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2010-07-28use Get8ByteTypeAtOffset for the return value path as well so weChris Lattner
don't get errors similar to PR7714 on the return path. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109689 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-28refactor the autosizing code, eliminating duplicationChris Lattner
and making Get8ByteTypeAtOffset always succeed and documented. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109685 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-28fix PR7714 by not referencing off the end of a struct when passed by value inChris Lattner
x86-64 abi. This also improves codegen as well. Some refactoring is needed of this code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109681 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15CodeGen: Tweak ABI handling for Minix, patch by Kees van Reeuwijk!Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108423 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07add driver support for minix, patch by Kees van ReeuwijkChris Lattner
from PR7583 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107788 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30Reapply:Chris Lattner
r107173, "fix PR7519: after thrashing around and remembering how all this stuff" r107216, "fix PR7523, which was caused by the ABI code calling ConvertType instead" This includes a fix to make ConvertTypeForMem handle the "recursive" case, and call it as such when lowering function types which have an indirect result. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107310 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30Revert r107173, "fix PR7519: after thrashing around and remembering how all ↵Daniel Dunbar
this stuff", it broke bootstrap. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107232 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29fix PR7519: after thrashing around and remembering how all this stuffChris Lattner
works, the fix is quite simple: just make sure to call ConvertTypeRecursive when the function type being lowered is in the midst of ConvertType. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107173 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29Change X86_64ABIInfo to have ASTContext and TargetData ivars toChris Lattner
avoid passing ASTContext down through all the methods it has. When classifying an argument, or argument piece, as INTEGER, check to see if we have a pointer at exactly the same offset in the preferred type. If so, use that pointer type instead of i64. This allows us to compile A function taking a stringref into something like this: define i8* @foo(i64 %D.coerce0, i8* %D.coerce1) nounwind ssp { entry: %D = alloca %struct.DeclGroup, align 8 ; <%struct.DeclGroup*> [#uses=4] %0 = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1] store i64 %D.coerce0, i64* %0 %1 = getelementptr %struct.DeclGroup* %D, i32 0, i32 1 ; <i8**> [#uses=1] store i8* %D.coerce1, i8** %1 %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1] %tmp1 = load i64* %tmp ; <i64> [#uses=1] %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i8**> [#uses=1] %tmp3 = load i8** %tmp2 ; <i8*> [#uses=1] %add.ptr = getelementptr inbounds i8* %tmp3, i64 %tmp1 ; <i8*> [#uses=1] ret i8* %add.ptr } instead of this: define i8* @foo(i64 %D.coerce0, i64 %D.coerce1) nounwind ssp { entry: %D = alloca %struct.DeclGroup, align 8 ; <%struct.DeclGroup*> [#uses=3] %0 = insertvalue %0 undef, i64 %D.coerce0, 0 ; <%0> [#uses=1] %1 = insertvalue %0 %0, i64 %D.coerce1, 1 ; <%0> [#uses=1] %2 = bitcast %struct.DeclGroup* %D to %0* ; <%0*> [#uses=1] store %0 %1, %0* %2, align 1 %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1] %tmp1 = load i64* %tmp ; <i64> [#uses=1] %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i8**> [#uses=1] %tmp3 = load i8** %tmp2 ; <i8*> [#uses=1] %add.ptr = getelementptr inbounds i8* %tmp3, i64 %tmp1 ; <i8*> [#uses=1] ret i8* %add.ptr } This implements rdar://7375902 - [codegen quality] clang x86-64 ABI lowering code punishing StringRef git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107123 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29plumb preferred types down into X86_64ABIInfo::classifyArgumentType,Chris Lattner
no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107115 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29Pass the LLVM IR version of argument types down into computeInfo.Chris Lattner
This is somewhat annoying to do this at this level, but it avoids having ABIInfo know depend on CodeGenTypes for a hint. Nothing is using this yet, so no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107111 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-28pass/return structs of char and short as i8/i16 to avoidChris Lattner
aweful through-memory coersion, just like we do for i32 now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107078 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-28more tidying up.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107076 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-28random acts of tidying.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107050 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-28X86-64:Chris Lattner
