| ; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s |
| ; PR1101 |
| |
| @A = weak global [1000 x i32] zeroinitializer, align 32 |
| |
| ; CHECK: backedge-taken count is 4 |
| |
| define void @test(i32 %N) { |
| entry: |
| br label %bb3 |
| |
| bb: ; preds = %bb3 |
| %tmp = getelementptr [1000 x i32], [1000 x i32]* @A, i32 0, i32 %i.0 ; <i32*> [#uses=1] |
| store i32 123, i32* %tmp |
| %tmp4 = mul i32 %i.0, 4 ; <i32> [#uses=1] |
| %tmp5 = or i32 %tmp4, 1 |
| %tmp61 = xor i32 %tmp5, -2147483648 |
| %tmp6 = trunc i32 %tmp61 to i16 |
| %tmp71 = shl i16 %tmp6, 2 |
| %tmp7 = zext i16 %tmp71 to i32 |
| %tmp2 = add i32 %tmp7, %i.0 |
| br label %bb3 |
| |
| bb3: ; preds = %bb, %entry |
| %i.0 = phi i32 [ 0, %entry ], [ %tmp2, %bb ] ; <i32> [#uses=3] |
| %tmp3 = icmp sle i32 %i.0, 9999 ; <i1> [#uses=1] |
| br i1 %tmp3, label %bb, label %bb5 |
| |
| bb5: ; preds = %bb3 |
| br label %return |
| |
| return: ; preds = %bb5 |
| ret void |
| } |
