| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 |
| ; RUN: opt -S < %s -p loop-vectorize -enable-early-exit-vectorization | FileCheck %s --check-prefixes=CHECK |
| |
| target triple = "aarch64-unknown-linux-gnu" |
| |
| declare void @init_mem(ptr, i64); |
| |
| define i64 @same_exit_block_pre_inc_use1() #1 { |
| ; CHECK-LABEL: define i64 @same_exit_block_pre_inc_use1( |
| ; CHECK-SAME: ) #[[ATTR0:[0-9]+]] { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[P1:%.*]] = alloca [1024 x i8], align 4 |
| ; CHECK-NEXT: [[P2:%.*]] = alloca [1024 x i8], align 4 |
| ; CHECK-NEXT: call void @init_mem(ptr [[P1]], i64 1024) |
| ; CHECK-NEXT: call void @init_mem(ptr [[P2]], i64 1024) |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[INDEX2:%.*]] = phi i64 [ [[INDEX_NEXT1:%.*]], [[LOOP_INC:%.*]] ], [ 3, [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[P1]], i64 [[INDEX2]] |
| ; CHECK-NEXT: [[TMP38:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 |
| ; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds i8, ptr [[P2]], i64 [[INDEX2]] |
| ; CHECK-NEXT: [[TMP39:%.*]] = load i8, ptr [[ARRAYIDX1]], align 1 |
| ; CHECK-NEXT: [[CMP3:%.*]] = icmp eq i8 [[TMP38]], [[TMP39]] |
| ; CHECK-NEXT: br i1 [[CMP3]], label [[LOOP_INC]], label [[LOOP_END:%.*]] |
| ; CHECK: loop.inc: |
| ; CHECK-NEXT: [[INDEX_NEXT1]] = add i64 [[INDEX2]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDEX_NEXT1]], 67 |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[LOOP_END]] |
| ; CHECK: loop.end: |
| ; CHECK-NEXT: [[START_0_LCSSA:%.*]] = phi i64 [ [[INDEX2]], [[LOOP]] ], [ 67, [[LOOP_INC]] ] |
| ; CHECK-NEXT: ret i64 [[START_0_LCSSA]] |
| ; |
| entry: |
| %p1 = alloca [1024 x i8] |
| %p2 = alloca [1024 x i8] |
| call void @init_mem(ptr %p1, i64 1024) |
| call void @init_mem(ptr %p2, i64 1024) |
| br label %loop |
| |
| loop: |
| %index = phi i64 [ %index.next, %loop.inc ], [ 3, %entry ] |
| %arrayidx = getelementptr inbounds i8, ptr %p1, i64 %index |
| %ld1 = load i8, ptr %arrayidx, align 1 |
| %arrayidx1 = getelementptr inbounds i8, ptr %p2, i64 %index |
| %ld2 = load i8, ptr %arrayidx1, align 1 |
| %cmp3 = icmp eq i8 %ld1, %ld2 |
| br i1 %cmp3, label %loop.inc, label %loop.end |
| |
| loop.inc: |
| %index.next = add i64 %index, 1 |
| %exitcond = icmp ne i64 %index.next, 67 |
| br i1 %exitcond, label %loop, label %loop.end |
| |
| loop.end: |
| %retval = phi i64 [ %index, %loop ], [ 67, %loop.inc ] |
| ret i64 %retval |
| } |
| |
| |
| ; In this example the early exit block appears in the list of ExitNotTaken |
| ; SCEVs, but is not computable. |
| define i64 @same_exit_block_pre_inc_use4() { |
| ; CHECK-LABEL: define i64 @same_exit_block_pre_inc_use4() { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[P1:%.*]] = alloca [1024 x i64], align 8 |
| ; CHECK-NEXT: [[P2:%.*]] = alloca [1024 x i64], align 8 |
| ; CHECK-NEXT: call void @init_mem(ptr [[P1]], i64 1024) |
| ; CHECK-NEXT: call void @init_mem(ptr [[P2]], i64 1024) |
| ; CHECK-NEXT: br label [[LOOP1:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ [[INDEX_NEXT:%.*]], [[LOOP_INC:%.*]] ], [ 3, [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i64, ptr [[P1]], i64 [[INDEX]] |
