1 ; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s 2 3 ; CHECK: %tmp3 = sext i8 %tmp2 to i32 4 ; CHECK: --> (sext i8 {0,+,1}<%bb1> to i32) Exits: -1 5 ; CHECK: %tmp4 = mul i32 %tmp3, %i.02 6 ; CHECK: --> ((sext i8 {0,+,1}<%bb1> to i32) * {0,+,1}<%bb>) Exits: {0,+,-1}<%bb> 7 8 ; These sexts are not foldable. 9 10 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64" 11 12 @table = common global [32 x [256 x i32]] zeroinitializer, align 32 ; <[32 x [256 x i32]]*> [#uses=2] 13 14 define i32 @main() nounwind { 15 entry: 16 br i1 false, label %bb5, label %bb.nph3 17 18 bb.nph3: ; preds = %entry 19 br label %bb 20 21 bb: ; preds = %bb4, %bb.nph3 22 %i.02 = phi i32 [ %tmp10, %bb4 ], [ 0, %bb.nph3 ] ; <i32> [#uses=3] 23 br i1 false, label %bb3, label %bb.nph 24 25 bb.nph: ; preds = %bb 26 br label %bb1 27 28 bb1: ; preds = %bb2, %bb.nph 29 %j.01 = phi i32 [ %tmp8, %bb2 ], [ 0, %bb.nph ] ; <i32> [#uses=3] 30 %tmp2 = trunc i32 %j.01 to i8 ; <i8> [#uses=1] 31 %tmp3 = sext i8 %tmp2 to i32 ; <i32> [#uses=1] 32 %tmp4 = mul i32 %tmp3, %i.02 ; <i32> [#uses=1] 33 %tmp5 = sext i32 %i.02 to i64 ; <i64> [#uses=1] 34 %tmp6 = sext i32 %j.01 to i64 ; <i64> [#uses=1] 35 %tmp7 = getelementptr [32 x [256 x i32]]* @table, i64 0, i64 %tmp5, i64 %tmp6 ; <i32*> [#uses=1] 36 store i32 %tmp4, i32* %tmp7, align 4 37 %tmp8 = add i32 %j.01, 1 ; <i32> [#uses=2] 38 br label %bb2 39 40 bb2: ; preds = %bb1 41 %phitmp1 = icmp sgt i32 %tmp8, 255 ; <i1> [#uses=1] 42 br i1 %phitmp1, label %bb2.bb3_crit_edge, label %bb1 43 44 bb2.bb3_crit_edge: ; preds = %bb2 45 br label %bb3 46 47 bb3: ; preds = %bb2.bb3_crit_edge, %bb 48 %tmp10 = add i32 %i.02, 1 ; <i32> [#uses=2] 49 br label %bb4 50 51 bb4: ; preds = %bb3 52 %phitmp = icmp sgt i32 %tmp10, 31 ; <i1> [#uses=1] 53 br i1 %phitmp, label %bb4.bb5_crit_edge, label %bb 54 55 bb4.bb5_crit_edge: ; preds = %bb4 56 br label %bb5 57 58 bb5: ; preds = %bb4.bb5_crit_edge, %entry 59 %tmp12 = load i32* getelementptr ([32 x [256 x i32]]* @table, i64 0, i64 9, i64 132), align 16 ; <i32> [#uses=1] 60 %tmp13 = icmp eq i32 %tmp12, -1116 ; <i1> [#uses=1] 61 br i1 %tmp13, label %bb7, label %bb6 62 63 bb6: ; preds = %bb5 64 call void @abort() noreturn nounwind 65 unreachable 66 67 bb7: ; preds = %bb5 68 br label %return 69 70 return: ; preds = %bb7 71 ret i32 0 72 } 73 74 declare void @abort() noreturn nounwind 75
