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llvm-6502/test/DebugInfo/printdbginfo2.ll
Torok Edwin ff7d0e9509 Global variables don't have a corresponding llvm.dbg.declare, yet it is possible 
to obtain debug info about them.
Introduce helpers to access debug info for global variables. Also introduce a
helper that works for both local and global variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66541 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-10 13:41:26 +00:00

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; RUN: llvm-as < %s | opt -print-dbginfo -disable-output > %t1
; RUN: grep {%b is variable b of type x declared at x.c:7} %t1
; RUN: grep {%2 is variable b of type x declared at x.c:7} %t1
; RUN: grep {@c.1442 is variable c of type int declared at x.c:4} %t1
type { } ; type %0
%llvm.dbg.anchor.type = type { i32, i32 }
%llvm.dbg.basictype.type = type { i32, %0*, i8*, %0*, i32, i64, i64, i64, i32, i32 }
%llvm.dbg.compile_unit.type = type { i32, %0*, i32, i8*, i8*, i8*, i1, i1, i8*, i32 }
%llvm.dbg.composite.type = type { i32, %0*, i8*, %0*, i32, i64, i64, i64, i32, %0*, %0*, i32 }
%llvm.dbg.derivedtype.type = type { i32, %0*, i8*, %0*, i32, i64, i64, i64, i32, %0* }
%llvm.dbg.global_variable.type = type { i32, %0*, %0*, i8*, i8*, i8*, %0*, i32, %0*, i1, i1, %0* }
%llvm.dbg.subprogram.type = type { i32, %0*, %0*, i8*, i8*, i8*, %0*, i32, %0*, i1, i1 }
%llvm.dbg.subrange.type = type { i32, i64, i64 }
%llvm.dbg.variable.type = type { i32, %0*, i8*, %0*, i32, %0* }
%struct..0x = type { i32 }
@llvm.dbg.compile_units = linkonce constant %llvm.dbg.anchor.type { i32 458752, i32 17 }, section "llvm.metadata" ; <%llvm.dbg.anchor.type*> [#uses=1]
@.str = internal constant [4 x i8] c"x.c\00", section "llvm.metadata" ; <[4 x i8]*> [#uses=1]
@.str1 = internal constant [27 x i8] c"/home/edwin/llvm-svn/llvm/\00", section "llvm.metadata" ; <[27 x i8]*> [#uses=1]
@.str2 = internal constant [52 x i8] c"4.2.1 (Based on Apple Inc. build 5641) (LLVM build)\00", section "llvm.metadata" ; <[52 x i8]*> [#uses=1]
@llvm.dbg.compile_unit = internal constant %llvm.dbg.compile_unit.type { i32 458769, %0* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.compile_units to %0*), i32 1, i8* getelementptr ([4 x i8]* @.str, i32 0, i32 0), i8* getelementptr ([27 x i8]* @.str1, i32 0, i32 0), i8* getelementptr ([52 x i8]* @.str2, i32 0, i32 0), i1 true, i1 false, i8* null, i32 0 }, section "llvm.metadata" ; <%llvm.dbg.compile_unit.type*> [#uses=1]
@.str3 = internal constant [4 x i8] c"int\00", section "llvm.metadata" ; <[4 x i8]*> [#uses=1]
@llvm.dbg.basictype = internal constant %llvm.dbg.basictype.type { i32 458788, %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*), i8* getelementptr ([4 x i8]* @.str3, i32 0, i32 0), %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*), i32 0, i64 32, i64 32, i64 0, i32 0, i32 5 }, section "llvm.metadata" ; <%llvm.dbg.basictype.type*> [#uses=1]
@llvm.dbg.array = internal constant [1 x %0*] [%0* bitcast (%llvm.dbg.basictype.type* @llvm.dbg.basictype to %0*)], section "llvm.metadata" ; <[1 x %0*]*> [#uses=1]
@llvm.dbg.composite = internal constant %llvm.dbg.composite.type { i32 458773, %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*), i8* null, %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*), i32 0, i64 0, i64 0, i64 0, i32 0, %0* null, %0* bitcast ([1 x %0*]* @llvm.dbg.array to %0*), i32 0 }, section "llvm.metadata" ; <%llvm.dbg.composite.type*> [#uses=1]
@llvm.dbg.subprograms = linkonce constant %llvm.dbg.anchor.type { i32 458752, i32 46 }, section "llvm.metadata" ; <%llvm.dbg.anchor.type*> [#uses=1]
@.str4 = internal constant [5 x i8] c"main\00", section "llvm.metadata" ; <[5 x i8]*> [#uses=1]
@llvm.dbg.subprogram = internal constant %llvm.dbg.subprogram.type { i32 458798, %0* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.subprograms to %0*), %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*), i8* getelementptr ([5 x i8]* @.str4, i32 0, i32 0), i8* getelementptr ([5 x i8]* @.str4, i32 0, i32 0), i8* null, %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*), i32 2, %0* bitcast (%llvm.dbg.composite.type* @llvm.dbg.composite to %0*), i1 false, i1 true }, section "llvm.metadata" ; <%llvm.dbg.subprogram.type*> [#uses=1]
@.str5 = internal constant [2 x i8] c"x\00", section "llvm.metadata" ; <[2 x i8]*> [#uses=1]
@.str7 = internal constant [2 x i8] c"a\00", section "llvm.metadata" ; <[2 x i8]*> [#uses=1]
@llvm.dbg.derivedtype = internal constant %llvm.dbg.derivedtype.type { i32 458765, %0* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to %0*), i8* getelementptr ([2 x i8]* @.str7, i32 0, i32 0), %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*), i32 6, i64 32, i64 32, i64 0, i32 0, %0* bitcast (%llvm.dbg.basictype.type* @llvm.dbg.basictype to %0*) }, section "llvm.metadata" ; <%llvm.dbg.derivedtype.type*> [#uses=1]
