; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -S -passes='loop-mssa(loop-predication)' -loop-predication-insert-assumes-of-predicated-guards-conditions=false < %s 2>&1 | FileCheck %s define i32 @test_ult(ptr noundef %p, i32 noundef %n, ptr noundef %arr, ptr noundef %len_p, i32 noundef %c) { ; CHECK-LABEL: @test_ult( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[LEN:%.*]] = load i32, ptr [[LEN_P:%.*]], align 4, !range [[RNG0:![0-9]+]], !noundef !1 ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ] ; CHECK-NEXT: [[EL_PTR:%.*]] = getelementptr i32, ptr [[P:%.*]], i32 [[IV]] ; CHECK-NEXT: [[EL:%.*]] = load i32, ptr [[EL_PTR]], align 4 ; CHECK-NEXT: [[BOUND_CHECK:%.*]] = icmp ult i32 [[EL]], 128 ; CHECK-NEXT: br i1 [[BOUND_CHECK]], label [[DO_RANGE_CHECK:%.*]], label [[BOUND_CHECK_FAILED:%.*]] ; CHECK: do_range_check: ; CHECK-NEXT: call void @llvm.assume(i1 [[BOUND_CHECK]]) ; CHECK-NEXT: [[RANGE_CHECK_ULT:%.*]] = icmp ult i32 [[EL]], [[LEN]] ; CHECK-NEXT: [[WC:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXPLICIT_GUARD_COND:%.*]] = and i1 [[RANGE_CHECK_ULT]], [[WC]] ; CHECK-NEXT: br i1 [[EXPLICIT_GUARD_COND]], label [[BACKEDGE]], label [[DEOPT:%.*]] ; CHECK: backedge: ; CHECK-NEXT: [[ARR_PTR:%.*]] = getelementptr i32, ptr [[ARR:%.*]], i32 [[EL]] ; CHECK-NEXT: store i32 [[IV]], ptr [[ARR_PTR]], align 4 ; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1 ; CHECK-NEXT: [[LOOP_COND:%.*]] = icmp slt i32 [[IV_NEXT]], [[N:%.*]] ; CHECK-NEXT: br i1 [[LOOP_COND]], label [[LOOP]], label [[EXIT:%.*]] ; CHECK: deopt: ; CHECK-NEXT: [[DEOPT_RES:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPT_RES]] ; CHECK: exit: ; CHECK-NEXT: ret i32 0 ; CHECK: bound_check_failed: ; CHECK-NEXT: ret i32 -1 ; entry: %len = load i32, ptr %len_p, align 4, !noundef !0, !range !1 br label %loop loop: %iv = phi i32 [ 0, %entry ], [ %iv.next, %backedge ] %el.ptr = getelementptr i32, ptr %p, i32 %iv %el = load i32, ptr %el.ptr, align 4 %bound_check = icmp ult i32 %el, 128 br i1 %bound_check, label %do_range_check, label %bound_check_failed do_range_check: call void @llvm.assume(i1 %bound_check) %range_check.ult = icmp ult i32 %el, %len %wc = call i1 @llvm.experimental.widenable.condition() %explicit_guard_cond = and i1 %range_check.ult, %wc br i1 %explicit_guard_cond, label %backedge, label %deopt backedge: %arr.ptr = getelementptr i32, ptr %arr, i32 %el store i32 %iv, ptr %arr.ptr, align 4 %iv.next = add i32 %iv, 1 %loop_cond = icmp slt i32 %iv.next, %n br i1 %loop_cond, label %loop, label %exit deopt: %deopt_res = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ret i32 %deopt_res exit: ret i32 0 bound_check_failed: ret i32 -1 } define i32 @test_slt(ptr noundef %p, i32 noundef %n, ptr noundef %arr, ptr noundef %len_p, i32 noundef %c) { ; CHECK-LABEL: @test_slt( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[LEN:%.*]] = load i32, ptr [[LEN_P:%.