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R600/SI: Make sure resource descriptors are always stored in SGPRs

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222253 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard 2014-11-18 20:39:39 +00:00
parent 5759f0f944
commit 891e9e7869
2 changed files with 53 additions and 2 deletions
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4
lib/Target/R600/SIISelLowering.cpp
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@ -53,10 +53,10 @@ SITargetLowering::SITargetLowering(TargetMachine &TM) :
addRegisterClass(MVT::v4i32, &AMDGPU::SReg_128RegClass);
addRegisterClass(MVT::v4f32, &AMDGPU::VReg_128RegClass);
addRegisterClass(MVT::v8i32, &AMDGPU::VReg_256RegClass);
addRegisterClass(MVT::v8i32, &AMDGPU::SReg_256RegClass);
addRegisterClass(MVT::v8f32, &AMDGPU::VReg_256RegClass);
addRegisterClass(MVT::v16i32, &AMDGPU::VReg_512RegClass);
addRegisterClass(MVT::v16i32, &AMDGPU::SReg_512RegClass);
addRegisterClass(MVT::v16f32, &AMDGPU::VReg_512RegClass);
computeRegisterProperties();

51
test/CodeGen/R600/sgpr-copy.ll
View File

@ -325,3 +325,54 @@ ENDIF69:
attributes #0 = { "ShaderType"="0" }
; This test checks that image_sample resource descriptors aren't loaded into
; vgprs. The verifier will fail if this happens.
; CHECK-LABEL:{{^}}sample_rsrc:
; CHECK: image_sample
; CHECK: image_sample
; CHECK: s_endpgm
define void @sample_rsrc([6 x <16 x i8>] addrspace(2)* byval %arg, [17 x <16 x i8>] addrspace(2)* byval %arg1, [16 x <4 x i32>] addrspace(2)* byval %arg2, [32 x <8 x i32>] addrspace(2)* byval %arg3, float inreg %arg4, i32 inreg %arg5, <2 x i32> %arg6, <2 x i32> %arg7, <2 x i32> %arg8, <3 x i32> %arg9, <2 x i32> %arg10, <2 x i32> %arg11, <2 x i32> %arg12, float %arg13, float %arg14, float %arg15, float %arg16, float %arg17, float %arg18, i32 %arg19, float %arg20, float %arg21) #0 {
bb:
%tmp = getelementptr [17 x <16 x i8>] addrspace(2)* %arg1, i32 0, i32 0
%tmp22 = load <16 x i8> addrspace(2)* %tmp, !tbaa !0
%tmp23 = call float @llvm.SI.load.const(<16 x i8> %tmp22, i32 16)
%tmp25 = getelementptr [32 x <8 x i32>] addrspace(2)* %arg3, i32 0, i32 0
%tmp26 = load <8 x i32> addrspace(2)* %tmp25, !tbaa !0
%tmp27 = getelementptr [16 x <4 x i32>] addrspace(2)* %arg2, i32 0, i32 0
%tmp28 = load <4 x i32> addrspace(2)* %tmp27, !tbaa !0
%tmp29 = call float @llvm.SI.fs.interp(i32 0, i32 0, i32 %arg5, <2 x i32> %arg7)
%tmp30 = call float @llvm.SI.fs.interp(i32 1, i32 0, i32 %arg5, <2 x i32> %arg7)
%tmp31 = bitcast float %tmp23 to i32
%tmp36 = icmp ne i32 %tmp31, 0
br i1 %tmp36, label %bb38, label %bb80
bb38: ; preds = %bb
%tmp52 = bitcast float %tmp29 to i32
%tmp53 = bitcast float %tmp30 to i32
%tmp54 = insertelement <2 x i32> undef, i32 %tmp52, i32 0
%tmp55 = insertelement <2 x i32> %tmp54, i32 %tmp53, i32 1
%tmp56 = bitcast <8 x i32> %tmp26 to <32 x i8>
%tmp57 = bitcast <4 x i32> %tmp28 to <16 x i8>
%tmp58 = call <4 x float> @llvm.SI.sample.v2i32(<2 x i32> %tmp55, <32 x i8> %tmp56, <16 x i8> %tmp57, i32 2)
br label %bb71
bb80: ; preds = %bb
%tmp81 = bitcast float %tmp29 to i32
%tmp82 = bitcast float %tmp30 to i32
%tmp82.2 = add i32 %tmp82, 1
%tmp83 = insertelement <2 x i32> undef, i32 %tmp81, i32 0
%tmp84 = insertelement <2 x i32> %tmp83, i32 %tmp82.2, i32 1
%tmp85 = bitcast <8 x i32> %tmp26 to <32 x i8>
%tmp86 = bitcast <4 x i32> %tmp28 to <16 x i8>
%tmp87 = call <4 x float> @llvm.SI.sample.v2i32(<2 x i32> %tmp84, <32 x i8> %tmp85, <16 x i8> %tmp86, i32 2)
br label %bb71
bb71: ; preds = %bb80, %bb38
%tmp72 = phi <4 x float> [ %tmp58, %bb38 ], [ %tmp87, %bb80 ]
%tmp88 = extractelement <4 x float> %tmp72, i32 0
call void @llvm.SI.export(i32 15, i32 1, i32 1, i32 0, i32 1, float %tmp88, float %tmp88, float %tmp88, float %tmp88)
ret void
}
attributes #0 = { "ShaderType"="0" "unsafe-fp-math"="true" }
attributes #1 = { nounwind readnone }