| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 5 |
| ; RUN: opt -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=8 -epilogue-vectorization-force-VF=4 -S < %s | FileCheck %s |
| |
| define i64 @select_icmp_const(ptr %a, i64 %n) { |
| ; CHECK-LABEL: define i64 @select_icmp_const( |
| ; CHECK-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) { |
| ; 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]], 8 |
| ; 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]], 8 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] |
| ; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] |
| ; CHECK: [[VECTOR_BODY]]: |
| ; CHECK-NEXT: [[TMP0:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_IND:%.*]] = phi <8 x i64> [ <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <8 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP2:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP0]] |
| ; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <8 x i64>, ptr [[TMP1]], align 8 |
| ; CHECK-NEXT: [[TMP3:%.*]] = icmp eq <8 x i64> [[WIDE_LOAD]], splat (i64 3) |
| ; CHECK-NEXT: [[TMP2]] = select <8 x i1> [[TMP3]], <8 x i64> [[VEC_IND]], <8 x i64> [[VEC_PHI]] |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[TMP0]], 8 |
| ; CHECK-NEXT: [[VEC_IND_NEXT]] = add nuw nsw <8 x i64> [[VEC_IND]], splat (i64 8) |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP5]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] |
| ; CHECK: [[MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.vector.reduce.smax.v8i64(<8 x i64> [[TMP2]]) |
| ; CHECK-NEXT: [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP6]], -9223372036854775808 |
| ; CHECK-NEXT: [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP6]], i64 3 |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[VEC_EPILOG_ITER_CHECK:.*]] |
| ; CHECK: [[VEC_EPILOG_ITER_CHECK]]: |
| ; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_MOD_VF]], 4 |
| ; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label %[[VEC_EPILOG_SCALAR_PH]], label %[[VEC_EPILOG_PH]], !prof [[PROF3:![0-9]+]] |
| ; CHECK: [[VEC_EPILOG_PH]]: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-NEXT: [[BC_MERGE_RDX1:%.*]] = phi i64 [ [[RDX_SELECT]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 3, %[[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-NEXT: [[TMP14:%.*]] = icmp eq i64 [[BC_MERGE_RDX1]], 3 |
| ; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = select i1 [[TMP14]], i64 -9223372036854775808, i64 [[BC_MERGE_RDX1]] |
| ; CHECK-NEXT: [[N_MOD_VF2:%.*]] = urem i64 [[N]], 4 |
| ; CHECK-NEXT: [[N_VEC3:%.*]] = sub i64 [[N]], [[N_MOD_VF2]] |
| ; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[BC_MERGE_RDX]], i64 0 |
| ; CHECK-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x i64> [[DOTSPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[DOTSPLATINSERT8:%.*]] = insertelement <4 x i64> poison, i64 [[BC_RESUME_VAL]], i64 0 |
| ; CHECK-NEXT: [[DOTSPLAT9:%.*]] = shufflevector <4 x i64> [[DOTSPLATINSERT8]], <4 x i64> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[INDUCTION:%.*]] = add nuw nsw <4 x i64> [[DOTSPLAT9]], <i64 0, i64 1, i64 2, i64 3> |
| ; CHECK-NEXT: br label %[[VEC_EPILOG_VECTOR_BODY:.*]] |
| ; CHECK: [[VEC_EPILOG_VECTOR_BODY]]: |
| ; CHECK-NEXT: [[TMP7:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT9:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_IND5:%.*]] = phi <4 x i64> [ [[INDUCTION]], %[[VEC_EPILOG_PH]] ], [ [[VEC_IND_NEXT11:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI7:%.*]] = phi <4 x i64> [ [[DOTSPLAT]], %[[VEC_EPILOG_PH]] ], [ [[TMP11:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[TMP7]] |
| ; CHECK-NEXT: [[WIDE_LOAD8:%.*]] = load <4 x i64>, ptr [[TMP8]], align 8 |
| ; CHECK-NEXT: [[TMP10:%.*]] = icmp eq <4 x i64> [[WIDE_LOAD8]], splat (i64 3) |
| ; CHECK-NEXT: [[TMP11]] = select <4 x i1> [[TMP10]], <4 x i64> [[VEC_IND5]], <4 x i64> [[VEC_PHI7]] |
| ; CHECK-NEXT: [[INDEX_NEXT9]] = add nuw i64 [[TMP7]], 4 |
| ; CHECK-NEXT: [[VEC_IND_NEXT11]] = add nuw nsw <4 x i64> [[VEC_IND5]], splat (i64 4) |
| ; CHECK-NEXT: [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT9]], [[N_VEC3]] |
| ; CHECK-NEXT: br i1 [[TMP12]], label %[[VEC_EPILOG_MIDDLE_BLOCK:.*]], label %[[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]] |
| ; CHECK: [[VEC_EPILOG_MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[TMP13:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[TMP11]]) |
| ; CHECK-NEXT: [[RDX_SELECT_CMP10:%.*]] = icmp ne i64 [[TMP13]], -9223372036854775808 |
| ; CHECK-NEXT: [[RDX_SELECT11:%.*]] = select i1 [[RDX_SELECT_CMP10]], i64 [[TMP13]], i64 3 |
| ; CHECK-NEXT: [[CMP_N12:%.*]] = icmp eq i64 [[N]], [[N_VEC3]] |
| ; CHECK-NEXT: br i1 [[CMP_N12]], label %[[EXIT]], label %[[VEC_EPILOG_SCALAR_PH]] |
| ; CHECK: [[VEC_EPILOG_SCALAR_PH]]: |
| ; CHECK-NEXT: [[BC_RESUME_VAL13:%.*]] = phi i64 [ [[N_VEC3]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[ITER_CHECK]] ] |