*]], align 4, !range [[RNG0]], !noundef !1 ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ] ; CHECK-NEXT: [[EL_PTR:%.*]] = getelementptr i32, ptr [[P:%.*]], i32 [[IV]] ; CHECK-NEXT: [[EL:%.*]] = load i32, ptr [[EL_PTR]], align 4 ; CHECK-NEXT: [[BOUND_CHECK:%.*]] = icmp slt i32 [[EL]], 128 ; CHECK-NEXT: br i1 [[BOUND_CHECK]], label [[DO_RANGE_CHECK:%.*]], label [[BOUND_CHECK_FAILED:%.*]] ; CHECK: do_range_check: ; CHECK-NEXT: call void @llvm.assume(i1 [[BOUND_CHECK]]) ; CHECK-NEXT: [[RANGE_CHECK_SLT:%.*]] = icmp slt i32 [[EL]], [[LEN]] ; CHECK-NEXT: [[WC:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXPLICIT_GUARD_COND:%.*]] = and i1 [[RANGE_CHECK_SLT]], [[WC]] ; CHECK-NEXT: br i1 [[EXPLICIT_GUARD_COND]], label [[BACKEDGE]], label [[DEOPT:%.*]] ; CHECK: backedge: ; CHECK-NEXT: [[ARR_PTR:%.*]] = getelementptr i32, ptr [[ARR:%.*]], i32 [[EL]] ; CHECK-NEXT: store i32 [[IV]], ptr [[ARR_PTR]], align 4 ; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1 ; CHECK-NEXT: [[LOOP_COND:%.*]] = icmp ult i32 [[IV_NEXT]], [[N:%.*]] ; CHECK-NEXT: br i1 [[LOOP_COND]], label [[LOOP]], label [[EXIT:%.*]] ; CHECK: deopt: ; CHECK-NEXT: [[DEOPT_RES:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPT_RES]] ; CHECK: exit: ; CHECK-NEXT: ret i32 0 ; CHECK: bound_check_failed: ; CHECK-NEXT: ret i32 -1 ; entry: %len = load i32, ptr %len_p, align 4, !noundef !0, !range !1 br label %loop loop: %iv = phi i32 [ 0, %entry ], [ %iv.next, %backedge ] %el.ptr = getelementptr i32, ptr %p, i32 %iv %el = load i32, ptr %el.ptr, align 4 %bound_check = icmp slt i32 %el, 128 br i1 %bound_check, label %do_range_check, label %bound_check_failed do_range_check: call void @llvm.assume(i1 %bound_check) %range_check.slt = icmp slt i32 %el, %len %wc = call i1 @llvm.experimental.widenable.condition() %explicit_guard_cond = and i1 %range_check.slt, %wc br i1 %explicit_guard_cond, label %backedge, label %deopt backedge: %arr.ptr = getelementptr i32, ptr %arr, i32 %el store i32 %iv, ptr %arr.ptr, align 4 %iv.next = add i32 %iv, 1 %loop_cond = icmp ult i32 %iv.next, %n br i1 %loop_cond, label %loop, label %exit deopt: %deopt_res = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ret i32 %deopt_res exit: ret i32 0 bound_check_failed: ret i32 -1 } define i32 @test_ule(ptr noundef %p, i32 noundef %n, ptr noundef %arr, ptr noundef %len_p, i32 noundef %c) { ; CHECK-LABEL: @test_ule( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[LEN:%.*]] = load i32, ptr [[LEN_P:%.*]], align 4, !range [[RNG0]], !noundef !1 ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ] ; CHECK-NEXT: [[EL_PTR:%.*]] = getelementptr i32, ptr [[P:%.*]], i32 [[IV]] ; CHECK-NEXT: [[EL:%.*]] = load i32, ptr [[EL_PTR]], align 4 ; CHECK-NEXT: [[BOUND_CHECK:%.*]] = icmp ult i32 [[EL]], 128 ; CHECK-NEXT: br i1 [[BOUND_CHECK]], label [[DO_RANGE_CHECK:%.*]], label [[BOUND_CHECK_FAILED:%.