[llvm-commits] [llvm] r58786 - in /llvm/trunk: lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp test/DebugInfo/2008-11-05-InlinedFuncStart.ll
Devang Patel
dpatel at apple.com
Wed Nov 5 16:30:09 PST 2008
Author: dpatel
Date: Wed Nov 5 18:30:09 2008
New Revision: 58786
URL: http://llvm.org/viewvc/llvm-project?rev=58786&view=rev
Log:
Emit label for llvm.dbg.func.start of the inlined function.
Added:
llvm/trunk/test/DebugInfo/2008-11-05-InlinedFuncStart.ll
Modified:
llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp?rev=58786&r1=58785&r2=58786&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp Wed Nov 5 18:30:09 2008
@@ -3556,9 +3556,12 @@
SubprogramDesc *Subprogram = cast<SubprogramDesc>(DD);
const CompileUnitDesc *CompileUnit = Subprogram->getFile();
unsigned SrcFile = MMI->RecordSource(CompileUnit);
- // Record the source line but does create a label. It will be emitted
- // at asm emission time.
- MMI->RecordSourceLine(Subprogram->getLine(), 0, SrcFile);
+ // Record the source line but does not create a label for the normal
+ // function start. It will be emitted at asm emission time. However,
+ // create a label if this is a beginning of inlined function.
+ unsigned LabelID = MMI->RecordSourceLine(Subprogram->getLine(), 0, SrcFile);
+ if (MMI->getSourceLines().size() != 1)
+ DAG.setRoot(DAG.getLabel(ISD::DBG_LABEL, getRoot(), LabelID));
}
return 0;
Added: llvm/trunk/test/DebugInfo/2008-11-05-InlinedFuncStart.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/2008-11-05-InlinedFuncStart.ll?rev=58786&view=auto
==============================================================================
--- llvm/trunk/test/DebugInfo/2008-11-05-InlinedFuncStart.ll (added)
+++ llvm/trunk/test/DebugInfo/2008-11-05-InlinedFuncStart.ll Wed Nov 5 18:30:09 2008
@@ -0,0 +1,71 @@
+; RUN: llvm-as < %s | llc
+ %llvm.dbg.anchor.type = type { i32, i32 }
+ %llvm.dbg.basictype.type = type { i32, { }*, i8*, { }*, i32, i64, i64, i64, i32, i32 }
+ %llvm.dbg.compile_unit.type = type { i32, { }*, i32, i8*, i8*, i8* }
+ %llvm.dbg.subprogram.type = type { i32, { }*, { }*, i8*, i8*, i8*, { }*, i32, { }*, i1, i1 }
+ at llvm.dbg.subprogram = internal constant %llvm.dbg.subprogram.type { i32 393262, { }* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.subprograms to { }*), { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i8* getelementptr ([4 x i8]* @.str3, i32 0, i32 0), i8* getelementptr ([4 x i8]* @.str3, i32 0, i32 0), i8* null, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i32 1, { }* bitcast (%llvm.dbg.basictype.type* @llvm.dbg.basictype to { }*), i1 false, i1 true }, section "llvm.metadata" ; <%llvm.dbg.subprogram.type*> [#uses=1]
+ at llvm.dbg.subprograms = linkonce constant %llvm.dbg.anchor.type { i32 393216, i32 46 }, section "llvm.metadata" ; <%llvm.dbg.anchor.type*> [#uses=1]
+ at llvm.dbg.compile_unit = internal constant %llvm.dbg.compile_unit.type { i32 393233, { }* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.compile_units to { }*), i32 1, i8* getelementptr ([4 x i8]* @.str, i32 0, i32 0), i8* getelementptr ([5 x i8]* @.str1, i32 0, i32 0), i8* getelementptr ([52 x i8]* @.str2, i32 0, i32 0) }, section "llvm.metadata" ; <%llvm.dbg.compile_unit.type*> [#uses=1]
+ at llvm.dbg.compile_units = linkonce constant %llvm.dbg.anchor.type { i32 393216, i32 17 }, section "llvm.metadata" ; <%llvm.dbg.anchor.type*> [#uses=1]
+ at .str = internal constant [4 x i8] c"a.c\00", section "llvm.metadata" ; <[4 x i8]*> [#uses=1]
+ at .str1 = internal constant [5 x i8] c"/tmp\00", section "llvm.metadata" ; <[5 x i8]*> [#uses=1]
+ at .str2 = internal constant [52 x i8] c"4.2.1 (Based on Apple Inc. build 5627) (LLVM build)\00", section "llvm.metadata" ; <[52 x i8]*> [#uses=1]
