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|
// REQUIRES: nvptx-registered-target
// RUN: %clang_cc1 -triple nvptx-unknown-unknown -fcuda-is-device -S -emit-llvm -o - -x cuda %s | \
// RUN: FileCheck -check-prefix=CHECK -check-prefix=LP32 %s
// RUN: %clang_cc1 -triple nvptx64-unknown-unknown -fcuda-is-device -S -emit-llvm -o - -x cuda %s | \
// RUN: FileCheck -check-prefix=CHECK -check-prefix=LP64 %s
#define __device__ __attribute__((device))
#define __global__ __attribute__((global))
#define __shared__ __attribute__((shared))
#define __constant__ __attribute__((constant))
__device__ int read_tid() {
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.tid.x()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.tid.y()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.tid.z()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.tid.w()
int x = __nvvm_read_ptx_sreg_tid_x();
int y = __nvvm_read_ptx_sreg_tid_y();
int z = __nvvm_read_ptx_sreg_tid_z();
int w = __nvvm_read_ptx_sreg_tid_w();
return x + y + z + w;
}
__device__ int read_ntid() {
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.ntid.x()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.ntid.y()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.ntid.z()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.ntid.w()
int x = __nvvm_read_ptx_sreg_ntid_x();
int y = __nvvm_read_ptx_sreg_ntid_y();
int z = __nvvm_read_ptx_sreg_ntid_z();
int w = __nvvm_read_ptx_sreg_ntid_w();
return x + y + z + w;
}
__device__ int read_ctaid() {
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.ctaid.x()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.ctaid.y()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.ctaid.z()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.ctaid.w()
int x = __nvvm_read_ptx_sreg_ctaid_x();
int y = __nvvm_read_ptx_sreg_ctaid_y();
int z = __nvvm_read_ptx_sreg_ctaid_z();
int w = __nvvm_read_ptx_sreg_ctaid_w();
return x + y + z + w;
}
__device__ int read_nctaid() {
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.nctaid.x()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.nctaid.y()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.nctaid.z()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.nctaid.w()
int x = __nvvm_read_ptx_sreg_nctaid_x();
int y = __nvvm_read_ptx_sreg_nctaid_y();
int z = __nvvm_read_ptx_sreg_nctaid_z();
int w = __nvvm_read_ptx_sreg_nctaid_w();
return x + y + z + w;
}
__device__ int read_ids() {
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.laneid()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.warpid()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.nwarpid()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.smid()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.nsmid()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.gridid()
int a = __nvvm_read_ptx_sreg_laneid();
int b = __nvvm_read_ptx_sreg_warpid();
int c = __nvvm_read_ptx_sreg_nwarpid();
int d = __nvvm_read_ptx_sreg_smid();
int e = __nvvm_read_ptx_sreg_nsmid();
int f = __nvvm_read_ptx_sreg_gridid();
return a + b + c + d + e + f;
}
__device__ int read_lanemasks() {
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.lanemask.eq()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.lanemask.le()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.lanemask.lt()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.lanemask.ge()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.lanemask.gt()
