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R600/SI: Replace v1i32 type with i32 in imageload and sample intrinsics

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188430 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard 2013-08-14 23:24:53 +00:00
parent 68db37b952
commit e8e33f448e
5 changed files with 35 additions and 4 deletions
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2
lib/Target/R600/SIISelLowering.cpp
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@ -43,8 +43,6 @@ SITargetLowering::SITargetLowering(TargetMachine &TM) :
addRegisterClass(MVT::i32, &AMDGPU::VSrc_32RegClass);
addRegisterClass(MVT::f32, &AMDGPU::VSrc_32RegClass);
addRegisterClass(MVT::v1i32, &AMDGPU::VSrc_32RegClass);
addRegisterClass(MVT::f64, &AMDGPU::VSrc_64RegClass);
addRegisterClass(MVT::v2i32, &AMDGPU::VSrc_64RegClass);
addRegisterClass(MVT::v2f32, &AMDGPU::VSrc_64RegClass);

2
lib/Target/R600/SIInstrInfo.td
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@ -27,7 +27,7 @@ def SIload_input : SDNode<"AMDGPUISD::LOAD_INPUT",
>;
class SDSample<string opcode> : SDNode <opcode,
SDTypeProfile<1, 4, [SDTCisVT<0, v4f32>, SDTCisVec<1>, SDTCisVT<2, v32i8>,
SDTypeProfile<1, 4, [SDTCisVT<0, v4f32>, SDTCisVT<2, v32i8>,
SDTCisVT<3, i128>, SDTCisVT<4, i32>]>
>;

2
lib/Target/R600/SIInstructions.td
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@ -1326,7 +1326,7 @@ def : Pat <
/* SIsample for simple 1D texture lookup */
def : Pat <
(SIsample v1i32:$addr, v32i8:$rsrc, i128:$sampler, imm),
(SIsample i32:$addr, v32i8:$rsrc, i128:$sampler, imm),
(IMAGE_SAMPLE_V1 0xf, 0, 0, 0, 0, 0, 0, 0, $addr, $rsrc, $sampler)
>;

16
lib/Target/R600/SITypeRewriter.cpp
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@ -16,6 +16,9 @@
/// legal for some compute APIs, and we don't want to declare it as legal
/// in the backend, because we want the legalizer to expand all v16i8
/// operations.
/// v1* => *
/// - Having v1* types complicates the legalizer and we can easily replace
/// - them with the element type.
//===----------------------------------------------------------------------===//
#include "AMDGPU.h"
@ -109,6 +112,19 @@ void SITypeRewriter::visitCallInst(CallInst &I) {
Types.push_back(i128);
NeedToReplace = true;
Name = Name + ".i128";
} else if (Arg->getType()->isVectorTy() &&
Arg->getType()->getVectorNumElements() == 1 &&
Arg->getType()->getVectorElementType() ==
Type::getInt32Ty(I.getContext())){
Type *ElementTy = Arg->getType()->getVectorElementType();
std::string TypeName = "i32";
InsertElementInst *Def = dyn_cast<InsertElementInst>(Arg);
assert(Def);
Args.push_back(Def->getOperand(1));
Types.push_back(ElementTy);
std::string VecTypeName = "v1" + TypeName;
Name = Name.replace(Name.find(VecTypeName), VecTypeName.length(), TypeName);
NeedToReplace = true;
} else {
Args.push_back(Arg);
Types.push_back(Arg->getType());

17
test/CodeGen/R600/llvm.SI.sample.ll
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@ -135,6 +135,23 @@ define void @test(i32 %a1, i32 %a2, i32 %a3, i32 %a4) {
ret void
}
; CHECK: @v1
; CHECK: IMAGE_SAMPLE VGPR{{[[0-9]}}_VGPR{{[0-9]}}_VGPR{{[0-9]}}_VGPR{{[0-9]}}, 15
define void @v1(i32 %a1) {
entry:
%0 = insertelement <1 x i32> undef, i32 %a1, i32 0
%1 = call <4 x float> @llvm.SI.sample.v1i32(<1 x i32> %0, <32 x i8> undef, <16 x i8> undef, i32 0)
%2 = extractelement <4 x float> %1, i32 0
%3 = extractelement <4 x float> %1, i32 1
%4 = extractelement <4 x float> %1, i32 2
%5 = extractelement <4 x float> %1, i32 3
call void @llvm.SI.export(i32 15, i32 0, i32 1, i32 12, i32 0, float %2, float %3, float %4, float %5)
ret void
}
declare <4 x float> @llvm.SI.sample.v1i32(<1 x i32>, <32 x i8>, <16 x i8>, i32) readnone
declare <4 x float> @llvm.SI.sample.(<4 x i32>, <32 x i8>, <16 x i8>, i32) readnone
declare void @llvm.SI.export(i32, i32, i32, i32, i32, float, float, float, float)