forked from OSchip/llvm-project
22 lines
659 B
LLVM
22 lines
659 B
LLVM
; RUN: opt -basicaa -print-memoryssa -verify-memoryssa -analyze < %s 2>&1 | FileCheck %s
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;
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; Ensures that volatile stores/loads count as MemoryDefs
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define i32 @foo() {
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%1 = alloca i32, align 4
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; CHECK: 1 = MemoryDef(liveOnEntry)
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; CHECK-NEXT: store volatile i32 4
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store volatile i32 4, i32* %1, align 4
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; CHECK: 2 = MemoryDef(1)
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; CHECK-NEXT: store volatile i32 8
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store volatile i32 8, i32* %1, align 4
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; CHECK: 3 = MemoryDef(2)
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; CHECK-NEXT: %2 = load volatile i32
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%2 = load volatile i32, i32* %1, align 4
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; CHECK: 4 = MemoryDef(3)
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; CHECK-NEXT: %3 = load volatile i32
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%3 = load volatile i32, i32* %1, align 4
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%4 = add i32 %3, %2
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ret i32 %4
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}
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