| ; CHECK-NEXT: [[BC_MERGE_RDX14:%.*]] = phi i64 [ [[RDX_SELECT11]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[RDX_SELECT]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 3, %[[ITER_CHECK]] ] |
| ; CHECK-NEXT: br label %[[LOOP:.*]] |
| ; CHECK: [[LOOP]]: |
| ; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL13]], %[[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ] |
| ; CHECK-NEXT: [[RDX:%.*]] = phi i64 [ [[BC_MERGE_RDX14]], %[[VEC_EPILOG_SCALAR_PH]] ], [ [[SEL:%.*]], %[[LOOP]] ] |
| ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[IV]] |
| ; CHECK-NEXT: [[L:%.*]] = load i64, ptr [[GEP]], align 8 |
| ; CHECK-NEXT: [[C:%.*]] = icmp eq i64 [[L]], 3 |
| ; CHECK-NEXT: [[SEL]] = select i1 [[C]], i64 [[IV]], i64 [[RDX]] |
| ; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 |
| ; CHECK-NEXT: [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP5:![0-9]+]] |
| ; CHECK: [[EXIT]]: |
| ; CHECK-NEXT: [[SEL_LCSSA:%.*]] = phi i64 [ [[SEL]], %[[LOOP]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_SELECT11]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ] |
| ; CHECK-NEXT: ret i64 [[SEL_LCSSA]] |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %rdx = phi i64 [ 3, %entry ], [ %sel, %loop ] |
| %gep = getelementptr inbounds i64, ptr %a, i64 %iv |
| %l = load i64, ptr %gep, align 8 |
| %c = icmp eq i64 %l, 3 |
| %sel = select i1 %c, i64 %iv, i64 %rdx |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %ec = icmp eq i64 %iv.next, %n |
| br i1 %ec, label %exit, label %loop |
| |
| exit: |
| ret i64 %sel |
| } |
| |
| define i64 @select_fcmp_const_fast(ptr %a, i64 %n) { |
| ; CHECK-LABEL: define i64 @select_fcmp_const_fast( |
| ; CHECK-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) { |
| ; 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]], 8 |
| ; 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]], 8 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] |
| ; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] |
| ; CHECK: [[VECTOR_BODY]]: |
| ; CHECK-NEXT: [[TMP0:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_IND:%.*]] = phi <8 x i64> [ <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <8 x i64> [ splat (i64 -9223372036854775808), %[[VECTOR_PH]] ], [ [[TMP2:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[TMP0]] |
| ; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <8 x float>, ptr [[TMP1]], align 4 |
| ; CHECK-NEXT: [[TMP3:%.*]] = fcmp fast ueq <8 x float> [[WIDE_LOAD]], splat (float 3.000000e+00) |
| ; CHECK-NEXT: [[TMP2]] = select <8 x i1> [[TMP3]], <8 x i64> [[VEC_IND]], <8 x i64> [[VEC_PHI]] |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[TMP0]], 8 |
| ; CHECK-NEXT: [[VEC_IND_NEXT]] = add nuw nsw <8 x i64> [[VEC_IND]], splat (i64 8) |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP5]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]] |
| ; CHECK: [[MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.vector.reduce.smax.v8i64(<8 x i64> [[TMP2]]) |
| ; CHECK-NEXT: [[RDX_SELECT_CMP:%.*]] = icmp ne i64 [[TMP6]], -9223372036854775808 |
| ; CHECK-NEXT: [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i64 [[TMP6]], i64 2 |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[VEC_EPILOG_ITER_CHECK:.*]] |
| ; CHECK: [[VEC_EPILOG_ITER_CHECK]]: |
| ; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_MOD_VF]], 4 |
| ; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label %[[VEC_EPILOG_SCALAR_PH]], label %[[VEC_EPILOG_PH]], !prof [[PROF3]] |
| ; CHECK: [[VEC_EPILOG_PH]]: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-NEXT: [[BC_MERGE_RDX1:%.*]] = phi i64 [ [[RDX_SELECT]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 2, %[[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-NEXT: [[TMP14:%.*]] = icmp eq i64 [[BC_MERGE_RDX1]], 2 |
| ; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = select i1 [[TMP14]], i64 -9223372036854775808, i64 [[BC_MERGE_RDX1]] |
| ; CHECK-NEXT: [[N_MOD_VF2:%.*]] = urem i64 [[N]], 4 |
| ; CHECK-NEXT: [[N_VEC3:%.*]] = sub i64 [[N]], [[N_MOD_VF2]] |
| ; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[BC_MERGE_RDX]], i64 0 |
| ; CHECK-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x i64> [[DOTSPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[DOTSPLATINSERT8:%.*]] = insertelement <4 x i64> poison, i64 [[BC_RESUME_VAL]], i64 0 |
| ; CHECK-NEXT: [[DOTSPLAT9:%.*]] = shufflevector <4 x i64> [[DOTSPLATINSERT8]], <4 x i64> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[INDUCTION:%.*]] = add nuw nsw <4 x i64> [[DOTSPLAT9]], <i64 0, i64 1, i64 2, i64 3> |
| ; CHECK-NEXT: br label %[[VEC_EPILOG_VECTOR_BODY:.*]] |
| ; CHECK: [[VEC_EPILOG_VECTOR_BODY]]: |
| ; CHECK-NEXT: [[TMP7:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT9:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_IND5:%.*]] = phi <4 x i64> [ [[INDUCTION]], %[[VEC_EPILOG_PH]] ], [ [[VEC_IND_NEXT11:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI7:%.*]] = phi <4 x i64> [ [[DOTSPLAT]], %[[VEC_EPILOG_PH]] ], [ [[TMP11:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[TMP7]] |
