1 files changed, 0 insertions, 1595 deletions
diff --git a/llvm/test/Transforms/LoopPredication/basic.ll b/llvm/test/Transforms/LoopPredication/basic.ll
deleted file mode 100644
index 287c6d20be7..00000000000
--- a/llvm/test/Transforms/LoopPredication/basic.ll
+++ /dev/null
@@ -1,1595 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt -S -loop-predication < %s 2>&1 | FileCheck %s
-; RUN: opt -S -passes='require<scalar-evolution>,loop(loop-predication)' < %s 2>&1 | FileCheck %s
-
-declare void @llvm.experimental.guard(i1, ...)
-
-define i32 @unsigned_loop_0_to_n_ult_check(i32* %array, i32 %length, i32 %n) {
-; CHECK-LABEL: @unsigned_loop_0_to_n_ult_check(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH:%.*]]
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]]
-; CHECK-NEXT:    [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP2]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp eq i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %within.bounds = icmp ult i32 %i, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp ult i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @unsigned_loop_0_to_n_ule_latch_ult_check(i32* %array, i32 %length, i32 %n) {
-; CHECK-LABEL: @unsigned_loop_0_to_n_ule_latch_ult_check(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = icmp ult i32 [[N]], [[LENGTH:%.*]]
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]]
-; CHECK-NEXT:    [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP2]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp ule i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp eq i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %within.bounds = icmp ult i32 %i, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp ule i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @unsigned_loop_0_to_n_ugt_check(i32* %array, i32 %length, i32 %n) {
-; CHECK-LABEL: @unsigned_loop_0_to_n_ugt_check(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH:%.*]]
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]]
-; CHECK-NEXT:    [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP2]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp eq i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %within.bounds = icmp ugt i32 %length, %i
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp ult i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_0_to_n_ult_check(i32* %array, i32 %length, i32 %n) {
-; CHECK-LABEL: @signed_loop_0_to_n_ult_check(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = icmp sle i32 [[N]], [[LENGTH:%.*]]
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]]
-; CHECK-NEXT:    [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP2]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %within.bounds = icmp ult i32 %i, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp slt i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_0_to_n_ult_check_length_range_known(i32* %array, i32* %length.ptr, i32 %n) {
-; CHECK-LABEL: @signed_loop_0_to_n_ult_check_length_range_known(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    [[LENGTH:%.*]] = load i32, i32* [[LENGTH_PTR:%.*]], !range !0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = icmp sle i32 [[N]], [[LENGTH]]
-; CHECK-NEXT:    [[TMP1:%.*]] = and i1 true, [[TMP0]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP1]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  %length = load i32, i32* %length.ptr, !range !{i32 1, i32 2147483648}
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %within.bounds = icmp ult i32 %i, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp slt i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_0_to_n_inverse_latch_predicate(i32* %array, i32 %length, i32 %n) {
-; CHECK-LABEL: @signed_loop_0_to_n_inverse_latch_predicate(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = icmp slt i32 [[N]], [[LENGTH:%.*]]
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]]
-; CHECK-NEXT:    [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP2]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp sgt i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[EXIT_LOOPEXIT:%.*]], label [[LOOP]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %within.bounds = icmp ult i32 %i, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp sgt i32 %i.next, %n
-  br i1 %continue, label %exit, label %loop
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_0_to_n_sle_latch_ult_check(i32* %array, i32 %length, i32 %n) {
-; CHECK-LABEL: @signed_loop_0_to_n_sle_latch_ult_check(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = icmp slt i32 [[N]], [[LENGTH:%.*]]
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]]
