1 ; RUN: opt -debug-pass=Executions -phi-values -memcpyopt -instcombine -disable-output < %s 2>&1 | FileCheck %s
3 ; Check that phi values is not run when it's not already available, and that
4 ; basicaa is freed after a pass that preserves CFG.
6 ; CHECK: Executing Pass 'Phi Values Analysis'
7 ; CHECK: Executing Pass 'Basic Alias Analysis (stateless AA impl)'
8 ; CHECK: Executing Pass 'Memory Dependence Analysis'
9 ; CHECK: Executing Pass 'MemCpy Optimization'
10 ; CHECK-DAG: Freeing Pass 'MemCpy Optimization'
11 ; CHECK-DAG: Freeing Pass 'Phi Values Analysis'
12 ; CHECK-DAG: Freeing Pass 'Memory Dependence Analysis'
13 ; CHECK-DAG: Freeing Pass 'Basic Alias Analysis (stateless AA impl)'
14 ; CHECK-NOT: Executing Pass 'Phi Values Analysis'
15 ; CHECK: Executing Pass 'Basic Alias Analysis (stateless AA impl)'
16 ; CHECK: Executing Pass 'Combine redundant instructions'
18 declare void @otherfn([4 x i8]*)
19 declare i32 @__gxx_personality_v0(...)
21 ; This function is one where if we didn't free basicaa after memcpyopt then the
22 ; usage of basicaa in instcombine would cause a segfault due to stale phi-values
24 define void @fn(i8* %this, i64* %ptr) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
26 %arr = alloca [4 x i8], align 8
27 %gep1 = getelementptr inbounds [4 x i8], [4 x i8]* %arr, i64 0, i32 0
28 br i1 undef, label %then, label %if
34 %phi = phi i64* [ %ptr, %if ], [ null, %entry ]
35 store i8 1, i8* %gep1, align 8
36 %load = load i64, i64* %phi, align 8
37 %gep2 = getelementptr inbounds i8, i8* undef, i64 %load
38 %gep3 = getelementptr inbounds i8, i8* %gep2, i64 40
39 invoke i32 undef(i8* undef)
40 to label %invoke unwind label %lpad
46 landingpad { i8*, i32 }
48 call void @otherfn([4 x i8]* nonnull %arr)