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2004-07-15Improve codegen for the LLVM offsetof/sizeof "operator". Before we compiledChris Lattner
this LLVM function: int %foo() { ret int cast (int** getelementptr (int** null, int 1) to int) } into: foo: mov %EAX, 0 lea %EAX, DWORD PTR [%EAX + 4] ret now we compile it into: foo: mov %EAX, 4 ret This sequence is frequently generated by the MSIL front-end, and soon the malloc lowering pass and Java front-ends as well.. -Chris git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14834 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14You cannot pass functions by value, what does that even mean??Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14833 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14this "feature" is goneChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14832 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14This is logically part of the last patch. Just more really horrible codeChris Lattner
that is made unnecessary by it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14831 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14** Finally DeclareNewGlobalValue is dead!Chris Lattner
* Simplify a lot of code because type's cannot be in function symbol tables * Fix memory leaks in handling of redefined function prototypes * Don't use SymbolTable directly for stuff that we can go through the Module for. * Fix some minor bugs on obscure testcases like: test/Feature/globalredefinition.ll * Do not create GlobalVariable objects for forward referenced Functions! * When forward referencing a function in a constant expression, do not create a placeholder, add a bunch of references to it, then turn around and replaceAllUsesOfWith on it with a new global, deleting the placeholder. Instead, when we find the real definition of the global, just use the placeholder instead of creating a new object. This substantially simplifies the asmwriter and should even speed it up on cases heavy in constantexprs (like C++, Java, MSIL)... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14830 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14New, horrible, testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14829 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14* Fairly substantial change. Instead of creating new globalvariables, thenChris Lattner
replaceAllUsesWith'ing any forward references, just use the forward reference if it exists. This introduces GetForwardRefForGlobal, which will eventually completely replace the horrible DeclareNewGlobalValue function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14828 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Fold setValueNameMergingDuplicates into ParseGlobalVariable, allowing usChris Lattner
to substantially simplify the result. In particular, we no longer create GlobalVariables and then immediately destroy them when they are duplciate definitions. The real point of this patch though is that it gets us closer to the DeclareNewGlobalValue calls... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14827 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Actually set the endian/pointersize flags on the module being read in!Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14826 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Simplify logic.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14825 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Make PATypeHolder and friends return non-const pointers to the types theyChris Lattner
hold. Because types are basically immutable anyway, they should not be referenced as "const Type*" everywhere. Just "Type*" should suffice! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14824 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Fix a regression from last night. Apparently the CFE is broken and outputsChris Lattner
functions multiple times, expecting them to be merged. This should be fixed in the CFE, then here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14823 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Make sure MTSPR instruction is inserted into the BasicBlockMisha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14822 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Implement new helper methods for creating two-index GEP instructionsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14821 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14* Change code to use a static_cast instead of reinterpret_castChris Lattner
* Add comments * Add two new gep ctors for the very common case of creating a two operand GEP instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14820 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Don't define the same register twice when loading a ConstantPointerRef to a regMisha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14819 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14* Fix multiplication by powers of two and otherwiseMisha Brukman
* Clarify variable name (StoreInst SI instead of LI) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14818 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Pull out code shared between GV forward-decl and definition processing.Chris Lattner
This gives us only a single call site for setValueNameMergingDuplicates. The next stage is the start merging them together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14811 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Simplify code. Do not allow functions to be redefined more than once.Chris Lattner
Since the stupid '%X = const int 4' thing is gone, we can now simplify setValueNameMergingDuplicates a bit more. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14810 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Remove a gross and crufty "feature" that was never documented and doesn't work.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14809 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Finegrainify namespacificationChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14808 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Revamp handling of labels. In particular, if we create a forward referenceChris Lattner
for a basic block, use it when the block is defined instead of deleting it and creating a new one. Also, only create at most ONE forward reference for any block, instead of one for each forward reference. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14807 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Add Machine-CFG edges to SparcV9 MachineBasicBlocks.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14806 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-14Split the basic block handling case out of getVal into getBBVal.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14805 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13Make Argument::print more resilient to non-verifiable IRChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14801 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13Catch aggregates passed by value sooner rather than later.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14800 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13* Specify that FP arith options have 3 operandsMisha Brukman
