1 ; RUN: opt < %s -indvars -S | FileCheck %s
3 ; Provide legal integer types.
4 target datalayout = "n8:16:32:64"
7 target triple = "x86_64-apple-darwin"
14 ; One trunc for the gep.
15 ; CHECK: trunc i64 %indvars.iv to i32
16 ; One trunc for the dummy() call.
17 ; CHECK-LABEL: exit24:
18 ; CHECK: trunc i64 {{.*}}lcssa.wide to i32
19 define void @loop_0(i32* %a) {
21 br i1 undef, label %B18, label %B6
23 B18: ; preds = %B24, %Prologue
24 %.02 = phi i32 [ 0, %Prologue ], [ %tmp33, %B24 ]
25 %tmp23 = zext i32 %.02 to i64
26 %tmp33 = add i32 %.02, 1
27 %o = getelementptr i32, i32* %a, i32 %.02
28 %v = load i32, i32* %o
29 %t = icmp eq i32 %v, 0
30 br i1 %t, label %exit24, label %B24
33 %t2 = icmp eq i32 %tmp33, 20
34 br i1 %t2, label %B6, label %B18
36 B6: ; preds = %Prologue
39 exit24: ; preds = %B18
40 call void @dummy(i32 %.02)
44 define void @loop_1(i32 %lim) {
45 ; CHECK-LABEL: @loop_1(
47 %entry.cond = icmp ne i32 %lim, 0
48 br i1 %entry.cond, label %loop, label %leave
52 ; CHECK: %indvars.iv = phi i64 [ 1, %loop.preheader ], [ %indvars.iv.next, %loop ]
53 ; CHECK: %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
54 ; CHECK: [[IV_INC:%[^ ]+]] = add nsw i64 %indvars.iv, -1
55 ; CHECK: call void @dummy.i64(i64 [[IV_INC]])
57 %iv = phi i32 [ 1, %entry ], [ %iv.inc, %loop ]
58 %iv.inc = add i32 %iv, 1
59 %iv.inc.sub = add i32 %iv, -1
60 %iv.inc.sub.zext = zext i32 %iv.inc.sub to i64
61 call void @dummy.i64(i64 %iv.inc.sub.zext)
62 %be.cond = icmp ult i32 %iv.inc, %lim
63 br i1 %be.cond, label %loop, label %leave
69 declare void @dummy(i32)
70 declare void @dummy.i64(i64)