; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; To test epilogue-vectorization we need to make sure that the vectorizer actually vectorizes the loop.
; Without a target triple this becomes difficult, unless we force vectorization through user hints.
; Currently user provided vectorization hints prevent epilogue vectorization unless the forced
; VF is the same as the epilogue vectorization VF. To make these tests target independent we'll use a
; trick where both VFs are forced to be the same value. Mismatching VFs are tested in target specific tests.
; RUN: opt -passes='loop-vectorize' -force-vector-width=4 -enable-epilogue-vectorization -epilogue-vectorization-force-VF=4 -S %s | FileCheck %s
; Some simpler cases are found profitable even without triple or user hints.
; RUN: opt -passes='loop-vectorize' -enable-epilogue-vectorization -epilogue-vectorization-force-VF=2 -S %s | FileCheck --check-prefix=CHECK-PROFITABLE-BY-DEFAULT %s
target datalayout = "e-m:e-i64:64-n32:64-v128:128:128"
define dso_local void @f1(float* noalias %aa, float* noalias %bb, float* noalias %cc, i32 signext %N) {
; CHECK-LABEL: @f1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp sgt i32 [[N:%.*]], 0
; CHECK-NEXT: br i1 [[CMP1]], label [[ITER_CHECK:%.*]], label [[FOR_END:%.*]]
; CHECK: iter.check:
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[WIDE_TRIP_COUNT]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]]
; CHECK: vector.main.loop.iter.check:
; CHECK-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[WIDE_TRIP_COUNT]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[WIDE_TRIP_COUNT]], 4
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_MOD_VF]]
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds float, float* [[BB:%.*]], i64 [[TMP0]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds float, float* [[TMP1]], i32 0
; CHECK-NEXT: [[TMP3:%.*]] = bitcast float* [[TMP2]] to <4 x float>*
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x float>, <4 x float>* [[TMP3]], align 4
; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds float, float* [[CC:%.*]], i64 [[TMP0]]
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds float, float* [[TMP4]], i32 0
; CHECK-NEXT: [[TMP6:%.*]] = bitcast float* [[TMP5]] to <4 x float>*
; CHECK-NEXT: [[WIDE_LOAD2:%.*]] = load <4 x float>, <4 x float>* [[TMP6]], align 4
; CHECK-NEXT: [[TMP7:%.*]] = fadd fast <4 x float> [[WIDE_LOAD]], [[WIDE_LOAD2]]
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds float, float* [[AA:%.*]], i64 [[TMP0]]
; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds float, float* [[TMP8]], i32 0
; CHECK-NEXT: [[TMP10:%.*]] = bitcast float* [[TMP9]] to <4 x float>*
; CHECK-NEXT: store <4 x float> [[TMP7]], <4 x float>* [[TMP10]], align 4
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT: [[TMP11:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP11]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END_LOOPEXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]]
; CHECK: vec.epilog.iter.check:
; CHECK-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_VEC]]
; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 4
; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]]
; CHECK: vec.epilog.ph:
; CHECK-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
; CHECK-NEXT: [[N_MOD_VF3:%.*]] = urem i64 [[WIDE_TRIP_COUNT]], 4
; CHECK-NEXT: [[N_VEC4:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_MOD_VF3]]
; CHECK-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]]
; CHECK: vec.epilog.vector.body:
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT9:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP12:%.*]] = add i64 [[OFFSET_IDX]], 0
; CHECK-NEXT: [[TMP13:%.*]] = getelementptr inbounds float, float* [[BB]], i64 [[TMP12]]
; CHECK-NEXT: [[TMP14:%.*]] = getelementptr inbounds float, float* [[TMP13]], i32 0
; CHECK-NEXT: [[TMP15:%.*]] = bitcast float* [[TMP14]] to <4 x float>*
; CHECK-NEXT: [[WIDE_LOAD7:%.*]] = load <4 x float>, <4 x float>* [[TMP15]], align 4
; CHECK-NEXT: [[TMP16:%.*]] = getelementptr inbounds float, float* [[CC]], i64 [[TMP12]]
; CHECK-NEXT: [[TMP17:%.*]] = getelementptr inbounds float, float* [[TMP16]], i32 0
; CHECK-NEXT: [[TMP18:%.*]] = bitcast float* [[TMP17]] to <4 x float>*
; CHECK-NEXT: [[WIDE_LOAD8:%.*]] = load <4 x float>, <4 x float>* [[TMP18]], align 4
