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2006-04-17Don't diddle VRSAVE if no registers need to be added/removed from it. ThisChris Lattner
allows us to codegen functions as: _test_rol: vspltisw v2, -12 vrlw v2, v2, v2 blr instead of: _test_rol: mfvrsave r2, 256 mr r3, r2 mtvrsave r3 vspltisw v2, -12 vrlw v2, v2, v2 mtvrsave r2 blr Testcase here: CodeGen/PowerPC/vec_vrsave.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27777 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17New testcase, shouldn't touch vrsaveChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27776 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Add a MachineInstr::eraseFromParent convenience method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27775 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Add some convenience methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27774 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Encoding bugEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27773 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Vectors that are known live-in and live-out are clearly already marked inChris Lattner
the vrsave register for the caller. This allows us to codegen a function as: _test_rol: mfspr r2, 256 mr r3, r2 mtspr 256, r3 vspltisw v2, -12 vrlw v2, v2, v2 mtspr 256, r2 blr instead of: _test_rol: mfspr r2, 256 oris r3, r2, 40960 mtspr 256, r3 vspltisw v0, -12 vrlw v2, v0, v0 mtspr 256, r2 blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27772 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Prefer to allocate V2-V5 before V0,V1. This lets us generate code like this:Chris Lattner
vspltisw v2, -12 vrlw v2, v2, v2 instead of: vspltisw v0, -12 vrlw v2, v0, v0 when a function is returning a value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27771 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Move some knowledge about registers out of the code emitter into the ↵Chris Lattner
register info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27770 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Use a small table instead of macros to do this conversion.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27769 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Implement v8i16, v16i8 splat using unpckl + pshufd.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27768 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17implement returns of a vector, testcase here: CodeGen/X86/vec_return.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27767 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17New testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27766 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Codegen insertelement with constant insertion points as scalar_to_vectorChris Lattner
and a shuffle. For this: void %test2(<4 x float>* %F, float %f) { %tmp = load <4 x float>* %F ; <<4 x float>> [#uses=2] %tmp3 = add <4 x float> %tmp, %tmp ; <<4 x float>> [#uses=1] %tmp2 = insertelement <4 x float> %tmp3, float %f, uint 2 ; <<4 x float>> [#uses=2] %tmp6 = add <4 x float> %tmp2, %tmp2 ; <<4 x float>> [#uses=1] store <4 x float> %tmp6, <4 x float>* %F ret void } we now get this on X86 (which will get better): _test2: movl 4(%esp), %eax movaps (%eax), %xmm0 addps %xmm0, %xmm0 movaps %xmm0, %xmm1 shufps $3, %xmm1, %xmm1 movaps %xmm0, %xmm2 shufps $1, %xmm2, %xmm2 unpcklps %xmm1, %xmm2 movss 8(%esp), %xmm1 unpcklps %xmm1, %xmm0 unpcklps %xmm2, %xmm0 addps %xmm0, %xmm0 movaps %xmm0, (%eax) ret instead of: _test2: subl $28, %esp movl 32(%esp), %eax movaps (%eax), %xmm0 addps %xmm0, %xmm0 movaps %xmm0, (%esp) movss 36(%esp), %xmm0 movss %xmm0, 8(%esp) movaps (%esp), %xmm0 addps %xmm0, %xmm0 movaps %xmm0, (%eax) addl $28, %esp ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27765 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Make sure to check splats of every constant we can, handle splat(31) byChris Lattner
being a bit more clever, add support for odd splats from -31 to -17. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27764 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Incorrect foldMemoryOperand entriesEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27763 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Errors in patterns preventing load foldingEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27762 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Add checks for __OpenBSD__.Jeff Cohen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27761 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Teach the ppc backend to use rol and vsldoi to generate splatted constants.Chris Lattner
This implements vec_constants.ll:test_vsldoi and test_rol git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27760 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Some more cases that can be generated with two instructionsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27759 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17add a noteChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27758 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17FP SETOLT, SETOLT, SETUGE, SETUGT conditions were implemented incorrectlyEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27755 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Make some code more general, adding support for constant formation of severalChris Lattner
new patterns. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27754 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17New testcasesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27753 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Learn how to make odd splatted constants in range [17,29]. This implementsChris Lattner
PowerPC/vec_constants.ll:test_29. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27752 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17new testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27751 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Pull some code out into a helper function.Chris Lattner
Effeciently codegen even splats in the range [-32,30]. This allows us to codegen <30,30,30,30> as: vspltisw v0, 15 vadduwm v2, v0, v0 instead of as a cp load. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27750 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17New testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27749 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Implement a TODO: for any shuffle that can be viewed as a v4[if]32 shuffle,Chris Lattner
if it can be implemented in 3 or fewer discrete altivec instructions, codegen it as such. This implements Regression/CodeGen/PowerPC/vec_perf_shuffle.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27748 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17new testcase, these shuffles can be implemented with discrete instructions,Chris Lattner
and shouldn't be lowered to vperm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27747 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Regenerate with adjusted costsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27746 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Encode a cost of zero as a cost of 1.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27745 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Regenerate with correct offsetChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27744 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Really, I can count!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27743 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Increase the opcodes by one each to disambiguate COPY from VMRGHW.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27742 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17assign stable opcodes to the various altivec ops.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27741 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17PPCPerfectShuffle.h is autogenerated, don't include it in the LOC counts.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27740 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Check in a table, generated by llvm-PerfectShuffle, of optimal shufflesChris Lattner
of various 4-element vectors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27739 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Rename BuildShuffleTable -> PerfectShuffleChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27738 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17rename the tableChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27737 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-17Initial checking of a perfect shuffle generation program for 4-elementChris Lattner
Altivec vectors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27736 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-16Better way to splat v2f64Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27735 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-16movduprm, movshduprm bugsEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27734 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-16Encoding bugsEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27733 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-16Can't fold loads into alias vector SSE ops used for scalar operation. The loadEvan Cheng
address has to be 16-byte aligned but the values aren't spilled to 128-bit locations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27732 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-16Implement a TODO: have the legalizer canonicalize a bunch of operations toChris Lattner
one type (v4i32) so that we don't have to write patterns for each type, and so that more CSE opportunities are exposed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27731 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-16Add support for promoting stores from one legal type to another, allowing usChris Lattner
to write one pattern for vector stores instead of 4. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27730 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-16Make the BUILD_VECTOR lowering code much more aggressive w.r.t constant vectors.Chris Lattner
Remove some done items from the todo list. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27729 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-16Fix a bug in the 'shuffle(undef,x,mask) -> shuffle(x, undef,mask')' xformChris Lattner
Make the insert/extract elt -> shuffle code more aggressive. This fixes CodeGen/PowerPC/vec_shuffle.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27728 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-16Canonicalize shuffle(undef,x,mask) -> shuffle(x, undef,mask').Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27727 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-15Fix a crash when faced with a shuffle vector that has an undef in its mask.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27726 91177308-0d34-0410-b5e6-96231b3b80d8
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