xref: /aosp_15_r20/external/llvm/test/Transforms/LICM/assume.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -licm -basicaa < %s -S | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(licm)' < %s -S | FileCheck %s
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workerdefine void @f_0(i1 %p) nounwind ssp {
5*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @f_0(
6*9880d681SAndroid Build Coastguard Workerentry:
7*9880d681SAndroid Build Coastguard Worker  br label %for.body
8*9880d681SAndroid Build Coastguard Worker
9*9880d681SAndroid Build Coastguard Workerfor.body:
10*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %if.then, label %for.cond.backedge
11*9880d681SAndroid Build Coastguard Worker
12*9880d681SAndroid Build Coastguard Workerfor.cond.backedge:
13*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %for.end104, label %for.body
14*9880d681SAndroid Build Coastguard Worker
15*9880d681SAndroid Build Coastguard Workerif.then:
16*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %if.then27, label %if.end.if.end.split_crit_edge.critedge
17*9880d681SAndroid Build Coastguard Worker
18*9880d681SAndroid Build Coastguard Workerif.then27:
19*9880d681SAndroid Build Coastguard Worker; CHECK: tail call void @llvm.assume
20*9880d681SAndroid Build Coastguard Worker  tail call void @llvm.assume(i1 %p)
21*9880d681SAndroid Build Coastguard Worker  br label %for.body61.us
22*9880d681SAndroid Build Coastguard Worker
23*9880d681SAndroid Build Coastguard Workerif.end.if.end.split_crit_edge.critedge:
24*9880d681SAndroid Build Coastguard Worker  br label %for.body61
25*9880d681SAndroid Build Coastguard Worker
26*9880d681SAndroid Build Coastguard Workerfor.body61.us:
27*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %for.cond.backedge, label %for.body61.us
28*9880d681SAndroid Build Coastguard Worker
29*9880d681SAndroid Build Coastguard Workerfor.body61:
30*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %for.cond.backedge, label %for.body61
31*9880d681SAndroid Build Coastguard Worker
32*9880d681SAndroid Build Coastguard Workerfor.end104:
33*9880d681SAndroid Build Coastguard Worker  ret void
34*9880d681SAndroid Build Coastguard Worker}
35*9880d681SAndroid Build Coastguard Worker
36*9880d681SAndroid Build Coastguard Workerdefine void @f_1(i1 %cond, i32* %ptr) {
37*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @f_1(
38*9880d681SAndroid Build Coastguard Worker; CHECK: %val = load i32, i32* %ptr
39*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:  br label %loop
40*9880d681SAndroid Build Coastguard Worker
41*9880d681SAndroid Build Coastguard Workerentry:
42*9880d681SAndroid Build Coastguard Worker  br label %loop
43*9880d681SAndroid Build Coastguard Worker
44*9880d681SAndroid Build Coastguard Workerloop:
45*9880d681SAndroid Build Coastguard Worker  %x = phi i32 [ 0, %entry ], [ %x.inc, %loop ]
46*9880d681SAndroid Build Coastguard Worker  call void @llvm.assume(i1 %cond)
47*9880d681SAndroid Build Coastguard Worker  %val = load i32, i32* %ptr
48*9880d681SAndroid Build Coastguard Worker  %x.inc = add i32 %x, %val
49*9880d681SAndroid Build Coastguard Worker  br label %loop
50*9880d681SAndroid Build Coastguard Worker}
51*9880d681SAndroid Build Coastguard Worker
52*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.assume(i1)
53