; RUN: llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -enable-ipra=1 < %s | FileCheck -check-prefix=GCN %s
; RUN: llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -enable-ipra=0 < %s | FileCheck -check-prefix=GCN %s
; This test is to make sure the return address registers, if clobbered in the
; function or the function has calls, are save/restored when IPRA is enabled/disabled.
; TODO: An artificial test with high register pressure would be more reliable in the
; long run as branches on constants could be fragile.
%struct.ShaderData = type { <3 x float>, <3 x float>, <3 x float>, <3 x float>, i32, i32, i32, i32, i32, float, float, i32, i32, float, float, %struct.differential3, %struct.differential3, %struct.differential, %struct.differential, <3 x float>, <3 x float>, <3 x float>, %struct.differential3, i32, i32, i32, float, <3 x float>, <3 x float>, <3 x float>, [1 x %struct.ShaderClosure] }
%struct.differential = type { float, float }
%struct.differential3 = type { <3 x float>, <3 x float> }
%struct.ShaderClosure = type { <3 x float>, i32, float, <3 x float>, [10 x float], [8 x i8] }
%struct.MicrofacetExtra = type { <3 x float>, <3 x float>, <3 x float>, float, [12 x i8] }
; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare float @llvm.fmuladd.f32(float, float, float) #0
; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare <3 x float> @llvm.fmuladd.v3f32(<3 x float>, <3 x float>, <3 x float>) #0
; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare <4 x float> @llvm.fmuladd.v4f32(<4 x float>, <4 x float>, <4 x float>) #0
; Function Attrs: argmemonly nofree nosync nounwind willreturn
declare void @llvm.lifetime.end.p5i8(i64 immarg, i8 addrspace(5)* nocapture) #1
; Function Attrs: norecurse
define internal fastcc void @svm_node_closure_bsdf(%struct.ShaderData addrspace(1)* %sd, float* %stack, <4 x i32> %node, i32* %offset, i32 %0, i8 %trunc, float %1, float %2, float %mul80, i1 %cmp412.old, <4 x i32> %3, float %4, i32 %5, i1 %cmp440, i1 %cmp442, i1 %or.cond1306, float %.op, %struct.ShaderClosure addrspace(1)* %arrayidx.i.i2202, %struct.ShaderClosure addrspace(1)* %retval.0.i.i22089, %struct.ShaderClosure addrspace(1)* %retval.1.i221310, i1 %cmp575, i32 addrspace(1)* %num_closure_left.i2215, i32 %6, i1 %cmp.i2216, i32 %7, i64 %idx.ext.i2223, i32 %sub5.i2221) #2 {
; GCN-LABEL: {{^}}svm_node_closure_bsdf:
; GCN-DAG: v_writelane_b32 [[CSR_VGPR:v[0-9]+]], s30,
; GCN-DAG: v_writelane_b32 [[CSR_VGPR]], s31,
; GCN: s_movk_i32 s30, 0x60
; GCN-NOT: s31
; GCN-DAG: v_readlane_b32 s31, [[CSR_VGPR]],
; GCN-DAG: v_readlane_b32 s30, [[CSR_VGPR]],
; GCN: s_waitcnt vmcnt(0)
; GCN: s_setpc_b64 s[30:31]
entry:
%8 = extractelement <4 x i32> %node, i64 0
%cmp.i.not = icmp eq i32 undef, 0
br i1 undef, label %common.ret.critedge, label %cond.true
cond.true: ; preds = %entry
%9 = load float, float* null, align 4
%phi.cmp = fcmp oeq float %9, 0.000000e+00
br i1 %phi.cmp, label %common.ret, label %cond.true20
cond.true20: ; preds = %cond.true
%v = zext i8 %trunc to i32
br label %NodeBlock
NodeBlock: ; preds = %cond.true20
%Pivot = icmp slt i32 %v, 44
br i1 %Pivot, label %LeafBlock, label %LeafBlock1
LeafBlock1: ; preds = %NodeBlock
%SwitchLeaf2 = icmp eq i32 %v, 44
br i1 %SwitchLeaf2, label %sw.bb, label %NewDefault
LeafBlock: ; preds = %NodeBlock
%SwitchLeaf = icmp eq i32 %v, 0
br i1 %SwitchLeaf, label %if.end.i.i2285, label %NewDefault
sw.bb: ; preds = %cond.true20