int a = __nvvm_read_ptx_sreg_lanemask_eq();
int b = __nvvm_read_ptx_sreg_lanemask_le();
int c = __nvvm_read_ptx_sreg_lanemask_lt();
int d = __nvvm_read_ptx_sreg_lanemask_ge();
int e = __nvvm_read_ptx_sreg_lanemask_gt();
return a + b + c + d + e;
}
__device__ long long read_clocks() {
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.clock()
// CHECK: call i64 @llvm.nvvm.read.ptx.sreg.clock64()
int a = __nvvm_read_ptx_sreg_clock();
long long b = __nvvm_read_ptx_sreg_clock64();
return a + b;
}
__device__ int read_pms() {
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.pm0()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.pm1()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.pm2()
// CHECK: call i32 @llvm.nvvm.read.ptx.sreg.pm3()
int a = __nvvm_read_ptx_sreg_pm0();
int b = __nvvm_read_ptx_sreg_pm1();
int c = __nvvm_read_ptx_sreg_pm2();
int d = __nvvm_read_ptx_sreg_pm3();
return a + b + c + d;
}
__device__ void sync() {
// CHECK: call void @llvm.nvvm.bar.sync(i32 0)
__nvvm_bar_sync(0);
}
// NVVM intrinsics
// The idea is not to test all intrinsics, just that Clang is recognizing the
// builtins defined in BuiltinsNVPTX.def
__device__ void nvvm_math(float f1, float f2, double d1, double d2) {
// CHECK: call float @llvm.nvvm.fmax.f
float t1 = __nvvm_fmax_f(f1, f2);
// CHECK: call float @llvm.nvvm.fmin.f
float t2 = __nvvm_fmin_f(f1, f2);
// CHECK: call float @llvm.nvvm.sqrt.rn.f
float t3 = __nvvm_sqrt_rn_f(f1);
// CHECK: call float @llvm.nvvm.rcp.rn.f
float t4 = __nvvm_rcp_rn_f(f2);
// CHECK: call float @llvm.nvvm.add.rn.f
float t5 = __nvvm_add_rn_f(f1, f2);
// CHECK: call double @llvm.nvvm.fmax.d
double td1 = __nvvm_fmax_d(d1, d2);
// CHECK: call double @llvm.nvvm.fmin.d
double td2 = __nvvm_fmin_d(d1, d2);
// CHECK: call double @llvm.nvvm.sqrt.rn.d
double td3 = __nvvm_sqrt_rn_d(d1);
// CHECK: call double @llvm.nvvm.rcp.rn.d
double td4 = __nvvm_rcp_rn_d(d2);
// CHECK: call void @llvm.nvvm.membar.cta()
__nvvm_membar_cta();
// CHECK: call void @llvm.nvvm.membar.gl()
__nvvm_membar_gl();
// CHECK: call void @llvm.nvvm.membar.sys()
__nvvm_membar_sys();
// CHECK: call void @llvm.nvvm.barrier0()
__nvvm_bar0();
}
__device__ int di;
__shared__ int si;
__device__ long dl;
__shared__ long sl;
__device__ long long dll;
__shared__ long long sll;
// Check for atomic intrinsics
// CHECK-LABEL: nvvm_atom
__device__ void nvvm_atom(float *fp, float f, int *ip, int i, unsigned int *uip, unsigned ui, long *lp, long l,
long long *llp, long long ll) {
// CHECK: atomicrmw add
__nvvm_atom_add_gen_i(ip, i);
// CHECK: atomicrmw add
__nvvm_atom_add_gen_l(&dl, l);
// CHECK: atomicrmw add
__nvvm_atom_add_gen_ll(&sll, ll);
// CHECK: atomicrmw sub
__nvvm_atom_sub_gen_i(ip, i);
// CHECK: atomicrmw sub
__nvvm_atom_sub_gen_l(&dl, l);
// CHECK: atomicrmw sub
__nvvm_atom_sub_gen_ll(&sll, ll);
// CHECK: atomicrmw and
__nvvm_atom_and_gen_i(ip, i);
// CHECK: atomicrmw and
__nvvm_atom_and_gen_l(&dl, l);
// CHECK: atomicrmw and
__nvvm_atom_and_gen_ll(&sll, ll);
// CHECK: atomicrmw or
__nvvm_atom_or_gen_i(ip, i);
// CHECK: atomicrmw or
__nvvm_atom_or_gen_l(&dl, l);
// CHECK: atomicrmw or
__nvvm_atom_or_gen_ll(&sll, ll);
// CHECK: atomicrmw xor
__nvvm_atom_xor_gen_i(ip, i);
// CHECK: atomicrmw xor
__nvvm_atom_xor_gen_l(&dl, l);
// CHECK: atomicrmw xor
__nvvm_atom_xor_gen_ll(&sll, ll);
// CHECK: atomicrmw xchg
