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afc9d674fe
CUDA/HIP programs use __noinline__ like a keyword e.g.
__noinline__ void foo() {} since __noinline__ is defined
as a macro __attribute__((noinline)) in CUDA/HIP runtime
header files.
However, gcc and clang supports __attribute__((__noinline__))
the same as __attribute__((noinline)). Some C++ libraries
use __attribute__((__noinline__)) in their header files.
When CUDA/HIP programs include such header files,
clang will emit error about invalid attributes.
This patch fixes this issue by supporting __noinline__ as
a keyword, so that CUDA/HIP runtime could remove
the macro definition.
Reviewed by: Aaron Ballman, Artem Belevich
Differential Revision: https://reviews.llvm.org/D124866
35 lines
1.3 KiB
Plaintext
35 lines
1.3 KiB
Plaintext
// Uses -O2 since the defalt -O0 option adds noinline to all functions.
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// RUN: %clang_cc1 -triple nvptx-nvidia-cuda -fcuda-is-device \
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// RUN: -O2 -disable-llvm-passes -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -fcuda-is-device \
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// RUN: -O2 -disable-llvm-passes -emit-llvm -o - -x hip %s | FileCheck %s
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// RUN: %clang_cc1 -triple x86_64-unknown-gnu-linux \
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// RUN: -O2 -disable-llvm-passes -emit-llvm -o - %s | FileCheck %s
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#include "Inputs/cuda.h"
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__noinline__ __device__ __host__ void fun1() {}
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__attribute__((noinline)) __device__ __host__ void fun2() {}
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__attribute__((__noinline__)) __device__ __host__ void fun3() {}
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[[gnu::__noinline__]] __device__ __host__ void fun4() {}
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#define __noinline__ __attribute__((__noinline__))
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__noinline__ __device__ __host__ void fun5() {}
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__device__ __host__ void fun6() {}
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// CHECK: define{{.*}}@_Z4fun1v{{.*}}#[[ATTR1:[0-9]*]]
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// CHECK: define{{.*}}@_Z4fun2v{{.*}}#[[ATTR1:[0-9]*]]
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// CHECK: define{{.*}}@_Z4fun3v{{.*}}#[[ATTR1:[0-9]*]]
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// CHECK: define{{.*}}@_Z4fun4v{{.*}}#[[ATTR1:[0-9]*]]
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// CHECK: define{{.*}}@_Z4fun5v{{.*}}#[[ATTR1:[0-9]*]]
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// CHECK: define{{.*}}@_Z4fun6v{{.*}}#[[ATTR2:[0-9]*]]
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// CHECK: attributes #[[ATTR1]] = {{.*}}noinline
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// CHECK-NOT: attributes #[[ATTR2]] = {{.*}}noinline
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