CHECK-NEXT: bx lr58 %1 = icmp sgt i32 %n, 059 br i1 %1, label %.lr.ph, label %._crit_edge60 61.lr.ph: ; preds = %.lr.ph, %062 %i.04 = phi i32 [ %6, %.lr.ph ], [ 0, %0 ]63 %.03 = phi ptr [ %2, %.lr.ph ], [ %b, %0 ]64 %.012 = phi ptr [ %5, %.lr.ph ], [ %a, %0 ]65 %2 = getelementptr inbounds i32, ptr %.03, i32 166 %3 = load i32, ptr %.03, align 467 %4 = add nsw i32 %3, 368 %5 = getelementptr inbounds i32, ptr %.012, i32 169 store i32 %4, ptr %.012, align 470 %6 = add nsw i32 %i.04, 171 %exitcond = icmp eq i32 %6, %n72 br i1 %exitcond, label %._crit_edge, label %.lr.ph73 74._crit_edge: ; preds = %.lr.ph, %075 ret void76}77