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2008-11-12Rename ?: operator blocks to cond.true and cond.false (I don't knowDaniel Dunbar
what "cond.?" means, and this avoids quoting). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59128 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Comment/indentation fix.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59127 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Lower ?: into select when the selected values are cheap and side-effect-free.Chris Lattner
This cuts another 200 lines off expr.ll, forming 23 selects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59124 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12emit better codegen for ||/&&, shrinking expr.ll by another 240 lines.Chris Lattner
This happens for stuff like this: x = cond1 || cond2 || cond3 || cond4; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59123 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12use ConstantFoldsToSimpleInteger instead of code emission to doChris Lattner
constant folding. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59121 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12IRgen improvements on unreachable code:Daniel Dunbar
- Split out "simple" statements which can easily handle IR generation when there is no insert point. These are generally statements which start by emitting a new block or are only containers for other statements. - This fixes a regression in emitting dummy blocks, notably for case statements. - This also fixes spurious emission of a number of debug stoppoint intrinsic instructions. Remove unneeded sw.body block, just clear the insertion point. Lift out CodeGenFunction::EmitStopPoint which calls into the CGDebugInfo class when generating debug info. Normalize definitions of Emit{Break,Continue}Stmt and usage of ErrorUnsupported. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59118 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Handle Unary ! in EmitBranchOnBoolExpr, so that we can efficientlyChris Lattner
codegen stuff like "if (!(X && Y))" git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59115 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Use EmitBranchOnBoolExpr in VisitConditionalOperator. ThisChris Lattner
shrinks code yet again by a bit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59114 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Move EmitBranchOnBoolExpr and ConstantFoldsToSimpleInteger toChris Lattner
CodeGenFunction.cpp. Change VisitConditionalOperator to use constant fold instead of codegen'ing a constant conditional. Change ForStmt to use EmitBranchOnBoolExpr, this shrinks expr.c very slightly to 40239 lines. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59113 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Make emission of 'if' conditions much more sophisticated when weChris Lattner
have a condition that is an &&/||. Before we used to compile things like this: int test() { if (x && y) foo(); else bar(); } into: %0 = load i32* @x ; <i32> [#uses=1] %1 = icmp ne i32 %0, 0 ; <i1> [#uses=1] br i1 %1, label %land_rhs, label %land_cont land_rhs: ; preds = %entry %2 = load i32* @y ; <i32> [#uses=1] %3 = icmp ne i32 %2, 0 ; <i1> [#uses=1] br label %land_cont land_cont: ; preds = %land_rhs, %entry %4 = phi i1 [ false, %entry ], [ %3, %land_rhs ] ; <i1> [#uses=1] br i1 %4, label %ifthen, label %ifelse ifthen: ; preds = %land_cont %call = call i32 (...)* @foo() ; <i32> [#uses=0] br label %ifend ifelse: ; preds = %land_cont %call1 = call i32 (...)* @bar() ; <i32> [#uses=0] br label %ifend ifend: ; preds = %ifelse, %ifthen Now we turn it into the much more svelte code: %0 = load i32* @x ; <i32> [#uses=1] %1 = icmp ne i32 %0, 0 ; <i1> [#uses=1] br i1 %1, label %land_lhs_true, label %ifelse land_lhs_true: ; preds = %entry %2 = load i32* @y ; <i32> [#uses=1] %3 = icmp ne i32 %2, 0 ; <i1> [#uses=1] br i1 %3, label %ifthen, label %ifelse ifthen: ; preds = %land_lhs_true %call = call i32 (...)* @foo() ; <i32> [#uses=0] br label %ifend ifelse: ; preds = %land_lhs_true, %entry %call1 = call i32 (...)* @bar() ; <i32> [#uses=0] br label %ifend ifend: ; preds = %ifelse, %ifthen Note the lack of a phi node. This shrinks the -O0 .ll file for 176.gcc/expr.c from 43176 to 40267 lines. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59111 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Clean up some code to use isZero instead of calling getZExtValue.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59103 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Use createBasicBlock here too.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59095 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12Disable generation of basic block names in NDEBUG mode.Daniel Dunbar
Revert to enabling generation of instruction names when not in NDEBUG mode. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59094 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11Rework IRgen invariant w.r.t. current insert point.Daniel Dunbar
- EmitStmt is no longer required to finish with a current insertion point defined (i.e. it does not need to make dummy blocks). Instead, it can clear the insertion point in the builder which indicates that the current insertion point is unreachable. - CodeGenFunction provides HaveInsertPoint and EnsureInsertPoint which respectively test if there is an insert point and ensure an insertion point exists (by making a dummy block). - Clearly mark functions in CodeGenFunction which can be called with no insertion point defined. Currently this is a limited set, and EmitStmt simply EnsureInsertPoint()s before emitting subsequent IR. Remove EmitDummyBlock, which is no longer needed. Clients who haven't already cleared the insertion point (typically via EmitBranch) can do so by hand. Remove isDummyBlock, which has effectively been renamed to HaveInsertPoint. The main thrust of this change is that we no longer have create dummy blocks just to destroy them a short time later in EmitBlock in the common case that there is no unreachable code following something like a goto. Additionally, this means that we are not using the hokey condition in isDummyBlock that a block without a name is a dummy block. Guess how well that works when we never emit block names! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59089 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11Change EmitBranch to always clear the insert point to clarify irgenDaniel Dunbar
invariants. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59085 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11Emit debug region end in unified return block.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59081 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11Codegen support for fastcall & stdcall CC.Anton Korobeynikov
Patch by Ilya Okonsky! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59080 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11Try to not emit the dead side of ?: if the condition is a constant.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59061 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11Introduce a single AST node SizeOfAlignOfExpr for all sizeof and alignof ↵Sebastian Redl
expressions, both of values and types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59057 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11Add CodeGenFunction::EmitBranch.Daniel Dunbar
- Emits an unconditional branch, with extra logic to avoid generating spurious branches out of dummy blocks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59037 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11short circuit && and || when possible. This substantially reducesChris Lattner
