forked from OSchip/llvm-project
44 lines
1.7 KiB
Plaintext
44 lines
1.7 KiB
Plaintext
// REQUIRES: x86-registered-target
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// REQUIRES: nvptx-registered-target
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// RUN: %clang_cc1 -triple nvptx64-nvidia-cuda -fcuda-is-device -emit-llvm \
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// RUN: -o - %s | FileCheck %s
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#include "Inputs/cuda.h"
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extern "C" __device__ int vprintf(const char*, const char*);
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// Check a simple call to printf end-to-end.
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// CHECK: [[SIMPLE_PRINTF_TY:%[a-zA-Z0-9_]+]] = type { i32, i64, double }
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__device__ int CheckSimple() {
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// CHECK: [[BUF:%[a-zA-Z0-9_]+]] = alloca [[SIMPLE_PRINTF_TY]]
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// CHECK: [[FMT:%[0-9]+]] = load{{.*}}%fmt
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const char* fmt = "%d %lld %f";
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// CHECK: [[PTR0:%[0-9]+]] = getelementptr inbounds [[SIMPLE_PRINTF_TY]], [[SIMPLE_PRINTF_TY]]* [[BUF]], i32 0, i32 0
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// CHECK: store i32 1, i32* [[PTR0]], align 4
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// CHECK: [[PTR1:%[0-9]+]] = getelementptr inbounds [[SIMPLE_PRINTF_TY]], [[SIMPLE_PRINTF_TY]]* [[BUF]], i32 0, i32 1
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// CHECK: store i64 2, i64* [[PTR1]], align 8
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// CHECK: [[PTR2:%[0-9]+]] = getelementptr inbounds [[SIMPLE_PRINTF_TY]], [[SIMPLE_PRINTF_TY]]* [[BUF]], i32 0, i32 2
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// CHECK: store double 3.0{{[^,]*}}, double* [[PTR2]], align 8
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// CHECK: [[BUF_CAST:%[0-9]+]] = bitcast [[SIMPLE_PRINTF_TY]]* [[BUF]] to i8*
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// CHECK: [[RET:%[0-9]+]] = call i32 @vprintf(i8* [[FMT]], i8* [[BUF_CAST]])
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// CHECK: ret i32 [[RET]]
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return printf(fmt, 1, 2ll, 3.0);
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}
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__device__ void CheckNoArgs() {
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// CHECK: call i32 @vprintf({{.*}}, i8* null){{$}}
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printf("hello, world!");
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}
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// Check that printf's alloca happens in the entry block, not inside the if
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// statement.
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__device__ bool foo();
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__device__ void CheckAllocaIsInEntryBlock() {
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// CHECK: alloca %printf_args
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// CHECK: call {{.*}} @_Z3foov()
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if (foo()) {
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printf("%d", 42);
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}
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}
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