You've already forked linux-packaging-mono
41 lines
1.4 KiB
LLVM
41 lines
1.4 KiB
LLVM
|
; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
|
||
|
|
; RUN: llc < %s -march=nvptx64 -mcpu=sm_20 | FileCheck %s
|
||
|
|
|
||
|
|
; Use bar.sync to arrive at a pre-computed barrier number and
|
||
|
|
; wait for all threads in CTA to also arrive:
|
||
|
|
define ptx_device void @test_barrier_named_cta() {
|
||
|
|
; CHECK: mov.u32 %r[[REG0:[0-9]+]], 0;
|
||
|
|
; CHECK: bar.sync %r[[REG0]];
|
||
|
|
; CHECK: mov.u32 %r[[REG1:[0-9]+]], 10;
|
||
|
|
; CHECK: bar.sync %r[[REG1]];
|
||
|
|
; CHECK: mov.u32 %r[[REG2:[0-9]+]], 15;
|
||
|
|
; CHECK: bar.sync %r[[REG2]];
|
||
|
|
; CHECK: ret;
|
||
|
|
call void @llvm.nvvm.barrier.n(i32 0)
|
||
|
|
call void @llvm.nvvm.barrier.n(i32 10)
|
||
|
|
call void @llvm.nvvm.barrier.n(i32 15)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; Use bar.sync to arrive at a pre-computed barrier number and
|
||
|
|
; wait for fixed number of cooperating threads to arrive:
|
||
|
|
define ptx_device void @test_barrier_named() {
|
||
|
|
; CHECK: mov.u32 %r[[REG0A:[0-9]+]], 32;
|
||
|
|
; CHECK: mov.u32 %r[[REG0B:[0-9]+]], 0;
|
||
|
|
; CHECK: bar.sync %r[[REG0B]], %r[[REG0A]];
|
||
|
|
; CHECK: mov.u32 %r[[REG1A:[0-9]+]], 352;
|
||
|
|
; CHECK: mov.u32 %r[[REG1B:[0-9]+]], 10;
|
||
|
|
; CHECK: bar.sync %r[[REG1B]], %r[[REG1A]];
|
||
|
|
; CHECK: mov.u32 %r[[REG2A:[0-9]+]], 992;
|
||
|
|
; CHECK: mov.u32 %r[[REG2B:[0-9]+]], 15;
|
||
|
|
; CHECK: bar.sync %r[[REG2B]], %r[[REG2A]];
|
||
|
|
; CHECK: ret;
|
||
|
|
call void @llvm.nvvm.barrier(i32 0, i32 32)
|
||
|
|
call void @llvm.nvvm.barrier(i32 10, i32 352)
|
||
|
|
call void @llvm.nvvm.barrier(i32 15, i32 992)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @llvm.nvvm.barrier(i32, i32)
|
||
|
|
declare void @llvm.nvvm.barrier.n(i32)
|