1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 2; RUN: opt < %s -passes=loop-vectorize -mtriple riscv64 -mattr=+v -S | FileCheck %s -check-prefix=NO-ZVFHMIN 3; RUN: opt < %s -passes=loop-vectorize -mtriple riscv64 -mattr=+v,+zvfhmin -S | FileCheck %s -check-prefix=ZVFHMIN 4 5define void @fadd(ptr noalias %a, ptr noalias %b, i64 %n) { 6; NO-ZVFHMIN-LABEL: define void @fadd( 7; NO-ZVFHMIN-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) #[[ATTR0:[0-9]+]] { 8; NO-ZVFHMIN-NEXT: [[ENTRY:.*]]: 9; NO-ZVFHMIN-NEXT: br label %[[LOOP:.*]] 10; NO-ZVFHMIN: [[LOOP]]: 11; NO-ZVFHMIN-NEXT: [[I:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[I_NEXT:%.*]], %[[LOOP]] ] 12; NO-ZVFHMIN-NEXT: [[A_GEP:%.*]] = getelementptr half, ptr [[A]], i64 [[I]] 13; NO-ZVFHMIN-NEXT: [[B_GEP:%.*]] = getelementptr half, ptr [[B]], i64 [[I]] 14; NO-ZVFHMIN-NEXT: [[X:%.*]] = load half, ptr [[A_GEP]], align 2 15; NO-ZVFHMIN-NEXT: [[Y:%.*]] = load half, ptr [[B_GEP]], align 2 16; NO-ZVFHMIN-NEXT: [[Z:%.*]] = fadd half [[X]], [[Y]] 17; NO-ZVFHMIN-NEXT: store half [[Z]], ptr [[A_GEP]], align 2 18; NO-ZVFHMIN-NEXT: [[I_NEXT]] = add i64 [[I]], 1 19; NO-ZVFHMIN-NEXT: [[DONE:%.*]] = icmp eq i64 [[I_NEXT]], [[N]] 20; NO-ZVFHMIN-NEXT: br i1 [[DONE]], label %[[EXIT:.*]], label %[[LOOP]] 21; NO-ZVFHMIN: [[EXIT]]: 22; NO-ZVFHMIN-NEXT: ret void 23; 24; ZVFHMIN-LABEL: define void @fadd( 25; ZVFHMIN-SAME: ptr noalias [[A:%.*]], ptr noalias [[B:%.*]], i64 [[N:%.*]]) #[[ATTR0:[0-9]+]] { 26; ZVFHMIN-NEXT: [[ENTRY:.*]]: 27; ZVFHMIN-NEXT: [[TMP7:%.*]] = call i64 @llvm.vscale.i64() 28; ZVFHMIN-NEXT: [[TMP8:%.*]] = mul i64 [[TMP7]], 8 29; ZVFHMIN-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], [[TMP8]] 30; ZVFHMIN-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] 31; ZVFHMIN: [[VECTOR_PH]]: 32; ZVFHMIN-NEXT: [[TMP9:%.*]] = call i64 @llvm.vscale.i64() 33; ZVFHMIN-NEXT: [[TMP10:%.*]] = mul i64 [[TMP9]], 8 34; ZVFHMIN-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], [[TMP10]] 35; ZVFHMIN-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] 36; ZVFHMIN-NEXT: [[TMP12:%.*]] = call i64 @llvm.vscale.i64() 37; ZVFHMIN-NEXT: [[TMP5:%.*]] = mul i64 [[TMP12]], 8 38; ZVFHMIN-NEXT: br label %[[VECTOR_BODY:.*]] 39; ZVFHMIN: [[VECTOR_BODY]]: 40; ZVFHMIN-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ] 41; ZVFHMIN-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0 42; ZVFHMIN-NEXT: [[TMP1:%.*]] = getelementptr half, ptr [[A]], i64 [[TMP0]] 43; ZVFHMIN-NEXT: [[TMP2:%.*]] = getelementptr half, ptr [[B]], i64 [[TMP0]] 44; ZVFHMIN-NEXT: [[TMP3:%.*]] = getelementptr half, ptr [[TMP1]], i32 0 45; ZVFHMIN-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 8 x half>, ptr [[TMP3]], align 2 46; ZVFHMIN-NEXT: [[TMP4:%.*]] = getelementptr half, ptr [[TMP2]], i32 0 47; ZVFHMIN-NEXT: [[WIDE_LOAD1:%.*]] = load <vscale x 8 x half>, ptr [[TMP4]], align 2 48; ZVFHMIN-NEXT: [[TMP11:%.*]] = fadd <vscale x 8 x half> [[WIDE_LOAD]], [[WIDE_LOAD1]] 49; ZVFHMIN-NEXT: store <vscale x 8 x half> [[TMP11]], ptr [[TMP3]], align 2 50; ZVFHMIN-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]] 51; ZVFHMIN-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 52; ZVFHMIN-NEXT: br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 53; ZVFHMIN: [[MIDDLE_BLOCK]]: 54; ZVFHMIN-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] 55; ZVFHMIN-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]] 56; ZVFHMIN: [[SCALAR_PH]]: 57; ZVFHMIN-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] 58; ZVFHMIN-NEXT: br label %[[LOOP:.*]] 59; ZVFHMIN: [[LOOP]]: 60; ZVFHMIN-NEXT: [[I:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[I_NEXT:%.*]], %[[LOOP]] ] 61; ZVFHMIN-NEXT: [[A_GEP:%.*]] = getelementptr half, ptr [[A]], i64 [[I]] 62; ZVFHMIN-NEXT: [[B_GEP:%.*]] = getelementptr half, ptr [[B]], i64 [[I]] 63; ZVFHMIN-NEXT: [[X:%.*]] = load half, ptr [[A_GEP]], align 2 64; ZVFHMIN-NEXT: [[Y:%.*]] = load half, ptr [[B_GEP]], align 2 65; ZVFHMIN-NEXT: [[Z:%.*]] = fadd half [[X]], [[Y]] 66; ZVFHMIN-NEXT: store half [[Z]], ptr [[A_GEP]], align 2 67; ZVFHMIN-NEXT: [[I_NEXT]] = add i64 [[I]], 1 68; ZVFHMIN-NEXT: [[DONE:%.*]] = icmp eq i64 [[I_NEXT]], [[N]] 69; ZVFHMIN-NEXT: br i1 [[DONE]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP3:![0-9]+]] 70; ZVFHMIN: [[EXIT]]: 71; ZVFHMIN-NEXT: ret void 72; 73entry: 74 br label %loop 75loop: 76 %i = phi i64 [0, %entry], [%i.next, %loop] 77 %a.gep = getelementptr half, ptr %a, i64 %i 78 %b.gep = getelementptr half, ptr %b, i64 %i 79 %x = load half, ptr %a.gep 80 %y = load half, ptr %b.gep 81 %z = fadd half %x, %y 82 store half %z, ptr %a.gep 83 %i.next = add i64 %i, 1 84 %done = icmp eq i64 %i.next, %n 85 br i1 %done, label %exit, label %loop 86exit: 87 ret void 88} 89;. 90; ZVFHMIN: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]} 91; ZVFHMIN: [[META1]] = !{!"llvm.loop.isvectorized", i32 1} 92; ZVFHMIN: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"} 93; ZVFHMIN: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]} 94;. 95