| ; CHECK-NEXT: [[WIDE_LOAD8:%.*]] = load <4 x float>, ptr [[TMP8]], align 4 |
| ; CHECK-NEXT: [[TMP10:%.*]] = fcmp fast ueq <4 x float> [[WIDE_LOAD8]], splat (float 3.000000e+00) |
| ; CHECK-NEXT: [[TMP11]] = select <4 x i1> [[TMP10]], <4 x i64> [[VEC_IND5]], <4 x i64> [[VEC_PHI7]] |
| ; CHECK-NEXT: [[INDEX_NEXT9]] = add nuw i64 [[TMP7]], 4 |
| ; CHECK-NEXT: [[VEC_IND_NEXT11]] = add nuw nsw <4 x i64> [[VEC_IND5]], splat (i64 4) |
| ; CHECK-NEXT: [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT9]], [[N_VEC3]] |
| ; CHECK-NEXT: br i1 [[TMP12]], label %[[VEC_EPILOG_MIDDLE_BLOCK:.*]], label %[[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]] |
| ; CHECK: [[VEC_EPILOG_MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[TMP13:%.*]] = call i64 @llvm.vector.reduce.smax.v4i64(<4 x i64> [[TMP11]]) |
| ; CHECK-NEXT: [[RDX_SELECT_CMP10:%.*]] = icmp ne i64 [[TMP13]], -9223372036854775808 |
| ; CHECK-NEXT: [[RDX_SELECT11:%.*]] = select i1 [[RDX_SELECT_CMP10]], i64 [[TMP13]], i64 2 |
| ; CHECK-NEXT: [[CMP_N12:%.*]] = icmp eq i64 [[N]], [[N_VEC3]] |
| ; CHECK-NEXT: br i1 [[CMP_N12]], label %[[EXIT]], label %[[VEC_EPILOG_SCALAR_PH]] |
| ; CHECK: [[VEC_EPILOG_SCALAR_PH]]: |
| ; CHECK-NEXT: [[BC_RESUME_VAL13:%.*]] = phi i64 [ [[N_VEC3]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[ITER_CHECK]] ] |
| ; CHECK-NEXT: [[BC_MERGE_RDX14:%.*]] = phi i64 [ [[RDX_SELECT11]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[RDX_SELECT]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 2, %[[ITER_CHECK]] ] |
| ; CHECK-NEXT: br label %[[LOOP:.*]] |
| ; CHECK: [[LOOP]]: |
| ; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL13]], %[[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ] |
| ; CHECK-NEXT: [[RDX:%.*]] = phi i64 [ [[BC_MERGE_RDX14]], %[[VEC_EPILOG_SCALAR_PH]] ], [ [[SEL:%.*]], %[[LOOP]] ] |
| ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[IV]] |
| ; CHECK-NEXT: [[L:%.*]] = load float, ptr [[GEP]], align 4 |
| ; CHECK-NEXT: [[C:%.*]] = fcmp fast ueq float [[L]], 3.000000e+00 |
| ; CHECK-NEXT: [[SEL]] = select i1 [[C]], i64 [[IV]], i64 [[RDX]] |
| ; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 |
| ; CHECK-NEXT: [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP8:![0-9]+]] |
| ; CHECK: [[EXIT]]: |
| ; CHECK-NEXT: [[SEL_LCSSA:%.*]] = phi i64 [ [[SEL]], %[[LOOP]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_SELECT11]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ] |
| ; CHECK-NEXT: ret i64 [[SEL_LCSSA]] |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %rdx = phi i64 [ 2, %entry ], [ %sel, %loop ] |
| %gep = getelementptr inbounds float, ptr %a, i64 %iv |
| %l = load float, ptr %gep, align 4 |
| %c = fcmp fast ueq float %l, 3.0 |
| %sel = select i1 %c, i64 %iv, i64 %rdx |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %ec = icmp eq i64 %iv.next, %n |
| br i1 %ec, label %exit, label %loop |
| |
| exit: |
| ret i64 %sel |
| } |
| |
| define i8 @select_icmp_var_start(ptr %a, i8 %n, i8 %start) { |
| ; CHECK-LABEL: define i8 @select_icmp_var_start( |
| ; CHECK-SAME: ptr [[A:%.*]], i8 [[N:%.*]], i8 [[START:%.*]]) { |
| ; CHECK-NEXT: [[ITER_CHECK:.*]]: |
| ; CHECK-NEXT: [[TMP0:%.*]] = add i8 [[N]], -1 |
| ; CHECK-NEXT: [[TMP1:%.*]] = zext i8 [[TMP0]] to i32 |
| ; CHECK-NEXT: [[TMP2:%.*]] = add nuw nsw i32 [[TMP1]], 1 |
| ; CHECK-NEXT: [[FR:%.*]] = freeze i8 [[START]] |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i32 [[TMP2]], 4 |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK1]], label %[[VEC_EPILOG_SCALAR_PH:.*]], label %[[VECTOR_MAIN_LOOP_ITER_CHECK:.*]] |
| ; CHECK: [[VECTOR_MAIN_LOOP_ITER_CHECK]]: |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK2:%.*]] = icmp ult i32 [[TMP2]], 8 |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK2]], label %[[VEC_EPILOG_PH:.*]], label %[[VECTOR_PH:.*]] |
| ; CHECK: [[VECTOR_PH]]: |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i32 [[TMP2]], 8 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i32 [[TMP2]], [[N_MOD_VF]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = trunc i32 [[N_VEC]] to i8 |
| ; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] |
| ; CHECK: [[VECTOR_BODY]]: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_IND:%.*]] = phi <8 x i8> [ <i8 0, i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <8 x i8> [ splat (i8 -128), %[[VECTOR_PH]] ], [ [[TMP7:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP4:%.*]] = trunc i32 [[INDEX]] to i8 |
| ; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i8, ptr [[A]], i8 [[TMP4]] |
| ; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <8 x i8>, ptr [[TMP5]], align 8 |
| ; CHECK-NEXT: [[TMP6:%.*]] = icmp eq <8 x i8> [[WIDE_LOAD]], splat (i8 3) |
| ; CHECK-NEXT: [[TMP7]] = select <8 x i1> [[TMP6]], <8 x i8> [[VEC_IND]], <8 x i8> [[VEC_PHI]] |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 8 |
| ; CHECK-NEXT: [[VEC_IND_NEXT]] = add nuw nsw <8 x i8> [[VEC_IND]], splat (i8 8) |
