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2008-01-21It turns out that in C++ it is legal to declare functionsDuncan Sands
that return an opaque type by value, as long as you don't call it or provide a body (you can take the address of it). So it is wrong to insist that sret parameters not be an opaque*. And I guess it is really up to codegen to complain if someone tries to call such a function. I'm also removing the analogous check from byval parameters, since I don't see why we shouldn't allow them as long as no-one tries to call the function or give it a body. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46216 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-21Check that sret is only used on pointers to typesDuncan Sands
with a size, like byval. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46207 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-21Be consistent with other attribute methods, andDuncan Sands
check the callee also if it is known. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46206 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-21Move DAG-changing code out of #ifndef NDEBUG.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46204 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-20Make sure the caller doesn't use freed memory.Duncan Sands
Fixes PR1935. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46203 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-20Honour ByVal parameter attribute for name decorationAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46200 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-20Remove Darwin'ismAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46199 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-20Enable PIC codegen on x86-64/linuxAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46198 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-20Initializing an unsigned with ~0UL causes the compilerDuncan Sands
to complain on x86-64 (gcc 4.1). Use ~0U instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46197 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-20Do not generate a FP_ROUND of f64 to f64.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46195 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-19Need to handle any 'nest' parameter before integerDuncan Sands
parameters, since otherwise it won't be passed in the right register. With this change trampolines work on x86-64 (thanks to Luke Guest for providing access to an x86-64 box). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46192 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-19Added FoldingSet style 'profiling' support for APSInt.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46189 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-19Added FoldingSet style 'profiling' support for APInt.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46188 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-19Made 'FoldingSetNodeID' a proper class instead of a nested class inTed Kremenek
'FoldingSetNodeImpl' (previously 'FoldingSetNodeID' was a typedef of 'FoldingSetNodeImpl::NodeID'). Why? Clients can now easily forward declare 'FoldingSetNodeID' without having to include FoldingSet.h. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46187 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-18Implement flt_rounds for PowerPC.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46174 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-18remove extraneous &'s.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46171 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-18get symbolic information for ppc ldbl nodes.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46165 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-18Fix a latent bug exposed by my truncstore patch. We compiled stfiwx-2.ll to:Chris Lattner
_test: fctiwz f0, f1 stfiwx f0, 0, r4 blr instead of: _test: fctiwz f0, f1 stfd f0, -8(r1) nop nop lwz r2, -4(r1) stb r2, 0(r4) blr The former is not correct (stores 4 bytes, not 1). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46161 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-18make a method publicChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46159 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-17Revert the part of 45849 that treated weak globalsDale Johannesen
as weak globals rather than commons. While not wrong, this change tickled a latent bug in Darwin's strip, so revert it for now as a workaround. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46147 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-17Revert the part of 45848 that treated weak globalsDale Johannesen
as weak globals rather than commons. While not wrong, this change tickled a latent bug in Darwin's strip, so revert it for now as a workaround. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46144 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-17Forward progress: crtbegin.c now compiles successfully!Scott Michel
Fixed CellSPU's A-form (local store) address mode, so that all globals, externals, constant pool and jump table symbols are now wrapped within a SPUISD::AFormAddr pseudo-instruction. This now identifies all local store memory addresses, although it requires a bit of legerdemain during instruction selection to properly select loads to and stores from local store, properly generating "LQA" instructions. Also added mul_ops.ll test harness for exercising integer multiplication. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46142 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-17This commit changes:Chris Lattner
1. Legalize now always promotes truncstore of i1 to i8. 2. Remove patterns and gunk related to truncstore i1 from targets. 3. Rename the StoreXAction stuff to TruncStoreAction in TLI. 4. Make the TLI TruncStoreAction table a 2d table to handle from/to conversions. 5. Mark a wide variety of invalid truncstores as such in various targets, e.g. X86 currently doesn't support truncstore of any of its integer types. 6. Add legalize support for truncstores with invalid value input types. 7. Add a dag combine transform to turn store(truncate) into truncstore when safe. The later allows us to compile CodeGen/X86/storetrunc-fp.ll to: _foo: fldt 20(%esp) fldt 4(%esp) faddp %st(1) movl 36(%esp), %eax fstps (%eax) ret instead of: _foo: subl $4, %esp fldt 24(%esp) fldt 8(%esp) faddp %st(1) fstps (%esp) movl 40(%esp), %eax movss (%esp), %xmm0 movss %xmm0, (%eax) addl $4, %esp ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46140 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-17code cleanups, no functionality change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46126 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-17* Introduce a new SelectionDAG::getIntPtrConstant methodChris Lattner