-; CHECK-NEXT:    [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP2]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp sle i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %within.bounds = icmp ult i32 %i, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp sle i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_0_to_n_preincrement_latch_check(i32* %array, i32 %length, i32 %n) {
-; CHECK-LABEL: @signed_loop_0_to_n_preincrement_latch_check(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = add i32 [[LENGTH:%.*]], -1
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp sle i32 [[N]], [[TMP0]]
-; CHECK-NEXT:    [[TMP2:%.*]] = icmp ult i32 0, [[LENGTH]]
-; CHECK-NEXT:    [[TMP3:%.*]] = and i1 [[TMP2]], [[TMP1]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP3]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp slt i32 [[I]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %within.bounds = icmp ult i32 %i, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add i32 %i, 1
-  %continue = icmp slt i32 %i, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_0_to_n_preincrement_latch_check_postincrement_guard_check(i32* %array, i32 %length, i32 %n) {
-; CHECK-LABEL: @signed_loop_0_to_n_preincrement_latch_check_postincrement_guard_check(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = add i32 [[LENGTH:%.*]], -2
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp sle i32 [[N]], [[TMP0]]
-; CHECK-NEXT:    [[TMP2:%.*]] = icmp ult i32 1, [[LENGTH]]
-; CHECK-NEXT:    [[TMP3:%.*]] = and i1 [[TMP2]], [[TMP1]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I_NEXT]] = add i32 [[I]], 1
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP3]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp slt i32 [[I]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-
-  %i.next = add i32 %i, 1
-  %within.bounds = icmp ult i32 %i.next, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %continue = icmp slt i32 %i, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_0_to_n_sle_latch_offset_ult_check(i32* %array, i32 %length, i32 %n) {
-; CHECK-LABEL: @signed_loop_0_to_n_sle_latch_offset_ult_check(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = add i32 [[LENGTH:%.*]], -1
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp slt i32 [[N]], [[TMP0]]
-; CHECK-NEXT:    [[TMP2:%.*]] = icmp ult i32 1, [[LENGTH]]
-; CHECK-NEXT:    [[TMP3:%.*]] = and i1 [[TMP2]], [[TMP1]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP3]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp sle i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %i.offset = add i32 %i, 1
-  %within.bounds = icmp ult i32 %i.offset, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add i32 %i, 1
-  %continue = icmp sle i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_0_to_n_offset_sle_latch_offset_ult_check(i32* %array, i32 %length, i32 %n) {
-; CHECK-LABEL: @signed_loop_0_to_n_offset_sle_latch_offset_ult_check(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = icmp slt i32 [[N]], [[LENGTH:%.*]]
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp ult i32 1, [[LENGTH]]
-; CHECK-NEXT:    [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP2]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add i32 [[I]], 1
-; CHECK-NEXT:    [[I_NEXT_OFFSET:%.*]] = add i32 [[I_NEXT]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp sle i32 [[I_NEXT_OFFSET]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %i.offset = add i32 %i, 1
-  %within.bounds = icmp ult i32 %i.offset, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add i32 %i, 1
-  %i.next.offset = add i32 %i.next, 1
-  %continue = icmp sle i32 %i.next.offset, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @unsupported_latch_pred_loop_0_to_n(i32* %array, i32 %length, i32 %n) {
-; CHECK-LABEL: @unsupported_latch_pred_loop_0_to_n(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH:%.*]]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[WITHIN_BOUNDS]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nsw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp ne i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %within.bounds = icmp ult i32 %i, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nsw i32 %i, 1
-  %continue = icmp ne i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_0_to_n_unsupported_iv_step(i32* %array, i32 %length, i32 %n) {
-; CHECK-LABEL: @signed_loop_0_to_n_unsupported_iv_step(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH:%.*]]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[WITHIN_BOUNDS]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nsw i32 [[I]], 2
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %within.bounds = icmp ult i32 %i, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nsw i32 %i, 2
-  %continue = icmp slt i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_0_to_n_equal_iv_range_check(i32* %array, i32 %length, i32 %n) {
-; CHECK-LABEL: @signed_loop_0_to_n_equal_iv_range_check(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = icmp sle i32 [[N]], [[LENGTH:%.*]]