; CHECK-NEXT: [[TMP19:%.*]] = fadd fast <4 x float> [[WIDE_LOAD7]], [[WIDE_LOAD8]]
; CHECK-NEXT: [[TMP20:%.*]] = getelementptr inbounds float, float* [[AA]], i64 [[TMP12]]
; CHECK-NEXT: [[TMP21:%.*]] = getelementptr inbounds float, float* [[TMP20]], i32 0
; CHECK-NEXT: [[TMP22:%.*]] = bitcast float* [[TMP21]] to <4 x float>*
; CHECK-NEXT: store <4 x float> [[TMP19]], <4 x float>* [[TMP22]], align 4
; CHECK-NEXT: [[INDEX_NEXT9]] = add nuw i64 [[OFFSET_IDX]], 4
; CHECK-NEXT: [[TMP23:%.*]] = icmp eq i64 [[INDEX_NEXT9]], [[N_VEC4]]
; CHECK-NEXT: br i1 [[TMP23]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]]
; CHECK: vec.epilog.middle.block:
; CHECK-NEXT: [[CMP_N5:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC4]]
; CHECK-NEXT: br i1 [[CMP_N5]], label [[FOR_END_LOOPEXIT]], label [[VEC_EPILOG_SCALAR_PH]]
; CHECK: vec.epilog.scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC4]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[ITER_CHECK]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, float* [[BB]], i64 [[INDVARS_IV]]
; CHECK-NEXT: [[TMP24:%.*]] = load float, float* [[ARRAYIDX]], align 4
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds float, float* [[CC]], i64 [[INDVARS_IV]]
; CHECK-NEXT: [[TMP25:%.*]] = load float, float* [[ARRAYIDX2]], align 4
; CHECK-NEXT: [[ADD:%.*]] = fadd fast float [[TMP24]], [[TMP25]]
; CHECK-NEXT: [[ARRAYIDX4:%.*]] = getelementptr inbounds float, float* [[AA]], i64 [[INDVARS_IV]]
; CHECK-NEXT: store float [[ADD]], float* [[ARRAYIDX4]], align 4
; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT]], !llvm.loop [[LOOP4:![0-9]+]]
; CHECK: for.end.loopexit:
; CHECK-NEXT: br label [[FOR_END]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
; CHECK-PROFITABLE-BY-DEFAULT-LABEL: @f1(
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: entry:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[CMP1:%.*]] = icmp sgt i32 [[N:%.*]], 0
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[CMP1]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: for.body.preheader:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[N]] to i64
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[FOR_BODY:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: for.body:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, float* [[BB:%.*]], i64 [[INDVARS_IV]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP0:%.*]] = load float, float* [[ARRAYIDX]], align 4
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds float, float* [[CC:%.*]], i64 [[INDVARS_IV]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP1:%.*]] = load float, float* [[ARRAYIDX2]], align 4
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ADD:%.*]] = fadd fast float [[TMP0]], [[TMP1]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ARRAYIDX4:%.*]] = getelementptr inbounds float, float* [[AA:%.*]], i64 [[INDVARS_IV]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store float [[ADD]], float* [[ARRAYIDX4]], align 4
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: for.end.loopexit:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[FOR_END]]
; CHECK-PROFITABLE-BY-DEFAULT: for.end:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: ret void
;
entry:
%cmp1 = icmp sgt i32 %N, 0
br i1 %cmp1, label %for.body.preheader, label %for.end
for.body.preheader: ; preds = %entry
%wide.trip.count = zext i32 %N to i64
br label %for.body
for.body: ; preds = %for.body.preheader, %for.body
%indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
%arrayidx = getelementptr inbounds float, float* %bb, i64 %indvars.iv
%0 = load float, float* %arrayidx, align 4
%arrayidx2 = getelementptr inbounds float, float* %cc, i64 %indvars.iv
%1 = load float, float* %arrayidx2, align 4
%add = fadd fast float %0, %1
%arrayidx4 = getelementptr inbounds float, float* %aa, i64 %indvars.iv
store float %add, float* %arrayidx4, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond = icmp ne i64 %indvars.iv.next, %wide.trip.count
br i1 %exitcond, label %for.body, label %for.end.loopexit
for.end.loopexit: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry
ret void
}
define dso_local signext i32 @f2(float* noalias %A, float* noalias %B, i32 signext %n) {
; CHECK-LABEL: @f2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp sgt i32 [[N:%.*]], 1
; CHECK-NEXT: br i1 [[CMP1]], label [[ITER_CHECK:%.*]], label [[FOR_END:%.*]]
; CHECK: iter.check:
; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[N]], -1
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[TMP0]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[WIDE_TRIP_COUNT]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_SCEVCHECK:%.*]]
; CHECK: vector.scevcheck:
; CHECK-NEXT: [[TMP1:%.*]] = add nsw i64 [[WIDE_TRIP_COUNT]], -1
; CHECK-NEXT: [[TMP2:%.*]] = trunc i64 [[TMP1]] to i32
; CHECK-NEXT: [[MUL:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 1, i32 [[TMP2]])
; CHECK-NEXT: [[MUL_RESULT:%.*]] = extractvalue { i32, i1 } [[MUL]], 0
; CHECK-NEXT: [[MUL_OVERFLOW:%.*]] = extractvalue { i32, i1 } [[MUL]], 1
; CHECK-NEXT: [[TMP3:%.*]] = sub i32 [[TMP0]], [[MUL_RESULT]]
; CHECK-NEXT: [[TMP4:%.*]] = icmp sgt i32 [[TMP3]], [[TMP0]]
; CHECK-NEXT: [[TMP5:%.*]] = or i1 [[TMP4]], [[MUL_OVERFLOW]]
; CHECK-NEXT: [[TMP6:%.*]] = icmp ugt i64 [[TMP1]], 4294967295
; CHECK-NEXT: [[TMP7:%.*]] = or i1 [[TMP5]], [[TMP6]]
; CHECK-NEXT: br i1 [[TMP7]], label [[VEC_EPILOG_SCALAR_PH]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]]
; CHECK: vector.main.loop.iter.check:
; CHECK-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[WIDE_TRIP_COUNT]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[WIDE_TRIP_COUNT]], 4
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_MOD_VF]]
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = trunc i64 [[INDEX]] to i32
; CHECK-NEXT: [[TMP8:%.*]] = add i32 [[OFFSET_IDX]], 0
; CHECK-NEXT: [[TMP9:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP10:%.*]] = xor i32 [[TMP8]], -1
; CHECK-NEXT: [[TMP11:%.*]] = add i32 [[TMP10]], [[N]]
; CHECK-NEXT: [[TMP12:%.*]] = sext i32 [[TMP11]] to i64
; CHECK-NEXT: [[TMP13:%.*]] = getelementptr inbounds float, float* [[B:%.*]], i64 [[TMP12]]
; CHECK-NEXT: [[TMP14:%.*]] = getelementptr inbounds float, float* [[TMP13]], i32 0
; CHECK-NEXT: [[TMP15:%.*]] = getelementptr inbounds float, float* [[TMP14]], i32 -3
; CHECK-NEXT: [[TMP16:%.*]] = bitcast float* [[TMP15]] to <4 x float>*
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x float>, <4 x float>* [[TMP16]], align 4
; CHECK-NEXT: [[REVERSE:%.*]] = shufflevector <4 x float> [[WIDE_LOAD]], <4 x float> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0>
; CHECK-NEXT: [[TMP17:%.*]] = fadd fast <4 x float> [[REVERSE]], <float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00>
; CHECK-NEXT: [[TMP18:%.*]] = getelementptr inbounds float, float* [[A:%.*]], i64 [[TMP9]]
; CHECK-NEXT: [[TMP19:%.*]] = getelementptr inbounds float, float* [[TMP18]], i32 0
; CHECK-NEXT: [[TMP20:%.*]] = bitcast float* [[TMP19]] to <4 x float>*
; CHECK-NEXT: store <4 x float> [[TMP17]], <4 x float>* [[TMP20]], align 4
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT: [[TMP21:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP21]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END_LOOPEXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]]
; CHECK: vec.epilog.iter.check:
; CHECK-NEXT: [[IND_END5:%.*]] = trunc i64 [[N_VEC]] to i32
; CHECK-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_VEC]]
; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 4
; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]]
; CHECK: vec.epilog.ph:
; CHECK-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
; CHECK-NEXT: [[N_MOD_VF2:%.*]] = urem i64 [[WIDE_TRIP_COUNT]], 4
; CHECK-NEXT: [[N_VEC3:%.*]] = sub i64 [[WIDE_TRIP_COUNT]], [[N_MOD_VF2]]
; CHECK-NEXT: [[IND_END:%.*]] = trunc i64 [[N_VEC3]] to i32
; CHECK-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]]
; CHECK: vec.epilog.vector.body:
; CHECK-NEXT: [[OFFSET_IDX9:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT12:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
; CHECK-NEXT: [[OFFSET_IDX8:%.*]] = trunc i64 [[OFFSET_IDX9]] to i32
; CHECK-NEXT: [[TMP22:%.*]] = add i32 [[OFFSET_IDX8]], 0
; CHECK-NEXT: [[TMP23:%.*]] = add i64 [[OFFSET_IDX9]], 0
; CHECK-NEXT: [[TMP24:%.*]] = xor i32 [[TMP22]], -1
; CHECK-NEXT: [[TMP25:%.*]] = add i32 [[TMP24]], [[N]]
; CHECK-NEXT: [[TMP26:%.*]] = sext i32 [[TMP25]] to i64
; CHECK-NEXT: [[TMP27:%.*]] = getelementptr inbounds float, float* [[B]], i64 [[TMP26]]
; CHECK-NEXT: [[TMP28:%.*]] = getelementptr inbounds float, float* [[TMP27]], i32 0
; CHECK-NEXT: [[TMP29:%.*]] = getelementptr inbounds float, float* [[TMP28]], i32 -3
; CHECK-NEXT: [[TMP30:%.*]] = bitcast float* [[TMP29]] to <4 x float>*
