diff options
Diffstat (limited to 'test/CodeGen/X86/2010-02-12-CoalescerBug-Impdef.ll')
| -rw-r--r-- | test/CodeGen/X86/2010-02-12-CoalescerBug-Impdef.ll | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2010-02-12-CoalescerBug-Impdef.ll b/test/CodeGen/X86/2010-02-12-CoalescerBug-Impdef.ll new file mode 100644 index 0000000..c5d3d16 --- /dev/null +++ b/test/CodeGen/X86/2010-02-12-CoalescerBug-Impdef.ll @@ -0,0 +1,260 @@ +; RUN: llc < %s > %t +; PR6283 + +; Tricky coalescer bug: +; After coalescing %RAX with a virtual register, this instruction was rematted: +; +; %EAX<def> = MOV32rr %reg1070<kill> +; +; This instruction silently defined %RAX, and when rematting removed the +; instruction, the live interval for %RAX was not properly updated. The valno +; referred to a deleted instruction and bad things happened. +; +; The fix is to implicitly define %RAX when coalescing: +; +; %EAX<def> = MOV32rr %reg1070<kill>, %RAX<imp-def> +; + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" +target triple = "x86_64-unknown-linux-gnu" + +module asm "\09.ident\09\22GCC: (GNU) 4.5.0 20100212 (experimental) LLVM: 95975\22" + +%0 = type { %"union gimple_statement_d"* } +%"BITMAP_WORD[]" = type [2 x i64] +%"char[]" = type [4 x i8] +%"enum dom_state[]" = type [2 x i32] +%"int[]" = type [4 x i32] +%"struct VEC_basic_block_base" = type { i32, i32, [1 x %"struct basic_block_def"*] } +%"struct VEC_basic_block_gc" = type { %"struct VEC_basic_block_base" } +%"struct VEC_edge_base" = type { i32, i32, [1 x %"struct edge_def"*] } +%"struct VEC_edge_gc" = type { %"struct VEC_edge_base" } +%"struct VEC_gimple_base" = type { i32, i32, [1 x %"union gimple_statement_d"*] } +%"struct VEC_gimple_gc" = type { %"struct VEC_gimple_base" } +%"struct VEC_iv_cand_p_base" = type { i32, i32, [1 x %"struct iv_cand"*] } +%"struct VEC_iv_cand_p_heap" = type { %"struct VEC_iv_cand_p_base" } +%"struct VEC_iv_use_p_base" = type { i32, i32, [1 x %"struct iv_use"*] } +%"struct VEC_iv_use_p_heap" = type { %"struct VEC_iv_use_p_base" } +%"struct VEC_loop_p_base" = type { i32, i32, [1 x %"struct loop"*] } +%"struct VEC_loop_p_gc" = type { %"struct VEC_loop_p_base" } +%"struct VEC_rtx_base" = type { i32, i32, [1 x %"struct rtx_def"*] } +%"struct VEC_rtx_gc" = type { %"struct VEC_rtx_base" } +%"struct VEC_tree_base" = type { i32, i32, [1 x %"union tree_node"*] } +%"struct VEC_tree_gc" = type { %"struct VEC_tree_base" } +%"struct _obstack_chunk" = type { i8*, %"struct _obstack_chunk"*, %"char[]" } +%"struct basic_block_def" = type { %"struct VEC_edge_gc"*, %"struct VEC_edge_gc"*, i8*, %"struct loop"*, [2 x %"struct et_node"*], %"struct basic_block_def"*, %"struct basic_block_def"*, %"union basic_block_il_dependent", i64, i32, i32, i32, i32, i32 } +%"struct bitmap_element" = type { %"struct bitmap_element"*, %"struct bitmap_element"*, i32, %"BITMAP_WORD[]" } +%"struct bitmap_head_def" = type { %"struct bitmap_element"*, %"struct bitmap_element"*, i32, %"struct bitmap_obstack"* } +%"struct bitmap_obstack" = type { %"struct bitmap_element"*, %"struct bitmap_head_def"*, %"struct obstack" } +%"struct block_symbol" = type { [3 x %"union rtunion"], %"struct object_block"*, i64 } +%"struct comp_cost" = type { i32, i32 } +%"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, %"enum dom_state[]", %"enum dom_state[]", i32, i32 } +%"struct cost_pair" = type { %"struct iv_cand"*, %"struct comp_cost", %"struct bitmap_head_def"*, %"union tree_node"* } +%"struct