[llvm] r235149 - DebugInfo: Simplify testcase from LiveDebugVariables fix in r235140
Duncan P. N. Exon Smith
dexonsmith at apple.com
Thu Apr 16 17:18:46 PDT 2015
Author: dexonsmith
Date: Thu Apr 16 19:18:46 2015
New Revision: 235149
URL: http://llvm.org/viewvc/llvm-project?rev=235149&view=rev
Log:
DebugInfo: Simplify testcase from LiveDebugVariables fix in r235140
This testcase is less brittle and exactly tests for the misbehaviour.
Thanks to David Blaikie for the suggestion.
Modified:
llvm/trunk/test/DebugInfo/X86/inlined-formal-parameter.ll
Modified: llvm/trunk/test/DebugInfo/X86/inlined-formal-parameter.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/inlined-formal-parameter.ll?rev=235149&r1=235148&r2=235149&view=diff
==============================================================================
--- llvm/trunk/test/DebugInfo/X86/inlined-formal-parameter.ll (original)
+++ llvm/trunk/test/DebugInfo/X86/inlined-formal-parameter.ll Thu Apr 16 19:18:46 2015
@@ -1,105 +1,75 @@
; RUN: llc -filetype=obj -o %t.o %s
; RUN: llvm-dwarfdump -debug-dump=info %t.o | FileCheck %s
-; Testcase generated using 'clang -O2 -S -emit-llvm' from the following:
-;; int *g;
-;;
-;; static __attribute__((always_inline)) int f(int a) {
-;; int l;
-;; g = &l;
-;; return a;
+; Testcase generated using 'clang -g -O2 -S -emit-llvm' from the following:
+;; void sink();
+;; static __attribute__((always_inline)) void bar(int a) { sink(); }
+;; void foo() {
+;; bar(0);
+;; bar(0);
;; }
-;;
-;; int main(void) {
-;; f(0);
-;; f(0);
-;; return 0;
-;; }
-
-; Check that we the first call to f(0) has no inlined subroutine (since the
-; function is optimized out), and the second call correctly describes the
-; formal parameter 'a'.
+; Check that we have formal parameters for 'a' in both inlined subroutines.
+; CHECK: DW_TAG_inlined_subroutine
+; CHECK-NEXT: DW_AT_abstract_origin {{.*}} "bar"
+; CHECK: DW_TAG_formal_parameter
+; CHECK-NEXT: DW_AT_const_value
+; CHECK-NEXT: DW_AT_abstract_origin {{.*}} "a"
; CHECK: DW_TAG_inlined_subroutine
-; CHECK-NOT: DW_TAG_inlined_subroutine
-; CHECK: DW_AT_low_pc
-; CHECK-NEXT: DW_AT_high_pc
-; CHECK-NOT: DW_TAG_inlined_subroutine
+; CHECK-NEXT: DW_AT_abstract_origin {{.*}} "bar"
; CHECK: DW_TAG_formal_parameter
; CHECK-NEXT: DW_AT_const_value
; CHECK-NEXT: DW_AT_abstract_origin {{.*}} "a"
-; CHECK-NOT: DW_TAG_inlined_subroutine
-; CHECK: DW_TAG_variable
-; CHECK-NEXT: DW_AT_location
-; CHECK-NEXT: DW_AT_abstract_origin {{.*}} "l"
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-darwin"
- at g = common global i32* null, align 8
-
; Function Attrs: nounwind ssp uwtable
-define i32 @main() #0 {
+define void @foo() #0 {
entry:
- %l.i2 = alloca i32, align 4
- tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !12, metadata !21), !dbg !22
- %0 = bitcast i32* %l.i2 to i8*, !dbg !24
- call void @llvm.lifetime.start(i64 4, i8* %0), !dbg !24
- tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !12, metadata !21), !dbg !24
- tail call void @llvm.dbg.value(metadata i32* %l.i2, i64 0, metadata !13, metadata !21), !dbg !26
- store i32* %l.i2, i32** @g, align 8, !dbg !27, !tbaa !28
- call void @llvm.lifetime.end(i64 4, i8* %0), !dbg !32
- ret i32 0, !dbg !33
+ tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !12, metadata !17) #3, !dbg !18
+ tail call void (...)* @sink() #3, !dbg !20
+ tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !12, metadata !17) #3, !dbg !21
+ tail call void (...)* @sink() #3, !dbg !23
+ ret void, !dbg !24
}
-; Function Attrs: nounwind readnone
-declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
+declare void @sink(...) #1
-; Function Attrs: nounwind
-declare void @llvm.lifetime.start(i64, i8* nocapture) #2
-
-; Function Attrs: nounwind
-declare void @llvm.lifetime.end(i64, i8* nocapture) #2
+; Function Attrs: nounwind readnone
+declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2
attributes #0 = { nounwind ssp 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" "target-cpu"="core2" "unsafe-fp-math"="false" "use-soft-float"="false" }