| ; CHECK-NEXT: [[LD1:%.*]] = load i64, ptr [[ARRAYIDX]], align 1 |
| ; CHECK-NEXT: [[CMP3:%.*]] = icmp ult i64 [[INDEX]], [[LD1]] |
| ; CHECK-NEXT: br i1 [[CMP3]], label [[LOOP_INC]], label [[LOOP_END:%.*]] |
| ; CHECK: loop.inc: |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDEX_NEXT]], 67 |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP1]], label [[LOOP_END]] |
| ; CHECK: loop.end: |
| ; CHECK-NEXT: [[RETVAL:%.*]] = phi i64 [ [[INDEX]], [[LOOP1]] ], [ 67, [[LOOP_INC]] ] |
| ; CHECK-NEXT: ret i64 [[RETVAL]] |
| ; |
| entry: |
| %p1 = alloca [1024 x i64] |
| %p2 = alloca [1024 x i64] |
| call void @init_mem(ptr %p1, i64 1024) |
| call void @init_mem(ptr %p2, i64 1024) |
| br label %loop |
| |
| loop: |
| %index = phi i64 [ %index.next, %loop.inc ], [ 3, %entry ] |
| %arrayidx = getelementptr inbounds i64, ptr %p1, i64 %index |
| %ld1 = load i64, ptr %arrayidx, align 1 |
| %cmp3 = icmp ult i64 %index, %ld1 |
| br i1 %cmp3, label %loop.inc, label %loop.end |
| |
| loop.inc: |
| %index.next = add i64 %index, 1 |
| %exitcond = icmp ne i64 %index.next, 67 |
| br i1 %exitcond, label %loop, label %loop.end |
| |
| loop.end: |
| %retval = phi i64 [ %index, %loop ], [ 67, %loop.inc ] |
| ret i64 %retval |
| } |
| |
| |
| define i64 @loop_contains_safe_call() #1 { |
| ; CHECK-LABEL: define i64 @loop_contains_safe_call( |
| ; CHECK-SAME: ) #[[ATTR0]] { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[P1:%.*]] = alloca [1024 x i8], align 4 |
| ; CHECK-NEXT: [[P2:%.*]] = alloca [1024 x i8], align 4 |
| ; CHECK-NEXT: call void @init_mem(ptr [[P1]], i64 1024) |
| ; CHECK-NEXT: call void @init_mem(ptr [[P2]], i64 1024) |
| ; CHECK-NEXT: br label [[LOOP1:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[INDEX2:%.*]] = phi i64 [ [[INDEX_NEXT1:%.*]], [[LOOP_INC1:%.*]] ], [ 3, [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[P1]], i64 [[INDEX2]] |
| ; CHECK-NEXT: [[LD1:%.*]] = load float, ptr [[ARRAYIDX]], align 1 |
| ; CHECK-NEXT: [[SQRT:%.*]] = tail call fast float @llvm.sqrt.f32(float [[LD1]]) |
| ; CHECK-NEXT: [[CMP:%.*]] = fcmp fast ult float [[SQRT]], 3.000000e+00 |
| ; CHECK-NEXT: br i1 [[CMP]], label [[LOOP_INC1]], label [[LOOP_END:%.*]] |
| ; CHECK: loop.inc: |
| ; CHECK-NEXT: [[INDEX_NEXT1]] = add i64 [[INDEX2]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDEX_NEXT1]], 67 |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP1]], label [[LOOP_END]] |
| ; CHECK: loop.end: |
| ; CHECK-NEXT: [[RETVAL:%.*]] = phi i64 [ [[INDEX2]], [[LOOP1]] ], [ 67, [[LOOP_INC1]] ] |
| ; CHECK-NEXT: ret i64 [[RETVAL]] |
| ; |
| entry: |
| %p1 = alloca [1024 x i8] |
| %p2 = alloca [1024 x i8] |
| call void @init_mem(ptr %p1, i64 1024) |
| call void @init_mem(ptr %p2, i64 1024) |
| br label %loop |
| |
| loop: |
| %index = phi i64 [ %index.next, %loop.inc ], [ 3, %entry ] |
| %arrayidx = getelementptr inbounds float, ptr %p1, i64 %index |
| %ld1 = load float, ptr %arrayidx, align 1 |
| %sqrt = tail call fast float @llvm.sqrt.f32(float %ld1) |
| %cmp = fcmp fast ult float %sqrt, 3.0e+00 |
| br i1 %cmp, label %loop.inc, label %loop.end |
| |
| loop.inc: |
