forked from OSchip/llvm-project
37 lines
1.2 KiB
Plaintext
37 lines
1.2 KiB
Plaintext
// RUN: %clang_cc1 --std=c++11 -triple x86_64-unknown-linux-gnu -emit-llvm -o - %s | \
|
|
// RUN: FileCheck -check-prefix HOST -check-prefix CHECK %s
|
|
|
|
// RUN: %clang_cc1 --std=c++11 -fcuda-is-device -triple nvptx64-nvidia-cuda \
|
|
// RUN: -emit-llvm -o - %s | FileCheck -check-prefix DEVICE -check-prefix CHECK %s
|
|
|
|
#include "Inputs/cuda.h"
|
|
|
|
struct U {
|
|
short x;
|
|
} __attribute__((packed));
|
|
|
|
struct S {
|
|
int *ptr;
|
|
char a;
|
|
U u;
|
|
};
|
|
|
|
// Clang should generate a packed LLVM struct for S (denoted by the <>s),
|
|
// otherwise this test isn't interesting.
|
|
// CHECK: %struct.S = type <{ i32*, i8, %struct.U, [5 x i8] }>
|
|
|
|
static_assert(alignof(S) == 8, "Unexpected alignment.");
|
|
|
|
// HOST-LABEL: @_Z6kernelc1SPi
|
|
// Marshalled kernel args should be:
|
|
// 1. offset 0, width 1
|
|
// 2. offset 8 (because alignof(S) == 8), width 16
|
|
// 3. offset 24, width 8
|
|
// HOST: call i32 @cudaSetupArgument({{[^,]*}}, i64 1, i64 0)
|
|
// HOST: call i32 @cudaSetupArgument({{[^,]*}}, i64 16, i64 8)
|
|
// HOST: call i32 @cudaSetupArgument({{[^,]*}}, i64 8, i64 24)
|
|
|
|
// DEVICE-LABEL: @_Z6kernelc1SPi
|
|
// DEVICE-SAME: i8{{[^,]*}}, %struct.S* byval align 8{{[^,]*}}, i32*
|
|
__global__ void kernel(char a, S s, int *b) {}
|