* Correctly load FP constants from the constant pool, should be refactored git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14799 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13Actually, use an exception to stop verification. This gives us much betterChris Lattner
error messages because verification stops at the first error. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14794 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13There is no reason to abort and print a stack trace if there is a verificationChris Lattner
error. Just print the message like a good little tool. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14793 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13Fine-grainify namespacification, prune #includeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14792 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13Fix typeo and refactor bb productions to make it possible for us to reuse anyChris Lattner
forward reference blocks if they have been created (instead of creating a new block, replaceAllUsesOfWith, then nuking the placeholder). This is not yet implemented. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14791 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13Eliminate some mega-cruft here. There is no reason to DERIVE FROM IR CLASSESChris Lattner
just to keep track of some per-object state! Gaah! Whoever wrote this stuff... oh wait, that would be me. Never mind. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14790 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13Inline the now trivial setValueNameInternal function into both callersChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14789 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13Now that basic blocks are eagerly inserted into the Function, we can useChris Lattner
the funciton symbol table to check for conflicts instead of having to keep a shadow named LocalSymtab. Totally eliminate LocalSymtab. Verified that this did not cause a regression on the testcase for PR107. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14788 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13A couple of substantial cleanup fixes:Chris Lattner
1. Split setValueName into two separate functions, one that is only used at function scope and doesn't have to deal with duplicates, and one that can be used either at global or function scope but that does deal with conflicts. Conflicts were only in there because of the crappy old CFE and probably should be entirely eliminated. 2. Insert BasicBlock's into the parent functions when they are created instead of when they are complete. This effects name lookup (for the better), which will be exploited in the next patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14787 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13Fix warning on SparcV9, where sizeof (int) != sizeof (void *).Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14786 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13Replace a bunch of complex ConstantPointerRef referring code with simpleChris Lattner
code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14785 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13Make tblgen not try to be smart. This is better handled in makefiles ifChris Lattner
at all. Patch contributed by Vladimir Prus! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14784 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-13Factor some code to handle "load (constantexpr cast foo)" just likeChris Lattner
"load (cast foo)". This allows us to compile C++ code like this: class Bclass { public: virtual int operator()() { return 666; } }; class Dclass: public Bclass { public: virtual int operator()() { return 667; } } ; int main(int argc, char** argv) { Dclass x; return x(); } Into this: int %main(int %argc, sbyte** %argv) { entry: call void %__main( ) ret int 667 } Instead of this: int %main(int %argc, sbyte** %argv) { entry: %x = alloca "struct.std::bad_typeid" ; <"struct.std::bad_typeid"*> [#uses=3] call void %__main( ) %tmp.1.i.i = getelementptr "struct.std::bad_typeid"* %x, uint 0, uint 0, uint 0 ; <int (...)***> [#uses=1] store int (...)** getelementptr ([3 x int (...)*]* %vtable for Bclass, int 0, long 2), int (...)*** %tmp.1.i.i %tmp.3.i = getelementptr "struct.std::bad_typeid"* %x, int 0, uint 0, uint 0 ; <int (...)***> [#uses=1] store int (...)** getelementptr ([3 x int (...)*]* %vtable for Dclass, int 0, long 2), int (...)*** %tmp.3.i %tmp.5 = load int ("struct.std::bad_typeid"*)** cast (int (...)** getelementptr ([3 x int (...)*]* %vtable for Dclass, int 0, long 2) to int ("struct.std::bad_typeid"*)**) ; <int ("struct.std::bad_typeid"*)*> [#uses=1] %tmp.6 = call int %tmp.5( "struct.std::bad_typeid"* %x ) ; <int> [#uses=1] ret int %tmp.6 ret int 0 } In order words, we now resolve the virtual function call. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14783 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-12Correctly load FP constants out of the constant pool.Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14782 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-12Apple's MacOS X is another OS which does not provide alloca() via <alloca.h>Misha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14781 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-12Implement getModuleMatchQuality and getJITMatchQuality() for PowerPCMisha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14780 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-12* Tabs to spacesMisha Brukman
* Delete extra blank lines git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14779 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-12New open proj: C/C++ compiler in C++, with link to Ed Willink's C++ yacc grammarMisha Brukman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14778 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-12Add a helper method. The StructType element is completely redundant in mostChris Lattner
cases git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14777 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-12implement new helper methodChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14776 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-12Fix unused var warningChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14775 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-12Fix a really nasty logic error that VC noticed.Chris Lattner
Reid, this might matter to you :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14774 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-12Add a missing #includeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14773 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-12Fix warning compiling with VC++Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14772 91177308-0d34-0410-b5e6-96231b3b80d8
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