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28 lines
1.1 KiB
Rust
28 lines
1.1 KiB
Rust
// This test checks that global variables respect the target minimum alignment.
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// The three bools `STATIC_BOOL`, `STATIC_MUT_BOOL`, and `CONST_BOOL` all have
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// type-alignment of 1, but some targets require greater global alignment.
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// See https://github.com/rust-lang/rust/pull/44440
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//@ only-linux
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// Reason: this test is specific to linux, considering compilation is targeted
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// towards linux architectures only.
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use run_make_support::{assert_count_is, llvm_components_contain, rfs, rustc};
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fn main() {
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// Most targets are happy with default alignment -- take i686 for example.
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if llvm_components_contain("x86") {
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rustc().target("i686-unknown-linux-gnu").emit("llvm-ir").input("min_global_align.rs").run();
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assert_count_is(3, rfs::read_to_string("min_global_align.ll"), "align 1");
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}
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// SystemZ requires even alignment for PC-relative addressing.
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if llvm_components_contain("systemz") {
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rustc()
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.target("s390x-unknown-linux-gnu")
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.emit("llvm-ir")
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.input("min_global_align.rs")
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.run();
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assert_count_is(3, rfs::read_to_string("min_global_align.ll"), "align 2");
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}
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}
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