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2010-08-25Finally pass "two floats in a 64-bit unit" as a <2 x float> instead ofChris Lattner
as a double in the x86-64 ABI. This allows us to generate much better code for certain things, e.g.: _Complex float f32(_Complex float A, _Complex float B) { return A+B; } Used to compile into (look at the integer silliness!): _f32: ## @f32 ## BB#0: ## %entry movd %xmm1, %rax movd %eax, %xmm1 movd %xmm0, %rcx movd %ecx, %xmm0 addss %xmm1, %xmm0 movd %xmm0, %edx shrq $32, %rax movd %eax, %xmm0 shrq $32, %rcx movd %ecx, %xmm1 addss %xmm0, %xmm1 movd %xmm1, %eax shlq $32, %rax addq %rdx, %rax movd %rax, %xmm0 ret Now we get: _f32: ## @f32 movdqa %xmm0, %xmm2 addss %xmm1, %xmm2 pshufd $16, %xmm2, %xmm2 pshufd $1, %xmm1, %xmm1 pshufd $1, %xmm0, %xmm0 addss %xmm1, %xmm0 pshufd $16, %xmm0, %xmm1 movdqa %xmm2, %xmm0 unpcklps %xmm1, %xmm0 ret and compile stuff like: extern float _Complex ccoshf( float _Complex ) ; float _Complex ccosf ( float _Complex z ) { float _Complex iz; (__real__ iz) = -(__imag__ z); (__imag__ iz) = (__real__ z); return ccoshf(iz); } into: _ccosf: ## @ccosf ## BB#0: ## %entry pshufd $1, %xmm0, %xmm1 xorps LCPI4_0(%rip), %xmm1 unpcklps %xmm0, %xmm1 movaps %xmm1, %xmm0 jmp _ccoshf ## TAILCALL instead of: _ccosf: ## @ccosf ## BB#0: ## %entry movd %xmm0, %rax movq %rax, %rcx shlq $32, %rcx shrq $32, %rax xorl $-2147483648, %eax ## imm = 0xFFFFFFFF80000000 addq %rcx, %rax movd %rax, %xmm0 jmp _ccoshf ## TAILCALL There is still "stuff to be done" here for the struct case, but this resolves rdar://6379669 - [x86-64 ABI] Pass and return _Complex float / double efficiently git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112111 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Fix horrible white space errors.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112067 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25GCC didn't care for my attempt at API compatibility, so brute-force everythingJohn McCall
to the new constants. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112047 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25More incremental progress towards not including Expr.h in Sema.h.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112044 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25IRgen: Fix a horrible bug in pointer to bool conversion, which we were treatingDaniel Dunbar
as a truncation not a comparison to null. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112021 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Expression statements undergo lvalue-to-rvalue conversion in C,John McCall
but not in C++, so don't emit aggregate loads of volatile references in null context in C++. Happens to have been caught by an assertion. We do not get the scalar case right. Volatiles are really broken. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112019 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Fix 'for' loop variables' scope.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112002 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Fix enum size and align. Tested by setvar.exp in gdb testsuite.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111936 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Debug Info: Put full Clang version into the debug info, to make it easier toDaniel Dunbar
identify what version of the compiler was used to build something. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111927 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Emit debug info for enum constants.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111852 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Reinstate the code for emitting an initial debug type for a struct,Dan Gohman
to handle the case where the struct is only forward-declared. In this case, a temporary MDNode is not needed and not desired. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111842 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Support for IRGen of synthesize bitfield ivars inFariborz Jahanian
objc-nonfragile-abi2 (radar 7824380). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111823 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Emit an error noting that Clang does not support code generation forDouglas Gregor
the ternary operator without a left-hand side in C++ (PR7726), from Jean-Daniel Dupas! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111809 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23chandlerc pointed out that ending a line with /\ is not very friendly. :)John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111797 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23fix rdar://8340348, a miscompile of boost that was exposed by r109848.Chris Lattner
That revision started classifying truly empty structs like "Y" and "X" as being NoClass/NoClass and turning them into 'ignore'. The call code turns around and allocates space for the ignored argument with GetUndefRValue. The bug is that GetUndefRValue would return the address as undef, instead of returning an object with a defined address but undefined contents. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111794 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Abstract out everything having to do with member pointers into the ABIJohn McCall
class; they should just be completely opaque throughout IR gen now, although I haven't really audited that. Fix a bug apparently inherited from gcc-4.2 where we failed to null-check member data pointers when performing derived-to-base or base-to-derived conversions on them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111789 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Extract a method to check whether a function is the global placementJohn McCall
operator new[]. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111788 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22Go back to asking CodeGenTypes whether a type is zero-initializable.John McCall
Make CGT defer to the ABI on all member pointer types. This requires giving CGT a handle to the ABI. It's way easier to make that work if we avoid lazily creating the ABI. Make it so. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111786 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22Eliminate a stale assertion. Fixes Clang self-host.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111782 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22When performing value-initialization for a class with a non-trivial,Douglas Gregor
implicitly-defined default constructor, zero-initialize the memory before calling the default constructor. Previously, we would only zero-initialize in the case of a trivial default constructor. Also, simplify the hideous logic that determines when we have a trivial default constructor and, therefore, don't need to emit any call at all. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111779 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22Clean up a very silly use of first-class aggregates.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111777 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22Experiment with using first-class aggregates to represent member functionJohn McCall