| ; CHECK-NEXT: [[TMP9:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP9]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]] |
| ; CHECK: [[MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[TMP10:%.*]] = call i8 @llvm.vector.reduce.smax.v8i8(<8 x i8> [[TMP7]]) |
| ; CHECK-NEXT: [[RDX_SELECT_CMP:%.*]] = icmp ne i8 [[TMP10]], -128 |
| ; CHECK-NEXT: [[RDX_SELECT:%.*]] = select i1 [[RDX_SELECT_CMP]], i8 [[TMP10]], i8 [[FR]] |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i32 [[TMP2]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[VEC_EPILOG_ITER_CHECK:.*]] |
| ; CHECK: [[VEC_EPILOG_ITER_CHECK]]: |
| ; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i32 [[N_MOD_VF]], 4 |
| ; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label %[[VEC_EPILOG_SCALAR_PH]], label %[[VEC_EPILOG_PH]], !prof [[PROF3]] |
| ; CHECK: [[VEC_EPILOG_PH]]: |
| ; CHECK-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i32 [ [[N_VEC]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i8 [ [[TMP3]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i8 [ [[RDX_SELECT]], %[[VEC_EPILOG_ITER_CHECK]] ], [ [[FR]], %[[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-NEXT: [[TMP11:%.*]] = icmp eq i8 [[BC_MERGE_RDX]], [[FR]] |
| ; CHECK-NEXT: [[TMP12:%.*]] = select i1 [[TMP11]], i8 -128, i8 [[BC_MERGE_RDX]] |
| ; CHECK-NEXT: [[N_MOD_VF2:%.*]] = urem i32 [[TMP2]], 4 |
| ; CHECK-NEXT: [[N_VEC3:%.*]] = sub i32 [[TMP2]], [[N_MOD_VF2]] |
| ; CHECK-NEXT: [[TMP13:%.*]] = trunc i32 [[N_VEC3]] to i8 |
| ; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <4 x i8> poison, i8 [[TMP12]], i64 0 |
| ; CHECK-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x i8> [[DOTSPLATINSERT]], <4 x i8> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[DOTSPLATINSERT8:%.*]] = insertelement <4 x i8> poison, i8 [[BC_RESUME_VAL]], i64 0 |
| ; CHECK-NEXT: [[DOTSPLAT9:%.*]] = shufflevector <4 x i8> [[DOTSPLATINSERT8]], <4 x i8> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[INDUCTION:%.*]] = add nuw nsw <4 x i8> [[DOTSPLAT9]], <i8 0, i8 1, i8 2, i8 3> |
| ; CHECK-NEXT: br label %[[VEC_EPILOG_VECTOR_BODY:.*]] |
| ; CHECK: [[VEC_EPILOG_VECTOR_BODY]]: |
| ; CHECK-NEXT: [[INDEX4:%.*]] = phi i32 [ [[VEC_EPILOG_RESUME_VAL]], %[[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT11:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_IND5:%.*]] = phi <4 x i8> [ [[INDUCTION]], %[[VEC_EPILOG_PH]] ], [ [[VEC_IND_NEXT11:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI7:%.*]] = phi <4 x i8> [ [[DOTSPLAT]], %[[VEC_EPILOG_PH]] ], [ [[TMP17:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[OFFSET_IDX:%.*]] = trunc i32 [[INDEX4]] to i8 |
| ; CHECK-NEXT: [[TMP14:%.*]] = getelementptr inbounds i8, ptr [[A]], i8 [[OFFSET_IDX]] |
| ; CHECK-NEXT: [[WIDE_LOAD10:%.*]] = load <4 x i8>, ptr [[TMP14]], align 8 |
| ; CHECK-NEXT: [[TMP16:%.*]] = icmp eq <4 x i8> [[WIDE_LOAD10]], splat (i8 3) |
| ; CHECK-NEXT: [[TMP17]] = select <4 x i1> [[TMP16]], <4 x i8> [[VEC_IND5]], <4 x i8> [[VEC_PHI7]] |
| ; CHECK-NEXT: [[INDEX_NEXT11]] = add nuw i32 [[INDEX4]], 4 |
| ; CHECK-NEXT: [[VEC_IND_NEXT11]] = add nuw nsw <4 x i8> [[VEC_IND5]], splat (i8 4) |
| ; CHECK-NEXT: [[TMP18:%.*]] = icmp eq i32 [[INDEX_NEXT11]], [[N_VEC3]] |
| ; CHECK-NEXT: br i1 [[TMP18]], label %[[VEC_EPILOG_MIDDLE_BLOCK:.*]], label %[[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]] |
| ; CHECK: [[VEC_EPILOG_MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[TMP19:%.*]] = call i8 @llvm.vector.reduce.smax.v4i8(<4 x i8> [[TMP17]]) |
| ; CHECK-NEXT: [[RDX_SELECT_CMP12:%.*]] = icmp ne i8 [[TMP19]], -128 |
| ; CHECK-NEXT: [[RDX_SELECT13:%.*]] = select i1 [[RDX_SELECT_CMP12]], i8 [[TMP19]], i8 [[FR]] |
| ; CHECK-NEXT: [[CMP_N14:%.*]] = icmp eq i32 [[TMP2]], [[N_VEC3]] |
| ; CHECK-NEXT: br i1 [[CMP_N14]], label %[[EXIT]], label %[[VEC_EPILOG_SCALAR_PH]] |
| ; CHECK: [[VEC_EPILOG_SCALAR_PH]]: |
| ; CHECK-NEXT: [[BC_RESUME_VAL13:%.*]] = phi i8 [ [[TMP13]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[TMP3]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[ITER_CHECK]] ] |
| ; CHECK-NEXT: [[BC_MERGE_RDX14:%.*]] = phi i8 [ [[RDX_SELECT13]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[RDX_SELECT]], %[[VEC_EPILOG_ITER_CHECK]] ], [ [[START]], %[[ITER_CHECK]] ] |
| ; CHECK-NEXT: br label %[[LOOP:.*]] |
| ; CHECK: [[LOOP]]: |
| ; CHECK-NEXT: [[IV:%.*]] = phi i8 [ [[BC_RESUME_VAL13]], %[[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ] |
| ; CHECK-NEXT: [[RDX:%.*]] = phi i8 [ [[BC_MERGE_RDX14]], %[[VEC_EPILOG_SCALAR_PH]] ], [ [[SEL:%.*]], %[[LOOP]] ] |
| ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i8, ptr [[A]], i8 [[IV]] |
| ; CHECK-NEXT: [[L:%.*]] = load i8, ptr [[GEP]], align 8 |
| ; CHECK-NEXT: [[C:%.*]] = icmp eq i8 [[L]], 3 |
| ; CHECK-NEXT: [[SEL]] = select i1 [[C]], i8 [[IV]], i8 [[RDX]] |
| ; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i8 [[IV]], 1 |
| ; CHECK-NEXT: [[EC:%.*]] = icmp eq i8 [[IV_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP11:![0-9]+]] |