@llvm.dbg.array8 = internal constant [1 x %0*] [%0* bitcast (%llvm.dbg.derivedtype.type* @llvm.dbg.derivedtype to %0*)], section "llvm.metadata" ; <[1 x %0*]*> [#uses=1]
@llvm.dbg.composite9 = internal constant %llvm.dbg.composite.type { i32 458771, %0* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to %0*), i8* getelementptr ([2 x i8]* @.str5, i32 0, i32 0), %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*), i32 5, i64 32, i64 32, i64 0, i32 0, %0* null, %0* bitcast ([1 x %0*]* @llvm.dbg.array8 to %0*), i32 0 }, section "llvm.metadata" ; <%llvm.dbg.composite.type*> [#uses=1]
@.str10 = internal constant [2 x i8] c"b\00", section "llvm.metadata" ; <[2 x i8]*> [#uses=1]
@llvm.dbg.variable = internal constant %llvm.dbg.variable.type { i32 459008, %0* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to %0*), i8* getelementptr ([2 x i8]* @.str10, i32 0, i32 0), %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*), i32 7, %0* bitcast (%llvm.dbg.composite.type* @llvm.dbg.composite9 to %0*) }, section "llvm.metadata" ; <%llvm.dbg.variable.type*> [#uses=1]
@llvm.dbg.subrange = internal constant %llvm.dbg.subrange.type { i32 458785, i64 0, i64 3 }, section "llvm.metadata" ; <%llvm.dbg.subrange.type*> [#uses=1]
@llvm.dbg.array11 = internal constant [1 x %0*] [%0* bitcast (%llvm.dbg.subrange.type* @llvm.dbg.subrange to %0*)], section "llvm.metadata" ; <[1 x %0*]*> [#uses=1]
@llvm.dbg.composite12 = internal constant %llvm.dbg.composite.type { i32 458753, %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*), i8* null, %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*), i32 0, i64 128, i64 32, i64 0, i32 0, %0* bitcast (%llvm.dbg.basictype.type* @llvm.dbg.basictype to %0*), %0* bitcast ([1 x %0*]* @llvm.dbg.array11 to %0*), i32 0 }, section "llvm.metadata" ; <%llvm.dbg.composite.type*> [#uses=1]
@llvm.dbg.variable13 = internal constant %llvm.dbg.variable.type { i32 459008, %0* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to %0*), i8* getelementptr ([2 x i8]* @.str7, i32 0, i32 0), %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*), i32 3, %0* bitcast (%llvm.dbg.composite.type* @llvm.dbg.composite12 to %0*) }, section "llvm.metadata" ; <%llvm.dbg.variable.type*> [#uses=1]
@c.1442 = internal global i32 5 ; <i32*> [#uses=2]
@llvm.dbg.global_variables = linkonce constant %llvm.dbg.anchor.type { i32 458752, i32 52 }, section "llvm.metadata" ; <%llvm.dbg.anchor.type*> [#uses=1]
@.str14 = internal constant [7 x i8] c"c.1442\00", section "llvm.metadata" ; <[7 x i8]*> [#uses=1]
@.str15 = internal constant [2 x i8] c"c\00", section "llvm.metadata" ; <[2 x i8]*> [#uses=1]
@llvm.dbg.global_variable = internal constant %llvm.dbg.global_variable.type { i32 458804, %0* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.global_variables to %0*), %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*), i8* getelementptr ([7 x i8]* @.str14, i32 0, i32 0), i8* getelementptr ([2 x i8]* @.str15, i32 0, i32 0), i8* null, %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*), i32 4, %0* bitcast (%llvm.dbg.basictype.type* @llvm.dbg.basictype to %0*), i1 true, i1 true, %0* bitcast (i32* @c.1442 to %0*) }, section "llvm.metadata" ; <%llvm.dbg.global_variable.type*> [#uses=0]
define i32 @main() nounwind {
entry:
%b = alloca %struct..0x ; <%struct..0x*> [#uses=2]
%a = alloca [4 x i32] ; <[4 x i32]*> [#uses=1]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
call void @llvm.dbg.func.start(%0* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to %0*))
%0 = bitcast %struct..0x* %b to %0* ; <%0*> [#uses=1]
call void @llvm.dbg.declare(%0* %0, %0* bitcast (%llvm.dbg.variable.type* @llvm.dbg.variable to %0*))
%1 = bitcast [4 x i32]* %a to %0* ; <%0*> [#uses=1]
call void @llvm.dbg.declare(%0* %1, %0* bitcast (%llvm.dbg.variable.type* @llvm.dbg.variable13 to %0*))
call void @llvm.dbg.stoppoint(i32 8, i32 0, %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*))
%2 = getelementptr %struct..0x* %b, i32 0, i32 0 ; <i32*> [#uses=1]
store i32 5, i32* %2, align 4
call void @llvm.dbg.stoppoint(i32 9, i32 0, %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*))
%3 = load i32* @c.1442, align 4 ; <i32> [#uses=1]
br label %return
return: ; preds = %entry
call void @llvm.dbg.stoppoint(i32 9, i32 0, %0* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to %0*))
call void @llvm.dbg.region.end(%0* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to %0*))
ret i32 %3
}
declare void @llvm.dbg.func.start(%0*) nounwind readnone
declare void @llvm.dbg.declare(%0*, %0*) nounwind readnone
declare void @llvm.dbg.stoppoint(i32, i32, %0*) nounwind readnone
declare void @llvm.dbg.region.end(%0*) nounwind readnone
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