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+// only-x86_64 |
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+// compile-flags: -Copt-level=3 |
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+ |
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+#![crate_type = "lib"] |
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+#![feature(target_feature_11)] |
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+ |
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+#[cfg(target_arch = "x86_64")] |
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+use std::arch::x86_64::*; |
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+ |
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+// CHECK-LABEL: @with_avx |
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+#[no_mangle] |
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+#[cfg(target_arch = "x86_64")] |
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+#[target_feature(enable = "avx")] |
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+fn with_avx(x: __m256) -> __m256 { |
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+// CHECK: fadd |
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+let add = { |
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+#[inline(always)] |
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+ |x, y |
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+}; |
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+add(x, x) |
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+} |
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+ |
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+// CHECK-LABEL: @without_avx |
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+#[no_mangle] |
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+#[cfg(target_arch = "x86_64")] |
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+unsafe fn without_avx(x: __m256) -> __m256 { |
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+// CHECK-NOT: fadd |
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+let add = { |
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+#[inline(always)] |
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+ |x, y |
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+}; |
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+add(x, x) |
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+} |