Date: Tue, 19 Feb 2013 17:53:32 +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: r247003 - head/contrib/llvm/lib/MC/MCParser Message-ID: <201302191753.r1JHrWnm028789@svn.freebsd.org>
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Author: dim Date: Tue Feb 19 17:53:32 2013 New Revision: 247003 URL: http://svnweb.freebsd.org/changeset/base/247003 Log: Pull in r175360 from upstream llvm trunk: MCParser: Reject .balign with non-pow2 alignments. GNU as rejects them and there are configure scripts in the wild that check if the assembler rejects ".align 3" to determine whether the alignment is in bytes or powers of two. 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 Tue Feb 19 17:38:18 2013 (r247002) +++ head/contrib/llvm/lib/MC/MCParser/AsmParser.cpp Tue Feb 19 17:53:32 2013 (r247003) @@ -2372,6 +2372,10 @@ bool AsmParser::ParseDirectiveAlign(bool } Alignment = 1ULL << Alignment; + } else { + // Reject alignments that aren't a power of two, for gas compatibility. + if (!isPowerOf2_64(Alignment)) + Error(AlignmentLoc, "alignment must be a power of 2"); } // Diagnose non-sensical max bytes to align.
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