def_optype_d" = type { %"struct def_optype_d"*, %"union tree_node"** } +%"struct double_int" = type { i64, i64 } +%"struct edge_def" = type { %"struct basic_block_def"*, %"struct basic_block_def"*, %"union edge_def_insns", i8*, %"union tree_node"*, i32, i32, i32, i32, i64 } +%"struct eh_status" = type opaque +%"struct et_node" = type opaque +%"struct function" = type { %"struct eh_status"*, %"struct control_flow_graph"*, %"struct gimple_seq_d"*, %"struct gimple_df"*, %"struct loops"*, %"struct htab"*, %"union tree_node"*, %"union tree_node"*, %"union tree_node"*, %"union tree_node"*, %"struct machine_function"*, %"struct language_function"*, %"struct htab"*, i32, i32, i32, i32, i32, i32, i8*, i8, i8, i8, i8 } +%"struct gimple_bb_info" = type { %"struct gimple_seq_d"*, %"struct gimple_seq_d"* } +%"struct gimple_df" = type { %"struct htab"*, %"struct VEC_gimple_gc"*, %"struct VEC_tree_gc"*, %"union tree_node"*, %"struct pt_solution", %"struct pt_solution", %"struct pointer_map_t"*, %"union tree_node"*, %"struct htab"*, %"struct bitmap_head_def"*, i8, %"struct ssa_operands" } +%"struct gimple_seq_d" = type { %"struct gimple_seq_node_d"*, %"struct gimple_seq_node_d"*, %"struct gimple_seq_d"* } +%"struct gimple_seq_node_d" = type { %"union gimple_statement_d"*, %"struct gimple_seq_node_d"*, %"struct gimple_seq_node_d"* } +%"struct gimple_statement_base" = type { i8, i8, i16, i32, i32, i32, %"struct basic_block_def"*, %"union tree_node"* } +%"struct gimple_statement_phi" = type { %"struct gimple_statement_base", i32, i32, %"union tree_node"*, %"struct phi_arg_d[]" } +%"struct htab" = type { i32 (i8*)*, i32 (i8*, i8*)*, void (i8*)*, i8**, i64, i64, i64, i32, i32, i8* (i64, i64)*, void (i8*)*, i8*, i8* (i8*, i64, i64)*, void (i8*, i8*)*, i32 } +%"struct iv" = type { %"union tree_node"*, %"union tree_node"*, %"union tree_node"*, %"union tree_node"*, i8, i8, i32 } +%"struct iv_cand" = type { i32, i8, i32, %"union gimple_statement_d"*, %"union tree_node"*, %"union tree_node"*, %"struct iv"*, i32, i32, %"struct iv_use"*, %"struct bitmap_head_def"* } +%"struct iv_use" = type { i32, i32, %"struct iv"*, %"union gimple_statement_d"*, %"union tree_node"**, %"struct bitmap_head_def"*, i32, %"struct cost_pair"*, %"struct iv_cand"* } +%"struct ivopts_data" = type { %"struct loop"*, %"struct pointer_map_t"*, i32, i32, %"struct version_info"*, %"struct bitmap_head_def"*, %"struct VEC_iv_use_p_heap"*, %"struct VEC_iv_cand_p_heap"*, %"struct bitmap_head_def"*, i32, i8, i8 } +%"struct lang_decl" = type opaque +%"struct language_function" = type opaque +%"struct loop" = type { i32, i32, %"struct basic_block_def"*, %"struct basic_block_def"*, %"struct comp_cost", i32, i32, %"struct VEC_loop_p_gc"*, %"struct loop"*, %"struct loop"*, i8*, %"union tree_node"*, %"struct double_int", %"struct double_int", i8, i8, i32, %"struct nb_iter_bound"*, %"struct loop_exit"*, i8, %"union tree_node"* } +%"struct loop_exit" = type { %"struct edge_def"*, %"struct loop_exit"*, %"struct loop_exit"*, %"struct loop_exit"* } +%"struct loops" = type { i32, %"struct VEC_loop_p_gc"*, %"struct htab"*, %"struct loop"* } +%"struct machine_cfa_state" = type { %"struct rtx_def"*, i64 } +%"struct machine_function" = type { %"struct stack_local_entry"*, i8*, i32, i32, %"int[]", i32, %"struct machine_cfa_state", i32, i8 } +%"struct nb_iter_bound" = type { %"union gimple_statement_d"*, %"struct double_int", i8, %"struct nb_iter_bound"* } +%"struct object_block" = type { %"union section"*, i32, i64, %"struct VEC_rtx_gc"*, %"struct VEC_rtx_gc"* } +%"struct obstack" = type { i64, %"struct _obstack_chunk"*, i8*, i8*, i8*, i64, i32, %"struct _obstack_chunk"* (i8*, i64)*, void (i8*, %"struct _obstack_chunk"*)*, i8*, i8 } +%"struct phi_arg_d" = type { %"struct ssa_use_operand_d", %"union tree_node"*, i32 } +%"struct phi_arg_d[]" = type [1 x %"struct phi_arg_d"] +%"struct pointer_map_t" = type opaque +%"struct pt_solution" = type { i8, %"struct bitmap_head_def"* } +%"struct rtx_def" = type { i16, i8, i8, %"union u" } +%"struct section_common" = type { i32 } +%"struct ssa_operand_memory_d" = type { %"struct ssa_operand_memory_d"*, %"uchar[]" } +%"struct ssa_operands" = type { %"struct ssa_operand_memory_d"*, i32, i32, i8, %"struct def_optype_d"*, %"struct use_optype_d"* } +%"struct ssa_use_operand_d" = type { %"struct ssa_use_operand_d"*, %"struct ssa_use_operand_d"*, %0, %"union tree_node"** } +%"struct stack_local_entry" = type opaque +%"struct tree_base" = type <{ i16, i8, i8, i8, [2 x i8], i8 }> +%"struct tree_common" = type { %"struct tree_base", %"union tree_node"*, %"union tree_node"* } +%"struct tree_decl_common" = type { %"struct tree_decl_minimal", %"union tree_node"*, i8, i8, i8, i8, i8, i32, %"union tree_node"*, %"union tree_node"*, %"union tree_node"*, %"union tree_node"*, %"struct lang_decl"* } +%"struct tree_decl_minimal" = type { %"struct tree_common", i32, i32, %"union tree_node"*, %"union tree_node"* } +%"struct tree_decl_non_common" = type { %"struct tree_decl_with_vis", %"union tree_node"*, %"union tree_node"*, %"union tree_node"*, %"union tree_node"* } +%"struct tree_decl_with_rtl" = type { %"struct tree_decl_common", %"struct rtx_def"* } +%"struct tree_decl_with_vis" = type { %"struct tree_decl_with_rtl", %"union tree_node"*, %"union tree_node"*, %"union tree_node"*, i8, i8, i8 } +%"struct tree_function_decl" = type { %"struct tree_decl_non_common", %"struct function"*, %"union tree_node"*, %"union tree_node"*, %"union tree_node"*, i16, i8, i8 } +%"struct unnamed_section" = type { %"struct section_common", void (i8*)*, i8*, %"union section"* } +%"struct use_optype_d" = type { %"struct use_optype_d"*, %"struct ssa_use_operand_d" } +%"struct version_info" = type { %"union tree_node"*, %"struct iv"*, i8, i32, i8 } +%"uchar[]" = type [1 x i8] +%"union basic_block_il_dependent" = type { %"struct gimple_bb_info"* } +%"union edge_def_insns" = type { %"struct gimple_seq_d"* } +%"union gimple_statement_d" = type { %"struct gimple_statement_phi" } +%"union rtunion" = type { i8* } +%"union section" = type { %"struct unnamed_section" } +%"union tree_node" = type { %"struct tree_function_decl" } +%"union u" = type { %"struct block_symbol" } + +declare fastcc %"union tree_node"* @get_computation_at(%"struct loop"*, %"struct iv_use"* nocapture, %"struct iv_cand"* nocapture, %"union gimple_statement_d"*) nounwind + +declare fastcc i32 @computation_cost(%"union tree_node"*, i8 zeroext) nounwind + +define fastcc i64 @get_computation_cost_at(%"struct ivopts_data"* %data, %"struct iv_use"* nocapture %use, %"struct iv_cand"* nocapture %cand, i8 zeroext %address_p, %"struct bitmap_head_def"** %depends_on, %"union gimple_statement_d"* %at, i8* %can_autoinc) nounwind { +entry: + br i1 undef, label %"100", label %"4" + +"4": ; preds = %entry + br i1 undef, label %"6", label %"5" + +"5": ; preds = %"4" + unreachable + +"6": ; preds = %"4" + br i1 undef, label %"8", label %"7" + +"7": ; preds = %"6" + unreachable + +"8": ; preds = %"6" + br i1 undef, label %"100", label %"10" + +"10": ; preds = %"8" + br i1 undef, label %"17", label %"16" + +"16": ; preds = %"10" + unreachable + +"17": ; preds = %"10" + br i1 undef, label %"19", label %"18" + +"18": ; preds = %"17" + unreachable + +"19": ; preds = %"17" + br i1 undef, label %"93", label %"20" + +"20": ; preds = %"19" + br i1 undef, label %"23", label %"21" + +"21": ; preds = %"20" + unreachable + +"23": ; preds = %"20" + br i1 undef, label %"100", label %"25" + +"25": ; preds = %"23" + br i1 undef, label %"100", label %"26" + +"26": ; preds = %"25" + br i1 undef, label %"30", label %"28" + +"28": ; preds = %"26" + unreachable + +"30": ; preds = %"26" + br i1 undef, label %"59", label %"51" + +"51": ; preds = %"30" + br i1 undef, label %"55", label %"52" + +"52": ; preds = %"51" + unreachable + +"55": ; preds = %"51" + %0 = icmp ugt i32 0, undef ; <i1> [#uses=1] + br i1 %0, label %"50.i", label %"9.i" + +"9.i": ; preds = %"55" + unreachable + +"50.i": ; preds = %"55" + br i1 undef, label %"55.i", label %"54.i" + +"54.i": ; preds = %"50.i" + br i1 undef, label %"57.i", label %"55.i" + +"55.i": ; preds = %"54.i", %"50.i" + unreachable + +"57.i": ; preds = %"54.i" + br label %"63.i" + +"61.i": ; preds = %"63.i" + br i1 undef, label %"64.i", label %"62.i" + +"62.i": ; preds = %"61.i" + br label %"63.i" + +"63.i": ; preds = %"62.i", %"57.i" + br i1 undef, label %"61.i", label %"64.i" + +"64.i": ; preds = %"63.i", %"61.i" + unreachable + +"59": ; preds = %"30" + br i1 undef, label %"60", label %"82" + +"60": ; preds = %"59" + br i1 undef, label %"61", label %"82" + +"61": ; preds = %"60" + br i1 undef, label %"62", label %"82" + +"62": ; preds = %"61" + br i1 undef, label %"100", label %"63" + +"63": ; preds = %"62" + br i1 undef, label %"65", label %"64" + +"64": ; preds = %"63" + unreachable + +"65": ; preds = %"63" + br i1 undef, label %"66", label %"67" + +"66": ; preds = %"65" + unreachable + +"67": ; preds = %"65" + %1 = load i32* undef, align 4 ; <i32> [#uses=0] + br label %"100" + +"82": ; preds = %"61", %"60", %"59" + unreachable + +"93": ; preds = %"19" + %2 = call fastcc %"union tree_node"* @get_computation_at(%"struct loop"* undef, %"struct iv_use"* %use, %"struct iv_cand"* %cand, %"union gimple_statement_d"* %at) nounwind ; <%"union tree_node"*> [#uses=1] + br i1 undef, label %"100", label %"97" + +"97": ; preds = %"93" + br i1 undef, label %"99", label %"98" + +"98": ; preds = %"97" + br label %"99" + +"99": ; preds = %"98", %"97" + %3 = phi %"union tree_node"* [ undef, %"98" ], [ %2, %"97" ] ; <%"union tree_node"*> [#uses=1] + %4 = call fastcc i32 @computation_cost(%"union tree_node"* %3, i8 zeroext undef) nounwind ; <i32> [#uses=1] + br label %"100" + +"100": ; preds = %"99", %"93", %"67", %"62", %"25", %"23", %"8", %entry + %memtmp1.1.0 = phi i32 [ 0, %"99" ], [ 10000000, %entry ], [ 10000000, %"8" ], [ 10000000, %"23" ], [ 10000000, %"25" ], [ undef, %"62" ], [ undef, %"67" ], [ 10000000, %"93" ] ; <i32> [#uses=1] + %memtmp1.0.0 = phi i32 [ %4, %"99" ], [ 10000000, %entry ], [ 10000000, %"8" ], [ 10000000, %"23" ], [ 10000000, %"25" ], [ undef, %"62" ], [ undef, %"67" ], [ 10000000, %"93" ] ; <i32> [#uses=1] + %5 = zext i32 %memtmp1.0.0 to i64 ; <i64> [#uses=1] + %6 = zext i32 %memtmp1.1.0 to i64 ; <i64> [#uses=1] + %7 = shl i64 %6, 32 ; <i64> [#uses=1] + %8 = or i64 %7, %5 ; <i64> [#uses=1] + ret i64 %8 +} |