From 1ceb6c830f4b79f142fc87bb643fb4fc190466fe Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Wed, 11 Oct 2006 18:12:44 +0000 Subject: [PATCH] Add support for let expressions around an mdef. This implements a new part of Regression/TableGen/MultiClass.td. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30887 91177308-0d34-0410-b5e6-96231b3b80d8 --- utils/TableGen/FileParser.y | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/utils/TableGen/FileParser.y b/utils/TableGen/FileParser.y index c0e478d210a..8e564564bde 100644 --- a/utils/TableGen/FileParser.y +++ b/utils/TableGen/FileParser.y @@ -624,9 +624,9 @@ ObjectBody : ClassList { // Delete the template arg values for the class delete (*$1)[i].second; } - delete $1; // Delete the class list... + delete $1; // Delete the class list. - // Process any variables on the set stack... + // Process any variables on the let stack. for (unsigned i = 0, e = LetStack.size(); i != e; ++i) for (unsigned j = 0, e = LetStack[i].size(); j != e; ++j) setValue(LetStack[i][j].Name, @@ -743,6 +743,14 @@ DefMInst : DEFM ID { CurDefmPrefix = $2; } ':' SubClassRef ';' { } } + // If the mdef is inside a 'let' expression, add to each def. + for (unsigned i = 0, e = LetStack.size(); i != e; ++i) + for (unsigned j = 0, e = LetStack[i].size(); j != e; ++j) + setValue(LetStack[i][j].Name, + LetStack[i][j].HasBits ? &LetStack[i][j].Bits : 0, + LetStack[i][j].Value); + + // Ensure redefinition doesn't happen. if (Records.getDef(CurRec->getName())) { err() << "def '" << CurRec->getName() << "' already defined, " -- 2.34.1