From 39d662f7ba0aa80799a2c6ea2ca84b0c0727db66 Mon Sep 17 00:00:00 2001 From: Igor Laevsky Date: Sat, 11 Jul 2015 10:30:36 +0000 Subject: Add argmemonly attribute. This change adds new attribute called "argmemonly". Function marked with this attribute can only access memory through it's argument pointers. This attribute directly corresponds to the "OnlyAccessesArgumentPointees" ModRef behaviour in alias analysis. Differential Revision: http://reviews.llvm.org/D10398 llvm-svn: 241979 --- llvm/lib/AsmParser/LLLexer.cpp | 1 + llvm/lib/AsmParser/LLParser.cpp | 67 +++++++++++++++++++++++------------------ llvm/lib/AsmParser/LLToken.h | 1 + 3 files changed, 40 insertions(+), 29 deletions(-) (limited to 'llvm/lib/AsmParser') diff --git a/llvm/lib/AsmParser/LLLexer.cpp b/llvm/lib/AsmParser/LLLexer.cpp index 88f359d4fd5..5c4bab734b2 100644 --- a/llvm/lib/AsmParser/LLLexer.cpp +++ b/llvm/lib/AsmParser/LLLexer.cpp @@ -593,6 +593,7 @@ lltok::Kind LLLexer::LexIdentifier() { KEYWORD(attributes); KEYWORD(alwaysinline); + KEYWORD(argmemonly); KEYWORD(builtin); KEYWORD(byval); KEYWORD(inalloca); diff --git a/llvm/lib/AsmParser/LLParser.cpp b/llvm/lib/AsmParser/LLParser.cpp index aa96d60ca0d..1c6e7bd18d0 100644 --- a/llvm/lib/AsmParser/LLParser.cpp +++ b/llvm/lib/AsmParser/LLParser.cpp @@ -946,35 +946,42 @@ bool LLParser::ParseFnAttributeValuePairs(AttrBuilder &B, B.addStackAlignmentAttr(Alignment); continue; } - case lltok::kw_alwaysinline: B.addAttribute(Attribute::AlwaysInline); break; - case lltok::kw_builtin: B.addAttribute(Attribute::Builtin); break; - case lltok::kw_cold: B.addAttribute(Attribute::Cold); break; - case lltok::kw_convergent: B.addAttribute(Attribute::Convergent); break; - case lltok::kw_inlinehint: B.addAttribute(Attribute::InlineHint); break; - case lltok::kw_jumptable: B.addAttribute(Attribute::JumpTable); break; - case lltok::kw_minsize: B.addAttribute(Attribute::MinSize); break; - case lltok::kw_naked: B.addAttribute(Attribute::Naked); break; - case lltok::kw_nobuiltin: B.addAttribute(Attribute::NoBuiltin); break; - case lltok::kw_noduplicate: B.addAttribute(Attribute::NoDuplicate); break; - case lltok::kw_noimplicitfloat: B.addAttribute(Attribute::NoImplicitFloat); break; - case lltok::kw_noinline: B.addAttribute(Attribute::NoInline); break; - case lltok::kw_nonlazybind: B.addAttribute(Attribute::NonLazyBind); break; - case lltok::kw_noredzone: B.addAttribute(Attribute::NoRedZone); break; - case lltok::kw_noreturn: B.addAttribute(Attribute::NoReturn); break; - case lltok::kw_nounwind: B.addAttribute(Attribute::NoUnwind); break; - case lltok::kw_optnone: B.addAttribute(Attribute::OptimizeNone); break; - case lltok::kw_optsize: B.addAttribute(Attribute::OptimizeForSize); break; - case lltok::kw_readnone: B.addAttribute(Attribute::ReadNone); break; - case lltok::kw_readonly: B.addAttribute(Attribute::ReadOnly); break; - case lltok::kw_returns_twice: B.addAttribute(Attribute::ReturnsTwice); break; - case lltok::kw_ssp: B.addAttribute(Attribute::StackProtect); break; - case lltok::kw_sspreq: B.addAttribute(Attribute::StackProtectReq); break; - case lltok::kw_sspstrong: B.addAttribute(Attribute::StackProtectStrong); break; - case lltok::kw_safestack: B.addAttribute(Attribute::SafeStack); break; - case lltok::kw_sanitize_address: B.addAttribute(Attribute::SanitizeAddress); break; - case