; CHECK-NEXT: [[WIDE_LOAD10:%.*]] = load <4 x float>, <4 x float>* [[TMP30]], align 4
; CHECK-NEXT: [[REVERSE11:%.*]] = shufflevector <4 x float> [[WIDE_LOAD10]], <4 x float> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0>
; CHECK-NEXT: [[TMP31:%.*]] = fadd fast <4 x float> [[REVERSE11]], <float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00>
; CHECK-NEXT: [[TMP32:%.*]] = getelementptr inbounds float, float* [[A]], i64 [[TMP23]]
; CHECK-NEXT: [[TMP33:%.*]] = getelementptr inbounds float, float* [[TMP32]], i32 0
; CHECK-NEXT: [[TMP34:%.*]] = bitcast float* [[TMP33]] to <4 x float>*
; CHECK-NEXT: store <4 x float> [[TMP31]], <4 x float>* [[TMP34]], align 4
; CHECK-NEXT: [[INDEX_NEXT12]] = add nuw i64 [[OFFSET_IDX9]], 4
; CHECK-NEXT: [[TMP35:%.*]] = icmp eq i64 [[INDEX_NEXT12]], [[N_VEC3]]
; CHECK-NEXT: br i1 [[TMP35]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; CHECK: vec.epilog.middle.block:
; CHECK-NEXT: [[CMP_N6:%.*]] = icmp eq i64 [[WIDE_TRIP_COUNT]], [[N_VEC3]]
; CHECK-NEXT: br i1 [[CMP_N6]], label [[FOR_END_LOOPEXIT]], label [[VEC_EPILOG_SCALAR_PH]]
; CHECK: vec.epilog.scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC3]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_SCEVCHECK]] ], [ 0, [[ITER_CHECK]] ]
; CHECK-NEXT: [[BC_RESUME_VAL4:%.*]] = phi i32 [ [[IND_END]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[IND_END5]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_SCEVCHECK]] ], [ 0, [[ITER_CHECK]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[I_014:%.*]] = phi i32 [ [[BC_RESUME_VAL4]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[INC:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[TMP36:%.*]] = xor i32 [[I_014]], -1
; CHECK-NEXT: [[SUB2:%.*]] = add i32 [[TMP36]], [[N]]
; CHECK-NEXT: [[IDXPROM:%.*]] = sext i32 [[SUB2]] to i64
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, float* [[B]], i64 [[IDXPROM]]
; CHECK-NEXT: [[TMP37:%.*]] = load float, float* [[ARRAYIDX]], align 4
; CHECK-NEXT: [[CONV3:%.*]] = fadd fast float [[TMP37]], 1.000000e+00
; CHECK-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds float, float* [[A]], i64 [[INDVARS_IV]]
; CHECK-NEXT: store float [[CONV3]], float* [[ARRAYIDX5]], align 4
; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_014]], 1
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT]], !llvm.loop [[LOOP7:![0-9]+]]
; CHECK: for.end.loopexit:
; CHECK-NEXT: br label [[FOR_END]]
; CHECK: for.end:
; CHECK-NEXT: ret i32 0
;
; CHECK-PROFITABLE-BY-DEFAULT-LABEL: @f2(
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: entry:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[CMP1:%.*]] = icmp sgt i32 [[N:%.*]], 1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[CMP1]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: for.body.preheader:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP0:%.*]] = add i32 [[N]], -1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[TMP0]] to i64
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[FOR_BODY:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: for.body:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[I_014:%.*]] = phi i32 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INC:%.*]], [[FOR_BODY]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP1:%.*]] = xor i32 [[I_014]], -1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[SUB2:%.*]] = add i32 [[TMP1]], [[N]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IDXPROM:%.*]] = sext i32 [[SUB2]] to i64
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, float* [[B:%.*]], i64 [[IDXPROM]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP2:%.*]] = load float, float* [[ARRAYIDX]], align 4
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[CONV3:%.*]] = fadd fast float [[TMP2]], 1.000000e+00
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds float, float* [[A:%.*]], i64 [[INDVARS_IV]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store float [[CONV3]], float* [[ARRAYIDX5]], align 4
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INC]] = add nuw nsw i32 [[I_014]], 1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: for.end.loopexit:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[FOR_END]]
; CHECK-PROFITABLE-BY-DEFAULT: for.end:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: ret i32 0
;
entry:
%cmp1 = icmp sgt i32 %n, 1
