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1; RUN: opt < %s -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s2target 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 4declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) #05declare void @llvm.assume(i1) #06 7define void @test1(ptr %P, ptr %Q) nounwind ssp {8 tail call void @llvm.assume(i1 true)9 tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)10 load i8, ptr %P11 load i8, ptr %Q12 ret void13 14; CHECK-LABEL: Function: test1:15 16; CHECK: MayAlias: i8* %P, i8* %Q17; CHECK: NoModRef: Ptr: i8* %P <-> tail call void @llvm.assume(i1 true)18; CHECK: NoModRef: Ptr: i8* %Q <-> tail call void @llvm.assume(i1 true)19; CHECK: Both ModRef: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)20; CHECK: Both ModRef: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)21; CHECK: NoModRef: tail call void @llvm.assume(i1 true) <-> tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)22; CHECK: NoModRef: tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false) <-> tail call void @llvm.assume(i1 true)23}24 25; Same but with operand bundles26define void @test2(ptr %P, ptr %Q) nounwind ssp {27 tail call void @llvm.assume(i1 true) [ "nonnull"(ptr %P) ]28 tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)29 load i8, ptr %P30 load i8, ptr %Q31 ret void32 33; CHECK-LABEL: Function: test2:34 35; CHECK: MayAlias: i8* %P, i8* %Q36; CHECK: NoModRef: Ptr: i8* %P <-> tail call void @llvm.assume(i1 true) [ "nonnull"(ptr %P) ]37; CHECK: NoModRef: Ptr: i8* %Q <-> tail call void @llvm.assume(i1 true) [ "nonnull"(ptr %P) ]38; CHECK: Both ModRef: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)39; CHECK: Both ModRef: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)40; CHECK: NoModRef: tail call void @llvm.assume(i1 true) [ "nonnull"(ptr %P) ] <-> tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)41; CHECK: NoModRef: tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false) <-> tail call void @llvm.assume(i1 true) [ "nonnull"(ptr %P) ]42}43 44attributes #0 = { nounwind }45