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Fix DbgStopPointInst->getFileName/getDirectory, broken by the MDNodification in 

r80406, and readd a -print-dbginfo test.

llvm-svn: 80778
This commit is contained in:
Torok Edwin 2009-09-02 11:13:56 +00:00
parent 68c5f477fa
commit 18e03dd70c
3 changed files with 80 additions and 8 deletions
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5
llvm/lib/Analysis/ValueTracking.cpp
View File

@ -1058,6 +1058,11 @@ bool llvm::GetConstantStringInfo(Value *V, std::string &Str, uint64_t Offset,
StopAtNul);
}
if (MDString *MDStr = dyn_cast<MDString>(V)) {
Str = MDStr->getString();
return true;
}
// The GEP instruction, constant or instruction, must reference a global
// variable that is a constant and is initialized. The referenced constant
// initializer is the array that we'll use for optimization.

10
llvm/lib/VMCore/IntrinsicInst.cpp
View File

@ -61,17 +61,11 @@ Value *DbgInfoIntrinsic::StripCast(Value *C) {
Value *DbgStopPointInst::getFileName() const {
// Once the operand indices are verified, update this assert
assert(LLVMDebugVersion == (7 << 16) && "Verify operand indices");
GlobalVariable *GV = cast<GlobalVariable>(getContext());
if (!GV->hasInitializer()) return NULL;
ConstantStruct *CS = cast<ConstantStruct>(GV->getInitializer());
return CS->getOperand(3);
return getContext()->getElement(3);
}
Value *DbgStopPointInst::getDirectory() const {
// Once the operand indices are verified, update this assert
assert(LLVMDebugVersion == (7 << 16) && "Verify operand indices");
GlobalVariable *GV = cast<GlobalVariable>(getContext());
if (!GV->hasInitializer()) return NULL;
ConstantStruct *CS = cast<ConstantStruct>(GV->getInitializer());
return CS->getOperand(4);
return getContext()->getElement(4);
}

73
llvm/test/DebugInfo/printdbginfo2.ll Normal file
View File

@ -0,0 +1,73 @@
; RUN: llvm-as < %s | opt -print-dbginfo -disable-output | FileCheck %s
; grep {%b is variable b of type x declared at x.c:7} %t1
; grep {%2 is variable b of type x declared at x.c:7} %t1
; grep {@c.1442 is variable c of type int declared at x.c:4} %t1
%struct.foo = type { i32 }
@main.c = internal global i32 5 ; <i32*> [#uses=1]
define i32 @main() nounwind {
entry:
; CHECK:; (x.c:6:3)
%retval = alloca i32 ; <i32*> [#uses=3]
%b = alloca %struct.foo, align 4 ; <%struct.foo*> [#uses=2]
; CHECK:; %b is variable b of type foo declared at x.c:7
%a = alloca [4 x i32], align 4 ; <[4 x i32]*> [#uses=1]
; CHECK:; %a is variable a of type declared at x.c:8
call void @llvm.dbg.func.start(metadata !3)
; CHECK:; fully qualified function name: main return type: int at line 5
store i32 0, i32* %retval
call void @llvm.dbg.stoppoint(i32 6, i32 3, metadata !1)
; CHECK:; x.c:7:3
call void @llvm.dbg.stoppoint(i32 7, i32 3, metadata !1)
%0 = bitcast %struct.foo* %b to { }* ; <{ }*> [#uses=1]
call void @llvm.dbg.declare({ }* %0, metadata !4)
; CHECK:; %0 is variable b of type foo declared at x.c:7
call void @llvm.dbg.stoppoint(i32 8, i32 3, metadata !1)
; CHECK:; x.c:8:3
%1 = bitcast [4 x i32]* %a to { }* ; <{ }*> [#uses=1]
call void @llvm.dbg.declare({ }* %1, metadata !8)
; CHECK:; %1 is variable a of type declared at x.c:8
call void @llvm.dbg.stoppoint(i32 9, i32 3, metadata !1)
; CHECK:; x.c:9:3
%tmp = getelementptr inbounds %struct.foo* %b, i32 0, i32 0 ; <i32*> [#uses=1]
; CHECK:; %tmp is variable b of type foo declared at x.c:7
store i32 5, i32* %tmp
; CHECK:; x.c:10:3
call void @llvm.dbg.stoppoint(i32 10, i32 3, metadata !1)
%tmp1 = load i32* @main.c ; <i32> [#uses=1]
; CHECK:; @main.c is variable c of type int declared at x.c:6
store i32 %tmp1, i32* %retval
br label %2
; <label>:2 ; preds = %entry
call void @llvm.dbg.stoppoint(i32 11, i32 1, metadata !1)
; CHECK:; (x.c:11:1)
call void @llvm.dbg.region.end(metadata !3)
%3 = load i32* %retval ; <i32> [#uses=1]
ret i32 %3
}
declare void @llvm.dbg.func.start(metadata) nounwind readnone
declare void @llvm.dbg.stoppoint(i32, i32, metadata) nounwind readnone
declare void @llvm.dbg.declare({ }*, metadata) nounwind readnone
declare void @llvm.dbg.region.end(metadata) nounwind readnone
!llvm.dbg.gv = !{!0}
!0 = metadata !{i32 458804, i32 0, metadata !1, metadata !"c", metadata !"c", metadata !"", metadata !1, i32 6, metadata !2, i1 true, i1 true, i32* @main.c}
!1 = metadata !{i32 458769, i32 0, i32 12, metadata !"x.c", metadata !"/home/edwin/llvm-git/llvm/test/DebugInfo", metadata !"clang 1.0", i1 true, i1 false, metadata !"", i32 0}
!2 = metadata !{i32 458788, metadata !1, metadata !"int", metadata !1, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5}
!3 = metadata !{i32 458798, i32 0, metadata !1, metadata !"main", metadata !"main", metadata !"main", metadata !1, i32 5, metadata !2, i1 false, i1 true}
!4 = metadata !{i32 459008, metadata !3, metadata !"b", metadata !1, i32 7, metadata !5}
!5 = metadata !{i32 458771, metadata !1, metadata !"foo", metadata !1, i32 1, i64 32, i64 32, i64 0, i32 0, null, metadata !6, i32 0}
!6 = metadata !{metadata !7}
!7 = metadata !{i32 458765, metadata !1, metadata !"a", metadata !1, i32 2, i64 32, i64 32, i64 0, i32 0, metadata !2}
!8 = metadata !{i32 459008, metadata !3, metadata !"a", metadata !1, i32 8, metadata !9}
!9 = metadata !{i32 458753, metadata !1, metadata !"", null, i32 0, i64 128, i64 32, i64 0, i32 0, metadata !2, metadata !10, i32 0}
!10 = metadata !{metadata !11}
!11 = metadata !{i32 458785, i64 0, i64 3}