xref: /llvm-project/llvm/test/Transforms/SCCP/struct-arg-resolve-undefs.ll (revision 16bb8c16aab32e2ee623a2b64d976548be247180)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
2; RUN: opt -passes=ipsccp -S %s | FileCheck %s
3
4%struct.S = type { i32 }
5
6
7define void @main() {
8; CHECK-LABEL: define void @main() {
9; CHECK-NEXT:    [[R:%.*]] = call i32 @f([[STRUCT_S:%.*]] { i32 100 })
10; CHECK-NEXT:    call void @do_report(i32 123)
11; CHECK-NEXT:    ret void
12;
13  %r = call i32 @f(%struct.S { i32 100 })
14  call void @do_report(i32 %r)
15  ret void
16}
17
18declare void @do_report(i32)
19
20define internal i32 @f(%struct.S %s.coerce) {
21; CHECK-LABEL: define internal i32 @f(
22; CHECK-SAME: [[STRUCT_S:%.*]] [[S_COERCE:%.*]]) {
23; CHECK-NEXT:  [[ENTRY:.*]]:
24; CHECK-NEXT:    [[CALL:%.*]] = call i8 @lsh(i8 1, i32 100)
25; CHECK-NEXT:    br label %[[FOR_COND:.*]]
26; CHECK:       [[FOR_COND]]:
27; CHECK-NEXT:    [[I_0:%.*]] = phi i32 [ 0, %[[ENTRY]] ], [ [[INC:%.*]], %[[FOR_COND]] ]
28; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 [[I_0]], 1
29; CHECK-NEXT:    [[INC]] = add nsw i32 [[I_0]], 1
30; CHECK-NEXT:    br i1 [[CMP]], label %[[FOR_COND]], label %[[IF_END:.*]]
31; CHECK:       [[IF_END]]:
32; CHECK-NEXT:    ret i32 poison
33;
34entry:
35  %ev = extractvalue %struct.S %s.coerce, 0
36  %call = call i8 @lsh(i8 1, i32 %ev)
37  %tobool = icmp ne i8 %call, 0
38  br i1 %tobool, label %for.cond, label %if.end
39
40for.cond:                                         ; preds = %for.cond, %if.then
41  %i.0 = phi i32 [ 0, %entry], [ %inc, %for.cond ]
42  %cmp = icmp slt i32 %i.0, 1
43  %inc = add nsw i32 %i.0, 1
44  br i1 %cmp, label %for.cond, label %if.end
45
46if.end:                                           ; preds = %for.cond, %entry
47  ret i32 123
48}
49
50define internal i8 @lsh(i8 %l, i32 %r) {
51; CHECK-LABEL: define internal i8 @lsh(
52; CHECK-SAME: i8 [[L:%.*]], i32 [[R:%.*]]) {
53; CHECK-NEXT:  [[ENTRY:.*:]]
54; CHECK-NEXT:    ret i8 poison
55;
56entry:
57  %conv = sext i8 %l to i32
58  %cmp = icmp slt i32 %conv, 0
59  %shr = ashr i32 127, %r
60  %cmp4 = icmp sgt i32 %conv, %shr
61  %or.cond13 = or i1 %cmp, %cmp4
62  %cond = select i1 %or.cond13, i32 %conv, i32 0
63  %conv7 = trunc i32 %cond to i8
64  ret i8 %conv7
65}
66