and switch various codegen pieces and the X86 backend over to using it. * Add some comments to SelectionDAGNodes.h * Introduce a second argument to FP_ROUND, which indicates whether the FP_ROUND changes the value of its input. If not it is safe to xform things like fp_extend(fp_round(x)) -> x. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46125 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-17DAE bug fix. Don't lose parameter attributes on vararg arguments.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46113 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-17When a live virtual register is being clobbered by an implicit def, it is ↵Evan Cheng
spilled and the spill is its kill. However, if the local allocator has determined the register has not been modified (possible when its value was reloaded), it would not issue a restore. In that case, mark the last use of the virtual register as kill. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46111 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-17Fix arg promotion to propagate the correct attrs on the calls toChris Lattner
promoted functions. This is important for varargs calls in particular. Thanks to duncan for providing a great testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46108 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-17Replace std::vector<bool> with BitVector.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46104 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16Fixes a nasty dag combiner bug that causes a bunch of tests to fail at -O0.Evan Cheng
It's not safe to use the two value CombineTo variant to combine away a dead load. e.g. v1, chain2 = load chain1, loc v2, chain3 = load chain2, loc v3 = add v2, c Now we replace use of v1 with undef, use of chain2 with chain1. ReplaceAllUsesWith() will iterate through uses of the first load and update operands: v1, chain2 = load chain1, loc v2, chain3 = load chain1, loc v3 = add v2, c Now the second load is the same as the first load, SelectionDAG cse will ensure the use of second load is replaced with the first load. v1, chain2 = load chain1, loc v3 = add v1, c Then v1 is replaced with undef and bad things happen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46099 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16Trampoline support for x86-64. This looks likeDuncan Sands
it should work, but I have no machine to test it on. Committed because it will at least cause no harm, and maybe someone can test it for me! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46098 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16Handle attribute(used) global variables that are i8.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46090 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16Do not mark EH tables no-dead-strip unless theDale Johannesen
associated function is so marked. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46088 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16Fix a ppc long double regression I introduced yesterday due to aChris Lattner
simplification. This fixes automotive-basicmath on PPC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46072 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16merge a few pieces of code that do the store/load to stack Chris Lattner
pattern to use EmitStackConvert now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46066 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16rename ExpandBIT_CONVERT to EmitStackConvert, generalizing Chris Lattner
it to allow it to emit different load and store kinds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46065 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16simplify a bunch of code by using SelectionDAG::CreateStackTemporary Chris Lattner
instead of inlining its body. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46062 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16Change legalizeop of FP_ROUND and FP_EXTEND to not fall throughChris Lattner
into the ANY_EXTEND/ZERO_EXTEND/SIGN_EXTEND code to simplify it. Unmerge the code for FP_ROUND and FP_EXTEND from each other to make each one simpler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46061 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16make it more clear that this predicate only applies to scalar FP types.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46058 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16introduce a isTypeInSSEReg predicate, which allows us to simplifyChris Lattner
some code. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46055 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16My previous commit had an incomplete message, it should have been:Chris Lattner
make the 'fp return in ST(0)' optimization smart enough to look through token factor nodes. THis allows us to compile testcases like CodeGen/X86/fp-stack-retcopy.ll into: _carg: subl $12, %esp call L_foo$stub fstpl (%esp) fldl (%esp) addl $12, %esp ret instead of: _carg: subl $28, %esp call L_foo$stub fstpl 16(%esp) movsd 16(%esp), %xmm0 movsd %xmm0, 8(%esp) fldl 8(%esp) addl $28, %esp ret Still not optimal, but much better and this is a trivial patch. Fixing the rest requires invasive surgery that is is not llvm 2.2 material. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46054 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16make the 'fp return in ST(0)' optimization smart enough to Chris Lattner
look through token factor git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46053 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16various whitespace cleanups, no functionality change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46052 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16Factor the ReachesChainWithoutSideEffects out of dag combiner into Chris Lattner
a public SDOperand::reachesChainWithoutSideEffects method. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46050 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16Do not strip llvm.used values.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46045 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-15Missed file from previous checkin.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46030 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-15Fix and enable EH for x86-64 Darwin. AddsDale Johannesen
ShortenEHDataFor64Bits as a not-very-accurate abstraction to cover all the changes in DwarfWriter. Some cosmetic changes to Darwin assembly code for gcc testsuite compatibility. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46029 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-15Move some calls to getVRegDef higher in the callgraph, so they don't get ↵Owen Anderson
executed as frequently in performance sensitive code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46027 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-15improve compatibility with mingw, patch by Alain FrischChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46026 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-15If someone wants to implement ppc TRAP, they can go for it :)Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46019 91177308-0d34-0410-b5e6-96231b3b80d8
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