*]] ; CHECK: do_range_check: ; CHECK-NEXT: call void @llvm.assume(i1 [[BOUND_CHECK]]) ; CHECK-NEXT: [[RANGE_CHECK_ULE:%.*]] = icmp ule i32 [[EL]], [[LEN]] ; CHECK-NEXT: [[WC:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXPLICIT_GUARD_COND:%.*]] = and i1 [[RANGE_CHECK_ULE]], [[WC]] ; CHECK-NEXT: br i1 [[EXPLICIT_GUARD_COND]], label [[BACKEDGE]], label [[DEOPT:%.*]] ; CHECK: backedge: ; CHECK-NEXT: [[ARR_PTR:%.*]] = getelementptr i32, ptr [[ARR:%.*]], i32 [[EL]] ; CHECK-NEXT: store i32 [[IV]], ptr [[ARR_PTR]], align 4 ; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1 ; CHECK-NEXT: [[LOOP_COND:%.*]] = icmp ult i32 [[IV_NEXT]], [[N:%.*]] ; CHECK-NEXT: br i1 [[LOOP_COND]], label [[LOOP]], label [[EXIT:%.*]] ; CHECK: deopt: ; CHECK-NEXT: [[DEOPT_RES:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPT_RES]] ; CHECK: exit: ; CHECK-NEXT: ret i32 0 ; CHECK: bound_check_failed: ; CHECK-NEXT: ret i32 -1 ; entry: %len = load i32, ptr %len_p, align 4, !noundef !0, !range !1 br label %loop loop: %iv = phi i32 [ 0, %entry ], [ %iv.next, %backedge ] %el.ptr = getelementptr i32, ptr %p, i32 %iv %el = load i32, ptr %el.ptr, align 4 %bound_check = icmp ult i32 %el, 128 br i1 %bound_check, label %do_range_check, label %bound_check_failed do_range_check: call void @llvm.assume(i1 %bound_check) %range_check.ule = icmp ule i32 %el, %len %wc = call i1 @llvm.experimental.widenable.condition() %explicit_guard_cond = and i1 %range_check.ule, %wc br i1 %explicit_guard_cond, label %backedge, label %deopt backedge: %arr.ptr = getelementptr i32, ptr %arr, i32 %el store i32 %iv, ptr %arr.ptr, align 4 %iv.next = add i32 %iv, 1 %loop_cond = icmp ult i32 %iv.next, %n br i1 %loop_cond, label %loop, label %exit deopt: %deopt_res = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ret i32 %deopt_res exit: ret i32 0 bound_check_failed: ret i32 -1 } define i32 @test_sle(ptr noundef %p, i32 noundef %n, ptr noundef %arr, ptr noundef %len_p, i32 noundef %c) { ; CHECK-LABEL: @test_sle( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[LEN:%.*]] = load i32, ptr [[LEN_P:%.*]], align 4, !range [[RNG0]], !noundef !1 ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ] ; CHECK-NEXT: [[EL_PTR:%.*]] = getelementptr i32, ptr [[P:%.*]], i32 [[IV]] ; CHECK-NEXT: [[EL:%.*]] = load i32, ptr [[EL_PTR]], align 4 ; CHECK-NEXT: [[BOUND_CHECK:%.*]] = icmp slt i32 [[EL]], 128 ; CHECK-NEXT: br i1 [[BOUND_CHECK]], label [[DO_RANGE_CHECK:%.*]], label [[BOUND_CHECK_FAILED:%.*]] ; CHECK: do_range_check: ; CHECK-NEXT: call void @llvm.assume(i1 [[BOUND_CHECK]]) ; CHECK-NEXT: [[RANGE_CHECK_SLE:%.*]] = icmp sle i32 [[EL]], [[LEN]] ; CHECK-NEXT: [[WC:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXPLICIT_GUARD_COND:%.*]] = and i1 [[RANGE_CHECK_SLE]], [[WC]] ; CHECK-NEXT: br i1 [[EXPLICIT_GUARD_COND]], label [[BACKEDGE]], label [[DEOPT:%.*]] ; CHECK: backedge: ; CHECK-NEXT: [[ARR_PTR:%.*]] = getelementptr i32, ptr [[ARR:%.