| ; CHECK: [[EXIT]]: |
| ; CHECK-NEXT: [[SEL_LCSSA:%.*]] = phi i8 [ [[SEL]], %[[LOOP]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ [[RDX_SELECT13]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ] |
| ; CHECK-NEXT: ret i8 [[SEL_LCSSA]] |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i8 [ 0, %entry ], [ %iv.next, %loop ] |
| %rdx = phi i8 [ %start, %entry ], [ %sel, %loop ] |
| %gep = getelementptr inbounds i8, ptr %a, i8 %iv |
| %l = load i8, ptr %gep, align 8 |
| %c = icmp eq i8 %l, 3 |
| %sel = select i1 %c, i8 %iv, i8 %rdx |
| %iv.next = add nuw nsw i8 %iv, 1 |
| %ec = icmp eq i8 %iv.next, %n |
| br i1 %ec, label %exit, label %loop |
| |
| exit: |
| ret i8 %sel |
| } |
| |
| define i64 @test_vectorize_select_smin_first_idx(ptr %src, i64 %n) { |
| ; CHECK-LABEL: define i64 @test_vectorize_select_smin_first_idx( |
| ; CHECK-SAME: ptr [[SRC:%.*]], i64 [[N:%.*]]) { |
| ; 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]], 8 |
| ; 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]], 8 |
| ; 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: [[VEC_IND:%.*]] = phi <8 x i64> [ <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <8 x i64> [ poison, %[[VECTOR_PH]] ], [ [[TMP3:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI2:%.*]] = phi <8 x i64> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP2:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP0:%.*]] = getelementptr i64, ptr [[SRC]], i64 [[INDEX]] |
| ; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <8 x i64>, ptr [[TMP0]], align 4 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt <8 x i64> [[VEC_PHI2]], [[WIDE_LOAD]] |
| ; CHECK-NEXT: [[TMP2]] = call <8 x i64> @llvm.smin.v8i64(<8 x i64> [[VEC_PHI2]], <8 x i64> [[WIDE_LOAD]]) |
| ; CHECK-NEXT: [[TMP3]] = select <8 x i1> [[TMP1]], <8 x i64> [[VEC_IND]], <8 x i64> [[VEC_PHI]] |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8 |
| ; CHECK-NEXT: [[VEC_IND_NEXT]] = add nuw nsw <8 x i64> [[VEC_IND]], splat (i64 8) |
| ; CHECK-NEXT: [[TMP4:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP4]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]] |
| ; CHECK: [[MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[TMP5:%.*]] = call i64 @llvm.vector.reduce.smin.v8i64(<8 x i64> [[TMP2]]) |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <8 x i64> poison, i64 [[TMP5]], i64 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <8 x i64> [[BROADCAST_SPLATINSERT]], <8 x i64> poison, <8 x i32> zeroinitializer |
| ; CHECK-NEXT: [[TMP6:%.*]] = icmp eq <8 x i64> [[TMP2]], [[BROADCAST_SPLAT]] |
| ; CHECK-NEXT: [[TMP7:%.*]] = select <8 x i1> [[TMP6]], <8 x i64> [[TMP3]], <8 x i64> splat (i64 -1) |
| ; CHECK-NEXT: [[TMP8:%.*]] = call i64 @llvm.vector.reduce.umin.v8i64(<8 x i64> [[TMP7]]) |
| ; CHECK-NEXT: [[TMP9:%.*]] = icmp eq i64 [[TMP5]], 0 |
| ; CHECK-NEXT: [[TMP10:%.*]] = select i1 [[TMP9]], i64 0, i64 [[TMP8]] |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[VEC_EPILOG_ITER_CHECK:.*]] |
| ; CHECK: [[VEC_EPILOG_ITER_CHECK]]: |
| ; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_MOD_VF]], 4 |
| ; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label %[[VEC_EPILOG_SCALAR_PH]], label %[[VEC_EPILOG_PH]], !prof [[PROF3]] |
| ; CHECK: [[VEC_EPILOG_PH]]: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i64 [ [[TMP10]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-NEXT: [[BC_MERGE_RDX3:%.*]] = phi i64 [ [[TMP5]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-NEXT: [[N_MOD_VF4:%.*]] = urem i64 [[N]], 4 |
| ; CHECK-NEXT: [[N_VEC5:%.*]] = sub i64 [[N]], [[N_MOD_VF4]] |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT6:%.*]] = insertelement <4 x i64> poison, i64 [[BC_MERGE_RDX]], i64 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT7:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT6]], <4 x i64> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT8:%.*]] = insertelement <4 x i64> poison, i64 [[BC_MERGE_RDX3]], i64 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT9:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT8]], <4 x i64> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT10:%.*]] = insertelement <4 x i64> poison, i64 [[BC_RESUME_VAL]], i64 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT11:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT10]], <4 x i64> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[INDUCTION:%.*]] = add nuw nsw <4 x i64> [[BROADCAST_SPLAT11]], <i64 0, i64 1, i64 2, i64 3> |
| ; CHECK-NEXT: br label %[[VEC_EPILOG_VECTOR_BODY:.*]] |
| ; CHECK: [[VEC_EPILOG_VECTOR_BODY]]: |
| ; CHECK-NEXT: [[INDEX12:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT17:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_IND13:%.*]] = phi <4 x i64> [ [[INDUCTION]], %[[VEC_EPILOG_PH]] ], [ [[VEC_IND_NEXT18:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI14:%.*]] = phi <4 x i64> [ [[BROADCAST_SPLAT7]], %[[VEC_EPILOG_PH]] ], [ [[TMP14:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI15:%.*]] = phi <4 x i64> [ [[BROADCAST_SPLAT9]], %[[VEC_EPILOG_PH]] ], [ [[TMP13:%.*]], %[[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP11:%.*]] = getelementptr i64, ptr [[SRC]], i64 [[INDEX12]] |