pass/return structs of float/int as float/i32 instead of double/i64 to make the code generated for ABI cleaner. Passing in the low part of a double is the same as passing in a float. For example, we now compile: struct DeclGroup { float NumDecls; }; float foo(DeclGroup D); void bar(DeclGroup *D) { foo(*D); } into: %struct.DeclGroup = type { float } define void @_Z3barP9DeclGroup(%struct.DeclGroup* %D) nounwind { entry: %D.addr = alloca %struct.DeclGroup*, align 8 ; <%struct.DeclGroup**> [#uses=2] %agg.tmp = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2] store %struct.DeclGroup* %D, %struct.DeclGroup** %D.addr %tmp = load %struct.DeclGroup** %D.addr ; <%struct.DeclGroup*> [#uses=1] %tmp1 = bitcast %struct.DeclGroup* %agg.tmp to i8* ; <i8*> [#uses=1] %tmp2 = bitcast %struct.DeclGroup* %tmp to i8* ; <i8*> [#uses=1] call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 4, i32 4, i1 false) %coerce.dive = getelementptr %struct.DeclGroup* %agg.tmp, i32 0, i32 0 ; <float*> [#uses=1] %0 = load float* %coerce.dive, align 1 ; <float> [#uses=1] %call = call float @_Z3foo9DeclGroup(float %0) ; <float> [#uses=0] ret void } instead of: %struct.DeclGroup = type { float } define void @_Z3barP9DeclGroup(%struct.DeclGroup* %D) nounwind { entry: %D.addr = alloca %struct.DeclGroup*, align 8 ; <%struct.DeclGroup**> [#uses=2] %agg.tmp = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2] %tmp3 = alloca double ; <double*> [#uses=2] store %struct.DeclGroup* %D, %struct.DeclGroup** %D.addr %tmp = load %struct.DeclGroup** %D.addr ; <%struct.DeclGroup*> [#uses=1] %tmp1 = bitcast %struct.DeclGroup* %agg.tmp to i8* ; <i8*> [#uses=1] %tmp2 = bitcast %struct.DeclGroup* %tmp to i8* ; <i8*> [#uses=1] call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 4, i32 4, i1 false) %coerce.dive = getelementptr %struct.DeclGroup* %agg.tmp, i32 0, i32 0 ; <float*> [#uses=1] %0 = bitcast double* %tmp3 to float* ; <float*> [#uses=1] %1 = load float* %coerce.dive ; <float> [#uses=1] store float %1, float* %0, align 1 %2 = load double* %tmp3 ; <double> [#uses=1] %call = call float @_Z3foo9DeclGroup(double %2) ; <float> [#uses=0] ret void } which is this machine code (at -O0): __Z3barP9DeclGroup: subq $24, %rsp movq %rdi, 16(%rsp) movq 16(%rsp), %rdi leaq 8(%rsp), %rax movl (%rdi), %ecx movl %ecx, (%rax) movss 8(%rsp), %xmm0 callq __Z3foo9DeclGroup addq $24, %rsp ret vs this: __Z3barP9DeclGroup: subq $24, %rsp movq %rdi, 16(%rsp) movq 16(%rsp), %rdi leaq 8(%rsp), %rax movl (%rdi), %ecx movl %ecx, (%rax) movss 8(%rsp), %xmm0 movss %xmm0, (%rsp) movsd (%rsp), %xmm0 callq __Z3foo9DeclGroup addq $24, %rsp ret At -O3, it is the difference between this now: __Z3barP9DeclGroup: movss (%rdi), %xmm0 jmp __Z3foo9DeclGroup # TAILCALL vs this before: __Z3barP9DeclGroup: movl (%rdi), %eax movd %rax, %xmm0 jmp __Z3foo9DeclGroup # TAILCALL git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107048 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27finally get around to doing a significant cleanup to irgen:Chris Lattner
have CGF create and make accessible standard int32,int64 and intptr types. This fixes a ton of 80 column violations introduced by LLVMContextification and cleans up stuff a lot. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106977 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26use more efficient type comparison predicates.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106958 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16Change the test for which ABI/CC to use on ARM to be base on the environmentRafael Espindola
(the last argument of the triple). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106131 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16Don't set the calling convention for ARM if it is already the default.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106106 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16Give Type::isIntegralType() an ASTContext parameter, so that itDouglas Gregor
provides C "integer type" semantics in C and C++ "integral type" semantics in C++. Note that I still need to update isIntegerType (and possibly other predicates) using the same approach I've taken for isIntegralType(). The two should have the same meaning, but currently don't (!). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106074 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16Introduce Type::isIntegralOrEnumerationType(), to cover those placesDouglas Gregor
in C++ that involve both integral and enumeration types. Convert all of the callers to Type::isIntegralType() that are meant to work with both integral and enumeration types over to Type::isIntegralOrEnumerationType(), to prepare to eliminate enumeration types as integral types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106071 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-08Fix passing and returning of objects with non trivial copy constructors onRafael Espindola
ARM. Fixes PR7310. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105592 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27Implement __builtin_init_dwarf_reg_size_table and __builtin_dwarf_sp_columnJohn McCall
for 32-bit MIPS processors. Hat-tip to rdivacky for providing gcc dumps on this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104816 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-17IRgen: Remove dead function.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103945 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-17C++/Darwin/i386 ABI: Fix some problems with empty record handling.Daniel Dunbar
- Check bases as part of isEmptyRecord(). - C++ record fields are never empty in the Itanium ABI. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103944 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15C++/ABI/x86_64: Member pointers should be classified as INTEGER.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103843 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15C++/ABI/i386: Member function pointers should be passed by value.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103842 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14C++/Darwin/x86: Teach IRgen it can pass reference types in registers.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103761 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11IRgen/i386/C++: Fix isSingleElementStruct computation for C++ record decls.Daniel Dunbar