*]], i32 [[EL]] ; CHECK-NEXT: store i32 [[IV]], ptr [[ARR_PTR]], align 4 ; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1 ; CHECK-NEXT: [[LOOP_COND:%.*]] = icmp ult i32 [[IV_NEXT]], [[N:%.*]] ; CHECK-NEXT: br i1 [[LOOP_COND]], label [[LOOP]], label [[EXIT:%.*]] ; CHECK: deopt: ; CHECK-NEXT: [[DEOPT_RES:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPT_RES]] ; CHECK: exit: ; CHECK-NEXT: ret i32 0 ; CHECK: bound_check_failed: ; CHECK-NEXT: ret i32 -1 ; entry: %len = load i32, ptr %len_p, align 4, !noundef !0, !range !1 br label %loop loop: %iv = phi i32 [ 0, %entry ], [ %iv.next, %backedge ] %el.ptr = getelementptr i32, ptr %p, i32 %iv %el = load i32, ptr %el.ptr, align 4 %bound_check = icmp slt i32 %el, 128 br i1 %bound_check, label %do_range_check, label %bound_check_failed do_range_check: call void @llvm.assume(i1 %bound_check) %range_check.sle = icmp sle i32 %el, %len %wc = call i1 @llvm.experimental.widenable.condition() %explicit_guard_cond = and i1 %range_check.sle, %wc br i1 %explicit_guard_cond, label %backedge, label %deopt backedge: %arr.ptr = getelementptr i32, ptr %arr, i32 %el store i32 %iv, ptr %arr.ptr, align 4 %iv.next = add i32 %iv, 1 %loop_cond = icmp ult i32 %iv.next, %n br i1 %loop_cond, label %loop, label %exit deopt: %deopt_res = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ret i32 %deopt_res exit: ret i32 0 bound_check_failed: ret i32 -1 } define i32 @test_ugt(ptr noundef %p, i32 noundef %n, ptr noundef %arr, ptr noundef %len_p, i32 noundef %c) { ; CHECK-LABEL: @test_ugt( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[LEN:%.*]] = load i32, ptr [[LEN_P:%.*]], align 4, !range [[RNG0]], !noundef !1 ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ] ; CHECK-NEXT: [[EL_PTR:%.*]] = getelementptr i32, ptr [[P:%.*]], i32 [[IV]] ; CHECK-NEXT: [[EL:%.*]] = load i32, ptr [[EL_PTR]], align 4 ; CHECK-NEXT: [[BOUND_CHECK:%.*]] = icmp ult i32 [[EL]], 128 ; CHECK-NEXT: br i1 [[BOUND_CHECK]], label [[DO_RANGE_CHECK:%.*]], label [[BOUND_CHECK_FAILED:%.*]] ; CHECK: do_range_check: ; CHECK-NEXT: call void @llvm.assume(i1 [[BOUND_CHECK]]) ; CHECK-NEXT: [[RANGE_CHECK_SLE:%.*]] = icmp ugt i32 [[LEN]], [[EL]] ; CHECK-NEXT: [[WC:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXPLICIT_GUARD_COND:%.*]] = and i1 [[RANGE_CHECK_SLE]], [[WC]] ; CHECK-NEXT: br i1 [[EXPLICIT_GUARD_COND]], label [[BACKEDGE]], label [[DEOPT:%.*]] ; CHECK: backedge: ; CHECK-NEXT: [[ARR_PTR:%.*]] = getelementptr i32, ptr [[ARR:%.*]], i32 [[EL]] ; CHECK-NEXT: store i32 [[IV]], ptr [[ARR_PTR]], align 4 ; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1 ; CHECK-NEXT: [[LOOP_COND:%.*]] = icmp ult i32 [[IV_NEXT]], [[N:%.*]] ; CHECK-NEXT: br i1 [[LOOP_COND]], label [[LOOP]], label [[EXIT:%.