[llvm] r211931 - [NVPTX] Add support for isspacep instruction
Justin Holewinski
jholewinski at nvidia.com
Fri Jun 27 12:15:22 PDT 2014
On 6/27/14, 3:03 PM, Tom Stellard wrote:
> On Fri, Jun 27, 2014 at 06:35:25PM -0000, Justin Holewinski wrote:
>> Author: jholewinski
>> Date: Fri Jun 27 13:35:24 2014
>> New Revision: 211931
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=211931&view=rev
>> Log:
>> [NVPTX] Add support for isspacep instruction
>>
>> Added:
>> llvm/trunk/test/CodeGen/NVPTX/isspacep.ll
>> Modified:
>> llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td
>> llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td
>> llvm/trunk/lib/Target/NVPTX/NVPTXIntrinsics.td
>>
>> Modified: llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td?rev=211931&r1=211930&r2=211931&view=diff
>> ==============================================================================
>> --- llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td (original)
>> +++ llvm/trunk/include/llvm/IR/IntrinsicsNVVM.td Fri Jun 27 13:35:24 2014
>> @@ -889,6 +889,24 @@ def int_nvvm_compiler_error :
>> def int_nvvm_compiler_warn :
>> Intrinsic<[], [llvm_anyptr_ty], [], "llvm.nvvm.compiler.warn">;
>>
>> +// isspacep.{const, global, local, shared}
>> +def int_nvvm_isspacep_const
>> + : Intrinsic<[llvm_i1_ty], [llvm_ptr_ty], [IntrNoMem],
>> + "llvm.nvvm.isspacep.const">,
>> + GCCBuiltin<"__nvvm_isspacep_const">;
>> +def int_nvvm_isspacep_global
>> + : Intrinsic<[llvm_i1_ty], [llvm_ptr_ty], [IntrNoMem],
>> + "llvm.nvvm.isspacep.global">,
>> + GCCBuiltin<"__nvvm_isspacep_global">;
>> +def int_nvvm_isspacep_local
>> + : Intrinsic<[llvm_i1_ty], [llvm_ptr_ty], [IntrNoMem],
>> + "llvm.nvvm.isspacep.local">,
>> + GCCBuiltin<"__nvvm_isspacep_local">;
>> +def int_nvvm_isspacep_shared
>> + : Intrinsic<[llvm_i1_ty], [llvm_ptr_ty], [IntrNoMem],
>> + "llvm.nvvm.isspacep.shared">,
>> + GCCBuiltin<"__nvvm_isspacep_shared">;
>> +
>> // Environment register read
>> def int_nvvm_read_ptx_sreg_envreg0
>> : Intrinsic<[llvm_i32_ty], [], [IntrNoMem],
>>
>> Modified: llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td?rev=211931&r1=211930&r2=211931&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td (original)
>> +++ llvm/trunk/lib/Target/NVPTX/NVPTXInstrInfo.td Fri Jun 27 13:35:24 2014
>> @@ -161,6 +161,8 @@ def hasHWROT32 : Predicate<"Subtarget.ha
>>
>> def true : Predicate<"1">;
>>
>> +def hasPTX31 : Predicate<"Subtarget.getPTXVersion() >= 31">;
>> +
>>
>> //===----------------------------------------------------------------------===//
>> // Some Common Instruction Class Templates
>>
>> Modified: llvm/trunk/lib/Target/NVPTX/NVPTXIntrinsics.td
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/NVPTX/NVPTXIntrinsics.td?rev=211931&r1=211930&r2=211931&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Target/NVPTX/NVPTXIntrinsics.td (original)
>> +++ llvm/trunk/lib/Target/NVPTX/NVPTXIntrinsics.td Fri Jun 27 13:35:24 2014
>> @@ -1689,6 +1689,44 @@ def INT_NVVM_COMPILER_ERROR_64 : NVPTXIn
>> [(int_nvvm_compiler_error Int64Regs:$a)]>;
>>
>>
>> +// isspacep
>> +
>> +def ISSPACEP_CONST_32
>> + : NVPTXInst<(outs Int1Regs:$d), (ins Int32Regs:$a),
>> + "isspacep.const \t$d, $a;",
>> + [(set Int1Regs:$d, (int_nvvm_isspacep_const Int32Regs:$a))]>,
> You can use types here instead of register classes. e.g.
>
> [(set i1:$d, (int_nvvm_isspacep_const i32:$a))]
>
> This may not matter for your target if Int1Regs and Int32Regs each only support
> one type, but I think this feature was added for a reason, and I'm not sure what
> the implications of using registers here will be in the future.