| ; CHECK-NEXT: [[WIDE_LOAD16:%.*]] = load <4 x i64>, ptr [[TMP11]], align 4 |
| ; CHECK-NEXT: [[TMP12:%.*]] = icmp sgt <4 x i64> [[VEC_PHI15]], [[WIDE_LOAD16]] |
| ; CHECK-NEXT: [[TMP13]] = call <4 x i64> @llvm.smin.v4i64(<4 x i64> [[VEC_PHI15]], <4 x i64> [[WIDE_LOAD16]]) |
| ; CHECK-NEXT: [[TMP14]] = select <4 x i1> [[TMP12]], <4 x i64> [[VEC_IND13]], <4 x i64> [[VEC_PHI14]] |
| ; CHECK-NEXT: [[INDEX_NEXT17]] = add nuw i64 [[INDEX12]], 4 |
| ; CHECK-NEXT: [[VEC_IND_NEXT18]] = add nuw nsw <4 x i64> [[VEC_IND13]], splat (i64 4) |
| ; CHECK-NEXT: [[TMP15:%.*]] = icmp eq i64 [[INDEX_NEXT17]], [[N_VEC5]] |
| ; CHECK-NEXT: br i1 [[TMP15]], label %[[VEC_EPILOG_MIDDLE_BLOCK:.*]], label %[[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP13:![0-9]+]] |
| ; CHECK: [[VEC_EPILOG_MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[TMP16:%.*]] = call i64 @llvm.vector.reduce.smin.v4i64(<4 x i64> [[TMP13]]) |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT19:%.*]] = insertelement <4 x i64> poison, i64 [[TMP16]], i64 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT20:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT19]], <4 x i64> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[TMP17:%.*]] = icmp eq <4 x i64> [[TMP13]], [[BROADCAST_SPLAT20]] |
| ; CHECK-NEXT: [[TMP18:%.*]] = select <4 x i1> [[TMP17]], <4 x i64> [[TMP14]], <4 x i64> splat (i64 -1) |
| ; CHECK-NEXT: [[TMP19:%.*]] = call i64 @llvm.vector.reduce.umin.v4i64(<4 x i64> [[TMP18]]) |
| ; CHECK-NEXT: [[TMP20:%.*]] = icmp eq i64 [[TMP16]], 0 |
| ; CHECK-NEXT: [[TMP21:%.*]] = select i1 [[TMP20]], i64 0, i64 [[TMP19]] |
| ; CHECK-NEXT: [[CMP_N21:%.*]] = icmp eq i64 [[N]], [[N_VEC5]] |
| ; CHECK-NEXT: br i1 [[CMP_N21]], label %[[EXIT]], label %[[VEC_EPILOG_SCALAR_PH]] |
| ; CHECK: [[VEC_EPILOG_SCALAR_PH]]: |
| ; CHECK-NEXT: [[BC_RESUME_VAL22:%.*]] = phi i64 [ [[N_VEC5]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[ITER_CHECK]] ] |
| ; CHECK-NEXT: [[BC_MERGE_RDX23:%.*]] = phi i64 [ [[TMP21]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[TMP10]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[ITER_CHECK]] ] |
| ; CHECK-NEXT: [[BC_MERGE_RDX24:%.*]] = phi i64 [ [[TMP16]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[TMP5]], %[[VEC_EPILOG_ITER_CHECK]] ], [ 0, %[[ITER_CHECK]] ] |
| ; CHECK-NEXT: br label %[[LOOP:.*]] |
| ; CHECK: [[LOOP]]: |
| ; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL22]], %[[VEC_EPILOG_SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ] |
| ; CHECK-NEXT: [[MIN_IDX:%.*]] = phi i64 [ [[BC_MERGE_RDX23]], %[[VEC_EPILOG_SCALAR_PH]] ], [ [[MIN_IDX_NEXT:%.*]], %[[LOOP]] ] |
| ; CHECK-NEXT: [[MIN_VAL:%.*]] = phi i64 [ [[BC_MERGE_RDX24]], %[[VEC_EPILOG_SCALAR_PH]] ], [ [[MIN_VAL_NEXT:%.*]], %[[LOOP]] ] |
| ; CHECK-NEXT: [[GEP:%.*]] = getelementptr i64, ptr [[SRC]], i64 [[IV]] |
| ; CHECK-NEXT: [[L:%.*]] = load i64, ptr [[GEP]], align 4 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i64 [[MIN_VAL]], [[L]] |
| ; CHECK-NEXT: [[MIN_VAL_NEXT]] = tail call i64 @llvm.smin.i64(i64 [[MIN_VAL]], i64 [[L]]) |
| ; CHECK-NEXT: [[MIN_IDX_NEXT]] = select i1 [[CMP]], i64 [[IV]], i64 [[MIN_IDX]] |
| ; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 |
| ; CHECK-NEXT: [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP14:![0-9]+]] |
| ; CHECK: [[EXIT]]: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i64 [ [[MIN_IDX_NEXT]], %[[LOOP]] ], [ [[TMP10]], %[[MIDDLE_BLOCK]] ], [ [[TMP21]], %[[VEC_EPILOG_MIDDLE_BLOCK]] ] |
| ; CHECK-NEXT: ret i64 [[RES]] |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %min.idx = phi i64 [ 0, %entry ], [ %min.idx.next, %loop ] |
| %min.val = phi i64 [ 0, %entry ], [ %min.val.next, %loop ] |
| %gep = getelementptr i64, ptr %src, i64 %iv |
| %l = load i64, ptr %gep |
| %cmp = icmp sgt i64 %min.val, %l |
| %min.val.next = tail call i64 @llvm.smin.i64(i64 %min.val, i64 %l) |
| %min.idx.next = select i1 %cmp, i64 %iv, i64 %min.idx |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %ec = icmp eq i64 %iv.next, %n |
| br i1 %ec, label %exit, label %loop |
| |
| exit: |
| %res = phi i64 [ %min.idx.next, %loop ] |
| ret i64 %res |
| } |
| |
| |
| define i64 @select_argmin_iv_not_canonical(i64 %num, ptr %src) { |
| ; CHECK-LABEL: define i64 @select_argmin_iv_not_canonical( |
| ; CHECK-SAME: i64 [[NUM:%.*]], ptr [[SRC:%.*]]) { |
| ; CHECK-NEXT: [[ENTRY:.*]]: |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[NUM]], 8 |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] |
| ; CHECK: [[VECTOR_PH]]: |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[NUM]], 8 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[NUM]], [[N_MOD_VF]] |
| ; CHECK-NEXT: [[TMP0:%.*]] = add i64 1, [[N_VEC]] |