- Fixes PR7098. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103514 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21ABI/x86-32 & x86-64: Alignment on 'byval' must be set when when the alignmentDaniel Dunbar
exceeds the minimum ABI alignment. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102019 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21IRgen/x86-32: Factor out getIndirectResult(), to match x86-64 factoring.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102015 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-06fit in 80 colsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100534 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11fix PR6433, crash on va_arg of typedef.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98264 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11Support PPC-32 DWARF EH intrinisics. Thanks to rdivacky for his assistance.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98206 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-06Implement __builtin_dwarf_sp_column for i386 (Darwin and not), x86-64 (all),John McCall
and ARM. Implement __builtin_init_dwarf_reg_size_table for i386 (both) and x86-64 (all). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97859 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24Canonicalize parameter and return types before computing ABI info. EliminatesJohn McCall
a common source of oddities and, in theory, removes some redundant ABI computations. Also fixes a miscompile I introduced yesterday by refactoring some code and causing a slightly different code path to be taken that didn't perform *parameter* type canonicalization, just normal type canonicalization; this in turn caused a bit of ABI code to misfire because it was looking for 'double' or 'float' but received 'const float'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97030 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-17implement EmitVAArg. pretty much the same way other targets do.Sanjiv Gupta
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96446 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-15Uniformize the names of type predicates: rather than having isFloatTy andDuncan Sands
isInteger, we now have isFloatTy and isIntegerTy. Requested by Chris! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96224 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-13Emit the 'alignstack' LLVM function attribute when we encounter a functionCharles Davis
marked 'force_align_arg_pointer'. Almost there; now all I need to do is finish up the backend. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96100 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02Implement promotion for enumeration types.Douglas Gregor
WHAT!?! It turns out that Type::isPromotableIntegerType() was not considering enumeration types to be promotable, so we would never do the promotion despite having properly computed the promotion type when the enum was defined. Various operations on values of enum type just "worked" because we could still compute the integer rank of an enum type; the oddity, however, is that operations such as "add an enum and an unsigned" would often have an enum result type (!). The bug actually showed up as a spurious -Wformat diagnostic (<rdar://problem/7595366>), but in theory it could cause miscompiles. In this commit: - Enum types with a promotion type of "int" or "unsigned int" are promotable. - Tweaked the computation of promotable types for enums - For all of the ABIs, treat enum types the same way as their underlying types (*not* their promotion types) for argument passing and return values - Extend the ABI tester with support for enumeration types git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95117 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-01ARM/APCS: Fix classification of small complex integer types as "integer like".Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95030 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-01ARM/APCS: Pass Complex types following llvm-gcc.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95029 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-29ARM/APCS ABI: Fix some problems with bit-fields in structures. After rereadingDaniel Dunbar
the ABI spec, this turns out to simplify the code. We still have some annoying code which mismatches the spec with regard to empty structures. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94796 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-27Structs and classes with non-trivial destructors or copy constructors should ↵Anders Carlsson
be passed indirectly in the 32-bit ABI. Fixes PR6094. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94656 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-22Eliminate some Clang warningsDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94177 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-10Generalize target weirdness handling having proper layering in mind:Anton Korobeynikov
1. Add helper class for sema checks for target attributes 2. Add helper class for codegen of target attributes As a proof-of-concept - implement msp430's 'interrupt' attribute. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93118 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-10Rename file to generalization in next commitsAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93117 91177308-0d34-0410-b5e6-96231b3b80d8
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