pointers. I find the resulting code to be substantially cleaner, and it makes it very easy to use the same APIs for data member pointers (which I have conscientiously avoided here), and it avoids a plethora of potential inefficiencies due to excessive memory copying, but we'll have to see if it actually works. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111776 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22Extract member function pointer comparison and null comparison intoJohn McCall
the ABI code. Implement correct semantics for these on ARM. I believe this completes the implementation of member function pointers on ARM. I think I'm going to switch member function pointers over to be non-aggregates while I have all this in mind. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111774 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22Abstract out member-pointer creation. I'm really unhappy about the currentJohn McCall
duplication between the constant and non-constant paths in all of this. Implement ARM ABI semantics for member pointer constants and conversion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111772 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22Abstract more member-pointerness out.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111771 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22Abstract out member-pointer conversions.John McCall
Pretty much everything having to do with member pointers is ABI-specific. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111770 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22Detabify.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111768 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22Implement the call parts of the member-function-pointer ARM C++ ABI.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111766 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22Extract calls to method pointers out as an ABI routine.John McCall
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111752 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21The ARM C++ ABI is sufficiently different from the Itanium C++ ABI thatJohn McCall
it deserves its own enumerator. Obviously the implementations should closely follow the Itanium ABI except in cases of divergence. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111749 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen: Set the alignment correctly when creating LValue for a decls.Daniel Dunbar
- Fixes PR5598. - Review appreciated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111726 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21CodeGenFunction: Eliminate unused MakeQualifiers() function.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111725 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21Simplify.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111724 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen/CGValue: Give MakeAddrLValue() an alignment argument, and eliminate ↵Daniel Dunbar
old form of MakeAddr(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111723 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen: Move remaining LValue::Set... methods to LValue::set... (non-static) ↵Daniel Dunbar
methods. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111722 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen: Move remaining MakeAddr() calls to MakeAddrLValue().Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111721 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen: The CVR qualifiers in a subobject adjustment should just come from theDaniel Dunbar
field (I think). - Doug, please check. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111720 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen/CGValue: Add getQuals(), so qualifiers can be modified on an LValue.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111719 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen/LValue: Add LValue::setNonGC instead of SetObjCNonGC, for consistency ↵Daniel Dunbar
with isNonGC(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111718 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen: Switch more MakeAddr() users to MakeAddrLValue; this time for calls ↵Daniel Dunbar
which were previously not computing the qualifier list. In most cases, I don't think it matters, but I believe this is conservatively more correct / consistent. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111717 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen: Switch a bunch of trivial MakeAddr calls to use MakeAddrLValue.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111716 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen: Eliminate EmitPredefinedFunctionName(), it doesn't need to be ↵Daniel Dunbar
factored out. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111715 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen: Add an LValue::MakeAddr variant which takes a type and uses that to buildDaniel Dunbar
the qualifiers. Also, add CodeGenFunction::MakeAddrLValue() helper function which passes in the ASTContext. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111714 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21Delete an obsolete comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111711 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen/CGValue: Add alignment to LValue, and use that alignment when ↵Daniel Dunbar
generating lvalue load/stores. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111710 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen/LValue: Rename SetQualifiers() to Initialize().Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111708 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen: Change Emit{Load,Store}OfScalar to take a required Alignment argument andDaniel Dunbar
update callers as best I can. - This is a work in progress, our alignment handling is very horrible / sketchy -- I am just aiming for monotonic improvement. - Serious review appreciated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111707 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21IRgen: Use Ty consistently in this function.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111705 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-20CreateTemporaryType doesn't needs its Context argument.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111688 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-20Introduce a new temporary MDNode concept. Temporary MDNodes areDan Gohman
not part of the IR, are not uniqued, and may be safely RAUW'd. This replaces a variety of alternate mechanisms for achieving the same effect. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111682 91177308-0d34-0410-b5e6-96231b3b80d8
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