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If a scope has only one instruction then first instruction is also the last instruction. 

llvm-svn: 92736
This commit is contained in:
Devang Patel 2010-01-05 16:59:17 +00:00
parent b5358003fb
commit d146e2e3df
2 changed files with 19 additions and 1 deletions
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2
llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -218,7 +218,7 @@ public:
// Use the end of last child scope as end of this scope.
SmallVector<DbgScope *, 4> &Scopes = getScopes();
const MachineInstr *LastInsn = NULL;
const MachineInstr *LastInsn = getFirstInsn();
unsigned LIndex = 0;
if (Scopes.empty()) {
assert (getLastInsn() && "Inner most scope does not have last insn!");

18
llvm/test/DebugInfo/2010-01-05-DbgScope.ll Normal file
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@ -0,0 +1,18 @@
; RUN: llc < %s -o /dev/null
; PR 5942
define i8* @foo() nounwind {
entry:
%0 = load i32* undef, align 4, !dbg !0 ; <i32> [#uses=1]
%1 = inttoptr i32 %0 to i8*, !dbg !0 ; <i8*> [#uses=1]
ret i8* %1, !dbg !10
}
!0 = metadata !{i32 571, i32 3, metadata !1, null}
!1 = metadata !{i32 458763, metadata !2}; [DW_TAG_lexical_block ]
!2 = metadata !{i32 458798, i32 0, metadata !3, metadata !"foo", metadata !"foo", metadata !"foo", metadata !3, i32 561, metadata !4, i1 false, i1 true}; [DW_TAG_subprogram ]
!3 = metadata !{i32 458769, i32 0, i32 12, metadata !"hashtab.c", metadata !"/usr/src/gnu/usr.bin/cc/cc_tools/../../../../contrib/gcclibs/libiberty", metadata !"clang 1.1", i1 true, i1 false, metadata !"", i32 0}; [DW_TAG_compile_unit ]
!4 = metadata !{i32 458773, metadata !3, metadata !"", null, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !5, i32 0}; [DW_TAG_subroutine_type ]
!5 = metadata !{metadata !6}
!6 = metadata !{i32 458788, metadata !3, metadata !"char", metadata !3, i32 0, i64 8, i64 8, i64 0, i32 0, i32 6} ; [ DW_TAG_base_type ]
!10 = metadata !{i32 588, i32 1, metadata !2, null}