1 ; RUN: opt < %s -basicaa -globalopt -instcombine -loop-rotate -licm -instcombine -indvars -loop-deletion -constmerge -S | FileCheck %s 2 ; PR11882: ComputeLoadConstantCompareExitLimit crash. 3 ; 4 ; for.body is deleted leaving a loop-invariant load. 5 ; CHECK-NOT: for.body 6 target datalayout = "e-p:64:64:64-n32:64" 7 8 @func_21_l_773 = external global i32, align 4 9 @g_814 = external global i32, align 4 10 @g_244 = internal global [1 x [0 x i32]] zeroinitializer, align 4 11 12 define void @func_21() nounwind uwtable ssp { 13 entry: 14 br label %lbl_818 15 16 lbl_818: ; preds = %for.end, %entry 17 call void (...) @func_27() 18 store i32 0, i32* @g_814, align 4 19 br label %for.cond 20 21 for.cond: ; preds = %for.body, %lbl_818 22 %0 = load i32, i32* @g_814, align 4 23 %cmp = icmp sle i32 %0, 0 24 br i1 %cmp, label %for.body, label %for.end 25 26 for.body: ; preds = %for.cond 27 %idxprom = sext i32 %0 to i64 28 %arrayidx = getelementptr inbounds [0 x i32], [0 x i32]* getelementptr inbounds ([1 x [0 x i32]], [1 x [0 x i32]]* @g_244, i32 0, i64 0), i32 0, i64 %idxprom 29 %1 = load i32, i32* %arrayidx, align 1 30 store i32 %1, i32* @func_21_l_773, align 4 31 store i32 1, i32* @g_814, align 4 32 br label %for.cond 33 34 for.end: ; preds = %for.cond 35 %2 = load i32, i32* @func_21_l_773, align 4 36 %tobool = icmp ne i32 %2, 0 37 br i1 %tobool, label %lbl_818, label %if.end 38 39 if.end: ; preds = %for.end 40 ret void 41 } 42 43 declare void @func_27(...) 44
