[llvm-commits] [llvm] r161641 - in /llvm/trunk: docs/LangRef.html include/llvm/Attributes.h lib/AsmParser/LLLexer.cpp lib/AsmParser/LLParser.cpp lib/AsmParser/LLToken.h lib/VMCore/Attributes.cpp utils/llvm.grm
Chad Rosier
mcrosier at apple.com
Thu Aug 9 17:00:22 PDT 2012
Author: mcrosier
Date: Thu Aug 9 19:00:22 2012
New Revision: 161641
URL: http://llvm.org/viewvc/llvm-project?rev=161641&view=rev
Log:
[ms-inline asm] Add a new Inline Asm Non-Standard Dialect attribute.
This new attribute is intended to be used by the backend to determine how
the inline asm string should be parsed/printed. This patch adds the
ia_nsdialect attribute and also adds a test case to ensure the IR is
correctly parsed, but there is no functional change at this time.
The standard dialect is assumed to be AT&T. Therefore, this attribute
should only be added to MS-style inline assembly statements, which use
the Intel dialect. If we ever support more dialects we'll need to
add additional state to the attribute.
Modified:
llvm/trunk/docs/LangRef.html
llvm/trunk/include/llvm/Attributes.h
llvm/trunk/lib/AsmParser/LLLexer.cpp
llvm/trunk/lib/AsmParser/LLParser.cpp
llvm/trunk/lib/AsmParser/LLToken.h
llvm/trunk/lib/VMCore/Attributes.cpp
llvm/trunk/utils/llvm.grm
Modified: llvm/trunk/docs/LangRef.html
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/LangRef.html?rev=161641&r1=161640&r2=161641&view=diff
==============================================================================
--- llvm/trunk/docs/LangRef.html (original)
+++ llvm/trunk/docs/LangRef.html Thu Aug 9 19:00:22 2012
@@ -1208,6 +1208,13 @@
may make calls to the function faster, at the cost of extra program
startup time if the function is not called during program startup.</dd>
+ <dt><tt><b>ia_nsdialect</b></tt></dt>
+ <dd>This attribute indicates the associated inline assembly call is using a
+ non-standard assembly dialect. The standard dialect is ATT, which is
+ assumed when this attribute is not present. When present, the dialect
+ is assumed to be Intel. Currently, ATT and Intel are the only supported
+ dialects.</dd>
+
<dt><tt><b>inlinehint</b></tt></dt>
<dd>This attribute indicates that the source code contained a hint that inlining
this function is desirable (such as the "inline" keyword in C/C++). It
Modified: llvm/trunk/include/llvm/Attributes.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Attributes.h?rev=161641&r1=161640&r2=161641&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Attributes.h (original)
+++ llvm/trunk/include/llvm/Attributes.h Thu Aug 9 19:00:22 2012
@@ -134,6 +134,9 @@
/// often, so lazy binding isn't
/// worthwhile.
DECLARE_LLVM_ATTRIBUTE(AddressSafety,1ULL<<32) ///< Address safety checking is on.
+DECLARE_LLVM_ATTRIBUTE(IANSDialect,1ULL<<33) ///< Inline asm non-standard dialect.
+ /// When not set, ATT dialect assumed.
+ /// When set implies the Intel dialect.
#undef DECLARE_LLVM_ATTRIBUTE
@@ -159,7 +162,8 @@
ReadOnly_i | NoInline_i | AlwaysInline_i | OptimizeForSize_i |
StackProtect_i | StackProtectReq_i | NoRedZone_i | NoImplicitFloat_i |
Naked_i | InlineHint_i | StackAlignment_i |
- UWTable_i | NonLazyBind_i | ReturnsTwice_i | AddressSafety_i};
+ UWTable_i | NonLazyBind_i | ReturnsTwice_i | AddressSafety_i |
+ IANSDialect_i};
/// @brief Parameter attributes that do not apply to vararg call arguments.
const AttrConst VarArgsIncompatible = {StructRet_i};
Modified: llvm/trunk/lib/AsmParser/LLLexer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/AsmParser/LLLexer.cpp?rev=161641&r1=161640&r2=161641&view=diff
==============================================================================
--- llvm/trunk/lib/AsmParser/LLLexer.cpp (original)
+++ llvm/trunk/lib/AsmParser/LLLexer.cpp Thu Aug 9 19:00:22 2012
@@ -553,6 +553,7 @@
KEYWORD(naked);
KEYWORD(nonlazybind);
KEYWORD(address_safety);
+ KEYWORD(ia_nsdialect);
KEYWORD(type);
KEYWORD(opaque);
Modified: llvm/trunk/lib/AsmParser/LLParser.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/AsmParser/LLParser.cpp?rev=161641&r1=161640&r2=161641&view=diff
==============================================================================
--- llvm/trunk/lib/AsmParser/LLParser.cpp (original)
+++ llvm/trunk/lib/AsmParser/LLParser.cpp Thu Aug 9 19:00:22 2012
@@ -962,6 +962,7 @@
case lltok::kw_naked: Attrs |= Attribute::Naked; break;
case lltok::kw_nonlazybind: Attrs |= Attribute::NonLazyBind; break;
case lltok::kw_address_safety: Attrs |= Attribute::AddressSafety; break;
+ case lltok::kw_ia_nsdialect: Attrs |= Attribute::IANSDialect; break;
case lltok::kw_alignstack: {
unsigned Alignment;
Modified: llvm/trunk/lib/AsmParser/LLToken.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/AsmParser/LLToken.h?rev=161641&r1=161640&r2=161641&view=diff
==============================================================================
--- llvm/trunk/lib/AsmParser/LLToken.h (original)
+++ llvm/trunk/lib/AsmParser/LLToken.h Thu Aug 9 19:00:22 2012
@@ -105,6 +105,7 @@
kw_naked,
kw_nonlazybind,
kw_address_safety,
+ kw_ia_nsdialect,
kw_type,
kw_opaque,
Modified: llvm/trunk/lib/VMCore/Attributes.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/Attributes.cpp?rev=161641&r1=161640&r2=161641&view=diff
==============================================================================
--- llvm/trunk/lib/VMCore/Attributes.cpp (original)
+++ llvm/trunk/lib/VMCore/Attributes.cpp Thu Aug 9 19:00:22 2012
@@ -88,6 +88,9 @@
Result += utostr(Attribute::getAlignmentFromAttrs(Attrs));
Result += " ";
}
+ if (Attrs & Attribute::IANSDialect)
+ Result += "ia_nsdialect ";
+
// Trim the trailing space.
assert(!Result.empty() && "Unknown attribute!");
Result.erase(Result.end()-1);
Modified: llvm/trunk/utils/llvm.grm
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/llvm.grm?rev=161641&r1=161640&r2=161641&view=diff
==============================================================================
--- llvm/trunk/utils/llvm.grm (original)
+++ llvm/trunk/utils/llvm.grm Thu Aug 9 19:00:22 2012
@@ -175,6 +175,7 @@
| returns_twice
| nonlazybind
| address_safety
+ | ia_nsdialect
;
OptFuncAttrs ::= + _ | OptFuncAttrs FuncAttr ;
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