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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
72 lines
3.2 KiB
LLVM
72 lines
3.2 KiB
LLVM
; RUN: opt < %s -add-discriminators -S | FileCheck %s
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; We should not generate discriminators for DWARF versions prior to 4.
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;
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; Original code:
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;
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; int foo(long i) {
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; if (i < 5) return 2; else return 90;
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; }
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;
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; None of the !dbg nodes associated with the if() statement should be
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; altered. If they are, it means that the discriminators pass added a
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; new lexical scope.
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define i32 @foo(i64 %i) #0 {
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entry:
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%retval = alloca i32, align 4
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%i.addr = alloca i64, align 8
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store i64 %i, i64* %i.addr, align 8
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call void @llvm.dbg.declare(metadata i64* %i.addr, metadata !13, metadata !{}), !dbg !14
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%0 = load i64* %i.addr, align 8, !dbg !15
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; CHECK: %0 = load i64* %i.addr, align 8, !dbg !15
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%cmp = icmp slt i64 %0, 5, !dbg !15
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; CHECK: %cmp = icmp slt i64 %0, 5, !dbg !15
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br i1 %cmp, label %if.then, label %if.else, !dbg !15
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; CHECK: br i1 %cmp, label %if.then, label %if.else, !dbg !15
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if.then: ; preds = %entry
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store i32 2, i32* %retval, !dbg !15
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br label %return, !dbg !15
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if.else: ; preds = %entry
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store i32 90, i32* %retval, !dbg !15
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br label %return, !dbg !15
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return: ; preds = %if.else, %if.then
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%1 = load i32* %retval, !dbg !17
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ret i32 %1, !dbg !17
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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 uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!10, !11}
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!llvm.ident = !{!12}
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!0 = !{!"0x11\0012\00clang version 3.5.0 \000\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [./no-discriminators] [DW_LANG_C99]
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!1 = !{!"no-discriminators", !"."}
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!2 = !{}
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!3 = !{!4}
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!4 = !{!"0x2e\00foo\00foo\00\001\000\001\000\006\00256\000\001", !1, !5, !6, null, i32 (i64)* @foo, null, null, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
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!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [./no-discriminators]
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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 = !{!8, !9}
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!8 = !{!"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 = !{!"0x24\00long int\000\0064\0064\000\000\005", null, null} ; [ DW_TAG_base_type ] [long int] [line 0, size 64, align 64, offset 0, enc DW_ATE_signed]
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!10 = !{i32 2, !"Dwarf Version", i32 2}
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; CHECK: !10 = !{i32 2, !"Dwarf Version", i32 2}
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!11 = !{i32 1, !"Debug Info Version", i32 2}
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!12 = !{!"clang version 3.5.0 "}
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!13 = !{!"0x101\00i\0016777217\000", !4, !5, !9} ; [ DW_TAG_arg_variable ] [i] [line 1]
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!14 = !MDLocation(line: 1, scope: !4)
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!15 = !MDLocation(line: 2, scope: !16)
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; CHECK: !15 = !MDLocation(line: 2, scope: !16)
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!16 = !{!"0xb\002\000\000", !1, !4} ; [ DW_TAG_lexical_block ] [./no-discriminators]
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; CHECK: !16 = !{!"0xb\002\000\000", !1, !4} ; [ DW_TAG_lexical_block ] [./no-discriminators]
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!17 = !MDLocation(line: 3, scope: !4)
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