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Fix alignment of .comm and .lcomm on mingw32.

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For some reason .lcomm uses byte alignment and .comm log2 alignment so we can't
use the same setting for both. Fix this by reintroducing the LCOMM enum.
I verified this against mingw's gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163420 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2012-09-07 21:08:01 +00:00
parent b72a90e05b
commit a9e37c5eaf
9 changed files with 42 additions and 17 deletions
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6
lib/MC/MCParser/AsmParser.cpp
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@@ -2280,11 +2280,13 @@ bool AsmParser::ParseDirectiveComm(bool IsLocal) {
if (ParseAbsoluteExpression(Pow2Alignment))
return true;
if (IsLocal && !Lexer.getMAI().getLCOMMDirectiveSupportsAlignment())
LCOMM::LCOMMType LCOMM = Lexer.getMAI().getLCOMMDirectiveAlignmentType();
if (IsLocal && LCOMM == LCOMM::NoAlignment)
return Error(Pow2AlignmentLoc, "alignment not supported on this target");
// If this target takes alignments in bytes (not log) validate and convert.
if (Lexer.getMAI().getCOMMDirectiveAlignmentIsInBytes()) {
if ((!IsLocal && Lexer.getMAI().getCOMMDirectiveAlignmentIsInBytes()) ||
(IsLocal && LCOMM == LCOMM::ByteAlignment)) {
if (!isPowerOf2_64(Pow2Alignment))
return Error(Pow2AlignmentLoc, "alignment must be a power of 2");
Pow2Alignment = Log2_64(Pow2Alignment);