| Andrew Trick | 020dd89 | 2014-01-02 19:29:38 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -indvars -S | FileCheck %s |
| 2 | |
| 3 | target triple = "x86_64-apple-darwin" |
| 4 | |
| 5 | ; CHECK-LABEL: @sloop |
| 6 | ; CHECK-LABEL: B18: |
| 7 | ; Only one phi now. |
| 8 | ; CHECK: phi |
| 9 | ; CHECK-NOT: phi |
| Andrew Trick | e4a1860 | 2014-01-07 06:59:12 +0000 | [diff] [blame] | 10 | ; One trunc for the gep. |
| Andrew Trick | 020dd89 | 2014-01-02 19:29:38 +0000 | [diff] [blame] | 11 | ; CHECK: trunc i64 %indvars.iv to i32 |
| Andrew Trick | e4a1860 | 2014-01-07 06:59:12 +0000 | [diff] [blame] | 12 | ; One trunc for the dummy() call. |
| 13 | ; CHECK-LABEL: exit24: |
| 14 | ; CHECK: trunc i64 {{.*}}lcssa.wide to i32 |
| Andrew Trick | 020dd89 | 2014-01-02 19:29:38 +0000 | [diff] [blame] | 15 | define void @sloop(i32* %a) { |
| 16 | Prologue: |
| 17 | br i1 undef, label %B18, label %B6 |
| 18 | |
| 19 | B18: ; preds = %B24, %Prologue |
| 20 | %.02 = phi i32 [ 0, %Prologue ], [ %tmp33, %B24 ] |
| 21 | %tmp23 = zext i32 %.02 to i64 |
| 22 | %tmp33 = add i32 %.02, 1 |
| 23 | %o = getelementptr i32* %a, i32 %.02 |
| 24 | %v = load i32* %o |
| 25 | %t = icmp eq i32 %v, 0 |
| 26 | br i1 %t, label %exit24, label %B24 |
| 27 | |
| 28 | B24: ; preds = %B18 |
| 29 | %t2 = icmp eq i32 %tmp33, 20 |
| 30 | br i1 %t2, label %B6, label %B18 |
| 31 | |
| 32 | B6: ; preds = %Prologue |
| 33 | ret void |
| 34 | |
| 35 | exit24: ; preds = %B18 |
| 36 | call void @dummy(i32 %.02) |
| 37 | unreachable |
| 38 | } |
| 39 | |
| 40 | declare void @dummy(i32) |