Add half support to LLVM (for OpenCL)
Submitted by: Anton Lokhmotov <Anton.Lokhmotov@arm.com>
Approved by: o Anton Korobeynikov
o Micah Villmow
o David Neto
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157393 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AsmParser/LLLexer.cpp b/lib/AsmParser/LLLexer.cpp
index 8818168..e718069 100644
--- a/lib/AsmParser/LLLexer.cpp
+++ b/lib/AsmParser/LLLexer.cpp
@@ -673,11 +673,12 @@
/// HexFP80Constant 0xK[0-9A-Fa-f]+
/// HexFP128Constant 0xL[0-9A-Fa-f]+
/// HexPPC128Constant 0xM[0-9A-Fa-f]+
+/// HexHalfConstant 0xH[0-9A-Fa-f]+
lltok::Kind LLLexer::Lex0x() {
CurPtr = TokStart + 2;
char Kind;
- if (CurPtr[0] >= 'K' && CurPtr[0] <= 'M') {
+ if (CurPtr[0] >= 'K' && CurPtr[0] <= 'M' || CurPtr[0] == 'H') {
Kind = *CurPtr++;
} else {
Kind = 'J';
@@ -718,6 +719,9 @@
HexToIntPair(TokStart+3, CurPtr, Pair);
APFloatVal = APFloat(APInt(128, Pair));
return lltok::APFloat;
+ case 'H':
+ APFloatVal = APFloat(APInt(16,HexIntToVal(TokStart+3, CurPtr)));
+ return lltok::APFloat;
}
}