| ; 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 <8 x i64> [ <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <8 x i64> [ poison, %[[VECTOR_PH]] ], [ [[TMP34:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI1:%.*]] = phi <8 x i8> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP32:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[OFFSET_IDX:%.*]] = add i64 1, [[INDEX]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = add i64 [[OFFSET_IDX]], 1 |
| ; CHECK-NEXT: [[TMP3:%.*]] = add i64 [[OFFSET_IDX]], 2 |
| ; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[OFFSET_IDX]], 3 |
| ; CHECK-NEXT: [[TMP16:%.*]] = add i64 [[OFFSET_IDX]], 4 |
| ; CHECK-NEXT: [[TMP17:%.*]] = add i64 [[OFFSET_IDX]], 5 |
| ; CHECK-NEXT: [[TMP18:%.*]] = add i64 [[OFFSET_IDX]], 6 |
| ; CHECK-NEXT: [[TMP19:%.*]] = add i64 [[OFFSET_IDX]], 7 |
| ; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i64, ptr [[SRC]], i64 [[OFFSET_IDX]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = getelementptr i64, ptr [[SRC]], i64 [[TMP2]] |
| ; CHECK-NEXT: [[TMP7:%.*]] = getelementptr i64, ptr [[SRC]], i64 [[TMP3]] |
| ; CHECK-NEXT: [[TMP8:%.*]] = getelementptr i64, ptr [[SRC]], i64 [[TMP4]] |
| ; CHECK-NEXT: [[TMP35:%.*]] = getelementptr i64, ptr [[SRC]], i64 [[TMP16]] |
| ; CHECK-NEXT: [[TMP13:%.*]] = getelementptr i64, ptr [[SRC]], i64 [[TMP17]] |
| ; CHECK-NEXT: [[TMP14:%.*]] = getelementptr i64, ptr [[SRC]], i64 [[TMP18]] |
| ; CHECK-NEXT: [[TMP15:%.*]] = getelementptr i64, ptr [[SRC]], i64 [[TMP19]] |
| ; CHECK-NEXT: [[TMP9:%.*]] = load i8, ptr [[TMP5]], align 1 |
| ; CHECK-NEXT: [[TMP10:%.*]] = load i8, ptr [[TMP6]], align 1 |
| ; CHECK-NEXT: [[TMP11:%.*]] = load i8, ptr [[TMP7]], align 1 |
| ; CHECK-NEXT: [[TMP12:%.*]] = load i8, ptr [[TMP8]], align 1 |
| ; CHECK-NEXT: [[TMP36:%.*]] = load i8, ptr [[TMP35]], align 1 |
| ; CHECK-NEXT: [[TMP39:%.*]] = load i8, ptr [[TMP13]], align 1 |
| ; CHECK-NEXT: [[TMP22:%.*]] = load i8, ptr [[TMP14]], align 1 |
| ; CHECK-NEXT: [[TMP23:%.*]] = load i8, ptr [[TMP15]], align 1 |
| ; CHECK-NEXT: [[TMP40:%.*]] = insertelement <8 x i8> poison, i8 [[TMP9]], i32 0 |
| ; CHECK-NEXT: [[TMP41:%.*]] = insertelement <8 x i8> [[TMP40]], i8 [[TMP10]], i32 1 |
| ; CHECK-NEXT: [[TMP42:%.*]] = insertelement <8 x i8> [[TMP41]], i8 [[TMP11]], i32 2 |
| ; CHECK-NEXT: [[TMP27:%.*]] = insertelement <8 x i8> [[TMP42]], i8 [[TMP12]], i32 3 |
| ; CHECK-NEXT: [[TMP28:%.*]] = insertelement <8 x i8> [[TMP27]], i8 [[TMP36]], i32 4 |
| ; CHECK-NEXT: [[TMP29:%.*]] = insertelement <8 x i8> [[TMP28]], i8 [[TMP39]], i32 5 |
| ; CHECK-NEXT: [[TMP30:%.*]] = insertelement <8 x i8> [[TMP29]], i8 [[TMP22]], i32 6 |
| ; CHECK-NEXT: [[TMP31:%.*]] = insertelement <8 x i8> [[TMP30]], i8 [[TMP23]], i32 7 |
| ; CHECK-NEXT: [[TMP32]] = call <8 x i8> @llvm.umin.v8i8(<8 x i8> [[TMP31]], <8 x i8> [[VEC_PHI1]]) |
| ; CHECK-NEXT: [[TMP33:%.*]] = icmp ult <8 x i8> [[TMP31]], [[VEC_PHI1]] |
| ; CHECK-NEXT: [[TMP34]] = select <8 x i1> [[TMP33]], <8 x i64> [[VEC_IND]], <8 x i64> [[VEC_PHI]] |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8 |
| ; CHECK-NEXT: [[VEC_IND_NEXT]] = add nuw <8 x i64> [[VEC_IND]], splat (i64 8) |
| ; CHECK-NEXT: [[TMP20:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP20]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP15:![0-9]+]] |
| ; CHECK: [[MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[TMP21:%.*]] = call i8 @llvm.vector.reduce.umin.v8i8(<8 x i8> [[TMP32]]) |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <8 x i8> poison, i8 [[TMP21]], i64 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <8 x i8> [[BROADCAST_SPLATINSERT]], <8 x i8> poison, <8 x i32> zeroinitializer |
| ; CHECK-NEXT: [[TMP37:%.*]] = icmp eq <8 x i8> [[TMP32]], [[BROADCAST_SPLAT]] |
| ; CHECK-NEXT: [[TMP38:%.*]] = select <8 x i1> [[TMP37]], <8 x i64> [[TMP34]], <8 x i64> splat (i64 -1) |
| ; CHECK-NEXT: [[TMP24:%.*]] = call i64 @llvm.vector.reduce.umin.v8i64(<8 x i64> [[TMP38]]) |
| ; CHECK-NEXT: [[DERIVED_IV_RESULT:%.*]] = add i64 1, [[TMP24]] |
| ; CHECK-NEXT: [[TMP25:%.*]] = icmp eq i8 [[TMP21]], 0 |
| ; CHECK-NEXT: [[TMP26:%.*]] = select i1 [[TMP25]], i64 0, i64 [[DERIVED_IV_RESULT]] |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[NUM]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]] |
| ; CHECK: [[SCALAR_PH]]: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[TMP0]], %[[MIDDLE_BLOCK]] ], [ 1, %[[ENTRY]] ] |
| ; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i64 [ [[TMP26]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] |
| ; CHECK-NEXT: [[BC_MERGE_RDX2:%.*]] = phi i8 [ [[TMP21]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] |
| ; CHECK-NEXT: br label %[[LOOP:.*]] |
| ; CHECK: [[LOOP]]: |
| ; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[INC_I:%.*]], %[[LOOP]] ] |
| ; CHECK-NEXT: [[MIN_IDX:%.*]] = phi i64 [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ], [ [[MIN_IDX_NEXT:%.*]], %[[LOOP]] ] |
| ; CHECK-NEXT: [[MIN_VAL:%.*]] = phi i8 [ [[BC_MERGE_RDX2]], %[[SCALAR_PH]] ], [ [[MIN_VAL_NEXT:%.*]], %[[LOOP]] ] |