br i1 %cmp1, label %for.body.preheader, label %for.end
for.body.preheader: ; preds = %entry
%0 = add i32 %n, -1
%wide.trip.count = zext i32 %0 to i64
br label %for.body
for.body: ; preds = %for.body.preheader, %for.body
%indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
%i.014 = phi i32 [ 0, %for.body.preheader ], [ %inc, %for.body ]
%1 = xor i32 %i.014, -1
%sub2 = add i32 %1, %n
%idxprom = sext i32 %sub2 to i64
%arrayidx = getelementptr inbounds float, float* %B, i64 %idxprom
%2 = load float, float* %arrayidx, align 4
%conv3 = fadd fast float %2, 1.000000e+00
%arrayidx5 = getelementptr inbounds float, float* %A, i64 %indvars.iv
store float %conv3, float* %arrayidx5, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%inc = add nuw nsw i32 %i.014, 1
%exitcond = icmp ne i64 %indvars.iv.next, %wide.trip.count
br i1 %exitcond, label %for.body, label %for.end.loopexit
for.end.loopexit: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry
ret i32 0
}
define void @f3(i8* noalias %A, i64 %n) {
; CHECK-LABEL: @f3(
; CHECK-NEXT: iter.check:
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N:%.*]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]]
; CHECK: vector.main.loop.iter.check:
; CHECK-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[N]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i8, i8* [[A:%.*]], i64 [[TMP0]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i8, i8* [[TMP1]], i32 0
; CHECK-NEXT: [[TMP3:%.*]] = bitcast i8* [[TMP2]] to <4 x i8>*
; CHECK-NEXT: store <4 x i8> <i8 1, i8 1, i8 1, i8 1>, <4 x i8>* [[TMP3]], align 1
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT: [[TMP4:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP4]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END_LOOPEXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]]
; CHECK: vec.epilog.iter.check:
; CHECK-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 [[N]], [[N_VEC]]
; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 4
; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]]
; CHECK: vec.epilog.ph:
; CHECK-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
; CHECK-NEXT: [[N_MOD_VF2:%.*]] = urem i64 [[N]], 4
; CHECK-NEXT: [[N_VEC3:%.*]] = sub i64 [[N]], [[N_MOD_VF2]]
; CHECK-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]]
; CHECK: vec.epilog.vector.body:
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT6:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP5:%.*]] = add i64 [[OFFSET_IDX]], 0
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i8, i8* [[A]], i64 [[TMP5]]
; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i8, i8* [[TMP6]], i32 0
; CHECK-NEXT: [[TMP8:%.*]] = bitcast i8* [[TMP7]] to <4 x i8>*
; CHECK-NEXT: store <4 x i8> <i8 1, i8 1, i8 1, i8 1>, <4 x i8>* [[TMP8]], align 1
; CHECK-NEXT: [[INDEX_NEXT6]] = add nuw i64 [[OFFSET_IDX]], 4
; CHECK-NEXT: [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT6]], [[N_VEC3]]
; CHECK-NEXT: br i1 [[TMP9]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
; CHECK: vec.epilog.middle.block:
; CHECK-NEXT: [[CMP_N4:%.*]] = icmp eq i64 [[N]], [[N_VEC3]]
; CHECK-NEXT: br i1 [[CMP_N4]], label [[FOR_END_LOOPEXIT]], label [[VEC_EPILOG_SCALAR_PH]]
; CHECK: vec.epilog.scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC3]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[ITER_CHECK:%.*]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, i8* [[A]], i64 [[IV]]
; CHECK-NEXT: store i8 1, i8* [[ARRAYIDX]], align 1
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[IV_NEXT]], [[N]]
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT]], !llvm.loop [[LOOP10:![0-9]+]]
; CHECK: for.end.loopexit:
; CHECK-NEXT: br label [[FOR_END:%.*]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
; CHECK-PROFITABLE-BY-DEFAULT-LABEL: @f3(
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: iter.check:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N:%.*]], 2
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: vector.main.loop.iter.check:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 [[N]], 4
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: vector.ph:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 4
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: vector.body:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP1:%.*]] = getelementptr inbounds i8, i8* [[A:%.*]], i64 [[TMP0]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP2:%.*]] = getelementptr inbounds i8, i8* [[TMP1]], i32 0
