37 lines
680 B
Rust
37 lines
680 B
Rust
// compile-flags: -O -C debuginfo=0 -Zmir-opt-level=2
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// only-64bit
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// ignore-debug
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// Checks that we do not have any branches in the MIR for the two tested functions.
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// compile-flags: -Cpanic=abort
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#![feature(core_intrinsics)]
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#![crate_type = "lib"]
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// EMIT_MIR intrinsics.f_unit.PreCodegen.after.mir
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pub fn f_unit() {
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f_dispatch(());
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}
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// EMIT_MIR intrinsics.f_u64.PreCodegen.after.mir
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pub fn f_u64() {
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f_dispatch(0u64);
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}
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#[inline(always)]
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pub fn f_dispatch<T>(t: T) {
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if std::mem::size_of::<T>() == 0 {
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f_zst(t);
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} else {
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f_non_zst(t);
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}
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}
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#[inline(never)]
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pub fn f_zst<T>(_t: T) {
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}
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#[inline(never)]
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pub fn f_non_zst<T>(_t: T) {}
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