1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -S -simplifycfg -mtriple=arm -mattr=+v6t2 < %s | FileCheck %s
3
4define i32 @ctlz(i32 %A) {
5; CHECK-LABEL: @ctlz(
6; CHECK-NEXT:  entry:
7; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[A:%.*]], 0
8; CHECK-NEXT:    [[TMP0:%.*]] = tail call i32 @llvm.ctlz.i32(i32 [[A]], i1 true)
9; CHECK-NEXT:    [[SPEC_SELECT:%.*]] = select i1 [[TOBOOL]], i32 32, i32 [[TMP0]]
10; CHECK-NEXT:    ret i32 [[SPEC_SELECT]]
11;
12entry:
13  %tobool = icmp eq i32 %A, 0
14  br i1 %tobool, label %cond.end, label %cond.true
15
16cond.true:
17  %0 = tail call i32 @llvm.ctlz.i32(i32 %A, i1 true)
18  br label %cond.end
19
20cond.end:
21  %cond = phi i32 [ %0, %cond.true ], [ 32, %entry ]
22  ret i32 %cond
23}
24
25define i32 @cttz(i32 %A) {
26; CHECK-LABEL: @cttz(
27; CHECK-NEXT:  entry:
28; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[A:%.*]], 0
29; CHECK-NEXT:    [[TMP0:%.*]] = tail call i32 @llvm.cttz.i32(i32 [[A]], i1 true)
30; CHECK-NEXT:    [[SPEC_SELECT:%.*]] = select i1 [[TOBOOL]], i32 32, i32 [[TMP0]]
31; CHECK-NEXT:    ret i32 [[SPEC_SELECT]]
32;
33entry:
34  %tobool = icmp eq i32 %A, 0
35  br i1 %tobool, label %cond.end, label %cond.true
36
37cond.true:
38  %0 = tail call i32 @llvm.cttz.i32(i32 %A, i1 true)
39  br label %cond.end
40
41cond.end:
42  %cond = phi i32 [ %0, %cond.true ], [ 32, %entry ]
43  ret i32 %cond
44}
45
46declare i32 @llvm.ctlz.i32(i32, i1)
47declare i32 @llvm.cttz.i32(i32, i1)
48
49