mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-25 14:30:32 +00:00
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
276 lines
13 KiB
LLVM
276 lines
13 KiB
LLVM
; REQUIRES: object-emission
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; RUN: %llc_dwarf -filetype=obj -O0 < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
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; This isn't a very pretty test case - I imagine there might be other ways to
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; tickle the optimizers into producing the desired code, but I haven't found
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; them.
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; The issue is when a function is inlined into itself, the inlined argument
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; accidentally overwrote the concrete argument and was lost.
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; IR generated from the following source compiled with clang -g:
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; void fn1(void *);
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; void fn2(int, int, int, int);
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; void fn3();
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; void fn8();
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; struct C {
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; int b;
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; void m_fn2() {
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; fn8();
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; if (b) fn2(0, 0, 0, 0);
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; fn3();
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; }
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; };
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; C *x;
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; inline void fn7() {}
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; void fn6() {
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; fn8();
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; x->m_fn2();
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; fn7();
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; }
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; void fn3() { fn6(); }
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; void fn4() { x->m_fn2(); }
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; void fn5() { x->m_fn2(); }
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; The definition of C and declaration of C::m_fn2
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; CHECK: DW_TAG_structure_type
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; CHECK-NOT: {{DW_TAG|NULL}}
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; CHECK: DW_TAG_member
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; CHECK-NOT: {{DW_TAG|NULL}}
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; CHECK: DW_TAG_subprogram
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_name {{.*}} "m_fn2"
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; CHECK-NOT: {{DW_TAG|NULL}}
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; CHECK: [[M_FN2_THIS_DECL:.*]]: DW_TAG_formal_parameter
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; The abstract definition of C::m_fn2
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; CHECK: [[M_FN2_ABS_DEF:.*]]: DW_TAG_subprogram
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_specification {{.*}} "_ZN1C5m_fn2Ev"
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_inline
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; CHECK-NOT: {{DW_TAG|NULL}}
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; CHECK: [[M_FN2_THIS_ABS_DEF:.*]]: DW_TAG_formal_parameter
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_name {{.*}} "this"
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; Skip some other functions
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; CHECK: DW_TAG_subprogram
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; CHECK: DW_TAG_subprogram
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; CHECK: DW_TAG_subprogram
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; The concrete definition of C::m_fn2
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; CHECK: DW_TAG_subprogram
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_abstract_origin {{.*}} {[[M_FN2_ABS_DEF]]} "_ZN1C5m_fn2Ev"
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; CHECK-NOT: {{DW_TAG|NULL}}
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; CHECK: DW_TAG_formal_parameter
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_abstract_origin {{.*}} {[[M_FN2_THIS_ABS_DEF]]}
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; CHECK-NOT: {{DW_TAG|NULL}}
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; Inlined fn3:
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; CHECK: DW_TAG_inlined_subroutine
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; CHECK-NOT: {{DW_TAG|NULL}}
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; Inlined fn6:
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; CHECK: DW_TAG_inlined_subroutine
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; CHECK-NOT: {{DW_TAG|NULL}}
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; Inlined C::m_fn2:
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; CHECK: DW_TAG_inlined_subroutine
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_abstract_origin {{.*}} {[[M_FN2_ABS_DEF]]} "_ZN1C5m_fn2Ev"
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; CHECK-NOT: {{DW_TAG|NULL}}
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; CHECK: DW_TAG_formal_parameter
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_abstract_origin {{.*}} {[[M_FN2_THIS_ABS_DEF]]}
