Implement .seh_stackalloc and .seh_pushframe parsing.
I haven't implemented any of the ones that take registers yet. The problem is
that for x86-64 the streamer methods expect a native x86 register number (note:
%r8-%r15 want 8-15 instead of 0-7; same for %xmm8-%xmm15). I haven't figured
out exactly how I want to do that yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131899 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCParser/COFFAsmParser.cpp b/lib/MC/MCParser/COFFAsmParser.cpp
index 0045950..63729a6 100644
--- a/lib/MC/MCParser/COFFAsmParser.cpp
+++ b/lib/MC/MCParser/COFFAsmParser.cpp
@@ -256,8 +256,17 @@
return Error(L, "not implemented yet");
}
-bool COFFAsmParser::ParseSEHDirectiveAllocStack(StringRef, SMLoc L) {
- return Error(L, "not implemented yet");
+bool COFFAsmParser::ParseSEHDirectiveAllocStack(StringRef, SMLoc) {
+ int64_t Size;
+ if (getParser().ParseAbsoluteExpression(Size))
+ return true;
+
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in directive");
+
+ Lex();
+ getStreamer().EmitWin64EHAllocStack(Size);
+ return false;
}
bool COFFAsmParser::ParseSEHDirectiveSaveReg(StringRef, SMLoc L) {
@@ -268,8 +277,22 @@
return Error(L, "not implemented yet");
}
-bool COFFAsmParser::ParseSEHDirectivePushFrame(StringRef, SMLoc L) {
- return Error(L, "not implemented yet");
+bool COFFAsmParser::ParseSEHDirectivePushFrame(StringRef, SMLoc) {
+ bool Code;
+ StringRef CodeID;
+ SMLoc startLoc = getLexer().getLoc();
+ if (!getParser().ParseIdentifier(CodeID)) {
+ if (CodeID != "@code")
+ return Error(startLoc, "expected @code");
+ Code = true;
+ }
+
+ if (getLexer().isNot(AsmToken::EndOfStatement))
+ return TokError("unexpected token in directive");
+
+ Lex();
+ getStreamer().EmitWin64EHPushFrame(Code);
+ return false;
}
bool COFFAsmParser::ParseSEHDirectiveEndProlog(StringRef, SMLoc) {