mirror of
https://github.com/c64scene-ar/llvm-6502.git
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37ac8d3622
This commit moves `MDLocation`, finishing off PR21433. There's an
accompanying clang commit for frontend testcases. I'll attach the
testcase upgrade script I used to PR21433 to help out-of-tree
frontends/backends.
This changes the schema for `DebugLoc` and `DILocation` from:
!{i32 3, i32 7, !7, !8}
to:
!MDLocation(line: 3, column: 7, scope: !7, inlinedAt: !8)
Note that empty fields (line/column: 0 and inlinedAt: null) don't get
printed by the assembly writer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226048 91177308-0d34-0410-b5e6-96231b3b80d8
118 lines
5.0 KiB
LLVM
118 lines
5.0 KiB
LLVM
; RUN: llc -mtriple=x86_64-apple-darwin %s -o %t.o -filetype=obj -O0
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; RUN: llvm-dwarfdump %t.o | FileCheck %s
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;
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; Test that on x86_64, the 32-bit subregister esi is emitted as
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; DW_OP_piece 32 of the 64-bit rsi.
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;
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; rdar://problem/16015314
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;
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; CHECK: DW_AT_location [DW_FORM_block1] (<0x03> 54 93 04 )
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; CHECK: DW_AT_name [DW_FORM_strp]{{.*}} "a"
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;
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; struct bar {
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; int a;
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; int b;
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; };
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;
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; void doSomething() __attribute__ ((noinline));
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;
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; void doSomething(struct bar *b)
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; {
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; int a = b->a;
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; printf("%d\n", a); // set breakpoint here
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; }
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;
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; int main()
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; {
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; struct bar myBar = { 3, 4 };
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; doSomething(&myBar);
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; return 0;
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; }
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.9.0"
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%struct.bar = type { i32, i32 }
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@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
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@main.myBar = private unnamed_addr constant %struct.bar { i32 3, i32 4 }, align 4
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; Function Attrs: noinline nounwind ssp uwtable
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define void @doSomething(%struct.bar* nocapture readonly %b) #0 {
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entry:
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tail call void @llvm.dbg.value(metadata %struct.bar* %b, i64 0, metadata !15, metadata !{!"0x102"}), !dbg !25
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%a1 = getelementptr inbounds %struct.bar* %b, i64 0, i32 0, !dbg !26
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%0 = load i32* %a1, align 4, !dbg !26, !tbaa !27
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tail call void @llvm.dbg.value(metadata i32 %0, i64 0, metadata !16, metadata !{!"0x102"}), !dbg !26
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%call = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), i32 %0) #4, !dbg !32
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ret void, !dbg !33
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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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; Function Attrs: nounwind
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declare i32 @printf(i8* nocapture readonly, ...) #2
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; Function Attrs: nounwind ssp uwtable
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define i32 @main() #3 {
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entry:
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%myBar = alloca i64, align 8, !dbg !34
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%tmpcast = bitcast i64* %myBar to %struct.bar*, !dbg !34
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tail call void @llvm.dbg.declare(metadata %struct.bar* %tmpcast, metadata !21, metadata !{!"0x102"}), !dbg !34
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store i64 17179869187, i64* %myBar, align 8, !dbg !34
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call void @doSomething(%struct.bar* %tmpcast), !dbg !35
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ret i32 0, !dbg !36
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
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attributes #0 = { noinline nounwind ssp uwtable }
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attributes #1 = { nounwind readnone }
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attributes #2 = { nounwind }
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attributes #3 = { nounwind ssp uwtable }
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attributes #4 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!22, !23}
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!llvm.ident = !{!24}
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!0 = !{!"0x11\0012\00clang version 3.5 \001\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [subregisters.c] [DW_LANG_C99]
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!1 = !{!"subregisters.c", !""}
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!2 = !{}
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!3 = !{!4, !17}
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!4 = !{!"0x2e\00doSomething\00doSomething\00\0010\000\001\000\006\00256\001\0011", !1, !5, !6, null, void (%struct.bar*)* @doSomething, null, null, !14} ; [ DW_TAG_subprogram ] [line 10] [def] [scope 11] [doSomething]
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!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [subregisters.c]
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!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = !{null, !8}
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!8 = !{!"0xf\00\000\0064\0064\000\000", null, null, !9} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from bar]
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!9 = !{!"0x13\00bar\003\0064\0032\000\000\000", !1, null, null, !10, null, null, null} ; [ DW_TAG_structure_type ] [bar] [line 3, size 64, align 32, offset 0] [def] [from ]
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!10 = !{!11, !13}
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!11 = !{!"0xd\00a\004\0032\0032\000\000", !1, !9, !12} ; [ DW_TAG_member ] [a] [line 4, size 32, align 32, offset 0] [from int]
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!12 = !{!"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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!13 = !{!"0xd\00b\005\0032\0032\0032\000", !1, !9, !12} ; [ DW_TAG_member ] [b] [line 5, size 32, align 32, offset 32] [from int]
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!14 = !{!15, !16}
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!15 = !{!"0x101\00b\0016777226\000", !4, !5, !8} ; [ DW_TAG_arg_variable ] [b] [line 10]
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!16 = !{!"0x100\00a\0012\000", !4, !5, !12} ; [ DW_TAG_auto_variable ] [a] [line 12]
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!17 = !{!"0x2e\00main\00main\00\0016\000\001\000\006\000\001\0017", !1, !5, !18, null, i32 ()* @main, null, null, !20} ; [ DW_TAG_subprogram ] [line 16] [def] [scope 17] [main]
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!18 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !19, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!19 = !{!12}
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!20 = !{!21}
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!21 = !{!"0x100\00myBar\0018\000", !17, !5, !9} ; [ DW_TAG_auto_variable ] [myBar] [line 18]
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!22 = !{i32 2, !"Dwarf Version", i32 2}
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!23 = !{i32 1, !"Debug Info Version", i32 2}
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!24 = !{!"clang version 3.5 "}
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!25 = !MDLocation(line: 10, scope: !4)
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!26 = !MDLocation(line: 12, scope: !4)
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!27 = !{!28, !29, i64 0}
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!28 = !{!"bar", !29, i64 0, !29, i64 4}
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!29 = !{!"int", !30, i64 0}
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!30 = !{!"omnipotent char", !31, i64 0}
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!31 = !{!"Simple C/C++ TBAA"}
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!32 = !MDLocation(line: 13, scope: !4)
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!33 = !MDLocation(line: 14, scope: !4)
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!34 = !MDLocation(line: 18, scope: !17)
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!35 = !MDLocation(line: 19, scope: !17)
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!36 = !MDLocation(line: 20, scope: !17)
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