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%struct.C = type { i32 }
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@x = global %struct.C* null, align 8
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; Function Attrs: nounwind
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define void @_Z3fn6v() #0 {
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entry:
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tail call void @_Z3fn8v() #3, !dbg !31
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%0 = load %struct.C** @x, align 8, !dbg !32, !tbaa !33
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tail call void @llvm.dbg.value(metadata %struct.C* %0, i64 0, metadata !37, metadata !{!"0x102"}) #3, !dbg !38
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tail call void @_Z3fn8v() #3, !dbg !39
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%b.i = getelementptr inbounds %struct.C* %0, i64 0, i32 0, !dbg !40
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%1 = load i32* %b.i, align 4, !dbg !40, !tbaa !42
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%tobool.i = icmp eq i32 %1, 0, !dbg !40
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br i1 %tobool.i, label %_ZN1C5m_fn2Ev.exit, label %if.then.i, !dbg !40
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if.then.i: ; preds = %entry
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tail call void @_Z3fn2iiii(i32 0, i32 0, i32 0, i32 0) #3, !dbg !45
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br label %_ZN1C5m_fn2Ev.exit, !dbg !45
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_ZN1C5m_fn2Ev.exit: ; preds = %entry, %if.then.i
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tail call void @_Z3fn3v() #3, !dbg !47
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ret void, !dbg !48
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}
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declare void @_Z3fn8v() #1
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; Function Attrs: nounwind
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define linkonce_odr void @_ZN1C5m_fn2Ev(%struct.C* nocapture readonly %this) #0 align 2 {
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entry:
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tail call void @llvm.dbg.value(metadata %struct.C* %this, i64 0, metadata !24, metadata !{!"0x102"}), !dbg !49
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tail call void @_Z3fn8v() #3, !dbg !50
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%b = getelementptr inbounds %struct.C* %this, i64 0, i32 0, !dbg !51
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%0 = load i32* %b, align 4, !dbg !51, !tbaa !42
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%tobool = icmp eq i32 %0, 0, !dbg !51
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br i1 %tobool, label %if.end, label %if.then, !dbg !51
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if.then: ; preds = %entry
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tail call void @_Z3fn2iiii(i32 0, i32 0, i32 0, i32 0) #3, !dbg !52
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br label %if.end, !dbg !52
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if.end: ; preds = %entry, %if.then
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tail call void @_Z3fn8v() #3, !dbg !53
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%1 = load %struct.C** @x, align 8, !dbg !56, !tbaa !33
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tail call void @llvm.dbg.value(metadata %struct.C* %1, i64 0, metadata !57, metadata !{!"0x102"}) #3, !dbg !58
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tail call void @_Z3fn8v() #3, !dbg !59
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%b.i.i = getelementptr inbounds %struct.C* %1, i64 0, i32 0, !dbg !60
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%2 = load i32* %b.i.i, align 4, !dbg !60, !tbaa !42
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%tobool.i.i = icmp eq i32 %2, 0, !dbg !60
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br i1 %tobool.i.i, label %_Z3fn6v.exit, label %if.then.i.i, !dbg !60
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if.then.i.i: ; preds = %if.end
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tail call void @_Z3fn2iiii(i32 0, i32 0, i32 0, i32 0) #3, !dbg !61
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br label %_Z3fn6v.exit, !dbg !61
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_Z3fn6v.exit: ; preds = %if.end, %if.then.i.i
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tail call void @_Z3fn3v() #3, !dbg !62
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ret void, !dbg !63
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}
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; Function Attrs: nounwind
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define void @_Z3fn3v() #0 {
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entry:
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br label %tailrecurse
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tailrecurse: ; preds = %tailrecurse.backedge, %entry
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tail call void @_Z3fn8v() #3, !dbg !64
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%0 = load %struct.C** @x, align 8, !dbg !66, !tbaa !33
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tail call void @llvm.dbg.value(metadata %struct.C* %0, i64 0, metadata !67, metadata !{!"0x102"}) #3, !dbg !68
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tail call void @_Z3fn8v() #3, !dbg !69
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%b.i.i = getelementptr inbounds %struct.C* %0, i64 0, i32 0, !dbg !70
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%1 = load i32* %b.i.i, align 4, !dbg !70, !tbaa !42
