36 lines
1.2 KiB
LLVM
36 lines
1.2 KiB
LLVM
; RUN: opt -passes='print<memoryssa-walker>' -disable-output < %s 2>&1 | FileCheck %s
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; CHECK: define void @test
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; CHECK: 1 = MemoryDef(liveOnEntry)->liveOnEntry - clobbered by liveOnEntry
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; CHECK: store i8 42, i8* %a1
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; CHECK: 2 = MemoryDef(1)->liveOnEntry - clobbered by liveOnEntry
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; CHECK: store i8 42, i8* %a2
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; CHECK: MemoryUse(1) MustAlias - clobbered by 1 = MemoryDef(liveOnEntry)->liveOnEntry
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; CHECK: %l1 = load i8, i8* %a1
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; CHECK: MemoryUse(2) MustAlias - clobbered by 2 = MemoryDef(1)->liveOnEntry
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; CHECK: %l2 = load i8, i8* %a2
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; CHECK: 3 = MemoryDef(2)->liveOnEntry - clobbered by liveOnEntry
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; CHECK: store i8 42, i8* %p
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; CHECK: 4 = MemoryDef(3)->3 MustAlias - clobbered by 3 = MemoryDef(2)->liveOnEntry
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; CHECK: store i8 42, i8* %p
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; CHECK: MemoryUse(4) MustAlias - clobbered by 4 = MemoryDef(3)->3 MustAlias
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; CHECK: %p1 = load i8, i8* %p
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; CHECK: MemoryUse(4) MustAlias - clobbered by 4 = MemoryDef(3)->3 MustAlias
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; CHECK: %p2 = load i8, i8* %p
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define void @test(i8* %p) {
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%a1 = alloca i8
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%a2 = alloca i8
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store i8 42, i8* %a1
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store i8 42, i8* %a2
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%l1 = load i8, i8* %a1
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%l2 = load i8, i8* %a2
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store i8 42, i8* %p
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store i8 42, i8* %p
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%p1 = load i8, i8* %p
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%p2 = load i8, i8* %p
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ret void
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}
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