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP3:%.*]] = bitcast i8* [[TMP2]] to <4 x i8>*
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store <4 x i8> <i8 1, i8 1, i8 1, i8 1>, <4 x i8>* [[TMP3]], align 1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP4:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[TMP4]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK-PROFITABLE-BY-DEFAULT: middle.block:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[CMP_N]], label [[FOR_END_LOOPEXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.iter.check:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 [[N]], [[N_VEC]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 2
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]]
; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.ph:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_MOD_VF2:%.*]] = urem i64 [[N]], 2
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[N_VEC3:%.*]] = sub i64 [[N]], [[N_MOD_VF2]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.vector.body:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[OFFSET_IDX:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT6:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP5:%.*]] = add i64 [[OFFSET_IDX]], 0
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP6:%.*]] = getelementptr inbounds i8, i8* [[A]], i64 [[TMP5]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP7:%.*]] = getelementptr inbounds i8, i8* [[TMP6]], i32 0
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP8:%.*]] = bitcast i8* [[TMP7]] to <2 x i8>*
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store <2 x i8> <i8 1, i8 1>, <2 x i8>* [[TMP8]], align 1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX_NEXT6]] = add nuw i64 [[OFFSET_IDX]], 2
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT6]], [[N_VEC3]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[TMP9]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]]
; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.middle.block:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[CMP_N4:%.*]] = icmp eq i64 [[N]], [[N_VEC3]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[CMP_N4]], label [[FOR_END_LOOPEXIT]], label [[VEC_EPILOG_SCALAR_PH]]
; CHECK-PROFITABLE-BY-DEFAULT: vec.epilog.scalar.ph:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC3]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[ITER_CHECK:%.*]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[FOR_BODY:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: for.body:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, i8* [[A]], i64 [[IV]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store i8 1, i8* [[ARRAYIDX]], align 1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[IV_NEXT]], [[N]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT]], !llvm.loop [[LOOP4:![0-9]+]]
; CHECK-PROFITABLE-BY-DEFAULT: for.end.loopexit:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[FOR_END:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: for.end:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: ret void
;
entry:
br label %for.body
for.body: ; preds = %for.body.preheader, %for.body
%iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
%arrayidx = getelementptr inbounds i8, i8* %A, i64 %iv
store i8 1, i8* %arrayidx, align 1
%iv.next = add nuw nsw i64 %iv, 1
%exitcond = icmp ne i64 %iv.next, %n
br i1 %exitcond, label %for.body, label %for.end.loopexit
for.end.loopexit: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry
ret void
}
; Test case for PR54745.
define void @induction_resume_value_requires_non_trivial_scev_expansion(i8* %dst) {
; CHECK-LABEL: @induction_resume_value_requires_non_trivial_scev_expansion(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[OUTER_HEADER:%.*]]
; CHECK: outer.header:
; CHECK-NEXT: [[INDUCTION_IV:%.*]] = phi i8 [ [[INDUCTION_IV_NEXT:%.*]], [[OUTER_LATCH:%.*]] ], [ -56, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[INDVAR:%.*]] = phi i8 [ [[INDVAR_NEXT:%.*]], [[OUTER_LATCH]] ], [ 0, [[ENTRY]] ]
; CHECK-NEXT: [[OUTER_IV:%.*]] = phi i64 [ 2, [[ENTRY]] ], [ [[OUTER_IV_NEXT:%.*]], [[OUTER_LATCH]] ]
; CHECK-NEXT: [[P2:%.*]] = phi i32 [ -202, [[ENTRY]] ], [ [[ADD:%.*]], [[OUTER_LATCH]] ]
