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c3cc8fa604
Creates a configurable regalloc pipeline. Ensure specific llc options do what they say and nothing more: -reglloc=... has no effect other than selecting the allocator pass itself. This patch introduces a new umbrella flag, "-optimize-regalloc", to enable/disable the optimizing regalloc "superpass". This allows for example testing coalscing and scheduling under -O0 or vice-versa. When a CodeGen pass requires the MachineFunction to have a particular property, we need to explicitly define that property so it can be directly queried rather than naming a specific Pass. For example, to check for SSA, use MRI->isSSA, not addRequired<PHIElimination>. CodeGen transformation passes are never "required" as an analysis ProcessImplicitDefs does not require LiveVariables. We have a plan to massively simplify some of the early passes within the regalloc superpass. llvm-svn: 150226
99 lines
8.2 KiB
LLVM
99 lines
8.2 KiB
LLVM
; RUN: llc < %s -march=x86 -O0 -fast-isel=false -optimize-regalloc -regalloc=basic | grep mov | count 5
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; PR2343
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%llvm.dbg.anchor.type = type { i32, i32 }
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%struct.CUMULATIVE_ARGS = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32 }
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%struct.VEC_basic_block_base = type { i32, i32, [1 x %struct.basic_block_def*] }
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%struct.VEC_basic_block_gc = type { %struct.VEC_basic_block_base }
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%struct.VEC_edge_base = type { i32, i32, [1 x %struct.edge_def*] }
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%struct.VEC_edge_gc = type { %struct.VEC_edge_base }
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%struct.VEC_rtx_base = type { i32, i32, [1 x %struct.rtx_def*] }
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%struct.VEC_rtx_gc = type { %struct.VEC_rtx_base }
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%struct.VEC_temp_slot_p_base = type { i32, i32, [1 x %struct.temp_slot*] }
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%struct.VEC_temp_slot_p_gc = type { %struct.VEC_temp_slot_p_base }
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%struct.VEC_tree_base = type { i32, i32, [1 x %struct.tree_node*] }
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%struct.VEC_tree_gc = type { %struct.VEC_tree_base }
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%struct.__sbuf = type { i8*, i32 }
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%struct._obstack_chunk = type { i8*, %struct._obstack_chunk*, [4 x i8] }
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%struct.basic_block_def = type { %struct.tree_node*, %struct.VEC_edge_gc*, %struct.VEC_edge_gc*, i8*, %struct.loop*, [2 x %struct.et_node*], %struct.basic_block_def*, %struct.basic_block_def*, %struct.basic_block_il_dependent, %struct.tree_node*, %struct.edge_prediction*, i64, i32, i32, i32, i32 }
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%struct.basic_block_il_dependent = type { %struct.rtl_bb_info* }
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%struct.bitmap_element_def = type { %struct.bitmap_element_def*, %struct.bitmap_element_def*, i32, [4 x i32] }
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%struct.bitmap_head_def = type { %struct.bitmap_element_def*, %struct.bitmap_element_def*, i32, %struct.bitmap_obstack* }
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%struct.bitmap_obstack = type { %struct.bitmap_element_def*, %struct.bitmap_head_def*, %struct.obstack }
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%struct.block_symbol = type { [3 x %struct.cfg_stats_d], %struct.object_block*, i64 }
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%struct.cfg_stats_d = type { i32 }
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%struct.control_flow_graph = type { %struct.basic_block_def*, %struct.basic_block_def*, %struct.VEC_basic_block_gc*, i32, i32, i32, %struct.VEC_basic_block_gc*, i32 }
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%struct.def_optype_d = type { %struct.def_optype_d*, %struct.tree_node** }
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%struct.edge_def = type { %struct.basic_block_def*, %struct.basic_block_def*, %struct.edge_def_insns, i8*, %struct.__sbuf*, i32, i32, i64, i32 }
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%struct.edge_def_insns = type { %struct.rtx_def* }
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%struct.edge_prediction = type { %struct.edge_prediction*, %struct.edge_def*, i32, i32 }