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]]
-; CHECK-NEXT:    [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[J:%.*]] = phi i32 [ [[J_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP2]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[J_NEXT]] = add nsw i32 [[J]], 1
-; CHECK-NEXT:    [[I_NEXT]] = add nsw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %j = phi i32 [ %j.next, %loop ], [ 0, %loop.preheader ]
-
-  %within.bounds = icmp ult i32 %j, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %j.next = add nsw i32 %j, 1
-  %i.next = add nsw i32 %i, 1
-  %continue = icmp slt i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_start_to_n_offset_iv_range_check(i32* %array, i32 %start.i,
-; CHECK-LABEL: @signed_loop_start_to_n_offset_iv_range_check(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = add i32 [[LENGTH:%.*]], [[START_I:%.*]]
-; CHECK-NEXT:    [[TMP1:%.*]] = sub i32 [[TMP0]], [[START_J:%.*]]
-; CHECK-NEXT:    [[TMP2:%.*]] = icmp sle i32 [[N]], [[TMP1]]
-; CHECK-NEXT:    [[TMP3:%.*]] = icmp ult i32 [[START_J]], [[LENGTH]]
-; CHECK-NEXT:    [[TMP4:%.*]] = and i1 [[TMP3]], [[TMP2]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ [[START_I]], [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[J:%.*]] = phi i32 [ [[J_NEXT:%.*]], [[LOOP]] ], [ [[START_J]], [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP4]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[J_NEXT]] = add i32 [[J]], 1
-; CHECK-NEXT:    [[I_NEXT]] = add i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-  i32 %start.j, i32 %length,
-  i32 %n) {
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ %start.i, %loop.preheader ]
-  %j = phi i32 [ %j.next, %loop ], [ %start.j, %loop.preheader ]
-
-  %within.bounds = icmp ult i32 %j, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %j.next = add i32 %j, 1
-  %i.next = add i32 %i, 1
-  %continue = icmp slt i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_0_to_n_different_iv_types(i32* %array, i16 %length, i32 %n) {
-; CHECK-LABEL: @signed_loop_0_to_n_different_iv_types(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[J:%.*]] = phi i16 [ [[J_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[WITHIN_BOUNDS:%.*]] = icmp ult i16 [[J]], [[LENGTH:%.*]]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[WITHIN_BOUNDS]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[J_NEXT]] = add i16 [[J]], 1
-; CHECK-NEXT:    [[I_NEXT]] = add i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %j = phi i16 [ %j.next, %loop ], [ 0, %loop.preheader ]
-
-  %within.bounds = icmp ult i16 %j, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %j.next = add i16 %j, 1
-  %i.next = add i32 %i, 1
-  %continue = icmp slt i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_0_to_n_different_iv_strides(i32* %array, i32 %length, i32 %n) {
-; CHECK-LABEL: @signed_loop_0_to_n_different_iv_strides(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[J:%.*]] = phi i32 [ [[J_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[J]], [[LENGTH:%.*]]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[WITHIN_BOUNDS]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[J_NEXT]] = add nsw i32 [[J]], 2
-; CHECK-NEXT:    [[I_NEXT]] = add nsw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %j = phi i32 [ %j.next, %loop ], [ 0, %loop.preheader ]
-
-  %within.bounds = icmp ult i32 %j, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %j.next = add nsw i32 %j, 2
-  %i.next = add nsw i32 %i, 1
-  %continue = icmp slt i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @two_range_checks(i32* %array.1, i32 %length.1,
-; CHECK-LABEL: @two_range_checks(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH_2:%.*]]
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH_2]]
-; CHECK-NEXT:    [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]]
-; CHECK-NEXT:    [[TMP3:%.*]] = icmp ule i32 [[N]], [[LENGTH_1:%.*]]
-; CHECK-NEXT:    [[TMP4:%.*]] = icmp ult i32 0, [[LENGTH_1]]
-; CHECK-NEXT:    [[TMP5:%.*]] = and i1 [[TMP4]], [[TMP3]]
-; CHECK-NEXT:    [[TMP6:%.*]] = and i1 [[TMP2]], [[TMP5]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP6]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_1_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_1:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_1_I:%.*]] = load i32, i32* [[ARRAY_1_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_1:%.*]] = add i32 [[LOOP_ACC]], [[ARRAY_1_I]]
-; CHECK-NEXT:    [[ARRAY_2_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_2:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_2_I:%.*]] = load i32, i32* [[ARRAY_2_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC_1]], [[ARRAY_2_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-  i32* %array.2, i32 %length.2, i32 %n) {
-entry:
