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2005-12-23Simplify store(bitconv(x)) to store(x). This allows us to compile this:Chris Lattner
void bar(double Y, double *X) { *X = Y; } to this: bar: save -96, %o6, %o6 st %i1, [%i2+4] st %i0, [%i2] restore %g0, %g0, %g0 retl nop instead of this: bar: save -104, %o6, %o6 st %i1, [%i6+-4] st %i0, [%i6+-8] ldd [%i6+-8], %f0 std %f0, [%i2] restore %g0, %g0, %g0 retl nop on sparcv8. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24983 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-23fold (conv (load x)) -> (load (conv*)x).Chris Lattner
This allows us to compile this: void foo(double); void bar(double *X) { foo(*X); } To this: bar: save -96, %o6, %o6 ld [%i0+4], %o1 ld [%i0], %o0 call foo nop restore %g0, %g0, %g0 retl nop instead of this: bar: save -104, %o6, %o6 ldd [%i0], %f0 std %f0, [%i6+-8] ld [%i6+-4], %o1 ld [%i6+-8], %o0 call foo nop restore %g0, %g0, %g0 retl nop on SparcV8. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24982 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-23Fold bitconv(bitconv(x)) -> x. We now compile this:Chris Lattner
void foo(double); void bar(double X) { foo(X); } to this: bar: save -96, %o6, %o6 or %g0, %i0, %o0 or %g0, %i1, %o1 call foo nop restore %g0, %g0, %g0 retl nop instead of this: bar: save -112, %o6, %o6 st %i1, [%i6+-4] st %i0, [%i6+-8] ldd [%i6+-8], %f0 std %f0, [%i6+-16] ld [%i6+-12], %o1 ld [%i6+-16], %o0 call foo nop restore %g0, %g0, %g0 retl nop on V8. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24981 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-23constant fold bits_convert in getNode and in the dag combiner for fp<->intChris Lattner
conversions. This allows V8 to compiles this: void %test() { call float %test2( float 1.000000e+00, float 2.000000e+00, double 3.000000e+00, double* null ) ret void } into: test: save -96, %o6, %o6 sethi 0, %o3 sethi 1049088, %o2 sethi 1048576, %o1 sethi 1040384, %o0 or %g0, %o3, %o4 call test2 nop restore %g0, %g0, %g0 retl nop instead of: test: save -112, %o6, %o6 sethi 0, %o4 sethi 1049088, %l0 st %o4, [%i6+-12] st %l0, [%i6+-16] ld [%i6+-12], %o3 ld [%i6+-16], %o2 sethi 1048576, %o1 sethi 1040384, %o0 call test2 nop restore %g0, %g0, %g0 retl nop git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24980 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-23Fix a pastoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24973 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-23fix a thinko in the bit_convert handling codeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24972 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-23add very simple support for the BIT_CONVERT nodeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24970 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-22remove dead codeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24965 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-22The 81st column doesn't like code in it.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24943 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-22Add an eol at the end to shut gcc sup.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24926 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21Lefted out TargetLowering::Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24922 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21* Fix a GlobalAddress lowering bug.Evan Cheng
* Teach DAG combiner about X86ISD::SETCC by adding a TargetLowering hook. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24921 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21Disengage DEBUG_LOC from non-PPC targets.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24919 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21* Added support for X86 RET with an additional operand to specify number ofEvan Cheng
bytes to pop off stack. * Added support for X86 SETCC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24917 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21Start of Dwarf framework.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24914 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21make sure to relegalize all casesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24911 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21enable the gep isel optChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24910 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21fix a bug I introduced that broke recursive expansion of nodes (e.g. ↵Chris Lattner
scalarizing vectors) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24905 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21Lower ConstantAggregateZero into zerosChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24890 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21Don't emit a null terminator, nor anything after it, to the ctor/dtor listChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24887 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-20Added a hook to print out names of target specific DAG nodes.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24877 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-20Fix a nasty latent bug in the legalizer that was triggered by my patchChris Lattner
last night, breaking crafty and twolf. Make sure that the newly found legal nodes are themselves not re-legalized until the next iteration. Also, since this functionality exists now, we can reduce number of legalizer iterations by depending on this behavior instead of having to misuse 'do another iteration' to get the same effect. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24875 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-19X86 conditional branch support.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24870 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-19Print out opcode number if it's an unknown target node.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24869 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-19Fix a case where the DAG Combiner would accidentally CSE flag-producing nodes,Chris Lattner
creating graphs that cannot be scheduled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24866 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-19Amend comment.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24861 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-19Create a strong dependency for loads following stores. This will leave aJim Laskey
latency period between the two. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24860 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-18Make sure to relegalize new nodesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24843 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-18Keep VC++ happy.Jeff Cohen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24835 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-18More corrections for flagged copyto/from regChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24828 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-18legalize copytoreg and copyfromreg nodes that have flag operands correctly.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24826 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-18Fix a bug Sabre was having where the DAG root was a group. The group dominatorJim Laskey
needed to be added to the ordering list, not the first member of the group. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24816 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-18Groups were not emitted if the dominator node and the node in the ordering listJim Laskey
were not the same node. Ultimately the test was bogus. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24815 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-18Simplify codeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24806 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-17allow custom expansion of BR_CCChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24804 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-17X86 lowers SELECT to a cmp / test followed by a conditional move.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24754 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-16Added source file/line correspondence for dwarf (PowerPC only at this point.)Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24748 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-15Don't create SEXTLOAD/ZEXTLOAD instructions that the target doesn't supportChris Lattner
if after legalize. This fixes IA64 failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24725 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-14When folding loads into ops, immediately replace uses of the op with theChris Lattner
load. This reduces number of worklist iterations and avoid missing optimizations depending on folding of things into sext_inreg nodes (which aren't supported by all targets). Tested by Regression/CodeGen/X86/extend.ll:test2 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24712 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-14Fix the (zext (zextload)) case to trigger, similarly for sign extends.Chris Lattner
Allow (zext (truncate)) to apply after legalize if the target supports AND (which all do). This compiles short %foo() { %tmp.0 = load ubyte* %X ; <ubyte> [#uses=1] %tmp.3 = cast ubyte %tmp.0 to short ; <short> [#uses=1] ret short %tmp.3 } to: _foo: movzbl _X, %eax ret instead of: _foo: movzbl _X, %eax movzbl %al, %eax ret thanks to Evan for pointing this out. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24709 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-14Fix a miscompilation in crafty due to a recent patchChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24706 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-14Fold (zext (load x) to (zextload x).Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24702 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-13Don't lump the filename and working dir togetherChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24697 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-13Add a couple more fields, move ctor init list to .cpp file, add supportChris Lattner
for emitting the ctor/dtor list for common targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24694 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-13Lowering constant pool entries on ppc exposed a bug in the recently addedNate Begeman
ConstantVec legalizing code, which would return constantpool nodes that were not of the target's pointer type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24691 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-12Accept and ignore prefetches for nowChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24678 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-12Fix CodeGen/Generic/2005-12-12-ExpandSextInreg.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24677 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-11Minor tweak to get isel optChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24663 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-10Add support for TargetConstantPool nodes to the dag isel emitter, and useNate Begeman
them in the PPC backend, to simplify some logic out of Select and SelectAddr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24657 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-10Added new getNode and getTargetNode variants for X86 stores.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24653 91177308-0d34-0410-b5e6-96231b3b80d8
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