aboutsummaryrefslogtreecommitdiff
path: root/lib/CodeGen/CGCall.cpp
AgeCommit message (Collapse)Author
2012-10-16Add pnaclcall convention to Native Client targets.Derek Schuff
Because PNaCl bitcode must be target-independent, it uses some different bitcode representations from other targets (e.g. byval and sret for structures). This means that without additional type information, it cannot meet some native ABI requirements for some targets (e.g. passing structures containing unions by value on x86-64). To allow generation of code which uses the correct native ABIs, we also support triples such as x86_64-nacl, which uses target-dependent IR (as opposed to le32-nacl, which uses byval and sret). To allow interoperation between the two types of code, this patch adds a calling convention attribute to be used in code compiled with the target-dependent triple, which will generate code using the le32-style bitcode. This calling convention does not need to be explicitly supported in the backend because it determines bitcode representation rather than native conventions (the backend just needs to undersand how to handle byval and sret for the Native Client OS). This patch implements __attribute__((pnaclcall)) to generate calls in bitcode according to the le32 bitcode conventions, an attribute which is accepted by any Native Client target, but issues a warning otherwise. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166065 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16Use the Attributes::get method which takes an AttrVal value directly to ↵Bill Wendling
simplify the code a bit. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166010 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Move the Attributes::Builder outside of the Attributes class and into its ↵Bill Wendling
own class named AttrBuilder. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165961 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Use enum values instead of magic numbers for indexing into the attribute list.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165925 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Attributes RewriteBill Wendling
Convert the uses of the Attributes class over to the new format. The Attributes::get method call now takes an LLVM context so that the attributes object can be uniquified and stored. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165918 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-10Apply the same fundamental fix for PR14048 as was applied for PR11905.Chandler Carruth
The issue arises when coercing to/from types of different sizes. We need to be certain that the allocation on either end has sufficient room for the coerced type. When it doesn't, we need to make room, copy across, and then proceed. PR11905 handled the case of storing function arguments back into allocas in the function prolog, this patch handles the case of setting up the function arguments in a call expression. This is actually significantly simpler than the fix for PR11905. It ends up being a trivial change to create a temporary alloca when the source is too small and memcpy across. This should preserve the compile-time fast-isel benefits of doing gep+load sequences and avoiding FCAs. Reviewed by Benjamin and Evgeniy (who fixed PR11905). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165615 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-10Remove the final bits of Attributes being declared in the AttributeBill Wendling
namespace. Use the attribute's enum value instead. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165611 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-08Move TargetData to DataLayout.Micah Villmow
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165395 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-21Update for encapsulating the "construct*AlignmentFromInt" methods.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164374 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-07In ARC, if we're emitting assembly markers for calls toJohn McCall
objc_retainAutoreleasedReturnValue, we need to also be killing them during return peepholing. Make sure we recognize an intervening bitcast, but more importantly, assert if we can't find the asm marker at all. rdar://problem/12133032 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163431 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-31Handle functions with struct arguments or return types and the regparmRafael Espindola
attribute. It is a variation of the x86_64 ABI: * A struct returned indirectly uses the first register argument to pass the pointer. * Floats, Doubles and structs containing only one of them are not passed in registers. * Other structs are split into registers if they fit on the remaining ones. Otherwise they are passed in memory. * When a struct doesn't fit it still consumes the registers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161022 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-31Don't crash *or* insert a bogus autorelease when emitting aJohn McCall
this-adjustment thunk in ARC++. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161014 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-12[Windows] Use thiscall as the default calling convention for class methods. ↵Timur Iskhodzhanov
PR12785 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160121 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-07Distinguish more carefully between free functions and C++ instance methodsJohn McCall
in the ABI arrangement, and leave a hook behind so that we can easily tweak CCs on platforms that use different CCs by default for C++ instance methods. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159894 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-22revert CodeGen support for the alloc_size attribute until we finish the ↵Nuno Lopes
design of a more generic metadata node git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159016 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06Revert Decl's iterators back to pointer value_type rather than reference ↵David Blaikie
value_type In addition, I've made the pointer and reference typedef 'void' rather than T* just so they can't get misused. I would've omitted them entirely but std::distance likes them to be there even if it doesn't use them. This rolls back r155808 and r155869. Review by Doug Gregor incorporating feedback from Chandler Carruth. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158104 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-28adjust to mainline llvm API change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157557 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-25fix codegen support for alloc_size attribute for static C++ methodsNuno Lopes
add test case for C++ codegen git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157500 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-25add CodeGen support for the alloc_size attributeNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157483 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-30Remove the ref/value inconsistency in filter_decl_iterator.David Blaikie
filter_decl_iterator had a weird mismatch where both op* and op-> returned T* making it difficult to generalize this filtering behavior into a reusable library of any kind. This change errs on the side of value, making op-> return T* and op* return T&. (reviewed by Richard Smith) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155808 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-16Propagate alignment on lvalues through EmitLValueForField. PR12395.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154789 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-13Step forward with supporting of ARM homogenous aggregates:Anton Korobeynikov
- Handle unions - Handle C++ classes git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154664 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-29Revert r153613 as it's causing large compile-time regressions on the nightly ↵Chad Rosier
testers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153660 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-28When we can't prove that the target of an aggregate copy isJohn McCall
