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; RUN: opt -S -instsimplify -instcombine < %s | FileCheck %s
; CHECK-LABEL: define void @checkNonnullLaunder()
define void @checkNonnullLaunder() {
; CHECK: %[[p:.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* nonnull %0)
; CHECK: call void @use(i8* nonnull %[[p]])
entry:
%0 = alloca i8, align 8
%p = call i8* @llvm.launder.invariant.group.p0i8(i8* %0)
%p2 = call i8* @llvm.launder.invariant.group.p0i8(i8* %p)
call void @use(i8* %p2)
ret void
}
; CHECK-LABEL: define void @checkNonnullStrip()
define void @checkNonnullStrip() {
; CHECK: %[[p:.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* nonnull %0)
; CHECK: call void @use(i8* nonnull %[[p]])
entry:
%0 = alloca i8, align 8
%p = call i8* @llvm.strip.invariant.group.p0i8(i8* %0)
%p2 = call i8* @llvm.strip.invariant.group.p0i8(i8* %p)
call void @use(i8* %p2)
ret void
}
declare i8* @llvm.launder.invariant.group.p0i8(i8*)
declare i8* @llvm.strip.invariant.group.p0i8(i8*)
declare void @use(i8*)
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