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254d093f99
A further step to correctly emitting concrete out of line definitions preceeding inlined instances of the same program. To do this, emission of subprograms must be delayed until required since we don't know which (abstract only (if there's no out of line definition), concrete only (if there are no inlined instances), or both) DIEs are required at the start of the module. To reduce the test churn in the following commit that actually fixes the bug, this commit introduces the lazy DIE construction and cleans up test cases that are impacted by the changes in the resulting DIE ordering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209675 91177308-0d34-0410-b5e6-96231b3b80d8
78 lines
4.4 KiB
LLVM
78 lines
4.4 KiB
LLVM
; RUN: llc -mtriple=x86_64-linux-gnu -fast-isel=false -filetype=obj < %s -o - | llvm-dwarfdump -debug-dump=info - | FileCheck %s
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; RUN: llc -mtriple=x86_64-linux-gnu -fast-isel=false -filetype=asm < %s -o - | FileCheck --check-prefix=ASM %s
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; Generated from:
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; clang-tot -c -S -emit-llvm -g inline-seldag-test.c
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; inline int __attribute__((always_inline)) f(int y) {
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; return y ? 4 : 7;
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; }
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; void func() {
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; volatile int x;
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; x = f(x);
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; }
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; CHECK: [[F:.*]]: DW_TAG_subprogram
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_name {{.*}} "f"
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; CHECK: DW_TAG_inlined_subroutine
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; CHECK-NEXT: DW_AT_abstract_origin {{.*}} {[[F]]}
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; Make sure the condition test is attributed to the inline function, not the
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; location of the test's operands within the caller.
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; ASM: # inline-seldag-test.c:2:0
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; ASM-NOT: .loc
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; ASM: testl
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; Function Attrs: nounwind uwtable
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define void @func() #0 {
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entry:
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%y.addr.i = alloca i32, align 4
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%x = alloca i32, align 4
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call void @llvm.dbg.declare(metadata !{i32* %x}, metadata !15), !dbg !17
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%0 = load volatile i32* %x, align 4, !dbg !18
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store i32 %0, i32* %y.addr.i, align 4
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call void @llvm.dbg.declare(metadata !{i32* %y.addr.i}, metadata !19), !dbg !20
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%1 = load i32* %y.addr.i, align 4, !dbg !21
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%tobool.i = icmp ne i32 %1, 0, !dbg !21
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%cond.i = select i1 %tobool.i, i32 4, i32 7, !dbg !21
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store volatile i32 %cond.i, i32* %x, align 4, !dbg !18
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ret void, !dbg !22
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(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 = !{!12, !13}
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!llvm.ident = !{!14}
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!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5.0 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/inline-seldag-test.c] [DW_LANG_C99]
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!1 = metadata !{metadata !"inline-seldag-test.c", metadata !"/tmp/dbginfo"}
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!2 = metadata !{}
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!3 = metadata !{metadata !4, metadata !8}
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!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"func", metadata !"func", metadata !"", i32 4, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, void ()* @func, null, null, metadata !2, i32 4} ; [ DW_TAG_subprogram ] [line 4] [def] [func]
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!5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/inline-seldag-test.c]
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!6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = metadata !{null}
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!8 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"f", metadata !"f", metadata !"", i32 1, metadata !9, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, null, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [f]
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!9 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !10, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!10 = metadata !{metadata !11, metadata !11}
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!11 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
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!12 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
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!13 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
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!14 = metadata !{metadata !"clang version 3.5.0 "}
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!15 = metadata !{i32 786688, metadata !4, metadata !"x", metadata !5, i32 5, metadata !16, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [x] [line 5]
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!16 = metadata !{i32 786485, null, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, metadata !11} ; [ DW_TAG_volatile_type ] [line 0, size 0, align 0, offset 0] [from int]
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!17 = metadata !{i32 5, i32 0, metadata !4, null}
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!18 = metadata !{i32 6, i32 7, metadata !4, null}
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!19 = metadata !{i32 786689, metadata !8, metadata !"y", metadata !5, i32 16777217, metadata !11, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [y] [line 1]
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!20 = metadata !{i32 1, i32 0, metadata !8, metadata !18}
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!21 = metadata !{i32 2, i32 0, metadata !8, metadata !18}
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!22 = metadata !{i32 7, i32 0, metadata !4, null}
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