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38 lines
1.0 KiB
Rust
38 lines
1.0 KiB
Rust
//! Check that index and offset use the same getelementptr format.
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//@ revisions: NO-OPT OPT
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//@[NO-OPT] compile-flags: -Copt-level=0
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//@[OPT] compile-flags: -Copt-level=1
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#![crate_type = "lib"]
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struct Foo(i32, i32);
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// CHECK-LABEL: @index_on_struct(
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#[no_mangle]
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fn index_on_struct(a: &[Foo], index: usize) -> &Foo {
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// CHECK: getelementptr inbounds{{( nuw)?}} %Foo, ptr %a.0, {{i64|i32}} %index
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&a[index]
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}
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// CHECK-LABEL: @offset_on_struct(
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#[no_mangle]
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fn offset_on_struct(a: *const Foo, index: usize) -> *const Foo {
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// CHECK: getelementptr inbounds{{( nuw)?}} %Foo, ptr %a, {{i64|i32}} %index
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unsafe { a.add(index) }
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}
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// CHECK-LABEL: @index_on_i32(
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#[no_mangle]
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fn index_on_i32(a: &[i32], index: usize) -> &i32 {
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// CHECK: getelementptr inbounds{{( nuw)?}} i32, ptr %a.0, {{i64|i32}} %index
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&a[index]
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}
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// CHECK-LABEL: @offset_on_i32(
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#[no_mangle]
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fn offset_on_i32(a: *const i32, index: usize) -> *const i32 {
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// CHECK: getelementptr inbounds{{( nuw)?}} i32, ptr %a, {{i64|i32}} %index
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unsafe { a.add(index) }
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}
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