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Fix some unnoticed/unwanted behavior change from r222319.

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The ARM assembler allows register alias redefinitions as long as it
targets the same register. r222319 broke that. In the AArch64 case
it would just produce a new warning, but in the ARM case it would
error out on previously accepted assembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228109 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Frederic Riss
2015-02-04 03:10:03 +00:00
parent 8fa9947e4d
commit 1638ca5493
4 changed files with 8 additions and 3 deletions
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2
lib/Target/ARM/AsmParser/ARMAsmParser.cpp
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@@ -9010,7 +9010,7 @@ bool ARMAsmParser::parseDirectiveReq(StringRef Name, SMLoc L) {
Parser.Lex(); // Consume the EndOfStatement
if (!RegisterReqs.insert(std::make_pair(Name, Reg)).second) {
if (RegisterReqs.insert(std::make_pair(Name, Reg)).first->second != Reg) {
Error(SRegLoc, "redefinition of '" + Name + "' does not match original.");
return false;
}