-  %tmp5 = icmp eq i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %within.bounds.1 = icmp ult i32 %i, %length.1
-  %within.bounds.2 = icmp ult i32 %i, %length.2
-  %within.bounds = and i1 %within.bounds.1, %within.bounds.2
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.1.i.ptr = getelementptr inbounds i32, i32* %array.1, i64 %i.i64
-  %array.1.i = load i32, i32* %array.1.i.ptr, align 4
-  %loop.acc.1 = add i32 %loop.acc, %array.1.i
-
-  %array.2.i.ptr = getelementptr inbounds i32, i32* %array.2, i64 %i.i64
-  %array.2.i = load i32, i32* %array.2.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc.1, %array.2.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp ult i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @three_range_checks(i32* %array.1, i32 %length.1,
-; CHECK-LABEL: @three_range_checks(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH_3:%.*]]
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH_3]]
-; CHECK-NEXT:    [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]]
-; CHECK-NEXT:    [[TMP3:%.*]] = icmp ule i32 [[N]], [[LENGTH_2:%.*]]
-; CHECK-NEXT:    [[TMP4:%.*]] = icmp ult i32 0, [[LENGTH_2]]
-; CHECK-NEXT:    [[TMP5:%.*]] = and i1 [[TMP4]], [[TMP3]]
-; CHECK-NEXT:    [[TMP6:%.*]] = icmp ule i32 [[N]], [[LENGTH_1:%.*]]
-; CHECK-NEXT:    [[TMP7:%.*]] = icmp ult i32 0, [[LENGTH_1]]
-; CHECK-NEXT:    [[TMP8:%.*]] = and i1 [[TMP7]], [[TMP6]]
-; CHECK-NEXT:    [[TMP9:%.*]] = and i1 [[TMP2]], [[TMP5]]
-; CHECK-NEXT:    [[TMP10:%.*]] = and i1 [[TMP9]], [[TMP8]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP10]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_1_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_1:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_1_I:%.*]] = load i32, i32* [[ARRAY_1_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_1:%.*]] = add i32 [[LOOP_ACC]], [[ARRAY_1_I]]
-; CHECK-NEXT:    [[ARRAY_2_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_2:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_2_I:%.*]] = load i32, i32* [[ARRAY_2_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_2:%.*]] = add i32 [[LOOP_ACC_1]], [[ARRAY_2_I]]
-; CHECK-NEXT:    [[ARRAY_3_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_3:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_3_I:%.*]] = load i32, i32* [[ARRAY_3_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC_2]], [[ARRAY_3_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-  i32* %array.2, i32 %length.2,
-  i32* %array.3, i32 %length.3, i32 %n) {
-entry:
-  %tmp5 = icmp eq i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %within.bounds.1 = icmp ult i32 %i, %length.1
-  %within.bounds.2 = icmp ult i32 %i, %length.2
-  %within.bounds.3 = icmp ult i32 %i, %length.3
-  %within.bounds.1.and.2 = and i1 %within.bounds.1, %within.bounds.2
-  %within.bounds = and i1 %within.bounds.1.and.2, %within.bounds.3
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.1.i.ptr = getelementptr inbounds i32, i32* %array.1, i64 %i.i64
-  %array.1.i = load i32, i32* %array.1.i.ptr, align 4
-  %loop.acc.1 = add i32 %loop.acc, %array.1.i
-
-  %array.2.i.ptr = getelementptr inbounds i32, i32* %array.2, i64 %i.i64
-  %array.2.i = load i32, i32* %array.2.i.ptr, align 4
-  %loop.acc.2 = add i32 %loop.acc.1, %array.2.i
-
-  %array.3.i.ptr = getelementptr inbounds i32, i32* %array.3, i64 %i.i64
-  %array.3.i = load i32, i32* %array.3.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc.2, %array.3.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp ult i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @three_guards(i32* %array.1, i32 %length.1,
-; CHECK-LABEL: @three_guards(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH_1:%.*]]
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH_1]]
-; CHECK-NEXT:    [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]]
-; CHECK-NEXT:    [[TMP3:%.*]] = icmp ule i32 [[N]], [[LENGTH_2:%.*]]
-; CHECK-NEXT:    [[TMP4:%.*]] = icmp ult i32 0, [[LENGTH_2]]
-; CHECK-NEXT:    [[TMP5:%.*]] = and i1 [[TMP4]], [[TMP3]]
-; CHECK-NEXT:    [[TMP6:%.*]] = icmp ule i32 [[N]], [[LENGTH_3:%.*]]
-; CHECK-NEXT:    [[TMP7:%.*]] = icmp ult i32 0, [[LENGTH_3]]
-; CHECK-NEXT:    [[TMP8:%.*]] = and i1 [[TMP7]], [[TMP6]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP2]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_1_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_1:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_1_I:%.*]] = load i32, i32* [[ARRAY_1_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_1:%.*]] = add i32 [[LOOP_ACC]], [[ARRAY_1_I]]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP5]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[ARRAY_2_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_2:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_2_I:%.*]] = load i32, i32* [[ARRAY_2_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_2:%.*]] = add i32 [[LOOP_ACC_1]], [[ARRAY_2_I]]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP8]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[ARRAY_3_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_3:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_3_I:%.*]] = load i32, i32* [[ARRAY_3_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC_2]], [[ARRAY_3_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-  i32* %array.2, i32 %length.2,
