| //@ add-core-stubs |
| //@ compile-flags: -Copt-level=0 -Cdebuginfo=0 --target riscv64gc-unknown-linux-gnu |
| //@ needs-llvm-components: riscv |
| |
| #![feature(no_core, lang_items)] |
| #![no_std] |
| #![no_core] |
| #![crate_type = "lib"] |
| |
| extern crate minicore; |
| use minicore::*; |
| |
| #[repr(C, align(64))] |
| struct Aligned(f64); |
| |
| #[repr(C, align(64))] |
| struct AlignedPair(f32, f64); |
| |
| impl Copy for Aligned {} |
| impl Copy for AlignedPair {} |
| |
| // CHECK-LABEL: define double @read_aligned |
| #[unsafe(no_mangle)] |
| pub extern "C" fn read_aligned(x: &Aligned) -> Aligned { |
| // CHECK: %[[TEMP:.*]] = alloca [64 x i8], align 64 |
| // CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 64 %[[TEMP]], ptr align 64 %[[PTR:.*]], i64 64, i1 false) |
| // CHECK-NEXT: %[[RES:.*]] = load double, ptr %[[TEMP]], align 64 |
| // CHECK-NEXT: ret double %[[RES]] |
| *x |
| } |
| |
| // CHECK-LABEL: define { float, double } @read_aligned_pair |
| #[unsafe(no_mangle)] |
| pub extern "C" fn read_aligned_pair(x: &AlignedPair) -> AlignedPair { |
| // CHECK: %[[TEMP:.*]] = alloca [64 x i8], align 64 |
| // CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 64 %[[TEMP]], ptr align 64 %[[PTR:.*]], i64 64, i1 false) |
| // CHECK-NEXT: %[[FIRST:.*]] = load float, ptr %[[TEMP]], align 64 |
| // CHECK-NEXT: %[[SECOND_PTR:.*]] = getelementptr inbounds i8, ptr %[[TEMP]], i64 8 |
| // CHECK-NEXT: %[[SECOND:.*]] = load double, ptr %[[SECOND_PTR]], align 8 |
| // CHECK-NEXT: %[[RES1:.*]] = insertvalue { float, double } poison, float %[[FIRST]], 0 |
| // CHECK-NEXT: %[[RES2:.*]] = insertvalue { float, double } %[[RES1]], double %[[SECOND]], 1 |
| // CHECK-NEXT: ret { float, double } %[[RES2]] |
| *x |
| } |
