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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 | FileCheck %s
// RUN: %clang_cc1 -triple nvptx64-unknown-unknown -fcuda-is-device -S -emit-llvm -o - -x cuda %s | FileCheck %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.ptx.read.tid.x()
// CHECK: call i32 @llvm.ptx.read.tid.y()
// CHECK: call i32 @llvm.ptx.read.tid.z()
// CHECK: call i32 @llvm.ptx.read.tid.w()
int x = __builtin_ptx_read_tid_x();
int y = __builtin_ptx_read_tid_y();
int z = __builtin_ptx_read_tid_z();
int w = __builtin_ptx_read_tid_w();
return x + y + z + w;
}
__device__ int read_ntid() {
// CHECK: call i32 @llvm.ptx.read.ntid.x()
// CHECK: call i32 @llvm.ptx.read.ntid.y()
// CHECK: call i32 @llvm.ptx.read.ntid.z()
// CHECK: call i32 @llvm.ptx.read.ntid.w()
int x = __builtin_ptx_read_ntid_x();
int y = __builtin_ptx_read_ntid_y();
int z = __builtin_ptx_read_ntid_z();
int w = __builtin_ptx_read_ntid_w();
return x + y + z + w;
}
__device__ int read_ctaid() {
// CHECK: call i32 @llvm.ptx.read.ctaid.x()
// CHECK: call i32 @llvm.ptx.read.ctaid.y()
// CHECK: call i32 @llvm.ptx.read.ctaid.z()
// CHECK: call i32 @llvm.ptx.read.ctaid.w()
int x = __builtin_ptx_read_ctaid_x();
int y = __builtin_ptx_read_ctaid_y();
int z = __builtin_ptx_read_ctaid_z();
int w = __builtin_ptx_read_ctaid_w();
return x + y + z + w;
}
__device__ int read_nctaid() {
// CHECK: call i32 @llvm.ptx.read.nctaid.x()
// CHECK: call i32 @llvm.ptx.read.nctaid.y()
// CHECK: call i32 @llvm.ptx.read.nctaid.z()
// CHECK: call i32 @llvm.ptx.read.nctaid.w()
int x = __builtin_ptx_read_nctaid_x();
int y = __builtin_ptx_read_nctaid_y();
int z = __builtin_ptx_read_nctaid_z();
int w = __builtin_ptx_read_nctaid_w();
return x + y + z + w;
}
__device__ int read_ids() {
// CHECK: call i32 @llvm.ptx.read.laneid()
// CHECK: call i32 @llvm.ptx.read.warpid()
// CHECK: call i32 @llvm.ptx.read.nwarpid()
// CHECK: call i32 @llvm.ptx.read.smid()
// CHECK: call i32 @llvm.ptx.read.nsmid()
// CHECK: call i32 @llvm.ptx.read.gridid()
int a = __builtin_ptx_read_laneid();
int b = __builtin_ptx_read_warpid();
int c = __builtin_ptx_read_nwarpid();
int d = __builtin_ptx_read_smid();
int e = __builtin_ptx_read_nsmid();
int f = __builtin_ptx_read_gridid();
return a + b + c + d + e + f;
}
__device__ int read_lanemasks() {
// CHECK: call i32 @llvm.ptx.read.lanemask.eq()
// CHECK: call i32 @llvm.ptx.read.lanemask.le()
// CHECK: call i32 @llvm.ptx.read.lanemask.lt()
// CHECK: call i32 @llvm.ptx.read.lanemask.ge()
// CHECK: call i32 @llvm.ptx.read.lanemask.gt()
int a = __builtin_ptx_read_lanemask_eq();
int b = __builtin_ptx_read_lanemask_le();
int c = __builtin_ptx_read_lanemask_lt();
int d = __builtin_ptx_read_lanemask_ge();
int e = __builtin_ptx_read_lanemask_gt();
return a + b + c + d + e;
}
__device__ long long read_clocks() {
// CHECK: call i32 @llvm.ptx.read.clock()
// CHECK: call i64 @llvm.ptx.read.clock64()
int a = __builtin_ptx_read_clock();
long long b = __builtin_ptx_read_clock64();
return a + b;
}
__device__ int read_pms() {
// CHECK: call i32 @llvm.ptx.read.pm0()
// CHECK: call i32 @llvm.ptx.read.pm1()
// CHECK: call i32 @llvm.ptx.read.pm2()
// CHECK: call i32 @llvm.ptx.read.pm3()
int a = __builtin_ptx_read_pm0();
int b = __builtin_ptx_read_pm1();
int c = __builtin_ptx_read_pm2();
int d = __builtin_ptx_read_pm3();
return a + b + c + d;
}
__device__ void sync() {
// CHECK: call void @llvm.ptx.bar.sync(i32 0)
__builtin_ptx_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, 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: ret
}
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