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%struct.eh_status = type opaque
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%struct.emit_status = type { i32, i32, %struct.rtx_def*, %struct.rtx_def*, %struct.sequence_stack*, i32, %struct.__sbuf, i32, i8*, %struct.rtx_def** }
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%struct.et_node = type opaque
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%struct.expr_status = type { i32, i32, i32, %struct.rtx_def*, %struct.rtx_def*, %struct.rtx_def* }
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%struct.function = type { %struct.eh_status*, %struct.expr_status*, %struct.emit_status*, %struct.varasm_status*, %struct.control_flow_graph*, %struct.tree_node*, %struct.function*, i32, i32, i32, i32, %struct.rtx_def*, %struct.CUMULATIVE_ARGS, %struct.rtx_def*, %struct.rtx_def*, %struct.initial_value_struct*, %struct.rtx_def*, %struct.rtx_def*, %struct.rtx_def*, %struct.rtx_def*, %struct.rtx_def*, %struct.rtx_def*, i8, i32, i64, %struct.tree_node*, %struct.tree_node*, %struct.rtx_def*, %struct.VEC_temp_slot_p_gc*, %struct.temp_slot*, %struct.var_refs_queue*, i32, i32, i32, i32, %struct.machine_function*, i32, i32, %struct.language_function*, %struct.htab*, %struct.rtx_def*, i32, i32, i32, %struct.__sbuf, %struct.VEC_tree_gc*, %struct.tree_node*, i8*, i8*, i8*, i8*, i8*, %struct.tree_node*, i8, i8, i8, i8, i8, i8 }
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%struct.htab = type { i32 (i8*)*, i32 (i8*, i8*)*, void (i8*)*, i8**, i32, i32, i32, i32, i32, i8* (i32, i32)*, void (i8*)*, i8*, i8* (i8*, i32, i32)*, void (i8*, i8*)*, i32 }
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%struct.initial_value_struct = type opaque
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%struct.lang_decl = type opaque
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%struct.language_function = type opaque
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%struct.loop = type { i32, %struct.basic_block_def*, %struct.basic_block_def*, %llvm.dbg.anchor.type, i32, i32, i32, i32, %struct.loop**, i32, %struct.loop*, %struct.loop*, %struct.loop*, %struct.loop*, i8*, %struct.tree_node*, %struct.tree_node*, %struct.nb_iter_bound*, %struct.edge_def*, i32 }
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%struct.machine_function = type opaque
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%struct.maydef_optype_d = type { %struct.maydef_optype_d*, %struct.tree_node*, %struct.tree_node*, %struct.ssa_use_operand_d }
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%struct.nb_iter_bound = type { %struct.tree_node*, %struct.tree_node*, %struct.nb_iter_bound* }
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%struct.object_block = type { %struct.section*, i32, i64, %struct.VEC_rtx_gc*, %struct.VEC_rtx_gc* }
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%struct.obstack = type { i32, %struct._obstack_chunk*, i8*, i8*, i8*, i32, i32, %struct._obstack_chunk* (i8*, i32)*, void (i8*, %struct._obstack_chunk*)*, i8*, i8 }
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%struct.rtl_bb_info = type { %struct.rtx_def*, %struct.rtx_def*, %struct.bitmap_head_def*, %struct.bitmap_head_def*, %struct.rtx_def*, %struct.rtx_def*, i32 }
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%struct.rtx_def = type { i16, i8, i8, %struct.u }
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%struct.section = type { %struct.unnamed_section }
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%struct.sequence_stack = type { %struct.rtx_def*, %struct.rtx_def*, %struct.sequence_stack* }
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%struct.ssa_use_operand_d = type { %struct.ssa_use_operand_d*, %struct.ssa_use_operand_d*, %struct.tree_node*, %struct.tree_node** }
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%struct.stmt_ann_d = type { %struct.tree_ann_common_d, i8, %struct.basic_block_def*, %struct.stmt_operands_d, %struct.bitmap_head_def*, i32, i8* }
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%struct.stmt_operands_d = type { %struct.def_optype_d*, %struct.use_optype_d*, %struct.maydef_optype_d*, %struct.vuse_optype_d*, %struct.maydef_optype_d* }
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%struct.temp_slot = type opaque
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%struct.tree_ann_common_d = type { i32, i8*, %struct.tree_node* }
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%struct.tree_ann_d = type { %struct.stmt_ann_d }
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%struct.tree_common = type { %struct.tree_node*, %struct.tree_node*, %struct.tree_ann_d*, i8, i8, i8, i8, i8 }
