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path: root/lib/CodeGen/TargetInfo.cpp
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2013-04-17Set SRet flags properly in '-cxx-abi microsoft'.Timur Iskhodzhanov
Also, - abstract out the indirect/in memory/in registers decisions into the CGCXXABI - fix handling of empty struct arguments for '-cxx-abi microsoft' - add/fix tests git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179681 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-16Standardize accesses to the TargetInfo in IR-gen.John McCall
Patch by Stephen Lin! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179638 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-08The PNaCl target no longer permits __attribute__((regparm)).Eli Bendersky
Remove the custom lowering code dealing with it, disallow it in PNaclTargetInfo and adjust tests accordingly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179059 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-05Proper prefix for doxygen commentsEli Bendersky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178878 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-04Add some documentation for PNaClABIInfo.Eli Bendersky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178802 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-30Use kernel metadata to differentiate between kernel and deviceJustin Holewinski
functions for the NVPTX target. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178418 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-25IR-gen should not generate an MMX types unless the code is explicitly using MMXChad Rosier
intrinsics. rdar://13213542 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177911 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-19Revert r177329.Rafael Espindola
If this should not happen, we should have an assert. If it should happen, we should have a test and remove the comment. In no case should we have this self inconsistent code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177399 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-18This code works around what appears to be a bug in another part of clang.Reed Kotler
I have filed http://llvm.org/bugs/show_bug.cgi?id=15538 against clang. This code is safer anyway because "cast" assumes you really know that it's okay to make the cast. In this case isa should not be false and dyn_cast should not return null as far as I understand. But everything else is valid so I did not want to revert my previous patch for attributes mips16/nomips16 or use an llvm_unreachable here which would make a number of our tests fail for mips. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177329 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-13Cause the mips16/nomips16 attribute to be passed to LLVM from ClangReed Kotler
in the LLVM assembly language output. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176971 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Change hasAggregateLLVMType, which conflates complex andJohn McCall
aggregate types in a profoundly wrong way that has to be worked around in every call site, to getEvaluationKind, which classifies and distinguishes between all of these cases. Also, normalize the API for loading and storing complexes. I'm working on a larger patch and wanted to pull these changes out, but it would have be annoying to detangle them from each other. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176656 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-28Use the actual ABI-determined C calling convention for runtimeJohn McCall
calls and declarations. LLVM has a default CC determined by the target triple. This is not always the actual default CC for the ABI we've been asked to target, and so we sometimes find ourselves annotating all user functions with an explicit calling convention. Since these calling conventions usually agree for the simple set of argument types passed to most runtime functions, using the LLVM-default CC in principle has no effect. However, the LLVM optimizer goes into histrionics if it sees this kind of formal CC mismatch, since it has no concept of CC compatibility. Therefore, if this module happens to define the "runtime" function, or got LTO'ed with such a definition, we can miscompile; so it's quite important to get this right. Defining runtime functions locally is quite common in embedded applications. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176286 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Add support for AArch64 target.Tim Northover
In cooperation with the LLVM patch, this should implement all scalar front-end parts of the C and C++ ABIs for AArch64. This patch excludes the NEON support also reviewed due to an outbreak of batshit insanity in our legal department. That will be committed soon bringing the changes to precisely what has been approved. Further reviews would be gratefully received. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174055 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-24[mips] Do not emit i32 padding if target ABI is O32. This was causing backendAkira Hatanaka
to pass floating point arguments to be passed in integer registers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173375 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-23Use the AttributeSet when adding multiple attributes and an Attribute::AttrKindBill Wendling
when adding a single attribute to the function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173211 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16First step in implementation of mips16 and nomips16 attributes.Reed Kotler
Waiting for new llvm attribute code for the next step. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172626 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-14This patch addresses varargs processing for small complex types underBill Schmidt
the 64-bit PowerPC ELF ABI. The ABI requires that the real and imaginary parts of a complex argument each occupy their own doubleword. Arguments smaller than 8 bytes are right-adjusted within the doubleword. Clang expects EmitVAARG() to return a pointer to a structure in which the real and imaginary parts are packed adjacently in memory. To accomplish this, we generate code to load the code appropriately from the varargs location and pack the values into a temporary variable in the form Clang expects, returning a pointer to that structure. The test case demonstrates correct code generation for all "small" complex types on PPC64: int, short, char, and float. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172438 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-02Rewrite #includes for llvm/Foo.h to llvm/IR/Foo.h as appropriate toChandler Carruth
reflect the migration in r171366. Re-sort the #include lines to reflect the new paths. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171369 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20Rename llvm::Attributes to llvm::Attribute.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170722 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20Revert r170500. It over-zealously converted *ALL* things named Attributes, ↵Bill Wendling
which is wrong here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170721 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19Rename the 'Attributes' class to 'Attribute'. It's going to represent a ↵Bill Wendling
single attribute in the future. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170500 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-17This patch fixes PR13624, which notes a 64-bit PowerPC ELF ABIBill Schmidt
incompatibility with how complex values are returned. It is sufficient to flag all complex types as direct rather than indirect. A new test case is provided that checks correct IR generation for the various supported flavors of _Complex. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170302 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07s/AttrListPtr/AttributeSet/g to better label what this class is going to be ↵Bill Wendling
in the near future. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169652 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Adapt to LLVM commit 169291 which streamlines the usage of NaCl/NativeClientEli Bendersky
in the triple. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169292 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Sort all of Clang's files under 'lib', and fix up the broken headersChandler Carruth
