Mercurial > hg > CbC > CbC_llvm
view test/CodeGen/AMDGPU/private-memory-atomics.ll @ 95:afa8332a0e37 LLVM3.8
LLVM 3.8
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Tue, 13 Oct 2015 17:48:58 +0900 |
parents | |
children | 1172e4bd9c6f |
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; RUN: llc -verify-machineinstrs -march=amdgcn -mcpu=SI < %s ; RUN: llc -verify-machineinstrs -march=amdgcn -mcpu=tonga < %s ; This works because promote allocas pass replaces these with LDS atomics. ; Private atomics have no real use, but at least shouldn't crash on it. define void @atomicrmw_private(i32 addrspace(1)* %out, i32 %in) nounwind { entry: %tmp = alloca [2 x i32] %tmp1 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 0 %tmp2 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 1 store i32 0, i32* %tmp1 store i32 1, i32* %tmp2 %tmp3 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 %in %tmp4 = atomicrmw add i32* %tmp3, i32 7 acq_rel store i32 %tmp4, i32 addrspace(1)* %out ret void } define void @cmpxchg_private(i32 addrspace(1)* %out, i32 %in) nounwind { entry: %tmp = alloca [2 x i32] %tmp1 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 0 %tmp2 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 1 store i32 0, i32* %tmp1 store i32 1, i32* %tmp2 %tmp3 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 %in %tmp4 = cmpxchg i32* %tmp3, i32 0, i32 1 acq_rel monotonic %val = extractvalue { i32, i1 } %tmp4, 0 store i32 %val, i32 addrspace(1)* %out ret void }