r600/sfn: fix class Shader object last_alu_with_indirect_reg memory leak

For instance, this issue is triggered with "piglit/bin/glsl-vs-arrays -auto -fbo":
Direct leak of 104 byte(s) in 1 object(s) allocated from:
    #0 0x7f2fab415f57 in operator new(unsigned long) (/usr/lib64/libasan.so.6+0xb2f57)
    waydroid#1 0x7f2f9fd9d541 in __gnu_cxx::new_allocator<std::__detail::_Hash_node_base*>::allocate(unsigned long, void const*) /usr/include/c++/11.4.0/ext/new_allocator.h:127
    waydroid#2 0x7f2f9fd9d541 in std::allocator_traits<std::allocator<std::__detail::_Hash_node_base*> >::allocate(std::allocator<std::__detail::_Hash_node_base*>&, unsigned long) /usr/include/c++/11.4.0/bits/alloc_traits.h:464
    waydroid#3 0x7f2f9fd9d541 in std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<int const, r600::Instr*>, false> > >::_M_allocate_buckets(unsigned long) /usr/include/c++/11.4.0/bits/hashtable_policy.h:1927
    waydroid#4 0x7f2f9fd9d541 in std::_Hashtable<int, std::pair<int const, r600::Instr*>, std::allocator<std::pair<int const, r600::Instr*> >, std::__detail::_Select1st, std::equal_to<int>, std::hash<int>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_allocate_buckets(unsigned long) /usr/include/c++/11.4.0/bits/hashtable.h:440
    waydroid#5 0x7f2f9fd9d541 in std::_Hashtable<int, std::pair<int const, r600::Instr*>, std::allocator<std::pair<int const, r600::Instr*> >, std::__detail::_Select1st, std::equal_to<int>, std::hash<int>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_rehash_aux(unsigned long, std::integral_constant<bool, true>) /usr/include/c++/11.4.0/bits/hashtable.h:2382
    waydroid#6 0x7f2f9fd9d541 in std::_Hashtable<int, std::pair<int const, r600::Instr*>, std::allocator<std::pair<int const, r600::Instr*> >, std::__detail::_Select1st, std::equal_to<int>, std::hash<int>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_rehash(unsigned long, unsigned long const&) /usr/include/c++/11.4.0/bits/hashtable.h:2361
    waydroid#7 0x7f2f9fd9d541 in std::_Hashtable<int, std::pair<int const, r600::Instr*>, std::allocator<std::pair<int const, r600::Instr*> >, std::__detail::_Select1st, std::equal_to<int>, std::hash<int>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_insert_unique_node(unsigned long, unsigned long, std::__detail::_Hash_node<std::pair<int const, r600::Instr*>, false>*, unsigned long) /usr/include/c++/11.4.0/bits/hashtable.h:2021
    waydroid#8 0x7f2f9fd9e7f8 in std::__detail::_Map_base<int, std::pair<int const, r600::Instr*>, std::allocator<std::pair<int const, r600::Instr*> >, std::__detail::_Select1st, std::equal_to<int>, std::hash<int>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true>, true>::operator[](int&&) /usr/include/c++/11.4.0/bits/hashtable_policy.h:741
    waydroid#9 0x7f2f9fd9f6fe in std::unordered_map<int, r600::Instr*, std::hash<int>, std::equal_to<int>, std::allocator<std::pair<int const, r600::Instr*> > >::operator[](int&&) /usr/include/c++/11.4.0/bits/unordered_map.h:984
    waydroid#10 0x7f2f9fd9f6fe in r600::Shader::InstructionChain::visit(r600::AluInstr*) ../src/gallium/drivers/r600/sfn/sfn_shader.cpp:1358
    waydroid#11 0x7f2f9fd8f309 in r600::Shader::emit_instruction(r600::Instr*) ../src/gallium/drivers/r600/sfn/sfn_shader.cpp:1419
    #12 0x7f2f9fd8f822 in r600::RegisterReadHandler::visit(r600::LocalArray&) ../src/gallium/drivers/r600/sfn/sfn_shader.cpp:1040
    #13 0x7f2f9fd8e726 in r600::Shader::emit_load_reg_indirect(nir_intrinsic_instr*) ../src/gallium/drivers/r600/sfn/sfn_shader.cpp:993
    #14 0x7f2f9fd8de5c in r600::Shader::process_instr(nir_instr*) ../src/gallium/drivers/r600/sfn/sfn_shader.cpp:848
    #15 0x7f2f9fd8de5c in r600::Shader::process_block(nir_block*) ../src/gallium/drivers/r600/sfn/sfn_shader.cpp:836
    #16 0x7f2f9fd962f2 in r600::Shader::process_cf_node(nir_cf_node*) ../src/gallium/drivers/r600/sfn/sfn_shader.cpp:669
    #17 0x7f2f9fdac01a in r600::Shader::process(nir_shader*) ../src/gallium/drivers/r600/sfn/sfn_shader.cpp:537
    #18 0x7f2f9fdac3d1 in r600::Shader::translate_from_nir(nir_shader*, pipe_stream_output_info const*, r600_shader*, r600_shader_key const&, r600_chip_class, radeon_family) ../src/gallium/drivers/r600/sfn/sfn_shader.cpp:494
    #19 0x7f2f9fb5c8f5 in r600_shader_from_nir ../src/gallium/drivers/r600/r600_sfn.cpp:111
    #20 0x7f2f9fb5e50c in r600_pipe_shader_create ../src/gallium/drivers/r600/r600_shader.c:198
    #21 0x7f2f9fb96642 in r600_shader_select ../src/gallium/drivers/r600/r600_state_common.c:961
    #22 0x7f2f9fb97340 in r600_create_shader_state ../src/gallium/drivers/r600/r600_state_common.c:1056
    #23 0x7f2f9e060f82 in st_create_common_variant ../src/mesa/state_tracker/st_program.c:720
    #24 0x7f2f9e06e779 in st_get_common_variant ../src/mesa/state_tracker/st_program.c:773
    #25 0x7f2f9e06f78d in st_precompile_shader_variant ../src/mesa/state_tracker/st_program.c:1259
    #26 0x7f2f9e06f78d in st_finalize_program ../src/mesa/state_tracker/st_program.c:1345
    #27 0x7f2f9ead0f20 in st_link_glsl_to_nir ../src/mesa/state_tracker/st_glsl_to_nir.cpp:723
    #28 0x7f2f9ead0f20 in st_link_shader ../src/mesa/state_tracker/st_glsl_to_nir.cpp:951
    #29 0x7f2f9e9b0d15 in link_program ../src/mesa/main/shaderapi.c:1336
    #30 0x7f2f9e9b0d15 in link_program_error ../src/mesa/main/shaderapi.c:1447

Fixes: ddb167e ("r600/sfn: Handle indirect array load/store dependencies better")
Signed-off-by: Patrick Lerda <[email protected]>
Reviewed-by: Gert Wollny <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27334>

Author: Patrick Lerda

src/gallium/drivers/r600/sfn/sfn_shader.h

@@ -396,7 +396,12 @@ class Shader : public Allocate {
       Instr *last_kill_instr{nullptr};
       Instr *last_lds_access{nullptr};
       Instr *last_group_barrier{nullptr};
-      std::unordered_map<int, Instr * > last_alu_with_indirect_reg;
+      std::unordered_map<int,
+                         Instr *,
+                         std::hash<int>,
+                         std::equal_to<int>,
+                         Allocator<std::pair<const int, Instr *>>>
+         last_alu_with_indirect_reg;
       bool prepare_mem_barrier{false};
    };