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path: root/lib/CodeGen/CGExprConstant.cpp
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2011-03-17Politely inform GCC that we will never fall off the end of that switch.Matt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127783 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-15Reorganize the emission of (unfoldable) constant casts a bit, andJohn McCall
make sure that upcasts of member pointer types are covered as constants. Fixed rdar://problem/9130221 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127702 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-15Introduce a CharUnits FieldOffsetInChars variable in AppendField() toKen Dyck
replace some uses of FieldOffsetInBytes. The remaining uses of FieldOffsetInBytes will be replaced once NextFieldOffsetInBytes is converted to CharUnits. No change in functionality intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127641 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-12Use CharUnits for argument passed to AppendPadding() from AppendBitField().Ken Dyck
No change in functionality intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127538 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11Change parameter to AppendPadding from bytes to CharUnits. No change inKen Dyck
functionality intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127513 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11Convert the RecordSize parameter of AppendTailPadding() to CharUnits toKen Dyck
avoid converting to bits and back again. No change in functionality intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127455 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02Only emit string initializers in-place if types match. Fixes PR9373.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126883 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17improve support for big endian targets, fixing PR8171, patchChris Lattner
by Heikki Kultala! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125784 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-15Perform zero-initialization of virtual base classes when emitting John McCall
a zero constant for a complete class. rdar://problem/8424975 To make this happen, track the field indexes for virtual bases in the complete object. I'm curious whether we might be better off making CGRecordLayoutBuilder *much* more reliant on ASTRecordLayout; we're currently duplicating an awful lot of the ABI layout logic. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125555 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-15update for ConstantVector API change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125538 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14revert my ConstantVector patch, it seems to have made the llvm-gccChris Lattner
builders unhappy. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125505 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14update for ConstantVector::get API change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125488 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11Add a helper function, ASTContext::toBits(), that converts sizes inKen Dyck
CharUnits to sizes in bits, and use it to tidy up the places where the conversion was done explicitly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125332 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09Convert RecordLayout::Size to CharUnits from bits. No changes toKen Dyck
functionality intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125156 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03More capturing of 'this': implicit member expressions. Getting thatJohn McCall
right for anonymous struct/union members led to me discovering some seemingly broken code in that area of Sema, which I fixed, partly by changing the representation of member pointer constants so that IndirectFieldDecls aren't expanded. This led to assorted cleanups with member pointers in CodeGen, and while I was doing that I saw some random other things to clean up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124785 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() andJay Foad
zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method trunc(), to be const and to return a new value instead of modifying the object in place. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121121 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-22Refactor the null-initialization for record types and make it handle bases ↵Anders Carlsson
that aren't i8 arrays. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119980 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-31Rename getBaseClassOffset to getBaseClassOffsetInBits and introduce a ↵Anders Carlsson
getBaseClassOffset which returns the offset in CharUnits. Do the same thing for getVBaseClassOffset. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117881 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-15Death to blocks, or at least the word "block" in one particular obnoxiouslyJohn McCall
ambiguous context. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116567 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31Teach IR generation to return 'this' from constructors and destructorsJohn McCall
under the ARM ABI. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112588 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
2010-08-23Abstract 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
2010-08-22Go 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
2010-08-22Experiment 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
2010-08-22Abstract 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
2010-08-22Detabify.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111768 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
2010-08-07Store inheritance paths after CastExprs instead of inside them.John McCall
This takes some trickery since CastExpr has subclasses (and indeed, is abstract). Also, smoosh the CastKind into the bitfield from Expr. Drops two words of storage from Expr in the common case of expressions which don't need inheritance paths. Avoids a separate allocation and another word of overhead in cases needing inheritance paths. Also has the advantage of not leaking memory, since destructors for AST nodes are never run. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110507 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-17Fix crash initializing a bit-field with a non-constant in a place where weEli Friedman
try to evaluate the initializer as a constant. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108632 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-05fix PR7564 a cast where the bitfield struct init codeChris Lattner
wasn't handling array padding elements right. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107621 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-05AppendBitField really can never fail, so return its return value. Chris Lattner
Everyone knows that no bugs are ever possible with bitfields. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107620 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
2010-06-03Don't try to explicitly zero out bit-fields.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105391 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-30Fix for PR7040: Don't try to compute the LLVM type for a function where itEli Friedman
isn't possible to compute. This patch is mostly refactoring; the key change is the addition of the code starting with the comment, "Check whether the function has a computable LLVM signature." The solution here is essentially the same as the way the vtable code handles such functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105151 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27When null-initializing bases with data member pointers, don't assert on ↵Anders Carlsson
virtual bases. Just initialize them to null. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104868 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-18Correctly initialize bases with member pointers. This should fix PR6441 but ↵Anders Carlsson
that test case is a bit weird and I'd like to investigate further before closing that bug. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104025 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Move ContainsPointerToDataMember to CodeGenTypes. No functionality change.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103792 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-03When computing the address of a virtual member function pointer, use the ↵Anders Carlsson
pointer width instead of hardcoding for 64-bit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102921 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-24Get rid of the old GetNonVirtualBaseClassOffset and change all call sites to ↵Anders Carlsson
use the new version. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102274 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-18recommit r101568 to fix PR6766Nuno Lopes
as a side-effect, remove two FIXMEs now fixed git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101726 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Vtable -> VTable renames across the board.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101666 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17revert r101568, which miscompiles this testcase, distilled from ldecod:Chris Lattner
void exit_picture() { char yuv_types[4][6]= {"4:0:0","4:2:0","4:2:2","4:4:4"}; foo(yuv_types); } git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101623 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16fix PR6766: codegen of var initialized with wide charNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101568 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16fix a bogus assertion exposed by a recent change: packing theChris Lattner
struct may cause it to shrink more than one byte. Before my recent changes we compiled the new test into: %0 = type { [6 x i8] } @x = global %0 { [6 x i8] undef }, align 2 ; <%0*> [#uses=0] which is obviously bogus. Now we compile it into: %0 = type <{ i32, i8, i8 }> @x = global %0 zeroinitializer, align 2 ; <%0*> [#uses=0] Where the last byte only is tail padding. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101536 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16emit padding as undef values, take 2Nuno Lopes
merge also a few tests I had here for this feature, and FileCheck'ize one file git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101535 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Rework the ConstStructBuilder code to emit missing initializerChris Lattner
elements with explicit zero values instead of with tail padding. On an example like this: struct foo { int a; int b; }; struct foo fooarray[] = { {1, 2}, {4}, }; We now lay this out as: @fooarray = global [2 x %struct.foo] [%struct.foo { i32 1, i32 2 }, %struct.foo { i32 4, i32 0 }] instead of as: @fooarray = global %0 <{ %struct.foo { i32 1, i32 2 }, %1 { i32 4, [4 x i8] zeroinitializer } }> Preserving both the struct type of the second element, but also the array type of the entire thing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101155 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13move a bunch of ConstStructBuilder methods out of line.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101152 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12fix PR6660/6168: emit padding as zeros instead of undef. Because Chris Lattner
trailing fields may not be represented in initializer lists, they are being handled as padding and those fields *must* be zero initialized. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101067 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-31IRGen: Move the auxiliary data structures tracking AST -> LLVM mappings out ↵Daniel Dunbar
of CodeGenTypes, to per-record CGRecordLayout structures. - I did a cursory check that this was perf neutral, FWIW. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99978 91177308-0d34-0410-b5e6-96231b3b80d8
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