the size of the -O0 output on some cases. For example, on expr.c from 176.gcc, it shrinks the .ll file from 43164 to 42835 lines, and removed references to two external symbols. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59034 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11Make codegen smart enough to not emit the dead side of an if whoseChris Lattner
condition is a constant. This shrinks -O0 codegen by quite a bit on some cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59033 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11implement debug info for typeof()Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59032 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11Add CodeGenFunction::EmitDummyBlock for marking places where we makeDaniel Dunbar
"dummy" blocks (blocks just used to make sure we have a place to dump code to). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59022 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11Remove CodeGenFunction::StartBlock.Daniel Dunbar
- Was confusing and only used in one small part of the code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59020 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11Centralize basic block creation in CodeGenFunction::createBasicBlock.Daniel Dunbar
- No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59017 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-10don't preserve names on IR instructions. This matches llvm-gcc's behavior andChris Lattner
speeds up the compiler by ~8% at -emit-llvm -O0. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58977 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-10Fix even more bugs in debug info support:Chris Lattner
1. emit proper debug info for forward decls of structs. 2. emit DW_TAG_member nodes around members of a field like llvm-gcc does. This slows down debug info generation, but is required for correctness. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58973 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-10reimplement debug info generation in terms of DebugInfo.h instead ofChris Lattner
using MachineModuleInfo. This runs at about the same speed as the old code, but fixes a bunch of bugs and is simpler and shorter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58971 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-09Support named operands in inline asm statements.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58940 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-08Avoid redundant cast<>s / simplify type dispatch.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58892 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-08"Fix" PR3021, don't crash on generating record types when we can'tDaniel Dunbar
generate the type of a member. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58889 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-04LinkageSpecDecl is c++ specific, move it to DeclCXXChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58704 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-04Add a new expression class, ObjCSuperExpr, to handle the Objective-C ↵Douglas Gregor
'super'. Remove ObjCThis from PredefinedExpr git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58698 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-04Implement lowering of va_arg in clang directly. (This is 32-bit X86 only for ↵Anders Carlsson
now). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58681 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-04Fix bug in va_copyAnders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58680 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-03privatize some methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58602 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-01Move IRBuilder type definition to common file.Daniel Dunbar
- No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58546 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-31Made the mechanism of defining preprocessor defs for maxint, ptrdiff_t, wcharSanjiv Gupta
etc more generic. For some targets, long may not be equal to pointer size. For example: PIC16 has int as i16, ptr as i16 but long as i32. Also fixed a few build warnings in assert() functions in CFRefCount.cpp, CGDecl.cpp, SemaDeclCXX.cpp and ParseDeclCXX.cpp. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58501 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-31Debug info: Bug fix, function types should always include the returnDaniel Dunbar
type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58497 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-31Quick fix for PR2950, infinite loop generating debug info forDaniel Dunbar
recursive types. - Style will be clean up in further patches. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58490 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-31Formatting tweaks.Daniel Dunbar
- No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58488 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-29NeXT: Emit protocol objects lazily.Daniel Dunbar
- That is, the metadata for a protocol is only emitted if that protocol is actually used in the translation unit. This is important because Objective-C headers frequently contain a large number of protocol definitions, only a few of which will be used in any given file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58400 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-29Fix for PR2966: va_start/va_end use the *address* of the Eli Friedman
va_list, not the value. Patch fixes an assert on x86-64 and a wrong-code bug on x86. I'm not completely sure, but I think it's a regression from r58306. Does anyone run regression tests regularly on x86-64? The crash should have been picked up there. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58366 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-28Don't run the verifier as part of IRgen, this is now down (per module)Daniel Dunbar
in the driver (this means we no longer run the verifier per function, however). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58307 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-28Add attribute always_inline support.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58304 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-26make codegen reject initializes with designators, like this:Chris Lattner
t.c:1:13: error: cannot codegen this designators yet int a[10] = {2, 4, [8]=9, 10}; ^~~~~~~~~~~~~~~~~ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58220 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-26CMake: Builds and installs clang binary and libs (no docs yet). ItOscar Fuentes
must be under the `tools' subdirectory of the LLVM *source* tree. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58180 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-24Don't crash on invalid source locations inDaniel Dunbar
CGDebugInfo::getOrCreateCompileUnit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58081 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-24Map compilation units using FileEntry pointers instead ofDaniel Dunbar
FileIDs. This seems better conceptually and lets the SourceManager handle details of mapping the location to a file ID. - In practice, fixes an assert because this code wasn't using getPhysicalLoc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58055 91177308-0d34-0410-b5e6-96231b3b80d8
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