*]] ; CHECK: deopt: ; CHECK-NEXT: [[DEOPT_RES:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPT_RES]] ; CHECK: exit: ; CHECK-NEXT: ret i32 0 ; CHECK: bound_check_failed: ; CHECK-NEXT: ret i32 -1 ; entry: %len = load i32, ptr %len_p, align 4, !noundef !0, !range !1 br label %loop loop: %iv = phi i32 [ 0, %entry ], [ %iv.next, %backedge ] %el.ptr = getelementptr i32, ptr %p, i32 %iv %el = load i32, ptr %el.ptr, align 4 %bound_check = icmp ult i32 %el, 128 br i1 %bound_check, label %do_range_check, label %bound_check_failed do_range_check: call void @llvm.assume(i1 %bound_check) %range_check.sle = icmp ugt i32 %len, %el %wc = call i1 @llvm.experimental.widenable.condition() %explicit_guard_cond = and i1 %range_check.sle, %wc br i1 %explicit_guard_cond, label %backedge, label %deopt backedge: %arr.ptr = getelementptr i32, ptr %arr, i32 %el store i32 %iv, ptr %arr.ptr, align 4 %iv.next = add i32 %iv, 1 %loop_cond = icmp ult i32 %iv.next, %n br i1 %loop_cond, label %loop, label %exit deopt: %deopt_res = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ret i32 %deopt_res exit: ret i32 0 bound_check_failed: ret i32 -1 } define i32 @test_uge(ptr noundef %p, i32 noundef %n, ptr noundef %arr, ptr noundef %len_p, i32 noundef %c) { ; CHECK-LABEL: @test_uge( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[LEN:%.*]] = load i32, ptr [[LEN_P:%.*]], align 4, !range [[RNG0]], !noundef !1 ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ] ; CHECK-NEXT: [[EL_PTR:%.*]] = getelementptr i32, ptr [[P:%.*]], i32 [[IV]] ; CHECK-NEXT: [[EL:%.*]] = load i32, ptr [[EL_PTR]], align 4 ; CHECK-NEXT: [[BOUND_CHECK:%.*]] = icmp ult i32 [[EL]], 128 ; CHECK-NEXT: br i1 [[BOUND_CHECK]], label [[DO_RANGE_CHECK:%.*]], label [[BOUND_CHECK_FAILED:%.*]] ; CHECK: do_range_check: ; CHECK-NEXT: call void @llvm.assume(i1 [[BOUND_CHECK]]) ; CHECK-NEXT: [[RANGE_CHECK_SLE:%.*]] = icmp uge i32 [[LEN]], [[EL]] ; CHECK-NEXT: [[WC:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXPLICIT_GUARD_COND:%.*]] = and i1 [[RANGE_CHECK_SLE]], [[WC]] ; CHECK-NEXT: br i1 [[EXPLICIT_GUARD_COND]], label [[BACKEDGE]], label [[DEOPT:%.*]] ; CHECK: backedge: ; CHECK-NEXT: [[ARR_PTR:%.*]] = getelementptr i32, ptr [[ARR:%.*]], i32 [[EL]] ; CHECK-NEXT: store i32 [[IV]], ptr [[ARR_PTR]], align 4 ; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1 ; CHECK-NEXT: [[LOOP_COND:%.*]] = icmp ult i32 [[IV_NEXT]], [[N:%.*]] ; CHECK-NEXT: br i1 [[LOOP_COND]], label [[LOOP]], label [[EXIT:%.*]] ; CHECK: deopt: ; CHECK-NEXT: [[DEOPT_RES:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPT_RES]] ; CHECK: exit: ; CHECK-NEXT: ret i32 0 ; CHECK: bound_check_failed: ; CHECK-NEXT: ret i32 -1 ; entry: %len = load i32, ptr %len_p, align 4, !noundef !0, !range !1 br label %loop loop: %iv = phi i32 [ 0, %entry ], [ %iv.next, %backedge ] %el.ptr = getelementptr i32, ptr %p, i32 %iv %el = load i32, ptr %el.ptr, align 4 %bound_check = icmp ult i32 %el, 128 br i1 %bound_check, label %do_range_check, label %bound_check_failed do_range_check: call void @llvm.assume(i1 %bound_check) %range_check.sle = icmp uge i32 %len, %el %wc = call i1 @llvm.experimental.widenable.condition() %explicit_guard_cond = and i1 %range_check.sle, %wc br i1 %explicit_guard_cond, label %backedge, label %deopt backedge: %arr.ptr = getelementptr i32, ptr %arr, i32 %el store i32 %iv, ptr %arr.ptr, align 4 %iv.next = add i32 %iv, 1 %loop_cond = icmp ult i32 %iv.next, %n br i1 %loop_cond, label %loop, label %exit deopt: %deopt_res = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ret i32 %deopt_res exit: ret i32 0 bound_check_failed: ret i32 -1 } define i32 @test_sgt(ptr noundef %p, i32 noundef %n, ptr noundef %arr, ptr noundef %len_p, i32 noundef %c) { ; CHECK-LABEL: @test_sgt( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[LEN:%.*]] = load i32, ptr [[LEN_P:%.*]], align 4, !range [[RNG0]], !noundef !1 ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ] ; CHECK-NEXT: [[EL_PTR:%.*]] = getelementptr i32, ptr [[P:%.*]], i32 [[IV]] ; CHECK-NEXT: [[EL:%.*]] = load i32, ptr [[EL_PTR]], align 4 ; CHECK-NEXT: [[BOUND_CHECK:%.*]] = icmp slt i32 [[EL]], 128 ; CHECK-NEXT: br i1 [[BOUND_CHECK]], label [[DO_RANGE_CHECK:%.*]], label [[BOUND_CHECK_FAILED:%.*]] ; CHECK: do_range_check: ; CHECK-NEXT: call void @llvm.assume(i1 [[BOUND_CHECK]]) ; CHECK-NEXT: [[RANGE_CHECK_SLE:%.*]] = icmp sgt i32 [[LEN]], [[EL]] ; CHECK-NEXT: [[WC:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXPLICIT_GUARD_COND:%.*]] = and i1 [[RANGE_CHECK_SLE]], [[WC]] ; CHECK-NEXT: br i1 [[EXPLICIT_GUARD_COND]], label [[BACKEDGE]], label [[DEOPT:%.*]] ; CHECK: backedge: ; CHECK-NEXT: [[ARR_PTR:%.*]] = getelementptr i32, ptr [[ARR:%.*]], i32 [[EL]] ; CHECK-NEXT: store i32 [[IV]], ptr [[ARR_PTR]], align 4 ; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1 ; CHECK-NEXT: [[LOOP_COND:%.*]] = icmp ult i32 [[IV_NEXT]], [[N:%.*]] ; CHECK-NEXT: br i1 [[LOOP_COND]], label [[LOOP]], label [[EXIT:%.*]] ; CHECK: deopt: ; CHECK-NEXT: [[DEOPT_RES:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPT_RES]] ; CHECK: exit: ; CHECK-NEXT: ret i32 0 ; CHECK: bound_check_failed: ; CHECK-NEXT: ret i32 -1 ; entry: %len = load i32, ptr %len_p, align 4, !noundef !0, !range !1 br label %loop loop: %iv = phi i32 [ 0, %entry ], [ %iv.next, %backedge ] %el.ptr = getelementptr i32, ptr %p, i32 %iv %el = load i32, ptr %el.ptr, align 4 %bound_check = icmp slt i32 %el, 128 br i1 %bound_check, label %do_range_check, label %bound_check_failed do_range_check: call void @llvm.assume(i1 %bound_check) %range_check.sle = icmp sgt i32 %len, %el %wc = call i1 @llvm.experimental.widenable.condition() %explicit_guard_cond = and i1 %range_check.sle, %wc br i1 %explicit_guard_cond, label %backedge, label %deopt backedge: %arr.ptr = getelementptr i32, ptr %arr, i32 %el store i32 %iv, ptr %arr.ptr, align 4 %iv.next = add i32 %iv, 1 %loop_cond = icmp ult i32 %iv.next, %n br i1 %loop_cond, label %loop, label %exit deopt: %deopt_res = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ret i32 %deopt_res exit: ret i32 0 bound_check_failed: ret i32 -1 } define i32 @test_sge(ptr noundef %p, i32 noundef %n, ptr noundef %arr, ptr noundef %len_p, i32 noundef %c) { ; CHECK-LABEL: @test_sge( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[LEN:%.