+ at .str3 = internal constant [4 x i8] c"foo\00", section "llvm.metadata" ; <[4 x i8]*> [#uses=1]
+ at llvm.dbg.basictype = internal constant %llvm.dbg.basictype.type { i32 393252, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i8* getelementptr ([4 x i8]* @.str4, i32 0, i32 0), { }* null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5 }, section "llvm.metadata" ; <%llvm.dbg.basictype.type*> [#uses=1]
+ at .str4 = internal constant [4 x i8] c"int\00", section "llvm.metadata" ; <[4 x i8]*> [#uses=1]
+ at llvm.dbg.subprogram5 = internal constant %llvm.dbg.subprogram.type { i32 393262, { }* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.subprograms to { }*), { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i8* getelementptr ([5 x i8]* @.str6, i32 0, i32 0), i8* getelementptr ([5 x i8]* @.str6, i32 0, i32 0), i8* null, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i32 2, { }* bitcast (%llvm.dbg.basictype.type* @llvm.dbg.basictype to { }*), i1 false, i1 true }, section "llvm.metadata" ; <%llvm.dbg.subprogram.type*> [#uses=1]
+ at .str6 = internal constant [5 x i8] c"main\00", section "llvm.metadata" ; <[5 x i8]*> [#uses=1]
+
+define i32 @foo() nounwind alwaysinline {
+entry:
+ %retval = alloca i32 ; <i32*> [#uses=2]
+ %0 = alloca i32 ; <i32*> [#uses=2]
+ %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
+ call void @llvm.dbg.func.start({ }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to { }*))
+ call void @llvm.dbg.stoppoint(i32 1, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
+ store i32 42, i32* %0, align 4
+ %1 = load i32* %0, align 4 ; <i32> [#uses=1]
+ store i32 %1, i32* %retval, align 4
+ br label %return
+
+return: ; preds = %entry
+ %retval1 = load i32* %retval ; <i32> [#uses=1]
+ call void @llvm.dbg.stoppoint(i32 1, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
+ call void @llvm.dbg.region.end({ }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to { }*))
+ ret i32 %retval1
+}
+
+declare void @llvm.dbg.func.start({ }*) nounwind
+
+declare void @llvm.dbg.stoppoint(i32, i32, { }*) nounwind
+
+declare void @llvm.dbg.region.end({ }*) nounwind
+
+define i32 @main() nounwind {
+entry:
+ %retval.i = alloca i32 ; <i32*> [#uses=2]
+ %0 = alloca i32 ; <i32*> [#uses=2]
+ %retval = alloca i32 ; <i32*> [#uses=2]
+ %1 = alloca i32 ; <i32*> [#uses=2]
+ %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
+ call void @llvm.dbg.func.start({ }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram5 to { }*))
+ call void @llvm.dbg.stoppoint(i32 2, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
+ call void @llvm.dbg.func.start({ }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to { }*)) nounwind
+ call void @llvm.dbg.stoppoint(i32 1, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*)) nounwind
+ store i32 42, i32* %0, align 4
+ %2 = load i32* %0, align 4 ; <i32> [#uses=1]
+ store i32 %2, i32* %retval.i, align 4
+ %retval1.i = load i32* %retval.i ; <i32> [#uses=1]
+ call void @llvm.dbg.stoppoint(i32 1, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*)) nounwind
+ call void @llvm.dbg.region.end({ }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to { }*)) nounwind
+ store i32 %retval1.i, i32* %1, align 4
+ %3 = load i32* %1, align 4 ; <i32> [#uses=1]
+ store i32 %3, i32* %retval, align 4
+ br label %return
+
+return: ; preds = %entry
+ %retval1 = load i32* %retval ; <i32> [#uses=1]
+ call void @llvm.dbg.stoppoint(i32 2, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
+ call void @llvm.dbg.region.end({ }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram5 to { }*))
+ ret i32 %retval1
+}
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