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29 lines
886 B
Rust
29 lines
886 B
Rust
//@ compile-flags: -Copt-level=3 -C no-prepopulate-passes
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//@ only-x86_64 (it's using arch-specific types)
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#![crate_type = "lib"]
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use std::arch::x86_64::{__m128, __m128i, __m256i};
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use std::mem::transmute;
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// CHECK-LABEL: @check_sse_pair_to_avx(
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#[no_mangle]
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pub unsafe fn check_sse_pair_to_avx(x: (__m128i, __m128i)) -> __m256i {
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// CHECK: start:
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// CHECK-NOT: alloca
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// CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 32 %_0, ptr align 16 %x, i64 32, i1 false)
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// CHECK-NEXT: ret void
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transmute(x)
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}
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// CHECK-LABEL: @check_sse_pair_from_avx(
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#[no_mangle]
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pub unsafe fn check_sse_pair_from_avx(x: __m256i) -> (__m128i, __m128i) {
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// CHECK: start:
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// CHECK-NOT: alloca
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// CHECK-NEXT: %[[TEMP:.+]] = load <4 x i64>, ptr %x, align 32
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// CHECK-NEXT: store <4 x i64> %[[TEMP]], ptr %_0, align 16
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// CHECK-NEXT: ret void
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transmute(x)
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}
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