__nvvm_atom_xchg_gen_i(ip, i);
// CHECK: atomicrmw xchg
__nvvm_atom_xchg_gen_l(&dl, l);
// CHECK: atomicrmw xchg
__nvvm_atom_xchg_gen_ll(&sll, ll);
// CHECK: atomicrmw max i32*
__nvvm_atom_max_gen_i(ip, i);
// CHECK: atomicrmw umax i32*
__nvvm_atom_max_gen_ui((unsigned int *)ip, i);
// CHECK: atomicrmw max
__nvvm_atom_max_gen_l(&dl, l);
// CHECK: atomicrmw umax
__nvvm_atom_max_gen_ul((unsigned long *)&dl, l);
// CHECK: atomicrmw max i64*
__nvvm_atom_max_gen_ll(&sll, ll);
// CHECK: atomicrmw umax i64*
__nvvm_atom_max_gen_ull((unsigned long long *)&sll, ll);
// CHECK: atomicrmw min i32*
__nvvm_atom_min_gen_i(ip, i);
// CHECK: atomicrmw umin i32*
__nvvm_atom_min_gen_ui((unsigned int *)ip, i);
// CHECK: atomicrmw min
__nvvm_atom_min_gen_l(&dl, l);
// CHECK: atomicrmw umin
__nvvm_atom_min_gen_ul((unsigned long *)&dl, l);
// CHECK: atomicrmw min i64*
__nvvm_atom_min_gen_ll(&sll, ll);
// CHECK: atomicrmw umin i64*
__nvvm_atom_min_gen_ull((unsigned long long *)&sll, ll);
// CHECK: cmpxchg
// CHECK-NEXT: extractvalue { i32, i1 } {{%[0-9]+}}, 0
__nvvm_atom_cas_gen_i(ip, 0, i);
// CHECK: cmpxchg
// CHECK-NEXT: extractvalue { {{i32|i64}}, i1 } {{%[0-9]+}}, 0
__nvvm_atom_cas_gen_l(&dl, 0, l);
// CHECK: cmpxchg
// CHECK-NEXT: extractvalue { i64, i1 } {{%[0-9]+}}, 0
__nvvm_atom_cas_gen_ll(&sll, 0, ll);
// CHECK: call float @llvm.nvvm.atomic.load.add.f32.p0f32
__nvvm_atom_add_gen_f(fp, f);
// CHECK: call i32 @llvm.nvvm.atomic.load.inc.32.p0i32
__nvvm_atom_inc_gen_ui(uip, ui);
// CHECK: call i32 @llvm.nvvm.atomic.load.dec.32.p0i32
__nvvm_atom_dec_gen_ui(uip, ui);
// CHECK: ret
}
// CHECK-LABEL: nvvm_ldg
__device__ void nvvm_ldg(const void *p) {
// CHECK: call i8 @llvm.nvvm.ldg.global.i.i8.p0i8(i8* {{%[0-9]+}}, i32 1)
// CHECK: call i8 @llvm.nvvm.ldg.global.i.i8.p0i8(i8* {{%[0-9]+}}, i32 1)
__nvvm_ldg_c((const char *)p);
__nvvm_ldg_uc((const unsigned char *)p);
// CHECK: call i16 @llvm.nvvm.ldg.global.i.i16.p0i16(i16* {{%[0-9]+}}, i32 2)
// CHECK: call i16 @llvm.nvvm.ldg.global.i.i16.p0i16(i16* {{%[0-9]+}}, i32 2)
__nvvm_ldg_s((const short *)p);
__nvvm_ldg_us((const unsigned short *)p);
// CHECK: call i32 @llvm.nvvm.ldg.global.i.i32.p0i32(i32* {{%[0-9]+}}, i32 4)
// CHECK: call i32 @llvm.nvvm.ldg.global.i.i32.p0i32(i32* {{%[0-9]+}}, i32 4)
__nvvm_ldg_i((const int *)p);
__nvvm_ldg_ui((const unsigned int *)p);
// LP32: call i32 @llvm.nvvm.ldg.global.i.i32.p0i32(i32* {{%[0-9]+}}, i32 4)
// LP32: call i32 @llvm.nvvm.ldg.global.i.i32.p0i32(i32* {{%[0-9]+}}, i32 4)
// LP64: call i64 @llvm.nvvm.ldg.global.i.i64.p0i64(i64* {{%[0-9]+}}, i32 8)
// LP64: call i64 @llvm.nvvm.ldg.global.i.i64.p0i64(i64* {{%[0-9]+}}, i32 8)
__nvvm_ldg_l((const long *)p);
__nvvm_ldg_ul((const unsigned long *)p);
// CHECK: call float @llvm.nvvm.ldg.global.f.f32.p0f32(float* {{%[0-9]+}}, i32 4)
__nvvm_ldg_f((const float *)p);
// CHECK: call double @llvm.nvvm.ldg.global.f.f64.p0f64(double* {{%[0-9]+}}, i32 8)
__nvvm_ldg_d((const double *)p);
// In practice, the pointers we pass to __ldg will be aligned as appropriate
// for the CUDA <type>N vector types (e.g. short4), which are not the same as
// the LLVM vector types. However, each LLVM vector type has an alignment
// less than or equal to its corresponding CUDA type, so we're OK.
//
// PTX Interoperability section 2.2: "For a vector with an even number of
// elements, its alignment is set to number of elements times the alignment of
// its member: n*alignof(t)."