%10 = load float, float* null, align 4
%11 = load float, float* null, align 4
%12 = tail call float @llvm.amdgcn.fmed3.f32(float %1, float 0.000000e+00, float 0.000000e+00)
%mul802 = fmul nsz float %1, 0.000000e+00
%cmp412.old3 = fcmp nsz ogt float %1, 0.000000e+00
br i1 %cmp412.old, label %if.then413, label %common.ret
if.then413: ; preds = %sw.bb
%13 = load <4 x i32>, <4 x i32> addrspace(1)* null, align 16
%14 = extractelement <4 x i32> %node, i64 0
%cmp4404 = fcmp nsz ole float %1, 0.000000e+00
%cmp4425 = icmp eq i32 %0, 0
%or.cond13066 = select i1 %cmp412.old, i1 false, i1 %cmp412.old
br i1 %or.cond1306, label %if.then443, label %if.else568
if.then443: ; preds = %if.then413
br i1 true, label %if.end511, label %common.ret
common.ret.critedge: ; preds = %entry
store i32 0, i32* null, align 4
br label %common.ret
NewDefault: ; preds = %LeafBlock1, %LeafBlock
%phi.store = phi i32 [0, %LeafBlock], [1, %LeafBlock1]
store i32 %phi.store, i32* null, align 4
br label %common.ret
common.ret: ; preds = %if.end.i.i2285, %if.end627.sink.split, %cond.end579, %bsdf_alloc.exit2188, %if.end511, %common.ret.critedge, %if.then443, %sw.bb, %NewDefault, %cond.true
ret void
if.end511: ; preds = %if.then443
br i1 false, label %common.ret, label %if.then519
if.then519: ; preds = %if.end511
br i1 false, label %bsdf_alloc.exit2188, label %if.then.i2172
if.then.i2172: ; preds = %if.then519
br i1 false, label %closure_alloc.exit.i2184, label %if.end.i.i2181
if.end.i.i2181: ; preds = %if.then.i2172
br label %closure_alloc.exit.i2184
closure_alloc.exit.i2184: ; preds = %if.end.i.i2181, %if.then.i2172
br i1 false, label %bsdf_alloc.exit2188, label %if.end.i2186
if.end.i2186: ; preds = %closure_alloc.exit.i2184
br label %bsdf_alloc.exit2188
bsdf_alloc.exit2188: ; preds = %if.end.i2186, %closure_alloc.exit.i2184, %if.then519
br i1 false, label %common.ret, label %if.then534
if.then534: ; preds = %bsdf_alloc.exit2188
%.op7 = fmul nsz float undef, 0.000000e+00
%mul558 = select i1 %cmp440, float 0.000000e+00, float %1
%15 = tail call float @llvm.amdgcn.fmed3.f32(float 0.000000e+00, float 0.000000e+00, float 0.000000e+00)
store float %mul558, float addrspace(1)* null, align 4
br label %if.end627.sink.split
if.else568: ; preds = %if.then413
br i1 undef, label %bsdf_alloc.exit2214, label %if.then.i2198
if.then.i2198: ; preds = %if.else568
br i1 undef, label %closure_alloc.exit.i2210, label %if.end.i.i2207
if.end.i.i2207: ; preds = %if.then.i2198
%arrayidx.i.i22028 = getelementptr inbounds %struct.ShaderData, %struct.ShaderData addrspace(1)* %sd, i64 0, i32 30, i64 undef
br label %closure_alloc.exit.i2210
closure_alloc.exit.i2210: ; preds = %if.end.i.i2207, %if.then.i2198
%retval.0.i.i220899 = phi %struct.ShaderClosure addrspace(1)* [ %arrayidx.i.i2202, %if.end.i.i2207 ], [ null, %if.then.i2198 ]
br i1 false, label %bsdf_alloc.exit2214, label %if.end.i2212
if.end.i2212: ; preds = %closure_alloc.exit.i2210
br label %bsdf_alloc.exit2214
bsdf_alloc.exit2214: ; preds = %if.end.i2212, %closure_alloc.exit.i2210, %if.else568
%retval.1.i22131010 = phi %struct.ShaderClosure addrspace(1)* [ %arrayidx.i.i2202, %if.end.i2212 ], [ null, %closure_alloc.exit.i2210 ], [ null, %if.else568 ]
%cmp57511 = icmp ne %struct.ShaderClosure addrspace(1)* %arrayidx.i.i2202, null
br i1 %cmp442, label %cond.true576, label %cond.end579
cond.true576: ; preds = %bsdf_alloc.exit2214