lltok::kw_sanitize_thread: B.addAttribute(Attribute::SanitizeThread); break; - case lltok::kw_sanitize_memory: B.addAttribute(Attribute::SanitizeMemory); break; - case lltok::kw_uwtable: B.addAttribute(Attribute::UWTable); break; + case lltok::kw_alwaysinline: B.addAttribute(Attribute::AlwaysInline); break; + case lltok::kw_argmemonly: B.addAttribute(Attribute::ArgMemOnly); break; + case lltok::kw_builtin: B.addAttribute(Attribute::Builtin); break; + case lltok::kw_cold: B.addAttribute(Attribute::Cold); break; + case lltok::kw_convergent: B.addAttribute(Attribute::Convergent); break; + case lltok::kw_inlinehint: B.addAttribute(Attribute::InlineHint); break; + case lltok::kw_jumptable: B.addAttribute(Attribute::JumpTable); break; + case lltok::kw_minsize: B.addAttribute(Attribute::MinSize); break; + case lltok::kw_naked: B.addAttribute(Attribute::Naked); break; + case lltok::kw_nobuiltin: B.addAttribute(Attribute::NoBuiltin); break; + case lltok::kw_noduplicate: B.addAttribute(Attribute::NoDuplicate); break; + case lltok::kw_noimplicitfloat: + B.addAttribute(Attribute::NoImplicitFloat); break; + case lltok::kw_noinline: B.addAttribute(Attribute::NoInline); break; + case lltok::kw_nonlazybind: B.addAttribute(Attribute::NonLazyBind); break; + case lltok::kw_noredzone: B.addAttribute(Attribute::NoRedZone); break; + case lltok::kw_noreturn: B.addAttribute(Attribute::NoReturn); break; + case lltok::kw_nounwind: B.addAttribute(Attribute::NoUnwind); break; + case lltok::kw_optnone: B.addAttribute(Attribute::OptimizeNone); break; + case lltok::kw_optsize: B.addAttribute(Attribute::OptimizeForSize); break; + case lltok::kw_readnone: B.addAttribute(Attribute::ReadNone); break; + case lltok::kw_readonly: B.addAttribute(Attribute::ReadOnly); break; + case lltok::kw_returns_twice: + B.addAttribute(Attribute::ReturnsTwice); break; + case lltok::kw_ssp: B.addAttribute(Attribute::StackProtect); break; + case lltok::kw_sspreq: B.addAttribute(Attribute::StackProtectReq); break; + case lltok::kw_sspstrong: + B.addAttribute(Attribute::StackProtectStrong); break; + case lltok::kw_safestack: B.addAttribute(Attribute::SafeStack); break; + case lltok::kw_sanitize_address: + B.addAttribute(Attribute::SanitizeAddress); break; + case lltok::kw_sanitize_thread: + B.addAttribute(Attribute::SanitizeThread); break; + case lltok::kw_sanitize_memory: + B.addAttribute(Attribute::SanitizeMemory); break; + case lltok::kw_uwtable: B.addAttribute(Attribute::UWTable); break; // Error handling. case lltok::kw_inreg: @@ -1258,6 +1265,7 @@ bool LLParser::ParseOptionalParamAttrs(AttrBuilder &B) { case lltok::kw_alignstack: case lltok::kw_alwaysinline: + case lltok::kw_argmemonly: case lltok::kw_builtin: case lltok::kw_inlinehint: case lltok::kw_jumptable: @@ -1334,6 +1342,7 @@ bool LLParser::ParseOptionalReturnAttrs(AttrBuilder &B) { case lltok::kw_alignstack: case lltok::kw_alwaysinline: + case lltok::kw_argmemonly: case lltok::kw_builtin: case lltok::kw_cold: case lltok::kw_inlinehint: diff --git a/llvm/lib/AsmParser/LLToken.h b/llvm/lib/AsmParser/LLToken.h index 2487d120813..691f085f0c9 100644 --- a/llvm/lib/AsmParser/LLToken.h +++ b/llvm/lib/AsmParser/LLToken.h @@ -100,6 +100,7 @@ namespace lltok { // Attributes: kw_attributes, kw_alwaysinline, + kw_argmemonly, kw_sanitize_address, kw_builtin, kw_byval, -- cgit v1.2.3