1 ; RUN: llc < %s -mcpu=a2 | FileCheck %s
2 ; RUN: llc < %s -mcpu=a2 -disable-lsr | FileCheck -check-prefix=NOLSR %s
3 target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
4 target triple = "powerpc64-unknown-linux-gnu"
6 define void @main() #0 {
8 br i1 undef, label %for.end, label %for.body
10 for.body: ; preds = %for.body, %entry
11 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 1, %entry ]
12 %indvars.iv.next = add i64 %indvars.iv, 1
13 %lftr.wideiv = trunc i64 %indvars.iv.next to i32
14 %exitcond = icmp eq i32 %lftr.wideiv, 0
15 br i1 %exitcond, label %for.end, label %for.body
17 ; FIXME: We currently can't form the 32-bit unsigned trip count necessary here!
21 for.end: ; preds = %for.body, %entry
25 define void @main1() #0 {
27 br i1 undef, label %for.end, label %for.body
29 for.body: ; preds = %for.body, %entry
30 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 1, %entry ]
31 %indvars.iv.next = add i64 %indvars.iv, 1
32 %exitcond = icmp eq i64 %indvars.iv.next, 0
33 br i1 %exitcond, label %for.end, label %for.body
36 ; CHECK: li [[REG:[0-9]+]], -1
37 ; CHECK: mtctr [[REG]]
40 for.end: ; preds = %for.body, %entry
44 define void @main2() #0 {
46 br i1 undef, label %for.end, label %for.body
48 for.body: ; preds = %for.body, %entry
49 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 1, %entry ]
50 %indvars.iv.next = add i64 %indvars.iv, 1
51 %exitcond = icmp eq i64 %indvars.iv.next, -100000
52 br i1 %exitcond, label %for.end, label %for.body
55 ; CHECK: lis [[REG:[0-9]+]], -2
56 ; CHECK: ori [[REG2:[0-9]+]], [[REG]], 31071
57 ; CHECK: mtctr [[REG2]]
60 for.end: ; preds = %for.body, %entry
64 define void @main3() #0 {
66 br i1 undef, label %for.end, label %for.body
68 for.body: ; preds = %for.body, %entry
69 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 127984, %entry ]
70 %indvars.iv.next = add i64 %indvars.iv, -16
71 %exitcond = icmp eq i64 %indvars.iv.next, -16
72 br i1 %exitcond, label %for.end, label %for.body
75 ; NOLSR: li [[REG:[0-9]+]], 8000
76 ; NOLSR: mtctr [[REG]]
79 for.end: ; preds = %for.body, %entry
83 attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }