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llvm-project/llvm/test/Linker/2009-09-03-mdnode2.ll

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There is not any need to copy metadata while merging modules. llvm-svn: 80941
2009-09-04 04:35:57 +08:00
; This file is used by 2009-09-03-mdnode.ll, so it doesn't actually do anything itself
;
; RUN: true
define i32 @f(...) nounwind {
entry:
%retval = alloca i32 ; <i32*> [#uses=1]
call void @llvm.dbg.func.start(metadata !0)
br label %return
return: ; preds = %entry
%0 = load i32* %retval ; <i32> [#uses=1]
call void @llvm.dbg.stoppoint(i32 3, i32 1, metadata !1)
call void @llvm.dbg.region.end(metadata !0)
ret i32 %0
}
declare void @llvm.dbg.func.start(metadata) nounwind readnone
declare void @llvm.dbg.stoppoint(i32, i32, metadata) nounwind readnone
declare void @llvm.dbg.region.end(metadata) nounwind readnone
Revert "Revert "DI: Fold constant arguments into a single MDString"" This reverts commit r218918, effectively reapplying r218914 after fixing an Ocaml bindings test and an Asan crash. The root cause of the latter was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a PR to investigate who requires the loose check (and why). Original commit message follows. -- This patch addresses the first stage of PR17891 by folding constant arguments together into a single MDString. Integers are stringified and a `\0` character is used as a separator. Part of PR17891. Note: I've attached my testcases upgrade scripts to the PR. If I've just broken your out-of-tree testcases, they might help. llvm-svn: 219010
2014-10-04 04:01:09 +08:00
!0 = metadata !{metadata !"0x2e\00f\00f\00f\001\000\001\000\006\000\000\000", i32 0, metadata !1, null, null, null, null, null} ; [ DW_TAG_subprogram ]
!1 = metadata !{metadata !"0x11\0012\00ellcc 0.1.0\001\00\000\00\000", metadata !2, null, null, null, null, null} ; [ DW_TAG_compile_unit ]
!2 = metadata !{metadata !"b.c", metadata !"/home/rich/ellcc/test/source"}