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llvm-mirror/test/CodeGen/R600/llvm.AMDGPU.barrier.local.ll
Tom Stellard 97e3c49801 R600: Add support for GROUP_BARRIER instruction
Reviewed-by: Vincent Lejeune<vljn at ovi.com>
llvm-svn: 185161
2013-06-28 15:46:59 +00:00

25 lines
690 B
LLVM

; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s
; CHECK: GROUP_BARRIER
define void @test(i32 addrspace(1)* %out) {
entry:
%0 = call i32 @llvm.r600.read.tidig.x()
%1 = getelementptr i32 addrspace(1)* %out, i32 %0
store i32 %0, i32 addrspace(1)* %1
call void @llvm.AMDGPU.barrier.local()
%2 = call i32 @llvm.r600.read.local.size.x()
%3 = sub i32 %2, 1
%4 = sub i32 %3, %0
%5 = getelementptr i32 addrspace(1)* %out, i32 %4
%6 = load i32 addrspace(1)* %5
store i32 %6, i32 addrspace(1)* %1
ret void
}
declare i32 @llvm.r600.read.tidig.x() #0
declare void @llvm.AMDGPU.barrier.local()
declare i32 @llvm.r600.read.local.size.x() #0
attributes #0 = { readnone }