| ; RUN: opt < %s -indvars -S | FileCheck %s |
| |
| ; Provide legal integer types. |
| target datalayout = "n8:16:32:64" |
| |
| |
| target triple = "x86_64-apple-darwin" |
| |
| ; CHECK-LABEL: @sloop |
| ; CHECK-LABEL: B18: |
| ; Only one phi now. |
| ; CHECK: phi |
| ; CHECK-NOT: phi |
| ; One trunc for the gep. |
| ; CHECK: trunc i64 %indvars.iv to i32 |
| ; One trunc for the dummy() call. |
| ; CHECK-LABEL: exit24: |
| ; CHECK: trunc i64 {{.*}}lcssa.wide to i32 |
| define void @sloop(i32* %a) { |
| Prologue: |
| br i1 undef, label %B18, label %B6 |
| |
| B18: ; preds = %B24, %Prologue |
| %.02 = phi i32 [ 0, %Prologue ], [ %tmp33, %B24 ] |
| %tmp23 = zext i32 %.02 to i64 |
| %tmp33 = add i32 %.02, 1 |
| %o = getelementptr i32, i32* %a, i32 %.02 |
| %v = load i32, i32* %o |
| %t = icmp eq i32 %v, 0 |
| br i1 %t, label %exit24, label %B24 |
| |
| B24: ; preds = %B18 |
| %t2 = icmp eq i32 %tmp33, 20 |
| br i1 %t2, label %B6, label %B18 |
| |
| B6: ; preds = %Prologue |
| ret void |
| |
| exit24: ; preds = %B18 |
| call void @dummy(i32 %.02) |
| unreachable |
| } |
| |
| declare void @dummy(i32) |