a complete object, the memcpy needs to use the data size of the structure instead of its sizeof() value. Fixes PR12204. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153613 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-16When "low alignment" is specified, then set the alignment of the aggregate'sBill Wendling
store to 1. This allows code-gen to select a more appropriate alignment. If left to zero, an alignment greater than the alignment of the pointer may be selected, causing code-gen to use instructions which require an alignment greater than the pointer guarantees. <rdar://problem/11043589> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152951 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-11Unify naming of LangOptions variable/get function across the Clang stack ↵David Blaikie
(Lex to AST). The member variable is always "LangOpts" and the member function is always "getLangOpts". Reviewed by Chris Lattner git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-17Whether an argument is required (in contrast with being anJohn McCall
optional argument passed through the variadic ellipsis) potentially affects how we need to lower it. Propagate this information down to the various getFunctionInfo(...) overloads on CodeGenTypes. Furthermore, rename those overloads to clarify their distinct purposes, and make sure we're calling the right one in the right place. This has a nice side-effect of making it easier to construct a function type, since the 'variadic' bit is no longer separable. This shouldn't really change anything for our existing platforms, with one minor exception --- we should now call variadic ObjC methods with the ... in the "right place" (see the test case), which I guess matters for anyone running GNUStep on MIPS. Mostly it's just a substantial clean-up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150788 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Teach clang to add metadata tags to calls and invokes in ObjC withDan Gohman
-fno-objc-arc-exceptions. This will allow the optimizer to perform optimizations which are only safe under that flag. This is a part of rdar://10803830. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150644 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-10Fix function prolog codegen whe coerce-to type is a struct.Evgeniy Stepanov
This changes function prolog in such a way as to avoid out-of-bounds stack store in the case when coerce-to type has a larger storage size than the real argument type. Fixes PR11905. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150238 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-29When emitting an ARC epilogue that looks like a return of 'self',John McCall
kill the retain from the return site. This has the workaround nature. It's badness all around. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149193 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-29Get a little bit smarter about killing off the ReturnValue allocaJohn McCall
in the presence of straight-line cleanups. This is a simple but important case, particularly for ARC. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149190 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20use llvm:Attributes instead of unsignedKostya Serebryany
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148554 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-09Move the piece of code up that skips the padding argument. Without this change,Akira Hatanaka
padding insertion will not work if the coerced type is not a structure. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147786 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07Add field PaddingType to ABIArgInfo which specifies the type of padding thatAkira Hatanaka
is inserted before the real argument. Padding is needed to ensure the backend reads from or writes to the correct argument slots when the original alignment of a byval structure is unavailable due to flattening. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147699 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-03Switch LValue so that it exposes alignment in CharUnits. (No functional ↵Eli Friedman
change.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145753 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-03Add a utility to get a RValue for a given LValue for an aggregate; switch a ↵Eli Friedman
few places over to it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145747 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-27Add inreg attributes to reference arguments.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145189 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-15Fix crash in calling convention code expanding an struct with a complex member.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144612 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-03Fix alignment on alloca's for parameters using ABIArgInfo::Expand. Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143658 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-31In x86_64, when calling an Objective-C method that returns a _Complex long ↵Anders Carlsson
double, make sure to use the objc_msgSend_fp2ret function which ensures that the return value will be {0, 0} if the receiver is nil. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143350 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-22Fix a typo that completely broke the expansion of complex arguments.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142734 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-12Add returns_twice to functions that are known to return twice. This implementsRafael Espindola
the same behavior of gcc by keeping the attribute out of the function type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141803 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03Propagate __attribute__((returns_twice)) from C to IL.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141002 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03Allow getting all source locations of selector identifiers in a ObjCMethodDecl.Argyrios Kyrtzidis
Instead of always storing all source locations for the selector identifiers we check whether all the identifiers are in a "standard" position; "standard" position is -Immediately before the arguments: -(id)first:(int)x second:(int)y; -With a space between the arguments: -(id)first: (int)x second: (int)y; -For nullary selectors, immediately before ';': -(void)release; In such cases we infer the locations instead of storing them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140989 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-23Removing a bunch of dead returns/breaks after llvm_unreachables.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140407 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-23Switch assert(0/false) llvm_unreachable.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140367 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Extend the ASTContext constructor to delay the initialization ofDouglas Gregor
builtin types (When requested). This is another step toward making ASTUnit build the ASTContext as needed when loading an AST file, rather than doing so after the fact. No actual functionality change (yet). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138985 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Slight optimization enabled by the previous assert: John McCall
emit all gl-value arguments as reference bindings. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138655 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Assert that a call argument is a gl-value iff the parameter is a reference type.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138639 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Track whether an AggValueSlot is potentially aliased, and do notJohn McCall
emit call results into potentially aliased slots. This allows us to properly mark indirect return slots as noalias, at the cost of requiring an extra memcpy when assigning an aggregate call result into a l-value. It also brings us into compliance with the x86-64 ABI. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138599 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-05-05 04:10:54 +0000