derek.holloway
7502bf64a4
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182 lines
9.3 KiB
LLVM
182 lines
9.3 KiB
LLVM
; RUN: opt -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 %s | FileCheck %s
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declare void @escape(ptr)
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declare noalias ptr @malloc(i64)
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; CHECK-LABEL: Function: alloca_no_escape:
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; CHECK: NoModRef: Ptr: i32* %a <-> %1 = atomicrmw add ptr %x, i32 1 monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %1 = atomicrmw add ptr %x, i32 1 monotonic, align 4
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; CHECK: NoModRef: Ptr: i32* %a <-> %2 = cmpxchg ptr %x, i32 0, i32 1 monotonic monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %2 = cmpxchg ptr %x, i32 0, i32 1 monotonic monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %3 = load atomic i32, ptr %x monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %3 = load atomic i32, ptr %x monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> store atomic i32 0, ptr %x monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> store atomic i32 0, ptr %x monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> fence release
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; CHECK: Both ModRef: Ptr: i32* %x <-> fence release
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; CHECK: Both ModRef: Ptr: i32* %a <-> %4 = atomicrmw add ptr %x, i32 1 acq_rel, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %4 = atomicrmw add ptr %x, i32 1 acq_rel, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %5 = cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %5 = cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %6 = load atomic i32, ptr %x acquire, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %6 = load atomic i32, ptr %x acquire, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> store atomic i32 0, ptr %x release, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> store atomic i32 0, ptr %x release, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> fence seq_cst
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; CHECK: Both ModRef: Ptr: i32* %x <-> fence seq_cst
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; CHECK: Both ModRef: Ptr: i32* %a <-> %7 = atomicrmw add ptr %x, i32 1 seq_cst, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %7 = atomicrmw add ptr %x, i32 1 seq_cst, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %8 = cmpxchg ptr %x, i32 0, i32 1 seq_cst seq_cst, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %8 = cmpxchg ptr %x, i32 0, i32 1 seq_cst seq_cst, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %9 = load atomic i32, ptr %x seq_cst, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %9 = load atomic i32, ptr %x seq_cst, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> store atomic i32 0, ptr %x seq_cst, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> store atomic i32 0, ptr %x seq_cst, align 4
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define void @alloca_no_escape(ptr %x) {
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%a = alloca i32
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store i32 0, ptr %a
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atomicrmw add ptr %x, i32 1 monotonic
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cmpxchg ptr %x, i32 0, i32 1 monotonic monotonic
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load atomic i32, ptr %x monotonic, align 4
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store atomic i32 0, ptr %x monotonic, align 4
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fence release
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atomicrmw add ptr %x, i32 1 acq_rel
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cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic
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load atomic i32, ptr %x acquire, align 4
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store atomic i32 0, ptr %x release, align 4
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fence seq_cst
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atomicrmw add ptr %x, i32 1 seq_cst
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cmpxchg ptr %x, i32 0, i32 1 seq_cst seq_cst
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load atomic i32, ptr %x seq_cst, align 4
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store atomic i32 0, ptr %x seq_cst, align 4
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ret void
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}
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; CHECK-LABEL: Function: alloca_escape_after:
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; CHECK: Both ModRef: Ptr: i32* %a <-> fence release
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; CHECK: Both ModRef: Ptr: i32* %x <-> fence release
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; CHECK: Both ModRef: Ptr: i32* %a <-> %1 = atomicrmw add ptr %x, i32 1 acq_rel, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %1 = atomicrmw add ptr %x, i32 1 acq_rel, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %2 = cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %2 = cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %3 = load atomic i32, ptr %x acquire, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %3 = load atomic i32, ptr %x acquire, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> store atomic i32 0, ptr %x release, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> store atomic i32 0, ptr %x release, align 4
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define void @alloca_escape_after(ptr %x) {
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%a = alloca i32
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store i32 0, ptr %a
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fence release
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atomicrmw add ptr %x, i32 1 acq_rel
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cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic
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load atomic i32, ptr %x acquire, align 4
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store atomic i32 0, ptr %x release, align 4
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call void @escape(ptr %a)
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ret void
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}
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; CHECK-LABEL: Function: noalias_no_escape:
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; CHECK: Both ModRef: Ptr: i32* %a <-> fence release
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; CHECK: Both ModRef: Ptr: i32* %x <-> fence release