Right; the short answer is that this code is shared with some builds
that are using LLVM code from before this support was added. It's on my
to-do list to purge our code of the old convention once we do not need
to support such builds of LLVM.
>
> -Tom
>
>> + Requires<[hasPTX31]>;
>> +def ISSPACEP_CONST_64
>> + : NVPTXInst<(outs Int1Regs:$d), (ins Int64Regs:$a),
>> + "isspacep.const \t$d, $a;",
>> + [(set Int1Regs:$d, (int_nvvm_isspacep_const Int64Regs:$a))]>,
>> + Requires<[hasPTX31]>;
>> +def ISSPACEP_GLOBAL_32
>> + : NVPTXInst<(outs Int1Regs:$d), (ins Int32Regs:$a),
>> + "isspacep.global \t$d, $a;",
>> + [(set Int1Regs:$d, (int_nvvm_isspacep_global Int32Regs:$a))]>;
>> +def ISSPACEP_GLOBAL_64
>> + : NVPTXInst<(outs Int1Regs:$d), (ins Int64Regs:$a),
>> + "isspacep.global \t$d, $a;",
>> + [(set Int1Regs:$d, (int_nvvm_isspacep_global Int64Regs:$a))]>;
>> +def ISSPACEP_LOCAL_32
>> + : NVPTXInst<(outs Int1Regs:$d), (ins Int32Regs:$a),
>> + "isspacep.local \t$d, $a;",
>> + [(set Int1Regs:$d, (int_nvvm_isspacep_local Int32Regs:$a))]>;
>> +def ISSPACEP_LOCAL_64
>> + : NVPTXInst<(outs Int1Regs:$d), (ins Int64Regs:$a),
>> + "isspacep.local \t$d, $a;",
>> + [(set Int1Regs:$d, (int_nvvm_isspacep_local Int64Regs:$a))]>;
>> +def ISSPACEP_SHARED_32
>> + : NVPTXInst<(outs Int1Regs:$d), (ins Int32Regs:$a),
>> + "isspacep.shared \t$d, $a;",
>> + [(set Int1Regs:$d, (int_nvvm_isspacep_shared Int32Regs:$a))]>;
>> +def ISSPACEP_SHARED_64
>> + : NVPTXInst<(outs Int1Regs:$d), (ins Int64Regs:$a),
>> + "isspacep.shared \t$d, $a;",
>> + [(set Int1Regs:$d, (int_nvvm_isspacep_shared Int64Regs:$a))]>;
>> +
>> +
>> // Special register reads
>> def MOV_SPECIAL : NVPTXInst<(outs Int32Regs:$d),
>> (ins SpecialRegs:$r),
>>
>> Added: llvm/trunk/test/CodeGen/NVPTX/isspacep.ll
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/NVPTX/isspacep.ll?rev=211931&view=auto
>> ==============================================================================
>> --- llvm/trunk/test/CodeGen/NVPTX/isspacep.ll (added)
>> +++ llvm/trunk/test/CodeGen/NVPTX/isspacep.ll Fri Jun 27 13:35:24 2014
>> @@ -0,0 +1,35 @@
>> +; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
>> +
>> +declare i1 @llvm.nvvm.isspacep.const(i8*) readnone noinline
>> +declare i1 @llvm.nvvm.isspacep.global(i8*) readnone noinline
>> +declare i1 @llvm.nvvm.isspacep.local(i8*) readnone noinline
>> +declare i1 @llvm.nvvm.isspacep.shared(i8*) readnone noinline
>> +
>> +; CHECK: is_const
>> +define i1 @is_const(i8* %addr) {
>> +; CHECK: isspacep.const
>> + %v = tail call i1 @llvm.nvvm.isspacep.const(i8* %addr)
>> + ret i1 %v
>> +}
>> +
>> +; CHECK: is_global
>> +define i1 @is_global(i8* %addr) {
>> +; CHECK: isspacep.global
>> + %v = tail call i1 @llvm.nvvm.isspacep.global(i8* %addr)
>> + ret i1 %v
>> +}
>> +
>> +; CHECK: is_local
>> +define i1 @is_local(i8* %addr) {
>> +; CHECK: isspacep.local
>> + %v = tail call i1 @llvm.nvvm.isspacep.local(i8* %addr)
>> + ret i1 %v
>> +}
>> +
>> +; CHECK: is_shared
>> +define i1 @is_shared(i8* %addr) {
>> +; CHECK: isspacep.shared
>> + %v = tail call i1 @llvm.nvvm.isspacep.shared(i8* %addr)
>> + ret i1 %v
>> +}
>> +
>>
>>
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>> llvm-commits at cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
--
Thanks,
Justin Holewinski
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