| %index.next = add i64 %index, 1 |
| %exitcond = icmp ne i64 %index.next, 67 |
| br i1 %exitcond, label %loop, label %loop.end |
| |
| loop.end: |
| %retval = phi i64 [ %index, %loop ], [ 67, %loop.inc ] |
| ret i64 %retval |
| } |
| |
| |
| define i64 @loop_contains_safe_div() #1 { |
| ; CHECK-LABEL: define i64 @loop_contains_safe_div( |
| ; CHECK-SAME: ) #[[ATTR0]] { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[P1:%.*]] = alloca [1024 x i8], align 4 |
| ; CHECK-NEXT: [[P2:%.*]] = alloca [1024 x i8], align 4 |
| ; CHECK-NEXT: call void @init_mem(ptr [[P1]], i64 1024) |
| ; CHECK-NEXT: call void @init_mem(ptr [[P2]], i64 1024) |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ [[INDEX_NEXT:%.*]], [[LOOP_INC:%.*]] ], [ 3, [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[P1]], i64 [[INDEX]] |
| ; CHECK-NEXT: [[LD1:%.*]] = load i32, ptr [[ARRAYIDX]], align 1 |
| ; CHECK-NEXT: [[DIV:%.*]] = udiv i32 [[LD1]], 20000 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[DIV]], 1 |
| ; CHECK-NEXT: br i1 [[CMP]], label [[LOOP_INC]], label [[LOOP_END:%.*]] |
| ; CHECK: loop.inc: |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDEX_NEXT]], 67 |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[LOOP_END]] |
| ; CHECK: loop.end: |
| ; CHECK-NEXT: [[RETVAL:%.*]] = phi i64 [ [[INDEX]], [[LOOP]] ], [ 67, [[LOOP_INC]] ] |
| ; CHECK-NEXT: ret i64 [[RETVAL]] |
| ; |
| entry: |
| %p1 = alloca [1024 x i8] |
| %p2 = alloca [1024 x i8] |
| call void @init_mem(ptr %p1, i64 1024) |
| call void @init_mem(ptr %p2, i64 1024) |
| br label %loop |
| |
| loop: |
| %index = phi i64 [ %index.next, %loop.inc ], [ 3, %entry ] |
| %arrayidx = getelementptr inbounds i32, ptr %p1, i64 %index |
| %ld1 = load i32, ptr %arrayidx, align 1 |
| %div = udiv i32 %ld1, 20000 |
| %cmp = icmp eq i32 %div, 1 |
| br i1 %cmp, label %loop.inc, label %loop.end |
| |
| loop.inc: |
| %index.next = add i64 %index, 1 |
| %exitcond = icmp ne i64 %index.next, 67 |
| br i1 %exitcond, label %loop, label %loop.end |
| |
| loop.end: |
| %retval = phi i64 [ %index, %loop ], [ 67, %loop.inc ] |
| ret i64 %retval |
| } |
| |
| |
| define i64 @loop_contains_load_after_early_exit(ptr dereferenceable(1024) align(8) %p2) { |
| ; DEBUG-LABEL: LV: Checking a loop in 'loop_contains_load_after_early_exit' |
| ; DEBUG: LV: Found an early exit loop with symbolic max backedge taken count: 63 |
| ; DEBUG-NEXT: LV: We can vectorize this loop! |
| ; DEBUG-NEXT: LV: Not vectorizing: Auto-vectorization of loops with uncountable early exit is not yet supported. |
| ; CHECK-LABEL: define i64 @loop_contains_load_after_early_exit( |
| ; CHECK-SAME: ptr align 8 dereferenceable(1024) [[P2:%.*]]) { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[P1:%.*]] = alloca [1024 x i8], align 4 |
| ; CHECK-NEXT: call void @init_mem(ptr [[P1]], i64 1024) |
| ; CHECK-NEXT: br label [[LOOP1:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ [[INDEX_NEXT:%.*]], [[LOOP_INC:%.*]] ], [ 3, [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[P1]], i64 [[INDEX]] |
| ; CHECK-NEXT: [[LD1:%.*]] = load i32, ptr [[ARRAYIDX]], align 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[LD1]], 1 |