| ; CHECK-NEXT: [[GEP:%.*]] = getelementptr i64, ptr [[SRC]], i64 [[IV]] |
| ; CHECK-NEXT: [[L:%.*]] = load i8, ptr [[GEP]], align 1 |
| ; CHECK-NEXT: [[MIN_VAL_NEXT]] = tail call i8 @llvm.umin.i8(i8 [[L]], i8 [[MIN_VAL]]) |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[L]], [[MIN_VAL]] |
| ; CHECK-NEXT: [[MIN_IDX_NEXT]] = select i1 [[CMP]], i64 [[IV]], i64 [[MIN_IDX]] |
| ; CHECK-NEXT: [[INC_I]] = add nsw i64 [[IV]], 1 |
| ; CHECK-NEXT: [[EC:%.*]] = icmp eq i64 [[IV]], [[NUM]] |
| ; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP16:![0-9]+]] |
| ; CHECK: [[EXIT]]: |
| ; CHECK-NEXT: [[MIN_IDX_NEXT_LCSSA:%.*]] = phi i64 [ [[MIN_IDX_NEXT]], %[[LOOP]] ], [ [[TMP26]], %[[MIDDLE_BLOCK]] ] |
| ; CHECK-NEXT: ret i64 [[MIN_IDX_NEXT_LCSSA]] |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 1, %entry ], [ %inc.i, %loop ] |
| %min.idx = phi i64 [ 0, %entry ], [ %min.idx.next, %loop ] |
| %min.val = phi i8 [ 0, %entry ], [ %min.val.next, %loop ] |
| %gep = getelementptr i64, ptr %src, i64 %iv |
| %l = load i8, ptr %gep |
| %min.val.next = tail call i8 @llvm.umin.i8(i8 %l, i8 %min.val) |
| %cmp = icmp ult i8 %l, %min.val |
| %min.idx.next = select i1 %cmp, i64 %iv, i64 %min.idx |
| %inc.i = add nsw i64 %iv, 1 |
| %ec = icmp eq i64 %iv, %num |
| br i1 %ec, label %exit, label %loop |
| |
| exit: |
| ret i64 %min.idx.next |
| } |
| |
| ; Epilogue vectorization is not supported for FindIV reductions using the |
| ; AnyOf fallback (no sentinel value available). |
| define i1 @select_icmp_nuw_no_sentinel(ptr %src, i64 %n) { |
| ; CHECK-LABEL: define i1 @select_icmp_nuw_no_sentinel( |
| ; CHECK-SAME: ptr [[SRC:%.*]], i64 [[N:%.*]]) { |
| ; CHECK-NEXT: [[ENTRY:.*]]: |
| ; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[N]], 1 |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP0]], 8 |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] |
| ; CHECK: [[VECTOR_PH]]: |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP0]], 8 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP0]], [[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: [[VEC_IND:%.*]] = phi <8 x i64> [ <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <8 x i64> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP4:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI1:%.*]] = phi <8 x i1> [ zeroinitializer, %[[VECTOR_PH]] ], [ [[TMP3:%.*]], %[[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[SRC]], i64 [[INDEX]] |
| ; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <8 x i8>, ptr [[TMP1]], align 1 |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp eq <8 x i8> [[WIDE_LOAD]], zeroinitializer |
| ; CHECK-NEXT: [[TMP3]] = or <8 x i1> [[VEC_PHI1]], [[TMP2]] |
| ; CHECK-NEXT: [[TMP4]] = select <8 x i1> [[TMP2]], <8 x i64> [[VEC_IND]], <8 x i64> [[VEC_PHI]] |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8 |
| ; CHECK-NEXT: [[VEC_IND_NEXT]] = add nuw <8 x i64> [[VEC_IND]], splat (i64 8) |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP5]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP17:![0-9]+]] |
| ; CHECK: [[MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.vector.reduce.umax.v8i64(<8 x i64> [[TMP4]]) |
| ; CHECK-NEXT: [[TMP7:%.*]] = call i1 @llvm.vector.reduce.or.v8i1(<8 x i1> [[TMP3]]) |
| ; CHECK-NEXT: [[TMP8:%.*]] = freeze i1 [[TMP7]] |
| ; CHECK-NEXT: [[RDX_SELECT:%.*]] = select i1 [[TMP8]], i64 [[TMP6]], i64 0 |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP0]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]] |
| ; CHECK: [[SCALAR_PH]]: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] |
| ; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i64 [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] |
| ; CHECK-NEXT: br label %[[LOOP:.*]] |
| ; CHECK: [[LOOP]]: |
| ; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ] |
| ; CHECK-NEXT: [[RDX:%.*]] = phi i64 [ [[BC_MERGE_RDX]], %[[SCALAR_PH]] ], [ [[SEL:%.*]], %[[LOOP]] ] |
| ; CHECK-NEXT: [[GEP:%.*]] = getelementptr i8, ptr [[SRC]], i64 [[IV]] |
| ; CHECK-NEXT: [[L:%.*]] = load i8, ptr [[GEP]], align 1 |
| ; CHECK-NEXT: [[C:%.*]] = icmp eq i8 [[L]], 0 |
| ; CHECK-NEXT: [[SEL]] = select i1 [[C]], i64 [[IV]], i64 [[RDX]] |
| ; CHECK-NEXT: [[IV_NEXT]] = add nuw i64 [[IV]], 1 |
| ; CHECK-NEXT: [[EC:%.*]] = icmp eq i64 [[IV]], [[N]] |
| ; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP18:![0-9]+]] |
| ; CHECK: [[EXIT]]: |
| ; CHECK-NEXT: [[SEL_LCSSA:%.*]] = phi i64 [ [[SEL]], %[[LOOP]] ], [ [[RDX_SELECT]], %[[MIDDLE_BLOCK]] ] |
| ; CHECK-NEXT: [[RES:%.*]] = icmp eq i64 [[SEL_LCSSA]], 0 |
| ; CHECK-NEXT: ret i1 [[RES]] |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %rdx = phi i64 [ 0, %entry ], [ %sel, %loop ] |
| %gep = getelementptr i8, ptr %src, i64 %iv |
| %l = load i8, ptr %gep, align 1 |
| %c = icmp eq i8 %l, 0 |
| %sel = select i1 %c, i64 %iv, i64 %rdx |
| %iv.next = add nuw i64 %iv, 1 |
| %ec = icmp eq i64 %iv, %n |
| br i1 %ec, label %exit, label %loop |
| |
| exit: |
| %res = icmp eq i64 %sel, 0 |
| ret i1 %res |
| } |