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%struct.tree_decl_common = type { %struct.tree_decl_minimal, %struct.tree_node*, i8, i8, i8, i8, i8, i32, %struct.tree_decl_u1, %struct.tree_node*, %struct.tree_node*, %struct.tree_node*, %struct.tree_node*, i64, %struct.lang_decl* }
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%struct.tree_decl_minimal = type { %struct.tree_common, %struct.__sbuf, i32, %struct.tree_node*, %struct.tree_node* }
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%struct.tree_decl_non_common = type { %struct.tree_decl_with_vis, %struct.tree_node*, %struct.tree_node*, %struct.tree_node*, %struct.tree_node* }
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%struct.tree_decl_u1 = type { i64 }
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%struct.tree_decl_with_rtl = type { %struct.tree_decl_common, %struct.rtx_def*, i32 }
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%struct.tree_decl_with_vis = type { %struct.tree_decl_with_rtl, %struct.tree_node*, %struct.tree_node*, i8, i8, i8 }
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%struct.tree_function_decl = type { %struct.tree_decl_non_common, i8, i8, i64, %struct.function* }
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%struct.tree_node = type { %struct.tree_function_decl }
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%struct.u = type { %struct.block_symbol }
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%struct.unnamed_section = type { %struct.cfg_stats_d, void (i8*)*, i8*, %struct.section* }
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%struct.use_optype_d = type { %struct.use_optype_d*, %struct.ssa_use_operand_d }
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%struct.var_refs_queue = type { %struct.rtx_def*, i32, i32, %struct.var_refs_queue* }
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%struct.varasm_status = type opaque
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%struct.vuse_optype_d = type { %struct.vuse_optype_d*, %struct.tree_node*, %struct.ssa_use_operand_d }
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@llvm.used = appending global [1 x i8*] [ i8* bitcast (%struct.edge_def* (%struct.edge_def*, %struct.basic_block_def*)* @tree_redirect_edge_and_branch to i8*) ], section "llvm.metadata" ; <[1 x i8*]*> [#uses=0]
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define %struct.edge_def* @tree_redirect_edge_and_branch(%struct.edge_def* %e1, %struct.basic_block_def* %dest2) nounwind {
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entry:
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br label %bb497
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bb483: ; preds = %bb497
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%tmp496 = load %struct.tree_node** null, align 4 ; <%struct.tree_node*> [#uses=1]
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br label %bb497
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bb497: ; preds = %bb483, %entry
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%cases.0 = phi %struct.tree_node* [ %tmp496, %bb483 ], [ null, %entry ] ; <%struct.tree_node*> [#uses=1]
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%last.0 = phi %struct.tree_node* [ %cases.0, %bb483 ], [ undef, %entry ] ; <%struct.tree_node*> [#uses=1]
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%foo = phi i1 [ 0, %bb483 ], [ 1, %entry ]
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br i1 %foo, label %bb483, label %bb502
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bb502: ; preds = %bb497
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br i1 %foo, label %bb507, label %bb841
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bb507: ; preds = %bb502
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%tmp517 = getelementptr %struct.tree_node* %last.0, i32 0, i32 0 ; <%struct.tree_function_decl*> [#uses=1]
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%tmp517518 = bitcast %struct.tree_function_decl* %tmp517 to %struct.tree_common* ; <%struct.tree_common*> [#uses=1]
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%tmp519 = getelementptr %struct.tree_common* %tmp517518, i32 0, i32 0 ; <%struct.tree_node**> [#uses=1]
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store %struct.tree_node* null, %struct.tree_node** %tmp519, align 4
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br label %bb841
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bb841: ; preds = %bb507, %bb502
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unreachable
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}
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