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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2012-01-28 06:22:14 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2012-01-28 06:22:14 +0000 |
| commit | 8b01c82f25aaea12340f53789ba59a2527713b9e (patch) | |
| tree | 674aaf9f3ddbc3e748718dcc8bd49533e01cd246 | |
| parent | e71cc86ad10143173195182f28bf90844f682436 (diff) | |
| download | llvm-8b01c82f25aaea12340f53789ba59a2527713b9e.tar.gz llvm-8b01c82f25aaea12340f53789ba59a2527713b9e.tar.bz2 llvm-8b01c82f25aaea12340f53789ba59a2527713b9e.tar.xz | |
Small improvement to the recursion detection logic from the previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149175 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/MC/MCParser/AsmParser.cpp | 4 | ||||
| -rw-r--r-- | test/MC/AsmParser/variables-invalid.s | 4 |
2 files changed, 7 insertions, 1 deletions
diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp index 8acdf38400..c5a483c144 100644 --- a/lib/MC/MCParser/AsmParser.cpp +++ b/lib/MC/MCParser/AsmParser.cpp @@ -1565,7 +1565,9 @@ static bool IsUsedIn(const MCSymbol *Sym, const MCExpr *Value) { return false; case MCExpr::SymbolRef: { const MCSymbol &S = static_cast<const MCSymbolRefExpr*>(Value)->getSymbol(); - return &S.AliasedSymbol() == Sym; + if (S.isVariable()) + return IsUsedIn(Sym, S.getVariableValue()); + return &S == Sym; } case MCExpr::Unary: return IsUsedIn(Sym, static_cast<const MCUnaryExpr*>(Value)->getSubExpr()); diff --git a/test/MC/AsmParser/variables-invalid.s b/test/MC/AsmParser/variables-invalid.s index c0f6c39876..21758d20c8 100644 --- a/test/MC/AsmParser/variables-invalid.s +++ b/test/MC/AsmParser/variables-invalid.s @@ -21,3 +21,7 @@ t2_s0: t4_s0 = t4_s1 t4_s1 = t4_s2 t4_s2 = t4_s0 + +// CHECK: Recursive use of 't5_s1' + t5_s0 = t5_s1 + 1 + t5_s1 = t5_s0 |