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%tobool.i.i = icmp eq i32 %1, 0, !dbg !70
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br i1 %tobool.i.i, label %tailrecurse.backedge, label %if.then.i.i, !dbg !70
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tailrecurse.backedge: ; preds = %tailrecurse, %if.then.i.i
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br label %tailrecurse
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if.then.i.i: ; preds = %tailrecurse
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tail call void @_Z3fn2iiii(i32 0, i32 0, i32 0, i32 0) #3, !dbg !71
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br label %tailrecurse.backedge, !dbg !71
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}
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; Function Attrs: nounwind
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define void @_Z3fn4v() #0 {
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entry:
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%0 = load %struct.C** @x, align 8, !dbg !72, !tbaa !33
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tail call void @_ZN1C5m_fn2Ev(%struct.C* %0), !dbg !72
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ret void, !dbg !72
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}
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; Function Attrs: nounwind
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define void @_Z3fn5v() #0 {
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entry:
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%0 = load %struct.C** @x, align 8, !dbg !73, !tbaa !33
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tail call void @_ZN1C5m_fn2Ev(%struct.C* %0), !dbg !73
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ret void, !dbg !73
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}
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declare void @_Z3fn2iiii(i32, i32, i32, i32) #1
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2
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attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { nounwind readnone }
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attributes #3 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!28, !29}
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!llvm.ident = !{!30}
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!0 = !{!"0x11\004\00clang version 3.6.0 \001\00\000\00\001", !1, !2, !3, !13, !26, !2} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/blaikie/dev/scratch/missing_concrete_variable_on_darwin/reduce/<stdin>] [DW_LANG_C_plus_plus]
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!1 = !{!"<stdin>", !"/usr/local/google/home/blaikie/dev/scratch/missing_concrete_variable_on_darwin/reduce"}
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!2 = !{}
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!3 = !{!4}
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!4 = !{!"0x13\00C\005\0032\0032\000\000\000", !5, null, null, !6, null, null, !"_ZTS1C"} ; [ DW_TAG_structure_type ] [C] [line 5, size 32, align 32, offset 0] [def] [from ]
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!5 = !{!"recursive_inlining.cpp", !"/usr/local/google/home/blaikie/dev/scratch/missing_concrete_variable_on_darwin/reduce"}
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!6 = !{!7, !9}
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!7 = !{!"0xd\00b\006\0032\0032\000\000", !5, !"_ZTS1C", !8} ; [ DW_TAG_member ] [b] [line 6, size 32, align 32, offset 0] [from int]
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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 = !{!"0x2e\00m_fn2\00m_fn2\00_ZN1C5m_fn2Ev\007\000\000\000\006\00256\001\007", !5, !"_ZTS1C", !10, null, null, null, i32 0, null} ; [ DW_TAG_subprogram ] [line 7] [m_fn2]
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!10 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !11, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!11 = !{null, !12}
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!12 = !{!"0xf\00\000\0064\0064\000\001088", null, null, !"_ZTS1C"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1C]
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!13 = !{!14, !18, !19, !20, !21, !22}
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!14 = !{!"0x2e\00fn6\00fn6\00_Z3fn6v\0015\000\001\000\006\00256\001\0015", !5, !15, !16, null, void ()* @_Z3fn6v, null, null, !2} ; [ DW_TAG_subprogram ] [line 15] [def] [fn6]
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!15 = !{!"0x29", !5} ; [ DW_TAG_file_type ] [/usr/local/google/home/blaikie/dev/scratch/missing_concrete_variable_on_darwin/reduce/recursive_inlining.cpp]
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!16 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !17, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!17 = !{null}
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!18 = !{!"0x2e\00fn3\00fn3\00_Z3fn3v\0020\000\001\000\006\00256\001\0020", !5, !15, !16, null, void ()* @_Z3fn3v, null, null, !2} ; [ DW_TAG_subprogram ] [line 20] [def] [fn3]
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!19 = !{!"0x2e\00fn4\00fn4\00_Z3fn4v\0021\000\001\000\006\00256\001\0021", !5, !15, !16, null, void ()* @_Z3fn4v, null, null, !2} ; [ DW_TAG_subprogram ] [line 21] [def] [fn4]
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!20 = !{!"0x2e\00fn5\00fn5\00_Z3fn5v\0022\000\001\000\006\00256\001\0022", !5, !15, !16, null, void ()* @_Z3fn5v, null, null, !2} ; [ DW_TAG_subprogram ] [line 22] [def] [fn5]
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!21 = !{!"0x2e\00fn7\00fn7\00_Z3fn7v\0014\000\001\000\006\00256\001\0014", !5, !15, !16, null, null, null, null, !2} ; [ DW_TAG_subprogram ] [line 14] [def] [fn7]
