1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -mtriple=thumbv8.1m.main-none-none-eabi -mattr=+mve -tail-predication=enabled -loop-vectorize -instcombine -simplifycfg -simplifycfg-require-and-preserve-domtree=1 %s -S -o - | FileCheck %s 3 4target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" 5 6define arm_aapcs_vfpcc i32 @minmaxval4(i32* nocapture readonly %x, i32* nocapture %minp, i32 %N) { 7; CHECK-LABEL: @minmaxval4( 8; CHECK-NEXT: entry: 9; CHECK-NEXT: [[CMP26_NOT:%.*]] = icmp eq i32 [[N:%.*]], 0 10; CHECK-NEXT: br i1 [[CMP26_NOT]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY_PREHEADER:%.*]] 11; CHECK: for.body.preheader: 12; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 4 13; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 14; CHECK: vector.ph: 15; CHECK-NEXT: [[N_VEC:%.*]] = and i32 [[N]], -4 16; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 17; CHECK: vector.body: 18; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 19; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x i32> [ <i32 2147483647, i32 2147483647, i32 2147483647, i32 2147483647>, [[VECTOR_PH]] ], [ [[TMP3:%.*]], [[VECTOR_BODY]] ] 20; CHECK-NEXT: [[VEC_PHI1:%.*]] = phi <4 x i32> [ <i32 -2147483648, i32 -2147483648, i32 -2147483648, i32 -2147483648>, [[VECTOR_PH]] ], [ [[TMP2:%.*]], [[VECTOR_BODY]] ] 21; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds i32, i32* [[X:%.*]], i32 [[INDEX]] 22; CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[TMP0]] to <4 x i32>* 23; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i32>, <4 x i32>* [[TMP1]], align 4 24; CHECK-NEXT: [[TMP2]] = call <4 x i32> @llvm.smax.v4i32(<4 x i32> [[WIDE_LOAD]], <4 x i32> [[VEC_PHI1]]) 25; CHECK-NEXT: [[TMP3]] = call <4 x i32> @llvm.smin.v4i32(<4 x i32> [[WIDE_LOAD]], <4 x i32> [[VEC_PHI]]) 26; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4 27; CHECK-NEXT: [[TMP4:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]] 28; CHECK-NEXT: br i1 [[TMP4]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 29; CHECK: middle.block: 30; CHECK-NEXT: [[TMP5:%.*]] = call i32 @llvm.vector.reduce.smax.v4i32(<4 x i32> [[TMP2]]) 31; CHECK-NEXT: [[TMP6:%.*]] = call i32 @llvm.vector.reduce.smin.v4i32(<4 x i32> [[TMP3]]) 32; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i32 [[N_VEC]], [[N]] 33; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_COND_CLEANUP]], label [[SCALAR_PH]] 34; CHECK: scalar.ph: 35; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[FOR_BODY_PREHEADER]] ] 36; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP6]], [[MIDDLE_BLOCK]] ], [ 2147483647, [[FOR_BODY_PREHEADER]] ] 37; CHECK-NEXT: [[BC_MERGE_RDX2:%.*]] = phi i32 [ [[TMP5]], [[MIDDLE_BLOCK]] ], [ -2147483648, [[FOR_BODY_PREHEADER]] ] 38; CHECK-NEXT: br label [[FOR_BODY:%.*]] 39; CHECK: for.cond.cleanup: 40; CHECK-NEXT: [[MAX_0_LCSSA:%.*]] = phi i32 [ -2147483648, [[ENTRY:%.*]] ], [ [[TMP8:%.*]], [[FOR_BODY]] ], [ [[TMP5]], [[MIDDLE_BLOCK]] ] 41; CHECK-NEXT: [[MIN_0_LCSSA:%.*]] = phi i32 [ 2147483647, [[ENTRY]] ], [ [[TMP9:%.*]], [[FOR_BODY]] ], [ [[TMP6]], [[MIDDLE_BLOCK]] ] 42; CHECK-NEXT: store i32 [[MIN_0_LCSSA]], i32* [[MINP:%.*]], align 4 43; CHECK-NEXT: ret i32 [[MAX_0_LCSSA]] 44; CHECK: for.body: 45; CHECK-NEXT: [[I_029:%.*]] = phi i32 [ [[INC:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] 46; CHECK-NEXT: [[MIN_028:%.*]] = phi i32 [ [[TMP9]], [[FOR_BODY]] ], [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ] 47; CHECK-NEXT: [[MAX_027:%.*]] = phi i32 [ [[TMP8]], [[FOR_BODY]] ], [ [[BC_MERGE_RDX2]], [[SCALAR_PH]] ] 48; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32* [[X]], i32 [[I_029]] 49; CHECK-NEXT: [[TMP7:%.*]] = load i32, i32* [[ARRAYIDX]], align 4 50; CHECK-NEXT: [[TMP8]] = call i32 @llvm.smax.i32(i32 [[TMP7]], i32 [[MAX_027]]) 51; CHECK-NEXT: [[TMP9]] = call i32 @llvm.smin.i32(i32 [[TMP7]], i32 [[MIN_028]]) 52; CHECK-NEXT: [[INC]] = add nuw i32 [[I_029]], 1 53; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] 54; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]] 55; 56entry: 57 %cmp26.not = icmp eq i32 %N, 0 58 br i1 %cmp26.not, label %for.cond.cleanup, label %for.body 59 60for.cond.cleanup: ; preds = %for.body, %entry 61 %max.0.lcssa = phi i32 [ -2147483648, %entry ], [ %cond, %for.body ] 62 %min.0.lcssa = phi i32 [ 2147483647, %entry ], [ %cond9, %for.body ] 63 store i32 %min.0.lcssa, i32* %minp, align 4 64 ret i32 %max.0.lcssa 65 66for.body: ; preds = %entry, %for.body 67 %i.029 = phi i32 [ %inc, %for.body ], [ 0, %entry ] 68 %min.028 = phi i32 [ %cond9, %for.body ], [ 2147483647, %entry ] 69 %max.027 = phi i32 [ %cond, %for.body ], [ -2147483648, %entry ] 70 %arrayidx = getelementptr inbounds i32, i32* %x, i32 %i.029 71 %0 = load i32, i32* %arrayidx, align 4 72 %cmp1 = icmp sgt i32 %0, %max.027 73 %cond = select i1 %cmp1, i32 %0, i32 %max.027 74 %cmp4 = icmp slt i32 %0, %min.028 75 %cond9 = select i1 %cmp4, i32 %0, i32 %min.028 76 %inc = add nuw i32 %i.029, 1 77 %exitcond.not = icmp eq i32 %inc, %N 78 br i1 %exitcond.not, label %for.cond.cleanup, label %for.body 79} 80 81