| ; CHECK-NEXT: br i1 [[CMP]], label [[LOOP_INC]], label [[LOOP_END:%.*]] |
| ; CHECK: loop.inc: |
| ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i64, ptr [[P2]], i64 [[INDEX]] |
| ; CHECK-NEXT: [[LD2:%.*]] = load i64, ptr [[ARRAYIDX2]], align 8 |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDEX_NEXT]], 67 |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP1]], label [[LOOP_END]] |
| ; CHECK: loop.end: |
| ; CHECK-NEXT: [[RETVAL:%.*]] = phi i64 [ [[INDEX]], [[LOOP1]] ], [ [[LD2]], [[LOOP_INC]] ] |
| ; CHECK-NEXT: ret i64 [[RETVAL]] |
| ; |
| entry: |
| %p1 = alloca [1024 x i8] |
| call void @init_mem(ptr %p1, i64 1024) |
| br label %loop |
| |
| loop: |
| %index = phi i64 [ %index.next, %loop.inc ], [ 3, %entry ] |
| %arrayidx = getelementptr inbounds i32, ptr %p1, i64 %index |
| %ld1 = load i32, ptr %arrayidx, align 1 |
| %cmp = icmp eq i32 %ld1, 1 |
| br i1 %cmp, label %loop.inc, label %loop.end |
| |
| loop.inc: |
| %arrayidx2 = getelementptr inbounds i64, ptr %p2, i64 %index |
| %ld2 = load i64, ptr %arrayidx2, align 8 |
| %index.next = add i64 %index, 1 |
| %exitcond = icmp ne i64 %index.next, 67 |
| br i1 %exitcond, label %loop, label %loop.end |
| |
| loop.end: |
| %retval = phi i64 [ %index, %loop ], [ %ld2, %loop.inc ] |
| ret i64 %retval |
| } |
| |
| |
| ; The form of the induction variables requires SCEV predicates. |
| define i32 @diff_exit_block_needs_scev_check(i32 %end) { |
| ; DEBUG-LABEL: LV: Checking a loop in 'diff_exit_block_needs_scev_check' |
| ; DEBUG: Found an early exit loop with symbolic max backedge taken count: (-1 + (1 umax (zext i10 (trunc i32 %end to i10) to i32)))<nsw> |
| ; DEBUG-NEXT: LV: We can vectorize this loop! |
| ; DEBUG-NEXT: LV: Not vectorizing: Auto-vectorization of loops with uncountable early exit is not yet supported. |
| ; CHECK-LABEL: define i32 @diff_exit_block_needs_scev_check( |
| ; CHECK-SAME: i32 [[END:%.*]]) { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[P1:%.*]] = alloca [1024 x i32], align 4 |
| ; CHECK-NEXT: [[P2:%.*]] = alloca [1024 x i32], align 4 |
| ; CHECK-NEXT: call void @init_mem(ptr [[P1]], i64 1024) |
| ; CHECK-NEXT: call void @init_mem(ptr [[P2]], i64 1024) |
| ; CHECK-NEXT: [[END_CLAMPED:%.*]] = and i32 [[END]], 1023 |
| ; CHECK-NEXT: [[TMP19:%.*]] = trunc i32 [[END]] to i10 |
| ; CHECK-NEXT: [[TMP20:%.*]] = zext i10 [[TMP19]] to i64 |
| ; CHECK-NEXT: [[UMAX1:%.*]] = call i64 @llvm.umax.i64(i64 [[TMP20]], i64 1) |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[UMAX1]], 12 |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_SCEVCHECK:%.*]] |
| ; CHECK: vector.scevcheck: |
| ; CHECK-NEXT: [[UMAX:%.*]] = call i32 @llvm.umax.i32(i32 [[END_CLAMPED]], i32 1) |
| ; CHECK-NEXT: [[TMP2:%.*]] = add nsw i32 [[UMAX]], -1 |
| ; CHECK-NEXT: [[TMP3:%.*]] = trunc i32 [[TMP2]] to i8 |
| ; CHECK-NEXT: [[TMP4:%.*]] = add i8 1, [[TMP3]] |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp ult i8 [[TMP4]], 1 |
| ; CHECK-NEXT: [[TMP6:%.*]] = icmp ugt i32 [[TMP2]], 255 |
| ; CHECK-NEXT: [[TMP7:%.*]] = or i1 [[TMP5]], [[TMP6]] |