; CHECK-NEXT: [[TMP0:%.*]] = mul i8 [[INDVAR]], -1
; CHECK-NEXT: [[TMP1:%.*]] = add i8 [[TMP0]], -3
; CHECK-NEXT: [[TRUNC_IV:%.*]] = trunc i64 [[OUTER_IV]] to i32
; CHECK-NEXT: [[ADD]] = add i32 [[P2]], [[TRUNC_IV]]
; CHECK-NEXT: [[TRUNC_ADD:%.*]] = trunc i32 [[ADD]] to i8
; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[IND_END:%.*]] = mul i8 84, [[INDUCTION_IV]]
; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <4 x i8> poison, i8 [[INDUCTION_IV]], i32 0
; CHECK-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x i8> [[DOTSPLATINSERT]], <4 x i8> poison, <4 x i32> zeroinitializer
; CHECK-NEXT: [[TMP2:%.*]] = mul <4 x i8> <i8 0, i8 1, i8 2, i8 3>, [[DOTSPLAT]]
; CHECK-NEXT: [[INDUCTION:%.*]] = add <4 x i8> zeroinitializer, [[TMP2]]
; CHECK-NEXT: [[TMP3:%.*]] = mul i8 [[INDUCTION_IV]], 4
; CHECK-NEXT: [[DOTSPLATINSERT2:%.*]] = insertelement <4 x i8> poison, i8 [[TMP3]], i32 0
; CHECK-NEXT: [[DOTSPLAT3:%.*]] = shufflevector <4 x i8> [[DOTSPLATINSERT2]], <4 x i8> poison, <4 x i32> zeroinitializer
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_IND:%.*]] = phi <4 x i8> [ [[INDUCTION]], [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = add i64 1, [[INDEX]]
; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[OFFSET_IDX]], 0
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i8, i8* [[DST:%.*]], i64 [[TMP4]]
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i8, i8* [[TMP5]], i32 0
; CHECK-NEXT: [[TMP7:%.*]] = bitcast i8* [[TMP6]] to <4 x i8>*
; CHECK-NEXT: store <4 x i8> [[VEC_IND]], <4 x i8>* [[TMP7]], align 1
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT: [[VEC_IND_NEXT]] = add <4 x i8> [[VEC_IND]], [[DOTSPLAT3]]
; CHECK-NEXT: [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], 84
; CHECK-NEXT: br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 84, 84
; CHECK-NEXT: br i1 [[CMP_N]], label [[OUTER_LATCH]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 85, [[MIDDLE_BLOCK]] ], [ 1, [[OUTER_HEADER]] ]
; CHECK-NEXT: [[BC_RESUME_VAL1:%.*]] = phi i8 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ 0, [[OUTER_HEADER]] ]
; CHECK-NEXT: br label [[INNER:%.*]]
; CHECK: inner:
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[INNER]] ]
; CHECK-NEXT: [[IV_2:%.*]] = phi i8 [ [[BC_RESUME_VAL1]], [[SCALAR_PH]] ], [ [[IV_2_NEXT:%.*]], [[INNER]] ]
; CHECK-NEXT: [[IV_2_NEXT]] = sub i8 [[IV_2]], [[TRUNC_ADD]]
; CHECK-NEXT: [[GEP_DST:%.*]] = getelementptr inbounds i8, i8* [[DST]], i64 [[IV]]
; CHECK-NEXT: store i8 [[IV_2]], i8* [[GEP_DST]], align 1
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; CHECK-NEXT: [[EC:%.*]] = icmp ugt i64 [[IV]], 83
; CHECK-NEXT: br i1 [[EC]], label [[OUTER_LATCH]], label [[INNER]], !llvm.loop [[LOOP12:![0-9]+]]
; CHECK: outer.latch:
; CHECK-NEXT: [[OUTER_IV_NEXT]] = add nuw nsw i64 [[OUTER_IV]], 1
; CHECK-NEXT: [[INDVAR_NEXT]] = add i8 [[INDVAR]], 1
; CHECK-NEXT: [[INDUCTION_IV_NEXT]] = add i8 [[INDUCTION_IV]], [[TMP1]]
; CHECK-NEXT: br label [[OUTER_HEADER]]
;
; CHECK-PROFITABLE-BY-DEFAULT-LABEL: @induction_resume_value_requires_non_trivial_scev_expansion(
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: entry:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[OUTER_HEADER:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: outer.header:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDUCTION_IV:%.*]] = phi i8 [ [[INDUCTION_IV_NEXT:%.*]], [[OUTER_LATCH:%.*]] ], [ -56, [[ENTRY:%.*]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDVAR:%.*]] = phi i8 [ [[INDVAR_NEXT:%.*]], [[OUTER_LATCH]] ], [ 0, [[ENTRY]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[OUTER_IV:%.*]] = phi i64 [ 2, [[ENTRY]] ], [ [[OUTER_IV_NEXT:%.*]], [[OUTER_LATCH]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[P2:%.*]] = phi i32 [ -202, [[ENTRY]] ], [ [[ADD:%.*]], [[OUTER_LATCH]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP0:%.*]] = mul i8 [[INDVAR]], -1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP1:%.*]] = add i8 [[TMP0]], -3
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TRUNC_IV:%.*]] = trunc i64 [[OUTER_IV]] to i32
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[ADD]] = add i32 [[P2]], [[TRUNC_IV]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TRUNC_ADD:%.*]] = trunc i32 [[ADD]] to i8
