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c1be4794ba
This reverts commit r218918, effectively reapplying r218914 after fixing an Ocaml bindings test and an Asan crash. The root cause of the latter was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a PR to investigate who requires the loose check (and why). Original commit message follows. -- This patch addresses the first stage of PR17891 by folding constant arguments together into a single MDString. Integers are stringified and a `\0` character is used as a separator. Part of PR17891. Note: I've attached my testcases upgrade scripts to the PR. If I've just broken your out-of-tree testcases, they might help. llvm-svn: 219010
71 lines
3.7 KiB
LLVM
71 lines
3.7 KiB
LLVM
; A by-value struct is a register-indirect value (breg).
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; RUN: llc %s -filetype=asm -o - | FileCheck %s
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; CHECK: DW_AT_location
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; CHECK-NEXT: .byte 112
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; 112 = 0x70 = DW_OP_breg0
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; rdar://problem/13658587
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;
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; Generated from
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;
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; struct five
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; {
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; int a;
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; int b;
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; int c;
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; int d;
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; int e;
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; };
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;
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; int
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; return_five_int (struct five f)
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; {
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; return f.a;
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; }
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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-n32:64-S128"
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target triple = "arm64-apple-ios3.0.0"
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%struct.five = type { i32, i32, i32, i32, i32 }
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; Function Attrs: nounwind ssp
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define i32 @return_five_int(%struct.five* %f) #0 {
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entry:
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call void @llvm.dbg.declare(metadata !{%struct.five* %f}, metadata !17, metadata !{metadata !"0x102"}), !dbg !18
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%a = getelementptr inbounds %struct.five* %f, i32 0, i32 0, !dbg !19
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%0 = load i32* %a, align 4, !dbg !19
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ret i32 %0, !dbg !19
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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attributes #0 = { nounwind ssp }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!16, !20}
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!0 = metadata !{metadata !"0x11\0012\00LLVM version 3.4 \000\00\000\00\000", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [struct_by_value.c] [DW_LANG_C99]
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!1 = metadata !{metadata !"struct_by_value.c", metadata !""}
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!2 = metadata !{}
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!3 = metadata !{metadata !4}
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!4 = metadata !{metadata !"0x2e\00return_five_int\00return_five_int\00\0013\000\001\000\006\00256\000\0014", metadata !1, metadata !5, metadata !6, null, i32 (%struct.five*)* @return_five_int, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 13] [def] [scope 14] [return_five_int]
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!5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [struct_by_value.c]
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!6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = metadata !{metadata !8, metadata !9}
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!8 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
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!9 = metadata !{metadata !"0x13\00five\001\00160\0032\000\000\000", metadata !1, null, null, metadata !10, null, null, null} ; [ DW_TAG_structure_type ] [five] [line 1, size 160, align 32, offset 0] [def] [from ]
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!10 = metadata !{metadata !11, metadata !12, metadata !13, metadata !14, metadata !15}
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!11 = metadata !{metadata !"0xd\00a\003\0032\0032\000\000", metadata !1, metadata !9, metadata !8} ; [ DW_TAG_member ] [a] [line 3, size 32, align 32, offset 0] [from int]
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!12 = metadata !{metadata !"0xd\00b\004\0032\0032\0032\000", metadata !1, metadata !9, metadata !8} ; [ DW_TAG_member ] [b] [line 4, size 32, align 32, offset 32] [from int]
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!13 = metadata !{metadata !"0xd\00c\005\0032\0032\0064\000", metadata !1, metadata !9, metadata !8} ; [ DW_TAG_member ] [c] [line 5, size 32, align 32, offset 64] [from int]
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!14 = metadata !{metadata !"0xd\00d\006\0032\0032\0096\000", metadata !1, metadata !9, metadata !8} ; [ DW_TAG_member ] [d] [line 6, size 32, align 32, offset 96] [from int]
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!15 = metadata !{metadata !"0xd\00e\007\0032\0032\00128\000", metadata !1, metadata !9, metadata !8} ; [ DW_TAG_member ] [e] [line 7, size 32, align 32, offset 128] [from int]
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!16 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
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!17 = metadata !{metadata !"0x101\00f\0016777229\008192", metadata !4, metadata !5, metadata !9} ; [ DW_TAG_arg_variable ] [f] [line 13]
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!18 = metadata !{i32 13, i32 0, metadata !4, null}
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!19 = metadata !{i32 16, i32 0, metadata !4, null}
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!20 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
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