| ; CHECK-NEXT: br i1 [[TMP7]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]] |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[UMAX1]], 4 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[UMAX1]], [[N_MOD_VF]] |
| ; CHECK-NEXT: [[IND_END:%.*]] = trunc i64 [[N_VEC]] to i8 |
| ; CHECK-NEXT: br label [[FOR_BODY1:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[FOR_BODY1]] ] |
| ; CHECK-NEXT: [[TMP8:%.*]] = add i64 [[INDEX]], 0 |
| ; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds i32, ptr [[P1]], i64 [[TMP8]] |
| ; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds i32, ptr [[TMP9]], i32 0 |
| ; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i32>, ptr [[TMP10]], align 4 |
| ; CHECK-NEXT: [[TMP11:%.*]] = getelementptr inbounds i32, ptr [[P2]], i64 [[TMP8]] |
| ; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds i32, ptr [[TMP11]], i32 0 |
| ; CHECK-NEXT: [[WIDE_LOAD3:%.*]] = load <4 x i32>, ptr [[TMP12]], align 4 |
| ; CHECK-NEXT: [[TMP13:%.*]] = icmp eq <4 x i32> [[WIDE_LOAD]], [[WIDE_LOAD3]] |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 |
| ; CHECK-NEXT: [[TMP16:%.*]] = call i1 @llvm.vector.reduce.or.v4i1(<4 x i1> [[TMP13]]) |
| ; CHECK-NEXT: [[TMP17:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] |
| ; CHECK-NEXT: br i1 [[TMP18]], label [[MIDDLE_SPLIT:%.*]], label [[FOR_BODY1]], !llvm.loop [[LOOP0:![0-9]+]] |
| ; CHECK: middle.split: |
| ; CHECK-NEXT: br i1 [[TMP16]], label [[FOUND:%.*]], label [[MIDDLE_BLOCK:%.*]] |
| ; CHECK: middle.block: |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[UMAX1]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]] |
| ; CHECK: scalar.ph: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i8 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ 0, [[VECTOR_SCEVCHECK]] ], [ 0, [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: [[BC_RESUME_VAL2:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[VECTOR_SCEVCHECK]] ], [ 0, [[ENTRY]] ] |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[IND:%.*]] = phi i8 [ [[IND_NEXT:%.*]], [[FOR_INC:%.*]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] |
| ; CHECK-NEXT: [[GEP_IND:%.*]] = phi i64 [ [[GEP_IND_NEXT:%.*]], [[FOR_INC]] ], [ [[BC_RESUME_VAL2]], [[SCALAR_PH]] ] |
| ; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds i32, ptr [[P1]], i64 [[GEP_IND]] |
| ; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[ARRAYIDX1]], align 4 |
| ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, ptr [[P2]], i64 [[GEP_IND]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[ARRAYIDX2]], align 4 |
| ; CHECK-NEXT: [[CMP_EARLY:%.*]] = icmp eq i32 [[TMP0]], [[TMP1]] |
| ; CHECK-NEXT: br i1 [[CMP_EARLY]], label [[FOUND]], label [[FOR_INC]] |
| ; CHECK: for.inc: |
| ; CHECK-NEXT: [[IND_NEXT]] = add i8 [[IND]], 1 |
| ; CHECK-NEXT: [[CONV:%.*]] = zext i8 [[IND_NEXT]] to i32 |
| ; CHECK-NEXT: [[GEP_IND_NEXT]] = add i64 [[GEP_IND]], 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[CONV]], [[END_CLAMPED]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[EXIT]], !llvm.loop [[LOOP3:![0-9]+]] |
| ; CHECK: found: |
| ; CHECK-NEXT: ret i32 1 |
| ; CHECK: exit: |
| ; CHECK-NEXT: ret i32 0 |
| ; |
| entry: |