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: vector.ph:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IND_END:%.*]] = mul i8 84, [[INDUCTION_IV]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <4 x i8> poison, i8 [[INDUCTION_IV]], i32 0
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x i8> [[DOTSPLATINSERT]], <4 x i8> poison, <4 x i32> zeroinitializer
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP2:%.*]] = mul <4 x i8> <i8 0, i8 1, i8 2, i8 3>, [[DOTSPLAT]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDUCTION:%.*]] = add <4 x i8> zeroinitializer, [[TMP2]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP3:%.*]] = mul i8 [[INDUCTION_IV]], 4
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLATINSERT2:%.*]] = insertelement <4 x i8> poison, i8 [[TMP3]], i32 0
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[DOTSPLAT3:%.*]] = shufflevector <4 x i8> [[DOTSPLATINSERT2]], <4 x i8> poison, <4 x i32> zeroinitializer
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: vector.body:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[VEC_IND:%.*]] = phi <4 x i8> [ [[INDUCTION]], [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[OFFSET_IDX:%.*]] = add i64 1, [[INDEX]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP4:%.*]] = add i64 [[OFFSET_IDX]], 0
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP5:%.*]] = getelementptr inbounds i8, i8* [[DST:%.*]], i64 [[TMP4]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP6:%.*]] = getelementptr inbounds i8, i8* [[TMP5]], i32 0
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP7:%.*]] = bitcast i8* [[TMP6]] to <4 x i8>*
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store <4 x i8> [[VEC_IND]], <4 x i8>* [[TMP7]], align 1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[VEC_IND_NEXT]] = add <4 x i8> [[VEC_IND]], [[DOTSPLAT3]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], 84
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
; CHECK-PROFITABLE-BY-DEFAULT: middle.block:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[CMP_N:%.*]] = icmp eq i64 84, 84
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[CMP_N]], label [[OUTER_LATCH]], label [[SCALAR_PH]]
; CHECK-PROFITABLE-BY-DEFAULT: scalar.ph:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 85, [[MIDDLE_BLOCK]] ], [ 1, [[OUTER_HEADER]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[BC_RESUME_VAL1:%.*]] = phi i8 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ 0, [[OUTER_HEADER]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[INNER:%.*]]
; CHECK-PROFITABLE-BY-DEFAULT: inner:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[INNER]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV_2:%.*]] = phi i8 [ [[BC_RESUME_VAL1]], [[SCALAR_PH]] ], [ [[IV_2_NEXT:%.*]], [[INNER]] ]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV_2_NEXT]] = sub i8 [[IV_2]], [[TRUNC_ADD]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[GEP_DST:%.*]] = getelementptr inbounds i8, i8* [[DST]], i64 [[IV]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: store i8 [[IV_2]], i8* [[GEP_DST]], align 1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[EC:%.*]] = icmp ugt i64 [[IV]], 83
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br i1 [[EC]], label [[OUTER_LATCH]], label [[INNER]], !llvm.loop [[LOOP6:![0-9]+]]
; CHECK-PROFITABLE-BY-DEFAULT: outer.latch:
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[OUTER_IV_NEXT]] = add nuw nsw i64 [[OUTER_IV]], 1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDVAR_NEXT]] = add i8 [[INDVAR]], 1
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: [[INDUCTION_IV_NEXT]] = add i8 [[INDUCTION_IV]], [[TMP1]]
; CHECK-PROFITABLE-BY-DEFAULT-NEXT: br label [[OUTER_HEADER]]
;
entry:
br label %outer.header
outer.header:
%outer.iv = phi i64 [ 2, %entry ], [ %outer.iv.next, %outer.latch ]
%p2 = phi i32 [ -202, %entry ], [ %add, %outer.latch ]
%trunc.iv = trunc i64 %outer.iv to i32
%add = add i32 %p2, %trunc.iv
%trunc.add = trunc i32 %add to i8
br label %inner
inner:
%iv = phi i64 [ 1, %outer.header ], [ %iv.next, %inner ]
%iv.2 = phi i8 [ 0, %outer.header ], [ %iv.2.next, %inner ]
%iv.2.next = sub i8 %iv.2, %trunc.add
%gep.dst = getelementptr inbounds i8, i8* %dst, i64 %iv
store i8 %iv.2, i8* %gep.dst
%iv.next = add nuw nsw i64 %iv, 1
%ec = icmp ugt i64 %iv, 83
br i1 %ec, label %outer.latch, label %inner
outer.latch:
%outer.iv.next = add nuw nsw i64 %outer.iv, 1
br label %outer.header
}