%num_closure_left.i221512 = getelementptr inbounds %struct.ShaderData, %struct.ShaderData addrspace(1)* %sd, i64 0, i32 25
%16 = load i32, i32 addrspace(1)* %num_closure_left.i2215, align 8
%cmp.i221613 = icmp slt i32 %0, 0
br i1 %cmp440, label %cond.end579, label %if.end.i2227
if.end.i2227: ; preds = %cond.true576
%sub5.i222114 = add nuw nsw i32 %0, 0
%17 = load i32, i32 addrspace(1)* null, align 4294967296
%idx.ext.i222315 = sext i32 %0 to i64
%add.ptr.i2224 = getelementptr inbounds %struct.ShaderData, %struct.ShaderData addrspace(1)* %sd, i64 0, i32 30, i64 %idx.ext.i2223
%idx.ext8.i22252724 = zext i32 %0 to i64
%add.ptr9.i2226 = getelementptr inbounds %struct.ShaderClosure, %struct.ShaderClosure addrspace(1)* %add.ptr.i2224, i64 %idx.ext8.i22252724
%phi.cast2731 = bitcast %struct.ShaderClosure addrspace(1)* %add.ptr9.i2226 to %struct.MicrofacetExtra addrspace(1)*
br label %cond.end579
cond.end579: ; preds = %if.end.i2227, %cond.true576, %bsdf_alloc.exit2214
%cond580 = phi %struct.MicrofacetExtra addrspace(1)* [ null, %bsdf_alloc.exit2214 ], [ %phi.cast2731, %if.end.i2227 ], [ null, %cond.true576 ]
%tobool583 = icmp ne %struct.MicrofacetExtra addrspace(1)* %cond580, null
%or.cond1308 = select i1 %cmp442, i1 %tobool583, i1 false
br i1 %or.cond1308, label %if.then584, label %common.ret
if.then584: ; preds = %cond.end579
store %struct.MicrofacetExtra addrspace(1)* null, %struct.MicrofacetExtra addrspace(1)* addrspace(1)* null, align 4294967296
br label %if.end627.sink.split
if.end627.sink.split: ; preds = %if.then584, %if.then534
store i32 0, i32 addrspace(1)* null, align 4
br label %common.ret
if.end.i.i2285: ; preds = %cond.true20
store i32 0, i32 addrspace(1)* null, align 4294967296
br label %common.ret
}
define internal fastcc void @svm_eval_nodes(%struct.ShaderData addrspace(1)* %sd) {
sw.bb10:
; GCN-LABEL: {{^}}svm_eval_nodes:
; GCN-DAG: v_writelane_b32 [[CSR_VGPR:v[0-9]+]], s30,
; GCN-DAG: v_writelane_b32 [[CSR_VGPR]], s31,
; GCN: s_swappc_b64 s[30:31]
; GCN-DAG: v_readlane_b32 s31, [[CSR_VGPR]],
; GCN-DAG: v_readlane_b32 s30, [[CSR_VGPR]],
; GCN: s_waitcnt vmcnt(0)
; GCN: s_setpc_b64 s[30:31]
call fastcc void @svm_node_closure_bsdf(%struct.ShaderData addrspace(1)* null, float* null, <4 x i32> zeroinitializer, i32* null, i32 undef, i8 undef, float undef, float undef, float undef, i1 undef, <4 x i32> undef, float undef, i32 undef, i1 undef, i1 undef, i1 undef, float undef, %struct.ShaderClosure addrspace(1)* undef, %struct.ShaderClosure addrspace(1)* undef, %struct.ShaderClosure addrspace(1)* undef, i1 undef, i32 addrspace(1)* undef, i32 undef, i1 undef, i32 undef, i64 undef, i32 undef)
ret void
}
define amdgpu_kernel void @kernel_ocl_path_trace_shadow_blocked_dl() {
kernel_set_buffer_pointers.exit:
; GCN-LABEL: {{^}}kernel_ocl_path_trace_shadow_blocked_dl:
; GCN: s_swappc_b64 s[30:31]
; GCN: endpgm
tail call fastcc void @svm_eval_nodes(%struct.ShaderData addrspace(1)* null)
ret void
}
; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare float @llvm.fabs.f32(float) #0
; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare float @llvm.maxnum.f32(float, float) #0
; Function Attrs: nounwind readnone speculatable willreturn
declare float @llvm.amdgcn.fmed3.f32(float, float, float) #3
attributes #0 = { nofree nosync nounwind readnone speculatable willreturn }
attributes #1 = { argmemonly nofree nosync nounwind willreturn }
attributes #2 = { norecurse }
attributes #3 = { nounwind readnone speculatable willreturn }