| %p1 = alloca [1024 x i32] |
| %p2 = alloca [1024 x i32] |
| call void @init_mem(ptr %p1, i64 1024) |
| call void @init_mem(ptr %p2, i64 1024) |
| %end.clamped = and i32 %end, 1023 |
| br label %for.body |
| |
| for.body: |
| %ind = phi i8 [ %ind.next, %for.inc ], [ 0, %entry ] |
| %gep.ind = phi i64 [ %gep.ind.next, %for.inc ], [ 0, %entry ] |
| %arrayidx1 = getelementptr inbounds i32, ptr %p1, i64 %gep.ind |
| %0 = load i32, ptr %arrayidx1, align 4 |
| %arrayidx2 = getelementptr inbounds i32, ptr %p2, i64 %gep.ind |
| %1 = load i32, ptr %arrayidx2, align 4 |
| %cmp.early = icmp eq i32 %0, %1 |
| br i1 %cmp.early, label %found, label %for.inc |
| |
| for.inc: |
| %ind.next = add i8 %ind, 1 |
| %conv = zext i8 %ind.next to i32 |
| %gep.ind.next = add i64 %gep.ind, 1 |
| %cmp = icmp ult i32 %conv, %end.clamped |
| br i1 %cmp, label %for.body, label %exit |
| |
| found: |
| ret i32 1 |
| |
| exit: |
| ret i32 0 |
| } |
| |
| %my.struct = type { i8, i8 } |
| |
| define i64 @same_exit_block_requires_interleaving() { |
| ; CHECK-LABEL: define i64 @same_exit_block_requires_interleaving() { |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[P1:%.*]] = alloca [128 x %my.struct], align 8 |
| ; CHECK-NEXT: call void @init_mem(ptr [[P1]], i64 256) |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ [[INDEX_NEXT:%.*]], [[LOOP_LATCH:%.*]] ], [ 3, [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [128 x %my.struct], ptr [[P1]], i64 0, i64 [[INDEX]] |
| ; CHECK-NEXT: [[LD1:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 |
| ; CHECK-NEXT: [[CMP3:%.*]] = icmp eq i8 [[LD1]], 3 |
| ; CHECK-NEXT: br i1 [[CMP3]], label [[LOOP_LATCH]], label [[LOOP_END:%.*]] |
| ; CHECK: loop.latch: |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDEX_NEXT]], 69 |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[LOOP_END]] |
| ; CHECK: loop.end: |
| ; CHECK-NEXT: [[RETVAL:%.*]] = phi i64 [ 0, [[LOOP_LATCH]] ], [ 1, [[LOOP]] ] |
| ; CHECK-NEXT: ret i64 [[RETVAL]] |
| ; |
| entry: |
| %p1 = alloca [128 x %my.struct] |
| call void @init_mem(ptr %p1, i64 256) |
| br label %loop |
| |
| loop: |
| %index = phi i64 [ %index.next, %loop.latch ], [ 3, %entry ] |
| %arrayidx = getelementptr inbounds [128 x %my.struct], ptr %p1, i64 0, i64 %index |
| %ld1 = load i8, ptr %arrayidx, align 1 |
| %cmp3 = icmp eq i8 %ld1, 3 |
| br i1 %cmp3, label %loop.latch, label %loop.end |
| |
| loop.latch: |
| %index.next = add i64 %index, 1 |
| %exitcond = icmp ne i64 %index.next, 69 |
| br i1 %exitcond, label %loop, label %loop.end |
| |
| loop.end: |
| %retval = phi i64 [ 0, %loop.latch ], [ 1, %loop ] |
| ret i64 %retval |
| } |
| |
| declare i32 @foo(i32) readonly |
| declare <vscale x 4 x i32> @foo_vec(<vscale x 4 x i32>) |
| |
| attributes #0 = { "vector-function-abi-variant"="_ZGVsNxv_foo(foo_vec)" } |
| attributes #1 = { "target-features"="+sve" vscale_range(1,16) } |
| ;. |
| ; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]} |
| ; CHECK: [[META1]] = !{!"llvm.loop.isvectorized", i32 1} |
| ; CHECK: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"} |
| ; CHECK: [[LOOP3]] = distinct !{[[LOOP3]], [[META1]]} |
| ;. |