*]] = load i32, ptr [[LEN_P:%.*]], align 4, !range [[RNG0]], !noundef !1 ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[BACKEDGE:%.*]] ] ; CHECK-NEXT: [[EL_PTR:%.*]] = getelementptr i32, ptr [[P:%.*]], i32 [[IV]] ; CHECK-NEXT: [[EL:%.*]] = load i32, ptr [[EL_PTR]], align 4 ; CHECK-NEXT: [[BOUND_CHECK:%.*]] = icmp slt i32 [[EL]], 128 ; CHECK-NEXT: br i1 [[BOUND_CHECK]], label [[DO_RANGE_CHECK:%.*]], label [[BOUND_CHECK_FAILED:%.*]] ; CHECK: do_range_check: ; CHECK-NEXT: call void @llvm.assume(i1 [[BOUND_CHECK]]) ; CHECK-NEXT: [[RANGE_CHECK_SLE:%.*]] = icmp sge i32 [[LEN]], [[EL]] ; CHECK-NEXT: [[WC:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXPLICIT_GUARD_COND:%.*]] = and i1 [[RANGE_CHECK_SLE]], [[WC]] ; CHECK-NEXT: br i1 [[EXPLICIT_GUARD_COND]], label [[BACKEDGE]], label [[DEOPT:%.*]] ; CHECK: backedge: ; CHECK-NEXT: [[ARR_PTR:%.*]] = getelementptr i32, ptr [[ARR:%.*]], i32 [[EL]] ; CHECK-NEXT: store i32 [[IV]], ptr [[ARR_PTR]], align 4 ; CHECK-NEXT: [[IV_NEXT]] = add i32 [[IV]], 1 ; CHECK-NEXT: [[LOOP_COND:%.*]] = icmp ult i32 [[IV_NEXT]], [[N:%.*]] ; CHECK-NEXT: br i1 [[LOOP_COND]], label [[LOOP]], label [[EXIT:%.*]] ; CHECK: deopt: ; CHECK-NEXT: [[DEOPT_RES:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPT_RES]] ; CHECK: exit: ; CHECK-NEXT: ret i32 0 ; CHECK: bound_check_failed: ; CHECK-NEXT: ret i32 -1 ; entry: %len = load i32, ptr %len_p, align 4, !noundef !0, !range !1 br label %loop loop: %iv = phi i32 [ 0, %entry ], [ %iv.next, %backedge ] %el.ptr = getelementptr i32, ptr %p, i32 %iv %el = load i32, ptr %el.ptr, align 4 %bound_check = icmp slt i32 %el, 128 br i1 %bound_check, label %do_range_check, label %bound_check_failed do_range_check: call void @llvm.assume(i1 %bound_check) %range_check.sle = icmp sge i32 %len, %el %wc = call i1 @llvm.experimental.widenable.condition() %explicit_guard_cond = and i1 %range_check.sle, %wc br i1 %explicit_guard_cond, label %backedge, label %deopt backedge: %arr.ptr = getelementptr i32, ptr %arr, i32 %el store i32 %iv, ptr %arr.ptr, align 4 %iv.next = add i32 %iv, 1 %loop_cond = icmp ult i32 %iv.next, %n br i1 %loop_cond, label %loop, label %exit deopt: %deopt_res = call i32 (...) @llvm.experimental.deoptimize.i32() [ "deopt"() ] ret i32 %deopt_res exit: ret i32 0 bound_check_failed: ret i32 -1 } ; Function Attrs: inaccessiblememonly nocallback nofree nosync nounwind speculatable willreturn declare i1 @llvm.experimental.widenable.condition() #1 declare i32 @llvm.experimental.deoptimize.i32(...) declare void @llvm.assume(i1) attributes #1 = { inaccessiblememonly nocallback nofree nosync nounwind speculatable willreturn } !0 = !{} !1 = !{i32 0, i32 2147483646}