1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; Check that negative oob gep do not generate invalid check. 3; RUN: opt < %s -passes=bounds-checking -S | FileCheck %s 4target datalayout = "e-p:64:64:64-p1:16:16:16-p2:64:64:64:48-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 5 6 7@str = global [100 x i8] zeroinitializer, align 1 8 9define i16 @main() { 10; CHECK-LABEL: @main( 11; CHECK-NEXT: entry: 12; CHECK-NEXT: br label [[FOR_COND:%.*]] 13; CHECK: for.cond: 14; CHECK-NEXT: [[I_0:%.*]] = phi i8 [ 65, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[TMP4:%.*]] ] 15; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i8 [[I_0]], 76 16; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END:%.*]], label [[TMP4]] 17; CHECK: for.inc: 18; CHECK-NEXT: [[I_0_C:%.*]] = sext i8 [[I_0]] to i64 19; CHECK-NEXT: [[TMP0:%.*]] = add i64 -65, [[I_0_C]] 20; CHECK-NEXT: [[GEP:%.*]] = getelementptr i8, ptr getelementptr (i8, ptr @str, i8 -65), i8 [[I_0]] 21; CHECK-NEXT: [[TMP1:%.*]] = sub i64 100, [[TMP0]] 22; CHECK-NEXT: store i8 [[I_0]], ptr [[GEP]], align 1 23; CHECK-NEXT: [[INC]] = add nuw nsw i8 [[I_0]], 1 24; CHECK-NEXT: br label [[FOR_COND]] 25; CHECK: for.end: 26; CHECK-NEXT: ret i16 0 27; 28entry: 29 br label %for.cond 30 31for.cond: 32 %i.0 = phi i8 [ 65, %entry ], [ %inc, %for.inc ] 33 %exitcond.not = icmp eq i8 %i.0, 76 34 br i1 %exitcond.not, label %for.end, label %for.inc 35 36for.inc: ; preds = %for.cond 37 %gep = getelementptr i8, ptr getelementptr (i8, ptr @str, i8 -65), i8 %i.0 38 store i8 %i.0, ptr %gep, align 1 39 %inc = add nuw nsw i8 %i.0, 1 40 br label %for.cond 41 42for.end: 43 ret i16 0 44} 45 46