| ; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s |
| |
| ; CHECK: %tmp3 = sext i8 %tmp2 to i32 |
| ; CHECK: --> (sext i8 {0,+,1}<%bb1> to i32) Exits: -1 |
| ; CHECK: %tmp4 = mul i32 %tmp3, %i.02 |
| ; CHECK: --> ((sext i8 {0,+,1}<%bb1> to i32) * {0,+,1}<%bb>) Exits: {0,+,-1}<%bb> |
| |
| ; These sexts are not foldable. |
| |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64" |
| |
| @table = common global [32 x [256 x i32]] zeroinitializer, align 32 ; <[32 x [256 x i32]]*> [#uses=2] |
| |
| define i32 @main() nounwind { |
| entry: |
| br i1 false, label %bb5, label %bb.nph3 |
| |
| bb.nph3: ; preds = %entry |
| br label %bb |
| |
| bb: ; preds = %bb4, %bb.nph3 |
| %i.02 = phi i32 [ %tmp10, %bb4 ], [ 0, %bb.nph3 ] ; <i32> [#uses=3] |
| br i1 false, label %bb3, label %bb.nph |
| |
| bb.nph: ; preds = %bb |
| br label %bb1 |
| |
| bb1: ; preds = %bb2, %bb.nph |
| %j.01 = phi i32 [ %tmp8, %bb2 ], [ 0, %bb.nph ] ; <i32> [#uses=3] |
| %tmp2 = trunc i32 %j.01 to i8 ; <i8> [#uses=1] |
| %tmp3 = sext i8 %tmp2 to i32 ; <i32> [#uses=1] |
| %tmp4 = mul i32 %tmp3, %i.02 ; <i32> [#uses=1] |
| %tmp5 = sext i32 %i.02 to i64 ; <i64> [#uses=1] |
| %tmp6 = sext i32 %j.01 to i64 ; <i64> [#uses=1] |
| %tmp7 = getelementptr [32 x [256 x i32]]* @table, i64 0, i64 %tmp5, i64 %tmp6 ; <i32*> [#uses=1] |
| store i32 %tmp4, i32* %tmp7, align 4 |
| %tmp8 = add i32 %j.01, 1 ; <i32> [#uses=2] |
| br label %bb2 |
| |
| bb2: ; preds = %bb1 |
| %phitmp1 = icmp sgt i32 %tmp8, 255 ; <i1> [#uses=1] |
| br i1 %phitmp1, label %bb2.bb3_crit_edge, label %bb1 |
| |
| bb2.bb3_crit_edge: ; preds = %bb2 |
| br label %bb3 |
| |
| bb3: ; preds = %bb2.bb3_crit_edge, %bb |
| %tmp10 = add i32 %i.02, 1 ; <i32> [#uses=2] |
| br label %bb4 |
| |
| bb4: ; preds = %bb3 |
| %phitmp = icmp sgt i32 %tmp10, 31 ; <i1> [#uses=1] |
| br i1 %phitmp, label %bb4.bb5_crit_edge, label %bb |
| |
| bb4.bb5_crit_edge: ; preds = %bb4 |
| br label %bb5 |
| |
| bb5: ; preds = %bb4.bb5_crit_edge, %entry |
| %tmp12 = load i32* getelementptr ([32 x [256 x i32]]* @table, i64 0, i64 9, i64 132), align 16 ; <i32> [#uses=1] |
| %tmp13 = icmp eq i32 %tmp12, -1116 ; <i1> [#uses=1] |
| br i1 %tmp13, label %bb7, label %bb6 |
| |
| bb6: ; preds = %bb5 |
| call void @abort() noreturn nounwind |
| unreachable |
| |
| bb7: ; preds = %bb5 |
| br label %return |
| |
| return: ; preds = %bb7 |
| ret i32 0 |
| } |
| |
| declare void @abort() noreturn nounwind |
