xref: /aosp_15_r20/external/llvm/test/Analysis/BasicAA/assume.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
2*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32"
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) #0
5*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.assume(i1) #0
6*9880d681SAndroid Build Coastguard Worker
7*9880d681SAndroid Build Coastguard Workerdefine void @test1(i8* %P, i8* %Q) nounwind ssp {
8*9880d681SAndroid Build Coastguard Worker  tail call void @llvm.assume(i1 true)
9*9880d681SAndroid Build Coastguard Worker  tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i32 1, i1 false)
10*9880d681SAndroid Build Coastguard Worker  ret void
11*9880d681SAndroid Build Coastguard Worker
12*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: Function: test1:
13*9880d681SAndroid Build Coastguard Worker
14*9880d681SAndroid Build Coastguard Worker; CHECK: MayAlias:	i8* %P, i8* %Q
15*9880d681SAndroid Build Coastguard Worker; CHECK: NoModRef:  Ptr: i8* %P	<->  tail call void @llvm.assume(i1 true)
16*9880d681SAndroid Build Coastguard Worker; CHECK: NoModRef:  Ptr: i8* %Q	<->  tail call void @llvm.assume(i1 true)
17*9880d681SAndroid Build Coastguard Worker; CHECK: Both ModRef:  Ptr: i8* %P	<->  tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i32 1, i1 false)
18*9880d681SAndroid Build Coastguard Worker; CHECK: Both ModRef:  Ptr: i8* %Q	<->  tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i32 1, i1 false)
19*9880d681SAndroid Build Coastguard Worker; CHECK: NoModRef:   tail call void @llvm.assume(i1 true) <->   tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i32 1, i1 false)
20*9880d681SAndroid Build Coastguard Worker; CHECK: NoModRef:   tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i32 1, i1 false) <->   tail call void @llvm.assume(i1 true)
21*9880d681SAndroid Build Coastguard Worker}
22*9880d681SAndroid Build Coastguard Worker
23*9880d681SAndroid Build Coastguard Workerattributes #0 = { nounwind }
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