-  i32* %array.3, i32 %length.3, i32 %n) {
-entry:
-  %tmp5 = icmp eq i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-
-  %within.bounds.1 = icmp ult i32 %i, %length.1
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds.1, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.1.i.ptr = getelementptr inbounds i32, i32* %array.1, i64 %i.i64
-  %array.1.i = load i32, i32* %array.1.i.ptr, align 4
-  %loop.acc.1 = add i32 %loop.acc, %array.1.i
-
-  %within.bounds.2 = icmp ult i32 %i, %length.2
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds.2, i32 9) [ "deopt"() ]
-
-  %array.2.i.ptr = getelementptr inbounds i32, i32* %array.2, i64 %i.i64
-  %array.2.i = load i32, i32* %array.2.i.ptr, align 4
-  %loop.acc.2 = add i32 %loop.acc.1, %array.2.i
-
-  %within.bounds.3 = icmp ult i32 %i, %length.3
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds.3, i32 9) [ "deopt"() ]
-
-  %array.3.i.ptr = getelementptr inbounds i32, i32* %array.3, i64 %i.i64
-  %array.3.i = load i32, i32* %array.3.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc.2, %array.3.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp ult i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @unsigned_loop_0_to_n_unrelated_condition(i32* %array, i32 %length, i32 %n, i32 %x) {
-; CHECK-LABEL: @unsigned_loop_0_to_n_unrelated_condition(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH:%.*]]
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]]
-; CHECK-NEXT:    [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[UNRELATED_COND:%.*]] = icmp ult i32 [[X:%.*]], [[LENGTH]]
-; CHECK-NEXT:    [[TMP3:%.*]] = and i1 [[UNRELATED_COND]], [[TMP2]]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP3]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp eq i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %within.bounds = icmp ult i32 %i, %length
-  %unrelated.cond = icmp ult i32 %x, %length
-  %guard.cond = and i1 %within.bounds, %unrelated.cond
-  call void (i1, ...) @llvm.experimental.guard(i1 %guard.cond, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp ult i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-; Don't change the guard condition if there were no widened subconditions
-define i32 @test_no_widened_conditions(i32* %array, i32 %length, i32 %n, i32 %x1, i32 %x2, i32 %x3) {
-; CHECK-LABEL: @test_no_widened_conditions(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[UNRELATED_COND_1:%.*]] = icmp eq i32 [[X1:%.*]], [[I]]
-; CHECK-NEXT:    [[UNRELATED_COND_2:%.*]] = icmp eq i32 [[X2:%.*]], [[I]]
-; CHECK-NEXT:    [[UNRELATED_COND_3:%.*]] = icmp eq i32 [[X3:%.*]], [[I]]
-; CHECK-NEXT:    [[UNRELATED_COND_AND_1:%.*]] = and i1 [[UNRELATED_COND_1]], [[UNRELATED_COND_2]]
-; CHECK-NEXT:    [[GUARD_COND:%.*]] = and i1 [[UNRELATED_COND_AND_1]], [[UNRELATED_COND_3]]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[GUARD_COND]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp eq i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %unrelated.cond.1 = icmp eq i32 %x1, %i
-  %unrelated.cond.2 = icmp eq i32 %x2, %i
-  %unrelated.cond.3 = icmp eq i32 %x3, %i
-  %unrelated.cond.and.1 = and i1 %unrelated.cond.1, %unrelated.cond.2
-  %guard.cond = and i1 %unrelated.cond.and.1, %unrelated.cond.3
-
-  call void (i1, ...) @llvm.experimental.guard(i1 %guard.cond, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp ult i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_start_to_n_loop_variant_bound(i32* %array, i32 %x, i32 %start, i32 %n) {
-; CHECK-LABEL: @signed_loop_start_to_n_loop_variant_bound(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ [[START:%.*]], [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[BOUND:%.*]] = add i32 [[I]], [[X:%.*]]
-; CHECK-NEXT:    [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[BOUND]]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[WITHIN_BOUNDS]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nsw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ %start, %loop.preheader ]
-  %bound = add i32 %i, %x
-  %within.bounds = icmp ult i32 %i, %bound
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nsw i32 %i, 1
-  %continue = icmp slt i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @signed_loop_start_to_n_non_monotonic_predicate(i32* %array, i32 %x, i32 %start, i32 %n) {