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; CHECK: Both ModRef: Ptr: i32* %a <-> %1 = atomicrmw add ptr %x, i32 1 acq_rel, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %1 = atomicrmw add ptr %x, i32 1 acq_rel, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %2 = cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %2 = cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %3 = load atomic i32, ptr %x acquire, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %3 = load atomic i32, ptr %x acquire, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> store atomic i32 0, ptr %x release, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> store atomic i32 0, ptr %x release, align 4
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define void @noalias_no_escape(ptr noalias %a, ptr %x) {
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store i32 0, ptr %a
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fence release
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atomicrmw add ptr %x, i32 1 acq_rel
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cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic
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load atomic i32, ptr %x acquire, align 4
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store atomic i32 0, ptr %x release, align 4
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ret void
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}
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; CHECK-LABEL: Function: noalias_escape_after:
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; CHECK: Both ModRef: Ptr: i32* %a <-> fence release
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; CHECK: Both ModRef: Ptr: i32* %x <-> fence release
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; CHECK: Both ModRef: Ptr: i32* %a <-> %1 = atomicrmw add ptr %x, i32 1 acq_rel, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %1 = atomicrmw add ptr %x, i32 1 acq_rel, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %2 = cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %2 = cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %3 = load atomic i32, ptr %x acquire, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %3 = load atomic i32, ptr %x acquire, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> store atomic i32 0, ptr %x release, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> store atomic i32 0, ptr %x release, align 4
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define void @noalias_escape_after(ptr noalias %a, ptr %x) {
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store i32 0, ptr %a
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fence release
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atomicrmw add ptr %x, i32 1 acq_rel
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cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic
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load atomic i32, ptr %x acquire, align 4
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store atomic i32 0, ptr %x release, align 4
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ret void
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}
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; CHECK-LABEL: Function: malloc_no_escape:
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; CHECK: Both ModRef: Ptr: i32* %a <-> %a = call ptr @malloc(i64 4)
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; CHECK: Both ModRef: Ptr: i32* %x <-> %a = call ptr @malloc(i64 4)
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; CHECK: Both ModRef: Ptr: i32* %a <-> fence release
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; CHECK: Both ModRef: Ptr: i32* %x <-> fence release
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; CHECK: Both ModRef: Ptr: i32* %a <-> %1 = atomicrmw add ptr %x, i32 1 acq_rel, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %1 = atomicrmw add ptr %x, i32 1 acq_rel, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %2 = cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %2 = cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %3 = load atomic i32, ptr %x acquire, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %3 = load atomic i32, ptr %x acquire, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> store atomic i32 0, ptr %x release, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> store atomic i32 0, ptr %x release, align 4
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define void @malloc_no_escape(ptr %x) {
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%a = call ptr @malloc(i64 4)
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store i32 0, ptr %a
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fence release
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atomicrmw add ptr %x, i32 1 acq_rel
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cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic
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load atomic i32, ptr %x acquire, align 4
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store atomic i32 0, ptr %x release, align 4
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ret void
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}
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; CHECK-LABEL: Function: malloc_escape_after:
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; CHECK: Both ModRef: Ptr: i32* %a <-> %a = call ptr @malloc(i64 4)
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; CHECK: Both ModRef: Ptr: i32* %x <-> %a = call ptr @malloc(i64 4)
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; CHECK: Both ModRef: Ptr: i32* %a <-> fence release
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; CHECK: Both ModRef: Ptr: i32* %x <-> fence release
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; CHECK: Both ModRef: Ptr: i32* %a <-> %1 = atomicrmw add ptr %x, i32 1 acq_rel, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %1 = atomicrmw add ptr %x, i32 1 acq_rel, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %2 = cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %2 = cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> %3 = load atomic i32, ptr %x acquire, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> %3 = load atomic i32, ptr %x acquire, align 4
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; CHECK: Both ModRef: Ptr: i32* %a <-> store atomic i32 0, ptr %x release, align 4
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; CHECK: Both ModRef: Ptr: i32* %x <-> store atomic i32 0, ptr %x release, align 4
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define ptr @malloc_escape_after(ptr %x) {
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%a = call ptr @malloc(i64 4)
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store i32 0, ptr %a
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fence release
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atomicrmw add ptr %x, i32 1 acq_rel
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cmpxchg ptr %x, i32 0, i32 1 acq_rel monotonic
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load atomic i32, ptr %x acquire, align 4
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store atomic i32 0, ptr %x release, align 4
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ret ptr %a
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}
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