-attributes #1 = { nounwind readnone }
-attributes #2 = { nounwind }
+attributes #1 = { "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" "target-cpu"="core2" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #2 = { nounwind readnone }
+attributes #3 = { nounwind }
!llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!17, !18, !19}
-!llvm.ident = !{!20}
+!llvm.module.flags = !{!13, !14, !15}
+!llvm.ident = !{!16}
-!0 = !MDCompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0 (trunk 235110) (llvm/trunk 235108)", isOptimized: true, runtimeVersion: 0, emissionKind: 1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !14, imports: !2)
-!1 = !MDFile(filename: "t.c", directory: "/path/to/dir")
+!0 = !MDCompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0 (trunk 235110) (llvm/trunk 235108)", isOptimized: true, runtimeVersion: 0, emissionKind: 1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+!1 = !MDFile(filename: "t.c", directory: "/Users/dexonsmith/data/llvm/staging/play/inlined-at")
!2 = !{}
-!3 = !{!4, !8}
-!4 = !MDSubprogram(name: "main", scope: !1, file: !1, line: 9, type: !5, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, function: i32 ()* @main, variables: !2)
+!3 = !{!4, !7}
+!4 = !MDSubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, function: void ()* @foo, variables: !2)
!5 = !MDSubroutineType(types: !6)
-!6 = !{!7}
-!7 = !MDBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!8 = !MDSubprogram(name: "f", scope: !1, file: !1, line: 3, type: !9, isLocal: true, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, variables: !11)
-!9 = !MDSubroutineType(types: !10)
-!10 = !{!7, !7}
-!11 = !{!12, !13}
-!12 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "a", arg: 1, scope: !8, file: !1, line: 3, type: !7)
-!13 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "l", scope: !8, file: !1, line: 4, type: !7)
-!14 = !{!15}
-!15 = !MDGlobalVariable(name: "g", scope: !0, file: !1, line: 1, type: !16, isLocal: false, isDefinition: true, variable: i32** @g)
-!16 = !MDDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64, align: 64)
-!17 = !{i32 2, !"Dwarf Version", i32 2}
-!18 = !{i32 2, !"Debug Info Version", i32 3}
-!19 = !{i32 1, !"PIC Level", i32 2}
-!20 = !{!"clang version 3.7.0 (trunk 235110) (llvm/trunk 235108)"}
-!21 = !MDExpression()
-!22 = !MDLocation(line: 3, column: 49, scope: !8, inlinedAt: !23)
-!23 = distinct !MDLocation(line: 10, column: 3, scope: !4)
-!24 = !MDLocation(line: 3, column: 49, scope: !8, inlinedAt: !25)
-!25 = distinct !MDLocation(line: 11, column: 3, scope: !4)
-!26 = !MDLocation(line: 4, column: 7, scope: !8, inlinedAt: !25)
-!27 = !MDLocation(line: 5, column: 5, scope: !8, inlinedAt: !25)
-!28 = !{!29, !29, i64 0}
-!29 = !{!"any pointer", !30, i64 0}
-!30 = !{!"omnipotent char", !31, i64 0}
-!31 = !{!"Simple C/C++ TBAA"}
-!32 = !MDLocation(line: 11, column: 3, scope: !4)
-!33 = !MDLocation(line: 12, column: 3, scope: !4)
+!6 = !{null}
+!7 = !MDSubprogram(name: "bar", scope: !1, file: !1, line: 2, type: !8, isLocal: true, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, variables: !11)
+!8 = !MDSubroutineType(types: !9)
+!9 = !{null, !10}
+!10 = !MDBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!11 = !{!12}
+!12 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "a", arg: 1, scope: !7, file: !1, line: 2, type: !10)
+!13 = !{i32 2, !"Dwarf Version", i32 2}
+!14 = !{i32 2, !"Debug Info Version", i32 3}
+!15 = !{i32 1, !"PIC Level", i32 2}
+!16 = !{!"clang version 3.7.0 (trunk 235110) (llvm/trunk 235108)"}
+!17 = !MDExpression()
+!18 = !MDLocation(line: 2, column: 52, scope: !7, inlinedAt: !19)
+!19 = distinct !MDLocation(line: 4, column: 3, scope: !4)
+!20 = !MDLocation(line: 2, column: 57, scope: !7, inlinedAt: !19)
+!21 = !MDLocation(line: 2, column: 52, scope: !7, inlinedAt: !22)
+!22 = distinct !MDLocation(line: 5, column: 3, scope: !4)
+!23 = !MDLocation(line: 2, column: 57, scope: !7, inlinedAt: !22)
+!24 = !MDLocation(line: 6, column: 1, scope: !4)
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