-; CHECK-LABEL: @signed_loop_start_to_n_non_monotonic_predicate(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ [[START:%.*]], [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[GUARD_COND:%.*]] = icmp eq i32 [[I]], [[X:%.*]]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[GUARD_COND]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nsw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp sle i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ %start, %loop.preheader ]
-  %guard.cond = icmp eq i32 %i, %x
-  call void (i1, ...) @llvm.experimental.guard(i1 %guard.cond, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nsw i32 %i, 1
-  %continue = icmp slt i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @unsigned_loop_0_to_n_hoist_length(i32* %array, i16 %length.i16, i32 %n) {
-; CHECK-LABEL: @unsigned_loop_0_to_n_hoist_length(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    [[TMP0:%.*]] = zext i16 [[LENGTH_I16:%.*]] to i32
-; CHECK-NEXT:    [[TMP1:%.*]] = icmp ule i32 [[N]], [[TMP0]]
-; CHECK-NEXT:    [[TMP2:%.*]] = icmp ult i32 0, [[TMP0]]
-; CHECK-NEXT:    [[TMP3:%.*]] = and i1 [[TMP2]], [[TMP1]]
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP3]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp eq i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %length = zext i16 %length.i16 to i32
-  %within.bounds = icmp ult i32 %i, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp ult i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-define i32 @unsigned_loop_0_to_n_cant_hoist_length(i32* %array, i32 %length, i32 %divider, i32 %n) {
-; CHECK-LABEL: @unsigned_loop_0_to_n_cant_hoist_length(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0
-; CHECK-NEXT:    br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]]
-; CHECK:       loop.preheader:
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    [[LENGTH_UDIV:%.*]] = udiv i32 [[LENGTH:%.*]], [[DIVIDER:%.*]]
-; CHECK-NEXT:    [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH_UDIV]]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[WITHIN_BOUNDS]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]]
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]]
-; CHECK:       exit.loopexit:
-; CHECK-NEXT:    [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    br label [[EXIT]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-entry:
-  %tmp5 = icmp eq i32 %n, 0
-  br i1 %tmp5, label %exit, label %loop.preheader
-
-loop.preheader:
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %length.udiv = udiv i32 %length, %divider
-  %within.bounds = icmp ult i32 %i, %length.udiv
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp ult i32 %i.next, %n
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %loop ]
-  ret i32 %result
-}
-
-
-; This is a case where the length information tells us that the guard
-; must trigger on some iteration.
-define i32 @provably_taken(i32* %array, i32* %length.ptr) {
-; CHECK-LABEL: @provably_taken(
-; CHECK-NEXT:  loop.preheader:
-; CHECK-NEXT:    [[LENGTH:%.*]] = load i32, i32* [[LENGTH_PTR:%.*]], !range !1
-; CHECK-NEXT:    [[TMP0:%.*]] = icmp ult i32 0, [[LENGTH]]
-; CHECK-NEXT:    [[TMP1:%.*]] = and i1 [[TMP0]], false
-; CHECK-NEXT:    br label [[LOOP:%.*]]
-; CHECK:       loop:
-; CHECK-NEXT:    [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER:%.*]] ]
-; CHECK-NEXT:    [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[LOOP]] ], [ 0, [[LOOP_PREHEADER]] ]
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[TMP1]], i32 9) [ "deopt"() ]
-; CHECK-NEXT:    [[I_I64:%.*]] = zext i32 [[I]] to i64
-; CHECK-NEXT:    [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]]
-; CHECK-NEXT:    [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4
-; CHECK-NEXT:    [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]]
-; CHECK-NEXT:    [[I_NEXT]] = add nuw i32 [[I]], 1
-; CHECK-NEXT:    [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], 200
-; CHECK-NEXT:    br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT:%.*]]
-; CHECK:       exit:
-; CHECK-NEXT:    [[RESULT:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[LOOP]] ]
-; CHECK-NEXT:    ret i32 [[RESULT]]
-;
-loop.preheader:
-  %length = load i32, i32* %length.ptr, !range !{i32 0, i32 50}
-  br label %loop
-
-loop:
-  %loop.acc = phi i32 [ %loop.acc.next, %loop ], [ 0, %loop.preheader ]
-  %i = phi i32 [ %i.next, %loop ], [ 0, %loop.preheader ]
-  %within.bounds = icmp ult i32 %i, %length
-  call void (i1, ...) @llvm.experimental.guard(i1 %within.bounds, i32 9) [ "deopt"() ]
-
-  %i.i64 = zext i32 %i to i64
-  %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64
-  %array.i = load i32, i32* %array.i.ptr, align 4
-  %loop.acc.next = add i32 %loop.acc, %array.i
-
-  %i.next = add nuw i32 %i, 1
-  %continue = icmp slt i32 %i.next, 200
-  br i1 %continue, label %loop, label %exit
-
-exit:
-  %result = phi i32 [ %loop.acc.next, %loop ]
-  ret i32 %result
-}