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!22 = !{!"0x2e\00m_fn2\00m_fn2\00_ZN1C5m_fn2Ev\007\000\001\000\006\00256\001\007", !5, !"_ZTS1C", !10, null, void (%struct.C*)* @_ZN1C5m_fn2Ev, null, !9, !23} ; [ DW_TAG_subprogram ] [line 7] [def] [m_fn2]
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!23 = !{!24}
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!24 = !{!"0x101\00this\0016777216\001088", !22, null, !25} ; [ DW_TAG_arg_variable ] [this] [line 0]
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!25 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS1C"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1C]
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!26 = !{!27}
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!27 = !{!"0x34\00x\00x\00\0013\000\001", null, !15, !25, %struct.C** @x, null} ; [ DW_TAG_variable ] [x] [line 13] [def]
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!28 = !{i32 2, !"Dwarf Version", i32 4}
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!29 = !{i32 2, !"Debug Info Version", i32 2}
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!30 = !{!"clang version 3.6.0 "}
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!31 = !MDLocation(line: 16, scope: !14)
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!32 = !MDLocation(line: 17, scope: !14)
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!33 = !{!34, !34, i64 0}
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!34 = !{!"any pointer", !35, i64 0}
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!35 = !{!"omnipotent char", !36, i64 0}
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!36 = !{!"Simple C/C++ TBAA"}
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!37 = !{!"0x101\00this\0016777216\001088", !22, null, !25, !32} ; [ DW_TAG_arg_variable ] [this] [line 0]
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!38 = !MDLocation(line: 0, scope: !22, inlinedAt: !32)
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!39 = !MDLocation(line: 8, scope: !22, inlinedAt: !32)
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!40 = !MDLocation(line: 9, scope: !41, inlinedAt: !32)
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!41 = !{!"0xb\009\000\000", !5, !22} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/blaikie/dev/scratch/missing_concrete_variable_on_darwin/reduce/recursive_inlining.cpp]
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!42 = !{!43, !44, i64 0}
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!43 = !{!"_ZTS1C", !44, i64 0}
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!44 = !{!"int", !35, i64 0}
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!45 = !MDLocation(line: 9, scope: !46, inlinedAt: !32)
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!46 = !{!"0xb\009\000\001", !5, !41} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/blaikie/dev/scratch/missing_concrete_variable_on_darwin/reduce/recursive_inlining.cpp]
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!47 = !MDLocation(line: 10, scope: !22, inlinedAt: !32)
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!48 = !MDLocation(line: 19, scope: !14)
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!49 = !MDLocation(line: 0, scope: !22)
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!50 = !MDLocation(line: 8, scope: !22)
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!51 = !MDLocation(line: 9, scope: !41)
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!52 = !MDLocation(line: 9, scope: !46)
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!53 = !MDLocation(line: 16, scope: !14, inlinedAt: !54)
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!54 = !MDLocation(line: 20, scope: !18, inlinedAt: !55)
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!55 = !MDLocation(line: 10, scope: !22)
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!56 = !MDLocation(line: 17, scope: !14, inlinedAt: !54)
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!57 = !{!"0x101\00this\0016777216\001088", !22, null, !25, !56} ; [ DW_TAG_arg_variable ] [this] [line 0]
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!58 = !MDLocation(line: 0, scope: !22, inlinedAt: !56)
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!59 = !MDLocation(line: 8, scope: !22, inlinedAt: !56)
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!60 = !MDLocation(line: 9, scope: !41, inlinedAt: !56)
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!61 = !MDLocation(line: 9, scope: !46, inlinedAt: !56)
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!62 = !MDLocation(line: 10, scope: !22, inlinedAt: !56)
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!63 = !MDLocation(line: 11, scope: !22)
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!64 = !MDLocation(line: 16, scope: !14, inlinedAt: !65)
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!65 = !MDLocation(line: 20, scope: !18)
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!66 = !MDLocation(line: 17, scope: !14, inlinedAt: !65)
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!67 = !{!"0x101\00this\0016777216\001088", !22, null, !25, !66} ; [ DW_TAG_arg_variable ] [this] [line 0]
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!68 = !MDLocation(line: 0, scope: !22, inlinedAt: !66)
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!69 = !MDLocation(line: 8, scope: !22, inlinedAt: !66)
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!70 = !MDLocation(line: 9, scope: !41, inlinedAt: !66)
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!71 = !MDLocation(line: 9, scope: !46, inlinedAt: !66)
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!72 = !MDLocation(line: 21, scope: !19)
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!73 = !MDLocation(line: 22, scope: !20)
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