Date: Sat, 8 Nov 2014 13:19:48 +0000 (UTC) From: Dimitry Andric <dim@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r274286 - head/contrib/llvm/lib/MC/MCParser Message-ID: <201411081319.sA8DJmqm012252@svn.freebsd.org>
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Author: dim Date: Sat Nov 8 13:19:48 2014 New Revision: 274286 URL: https://svnweb.freebsd.org/changeset/base/274286 Log: Pull in r201784 from upstream llvm trunk (by Benjamin Kramer): AsmParser: Disable Darwin-style macro argument expansion on non-darwin targets. There is code in the wild that relies on $0 not being expanded. This fixes some cases of using $ signs in literals being incorrectly assembled. Reported by: Richard Henderson Upstream PR: http://llvm.org/PR21500 MFC after: 3 days Modified: head/contrib/llvm/lib/MC/MCParser/AsmParser.cpp Modified: head/contrib/llvm/lib/MC/MCParser/AsmParser.cpp ============================================================================== --- head/contrib/llvm/lib/MC/MCParser/AsmParser.cpp Sat Nov 8 12:59:32 2014 (r274285) +++ head/contrib/llvm/lib/MC/MCParser/AsmParser.cpp Sat Nov 8 13:19:48 2014 (r274286) @@ -1695,7 +1695,7 @@ bool AsmParser::expandMacro(raw_svector_ const MCAsmMacroParameters &Parameters, const MCAsmMacroArguments &A, const SMLoc &L) { unsigned NParameters = Parameters.size(); - if (NParameters != 0 && NParameters != A.size()) + if ((!IsDarwin || NParameters != 0) && NParameters != A.size()) return Error(L, "Wrong number of arguments"); // A macro without parameters is handled differently on Darwin: @@ -1705,7 +1705,7 @@ bool AsmParser::expandMacro(raw_svector_ std::size_t End = Body.size(), Pos = 0; for (; Pos != End; ++Pos) { // Check for a substitution or escape. - if (!NParameters) { + if (IsDarwin && !NParameters) { // This macro has no parameters, look for $0, $1, etc. if (Body[Pos] != '$' || Pos + 1 == End) continue; @@ -1728,7 +1728,7 @@ bool AsmParser::expandMacro(raw_svector_ if (Pos == End) break; - if (!NParameters) { + if (IsDarwin && !NParameters) { switch (Body[Pos + 1]) { // $$ => $ case '$':
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