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...latile i16* %I_1 %T_2 = load volatile i16* %I_2 %T_3 = load volatile i16* %I_3 call void @llvm.nvvm.barrier0() %T_5 = add i16 %T_1, %T_3 call void @llvm.nvvm.barrier0() %T_7 = mul i16 %T_0, %T_2 %T_8 = xor i16 %T_2, %T_0 %T_9 = mul i16 %T_0, %T_1 call void @llvm.nvvm.barrier0() %T_11 = sub i16 %T_7, %T_5 %T_12 = add i16 %T_8, %T_9 %T_13 = add i16 %T_11, %T_12 store volatile i16 %T_13, i16* %O_0 ret void } ;declare i32 @llvm.nvvm.read.ptx.sreg.tid.x() declare void @llvm.nvvm.barrier0() output --------- define void @test(i16* nocapture %I_0, i16* nocapture %I_1, i16* no...

is there any guarantee that the nvptx intrinsic "llvm.nvvm.barrier0" will not be moved around by opt ? In other words, can I expect all the instructions above "llvm.nvvm.barrier0" to remain above it and those below it to remain below, after all the opt passes are run ? If that is not the case, is there a way to define such an intrinsic ? Thanks. -------------- next part