uncovered. This required manually correcting all of the incorrect main-module headers I could find, and running the new llvm/utils/sort_includes.py script over the files. I also manually added quite a few missing headers that were uncovered by shuffling the order or moving headers up to be main-module-headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169237 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Fix a small calling-convention bug for x86-32. PR14453.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168959 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27This patch addresses an incompatibility relative to the 64-bit PowerPCBill Schmidt
ELF ABI. Complex values are to be passed in registers as though the real and imaginary parts were passed as separate parameters. Prior to this patch, complex values were passed as byval aggregates. It turns out that specifying getDirect() for all complex types when classifying the argument type results in the desired behavior. The new Clang test case verifies that the correct LLVM IR is generated for caller and callee for each of the underlying types for _Complex. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168673 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26MSPGCC renamed ISR vectors from vector_<address> to __isr_<number>. This ↵Anton Korobeynikov
patch makes Clang reflect this scheme. Patch by Job Noorman! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168598 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-16A step towards sorting out handling of triviality of special members in C++11.Richard Smith
Separate out the notions of 'has a trivial special member' and 'has a non-trivial special member', and use them appropriately. These are not opposites of one another (there might be no special member, or in C++11 there might be a trivial one and a non-trivial one). The CXXRecordDecl predicates continue to produce incorrect results, but do so in fewer cases now, and they document the cases where they might be wrong. No functionality changes are intended here (they will come when the predicates start producing the right answers...). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168119 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Cleanup: 80-column violationManman Ren
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167476 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06ARM byval: when type alignment is bigger than ABI alignment, instead ofManman Ren
disabling byval, we set realign to true. It will perform an aligned alloca, and call memcpy to copy the byval argument to the local variable. Change the size threshold back to 64 bytes. rdar://12596507 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167440 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05ARM byval: when type alignment is bigger than ABI alignment, we can't guaranteeManman Ren
the type alignment of the byval argument. This patch will disable byval in this case, it also increases the size threshold for turning on byval. A backend fix will be attempted. rdar://12596507 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167416 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05On PowerPC64, integer arguments and return values need to be sign- orUlrich Weigand
zero-extended to 64 bits. This information is currently provided to the back end by setting "signext" or "zeroext" attributes. However, this is done only for integer types *smaller* than i32, not for i32 itself. This causes clang to generate code violating the ABI, which results in a failure of the tramp3d-v4 test case (due to calling a system library routine without ABI-required extension). This patch implements custom versions of classifyArgumentType and classifyReturnType for PPC64_SVR4_ABIInfo, which are the same as the default versions except that they also classify "int" and "unsigned int" as types needing extending. This fixed tramp3d-v4 on PowerPC64. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167393 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31ARM AAPCS-VFP: fix tracking of allocated VFP registers.Manman Ren
According to the spec, we can backfill VFP registers that were skipped due to alignment constraints. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167159 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-30ARM AAPCS-VFP: fix handling of homogeneous aggreate.Manman Ren
If HA can only partially fit into VFP registers, we add padding to make sure HA will be on stack and later VFP CPRCs will be on stack as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167058 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-26This patch addresses a 64-bit PowerPC ELF ABI compatibility issue withBill Schmidt
varargs parameter passing. A strict reading of the ABI indicates that any argument with alignment greater than 8 may require skipping doublewords in the parameter save area to align the argument, and hence require skipping GPRs. In practice, this is not done by GCC. The alignment restriction is used for internal alignment of a structure, but a structure with 16-byte alignment, for example, is not itself 16-byte aligned in the parameter save area. Although this is messy, it has become the de facto standard used in building existing libraries. My initial varargs support followed the ABI language, but not the de facto standard. Running the GCC compatibility test suite exposed this issue, and indeed showed that LLVM didn't pass parameters self-consistently with my original logic. Removing the additional alignment logic allows the affected tests to now pass. I modified the ppc64-varargs-struct.c test case to remove the existing test for generation of alignment code, which is no longer appropriate. Built and tested on powerpc64-unknown-linux-gnu with no new regressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166805 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-25Modify the targets to set appropriate calling convention defaults and C ↵David Tweed
variables when using a gnueabihf or aapcs-vfp target. Tested by me and Wei-Ren Chen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166679 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24Add padding inreg registers to cause llvm to skip ecx when needed withRafael Espindola
the x86_fastcallcc calling convention. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166538 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24Add inreg markers with the x86_fastcallcc calling convention.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166537 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-23Don't try to use inreg with 0 sized structs. Thanks to Eli for reporting theRafael Espindola
regression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166461 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-20Move private classes into anonymous namespaces.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166377 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-19Fix handling of the regparm attribute in the presence of classes with copyRafael Espindola
constructors. When I first moved regparm support to TargetInfo.cpp I tried to isolate it in classifyArgumentTypeWithReg, but it is actually a lot easier to flip the code around and check for regparm at the end of the decision tree. Without this refactoring classifyArgumentTypeWithReg would have to duplicate the logic about when to use non-byval indirect arguments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166266 91177308-0d34-0410-b5e6-96231b3b80d8
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
2012-10-16ARM ABI: fix ABI alignment issues in varargs.Manman Ren
We generalize r166040 to handle ABI alignment issues for all types. rdar://12439123 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166052 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16ARM ABI: passing illegal vector types as varargs.Manman Ren
We expand varargs in clang and the call site is handled in the back end, it is hard to match exactly how illegal vectors are handled in the backend. Therefore, we legalize the illegal vector types in clang: if (Size <= 32), legalize to i32. if (Size == 64), legalize to v2i32. if (Size == 128), legalize to v4i32. if (Size > 128), use indirect. rdar://12439123 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166043 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16ARM ABI: fix ABI alignment issues when passing legal vector types as varargs.Manman Ren
We create an aligned temporary space and copy the content over from ap.cur to the temporary space. This is necessary if the natural alignment of the type is greater than the ABI alignment. rdar://12439123 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166040 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
2012-10-14Use the Builder to create the stack alignment attribute.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165888 91177308-0d34-0410-b5e6-96231b3b80d8
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