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; RUN: opt -S -passes=instsimplify,instcombine < %s | FileCheck %s
; CHECK-LABEL: define void @checkNonnullLaunder()
define void @checkNonnullLaunder() {
; CHECK: %[[p:.*]] = call ptr @llvm.launder.invariant.group.p0(ptr nonnull %0)
; CHECK: call void @use(ptr nonnull %[[p]])
entry:
%0 = alloca i8, align 8
%p = call ptr @llvm.launder.invariant.group.p0(ptr %0)
%p2 = call ptr @llvm.launder.invariant.group.p0(ptr %p)
call void @use(ptr %p2)
ret void
}
; CHECK-LABEL: define void @checkNonnullStrip()
define void @checkNonnullStrip() {
; CHECK: %[[p:.*]] = call ptr @llvm.strip.invariant.group.p0(ptr nonnull %0)
; CHECK: call void @use(ptr nonnull %[[p]])
entry:
%0 = alloca i8, align 8
%p = call ptr @llvm.strip.invariant.group.p0(ptr %0)
%p2 = call ptr @llvm.strip.invariant.group.p0(ptr %p)
call void @use(ptr %p2)
ret void
}
declare ptr @llvm.launder.invariant.group.p0(ptr)
declare ptr @llvm.strip.invariant.group.p0(ptr)
declare void @use(ptr)
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