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path: root/lib/Target/X86/X86ISelPattern.cpp
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2006-02-17Kill the x86 pattern isel. boom.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26246 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-09provide an explicit alignment for cp entriesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26069 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29remove now-dead code, the legalizer takes care of this for usChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25776 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-27x86 CPU detection and proper subtarget supportEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25679 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25Loosen up these checks to allow direct uses of ESPChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25595 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-22Add explicit #includes of <iostream>Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25515 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-21Rename fcmovae to fcmovnb and fcmova to fcmovnbe (following Intel manual).Evan Cheng
Some assemblers can't recognize the aliases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25494 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-15Use the default lowering of ISD::DYNAMIC_STACKALLOC, delete now dead code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25333 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-13Fix a bug in my last X86 checkin, pointed out by cozmicChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25293 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-13Enable X86 support for savestack/restorestackChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25278 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-12Fix sint_to_fp (fild*) support.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25257 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-11Support for MEMCPY and MEMSET.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25226 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-11* Add special entry code main() (to set x87 to 64-bit precision).Evan Cheng
* Allow a register node as SelectAddr() base. * ExternalSymbol -> TargetExternalSymbol as direct function callee. * Use X86::ESP register rather than CopyFromReg(X86::ESP) as stack ptr for call parmater passing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25207 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-11implement FP_REG_KILL insertion for the dag-dag instruction selectorChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25192 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-06silence a bogus gcc warningChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25129 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21Rewrite FP stackifier support in the X86InstrInfo.td file, splitting patternsChris Lattner
that were overloaded to work before and after the stackifier runs. With the new clean world, it is possible to write patterns for these instructions: woo! This also adds a few simple patterns here and there, though there are a lot still missing. These should be easy to add though. :) See the comments under "Floating Point Stack Support" for more details on the new world order. This patch as absolutely no effect on the generated code, woo! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24899 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-14Fixed a typo: line 2323: MOVSX16rm8 -> MOVZX16rm8. This was the cause fo ↵Evan Cheng
12/14/2005 hbd failure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24717 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-04Fix PR672 another way which should be more robustChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24585 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-03Fix test/Regression/ExecutionEngine/2005-12-02-TailCallBug.ll and PR672.Chris Lattner
This also fixes 177.mesa, the only program that fails with --enable-x86-fastcc turned on. Given a clean nightly tester run, we should be able to turn it on by default! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24578 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-20The second patch of X86 support for read cycle counter.Andrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24430 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-15Separate X86ISelLowering stuff out from the X86ISelPattern.cpp file. PatchChris Lattner
contributed by Evan Cheng. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24358 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-21Invert the TargetLowering flag that controls divide by consant expansion.Nate Begeman
Add a new flag to TargetLowering indicating if the target has really cheap signed division by powers of two, make ppc use it. This will probably go away in the future. Implement some more ISD::SDIV folds in the dag combiner Remove now dead code in the x86 backend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23853 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15Remove some dead code now that the dag combiner exists.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23754 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14Properly split f32 and f64 into separate register classes for scalar sse fpNate Begeman
fixing a bunch of nasty hackery git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23735 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-02silence some warningsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23594 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28Add FP versions of the binary operators, keeping the int and fp worlds seperate.Chris Lattner
Though I have done extensive testing, it is possible that this will break things in configs I can't test. Please let me know if this causes a problem and I'll fix it ASAP. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23505 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14fix a major regression from my patch this afternoonChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23347 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13This code is no longer needed, it is moved to the target-indep codeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23332 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-02Handle any_extend like zextChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23202 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-27Adjust to member variable name change.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23119 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26Fix a bug in my previous checkinChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23082 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26Change ConstantPoolSDNode to actually hold the Constant itself instead ofChris Lattner
putting it into the constant pool. This allows the isel machinery to create constants that it will end up deciding are not needed, without them ending up in the resultant function constant pool. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23081 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-25Fix a warningChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23031 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-19The variable SAR's only take one operand tooChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22888 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-19Stop adding bogus operands to variable shifts on X86. These instructionsChris Lattner
only take one operand. The other comes implicitly in through CL. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22887 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-16update the backends to work with the new CopyFromReg/CopyToReg/ImplicitDef nodesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22807 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-16Implement BR_CC and BRTWOWAY_CC. This allows the removal of a rather nastyNate Begeman
fixme from the PowerPC backend. Emit slightly better code for legalizing select_cc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22805 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-14Fix last night's X86 regressions by putting code for SSE in the if(SSE)Nate Begeman
block. nur. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22788 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-14Fix FP_TO_UINT with Scalar SSE2 now that the legalizer can handle it. WeNate Begeman
now generate the relatively good code sequences: unsigned short foo(float a) { return a; } _foo: movss 4(%esp), %xmm0 cvttss2si %xmm0, %eax movzwl %ax, %eax ret and unsigned bar(float a) { return a; } _bar: movss .CPI_bar_0, %xmm0 movss 4(%esp), %xmm1 movapd %xmm1, %xmm2 subss %xmm0, %xmm2 cvttss2si %xmm2, %eax xorl $-2147483648, %eax cvttss2si %xmm1, %ecx ucomiss %xmm0, %xmm1 cmovb %ecx, %eax ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22786 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-09Update the targets to the new SETCC/CondCodeSDNode interfaces.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22729 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05adjust to change in getSubtarget() apiChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22687 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-03Scalar SSE: load +0.0 -> xorps/xorpdNate Begeman
Scalar SSE: a < b ? c : 0.0 -> cmpss, andps Scalar SSE: float -> i16 needs to be promoted git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22637 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-02Update to use the new MathExtras.h support for log2 computation.Chris Lattner
Patch contributed by Jim Laskey! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22594 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30Keep tabs and trailing spaces out.Jeff Cohen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22565 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30fix a typeoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22561 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30Change the fp to integer code to not perform 2-byte stores followed byChris Lattner
1 byte loads and other operations. This is bad for store-forwarding on common CPUs. We now do this: fnstcw WORD PTR [%ESP] mov %AX, WORD PTR [%ESP] instead of: fnstcw WORD PTR [%ESP] mov %AL, BYTE PTR [%ESP + 1] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22559 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30Use a custom expander for all FP to int conversions, as the X86 only hasChris Lattner
FP-to-int-in-memory: this exposes the load from the stored slot to the selection dag, allowing it to be folded into other operaions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22556 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29Implement a FIXME: move a bunch of cruft for handling FP_TO_*INT operationsChris Lattner
that the X86 does not support to the legalizer. This allows it to be better optimized, etc, and will help with SSE support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22551 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29Don't forget to diddle with the control word when performing an FISTP64.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22550 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29Use a custom expander to compile this:Chris Lattner
long %test4(double %X) { %tmp.1 = cast double %X to long ; <long> [#uses=1] ret long %tmp.1 } to this: _test4: sub %ESP, 12 fld QWORD PTR [%ESP + 16] fistp QWORD PTR [%ESP] mov %EDX, DWORD PTR [%ESP + 4] mov %EAX, DWORD PTR [%ESP] add %ESP, 12 ret instead of this: _test4: sub %ESP, 28 fld QWORD PTR [%ESP + 32] fstp QWORD PTR [%ESP] call ___fixdfdi add %ESP, 28 ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22549 91177308-0d34-0410-b5e6-96231b3b80d8
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