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; RUN: opt -codegenprepare -mtriple=arm64_32-apple-ios %s -S -o - | FileCheck %s
define void @test_simple_sink(ptr %base, i64 %offset) {
; CHECK-LABEL: @test_simple_sink
; CHECK: next:
; CHECK: [[ADDR8:%.*]] = getelementptr i8, ptr %base, i64 %offset
; CHECK: load volatile i1, ptr [[ADDR8]]
%addr = getelementptr i1, ptr %base, i64 %offset
%tst = load i1, ptr %addr
br i1 %tst, label %next, label %end
next:
load volatile i1, ptr %addr
ret void
end:
ret void
}
define void @test_inbounds_sink(ptr %base, i64 %offset) {
; CHECK-LABEL: @test_inbounds_sink
; CHECK: next:
; CHECK: [[ADDR8:%.*]] = getelementptr inbounds i8, ptr %base, i64 %offset
; CHECK: load volatile i1, ptr [[ADDR8]]
%addr = getelementptr inbounds i1, ptr %base, i64 %offset
%tst = load i1, ptr %addr
br i1 %tst, label %next, label %end
next:
load volatile i1, ptr %addr
ret void
end:
ret void
}
; No address derived via an add can be guaranteed inbounds
define void @test_add_sink(ptr %base, i64 %offset) {
; CHECK-LABEL: @test_add_sink
; CHECK: next:
; CHECK: [[ADDR8:%.*]] = getelementptr i8, ptr %base, i64 %offset
; CHECK: load volatile i1, ptr [[ADDR8]]
%base64 = ptrtoint ptr %base to i64
%addr64 = add nsw nuw i64 %base64, %offset
%addr = inttoptr i64 %addr64 to ptr
%tst = load i1, ptr %addr
br i1 %tst, label %next, label %end
next:
load volatile i1, ptr %addr
ret void
end:
ret void
}
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