// CHECK: call <2 x i8> @llvm.nvvm.ldg.global.i.v2i8.p0v2i8(<2 x i8>* {{%[0-9]+}}, i32 2)
// CHECK: call <2 x i8> @llvm.nvvm.ldg.global.i.v2i8.p0v2i8(<2 x i8>* {{%[0-9]+}}, i32 2)
typedef char char2 __attribute__((ext_vector_type(2)));
typedef unsigned char uchar2 __attribute__((ext_vector_type(2)));
__nvvm_ldg_c2((const char2 *)p);
__nvvm_ldg_uc2((const uchar2 *)p);
// CHECK: call <4 x i8> @llvm.nvvm.ldg.global.i.v4i8.p0v4i8(<4 x i8>* {{%[0-9]+}}, i32 4)
// CHECK: call <4 x i8> @llvm.nvvm.ldg.global.i.v4i8.p0v4i8(<4 x i8>* {{%[0-9]+}}, i32 4)
typedef char char4 __attribute__((ext_vector_type(4)));
typedef unsigned char uchar4 __attribute__((ext_vector_type(4)));
__nvvm_ldg_c4((const char4 *)p);
__nvvm_ldg_uc4((const uchar4 *)p);
// CHECK: call <2 x i16> @llvm.nvvm.ldg.global.i.v2i16.p0v2i16(<2 x i16>* {{%[0-9]+}}, i32 4)
// CHECK: call <2 x i16> @llvm.nvvm.ldg.global.i.v2i16.p0v2i16(<2 x i16>* {{%[0-9]+}}, i32 4)
typedef short short2 __attribute__((ext_vector_type(2)));
typedef unsigned short ushort2 __attribute__((ext_vector_type(2)));
__nvvm_ldg_s2((const short2 *)p);
__nvvm_ldg_us2((const ushort2 *)p);
// CHECK: call <4 x i16> @llvm.nvvm.ldg.global.i.v4i16.p0v4i16(<4 x i16>* {{%[0-9]+}}, i32 8)
// CHECK: call <4 x i16> @llvm.nvvm.ldg.global.i.v4i16.p0v4i16(<4 x i16>* {{%[0-9]+}}, i32 8)
typedef short short4 __attribute__((ext_vector_type(4)));
typedef unsigned short ushort4 __attribute__((ext_vector_type(4)));
__nvvm_ldg_s4((const short4 *)p);
__nvvm_ldg_us4((const ushort4 *)p);
// CHECK: call <2 x i32> @llvm.nvvm.ldg.global.i.v2i32.p0v2i32(<2 x i32>* {{%[0-9]+}}, i32 8)
// CHECK: call <2 x i32> @llvm.nvvm.ldg.global.i.v2i32.p0v2i32(<2 x i32>* {{%[0-9]+}}, i32 8)
typedef int int2 __attribute__((ext_vector_type(2)));
typedef unsigned int uint2 __attribute__((ext_vector_type(2)));
__nvvm_ldg_i2((const int2 *)p);
__nvvm_ldg_ui2((const uint2 *)p);
// CHECK: call <4 x i32> @llvm.nvvm.ldg.global.i.v4i32.p0v4i32(<4 x i32>* {{%[0-9]+}}, i32 16)
// CHECK: call <4 x i32> @llvm.nvvm.ldg.global.i.v4i32.p0v4i32(<4 x i32>* {{%[0-9]+}}, i32 16)
typedef int int4 __attribute__((ext_vector_type(4)));
typedef unsigned int uint4 __attribute__((ext_vector_type(4)));
__nvvm_ldg_i4((const int4 *)p);
__nvvm_ldg_ui4((const uint4 *)p);
// CHECK: call <2 x i64> @llvm.nvvm.ldg.global.i.v2i64.p0v2i64(<2 x i64>* {{%[0-9]+}}, i32 16)
// CHECK: call <2 x i64> @llvm.nvvm.ldg.global.i.v2i64.p0v2i64(<2 x i64>* {{%[0-9]+}}, i32 16)
typedef long long longlong2 __attribute__((ext_vector_type(2)));
typedef unsigned long long ulonglong2 __attribute__((ext_vector_type(2)));
__nvvm_ldg_ll2((const longlong2 *)p);
__nvvm_ldg_ull2((const ulonglong2 *)p);
// CHECK: call <2 x float> @llvm.nvvm.ldg.global.f.v2f32.p0v2f32(<2 x float>* {{%[0-9]+}}, i32 8)
typedef float float2 __attribute__((ext_vector_type(2)));
__nvvm_ldg_f2((const float2 *)p);
// CHECK: call <4 x float> @llvm.nvvm.ldg.global.f.v4f32.p0v4f32(<4 x float>* {{%[0-9]+}}, i32 16)
typedef float float4 __attribute__((ext_vector_type(4)));
__nvvm_ldg_f4((const float4 *)p);
// CHECK: call <2 x double> @llvm.nvvm.ldg.global.f.v2f64.p0v2f64(<2 x double>* {{%[0-9]+}}, i32 16)
typedef double double2 __attribute__((ext_vector_type(2)));
__nvvm_ldg_d2((const double2 *)p);
}
|
