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2005-01-19Add missing data types for VC++Jeff Cohen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19680 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19Implement a way of expanding shifts. This applies to targets that offerChris Lattner
select operations or to shifts that are by a constant. This automatically implements (with no special code) all of the special cases for shift by 32, shift by < 32 and shift by > 32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19679 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19X86 shifts mask the amount.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19678 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19Add a hook to find out how the target handles shift amounts that are out ofChris Lattner
range. Either they are undefined (the default), they mask the shift amount to the size of the register (X86, Alpha, etc), or they extend the shift (PPC). This defaults to undefined, which is conservatively correct. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19677 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19Move all data members to the end of the class.Chris Lattner
Add a hook to find out how the target handles shift amounts that are out of range. Either they are undefined (the default), they mask the shift amount to the size of the register (X86, Alpha, etc), or they extend the shift (PPC). This defaults to undefined, which is conservatively correct. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19676 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Zero is cheaper than sign extend.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19675 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Code to handle FP_EXTEND is dead now. X86 doesn't support any data types toChris Lattner
FP_EXTEND from! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19674 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Remove more dead code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19673 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18The selection dag code handles the promotions from F32 to F64 for us, so weChris Lattner
don't need to even think about F32 in the X86 code anymore. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19672 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Fix some fixmes (promoting bools for select and brcond), fix promotionChris Lattner
of zero and sign extends. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19671 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Keep track of the retval type as well.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19670 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Keep track of the returned value type as well.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19669 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Teach legalize to promote copy(from|to)reg, instead of making the isel passChris Lattner
do it. This results in better code on X86 for floats (because if strict precision is not required, we can elide some more expensive double -> float conversions like the old isel did), and allows other targets to emit CopyFromRegs that are not legal for arguments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19668 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Fix 124.m88ksim.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19667 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Add project llvm-ld to Visual StudioJeff Cohen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19665 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Add project llvm-nm to Visual StudioJeff Cohen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19664 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Add project llvm-ld to Visual StudioJeff Cohen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19663 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Add llvm-bcanalyzer project to Visual StudioJeff Cohen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19662 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Do not emit loads multiple times, potentially in the wrong places.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19661 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Minor changes.Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19660 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Eliminate bad assertions.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19659 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18* Eliminate the TokenSet and just use the ExprMap for both tokens and values.Chris Lattner
* Insert some really pedantic assertions that will notice when we emit the same loads more than one time, exposing bugs. This turns a miscompilation in bzip2 into a compile-fail. yaay. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19658 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Teach legalize to promote SetCC results.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19657 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Allow setcc operations to have nonbool types.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19656 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Allow setcc operations to have non-bool types.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19655 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Rely on the code in MatchAddress to do this work. Otherwise we fail toChris Lattner
match (X+Y)+(Z << 1), because we match the X+Y first, consuming the index register, then there is no place to put the Z. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19652 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Fix the completely broken FP constant folds for setcc's.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19651 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-18Fix a problem where probing for addressing modes caused expressions to beChris Lattner
emitted too early. In particular, this fixes Regression/CodeGen/X86/regpressure.ll:regpressure3. This also improves the 2nd basic block in 164.gzip:flush_block, which went from .LBBflush_block_1: # loopentry.1.i movzx %EAX, WORD PTR [dyn_ltree + 20] movzx %ECX, WORD PTR [dyn_ltree + 16] mov DWORD PTR [%ESP + 32], %ECX movzx %ECX, WORD PTR [dyn_ltree + 12] movzx %EDX, WORD PTR [dyn_ltree + 8] movzx %EBX, WORD PTR [dyn_ltree + 4] mov DWORD PTR [%ESP + 36], %EBX movzx %EBX, WORD PTR [dyn_ltree] add DWORD PTR [%ESP + 36], %EBX add %EDX, DWORD PTR [%ESP + 36] add %ECX, %EDX add DWORD PTR [%ESP + 32], %ECX add %EAX, DWORD PTR [%ESP + 32] movzx %ECX, WORD PTR [dyn_ltree + 24] add %EAX, %ECX mov %ECX, 0 mov %EDX, %ECX to .LBBflush_block_1: # loopentry.1.i movzx %EAX, WORD PTR [dyn_ltree] movzx %ECX, WORD PTR [dyn_ltree + 4] add %ECX, %EAX movzx %EAX, WORD PTR [dyn_ltree + 8] add %EAX, %ECX movzx %ECX, WORD PTR [dyn_ltree + 12] add %ECX, %EAX movzx %EAX, WORD PTR [dyn_ltree + 16] add %EAX, %ECX movzx %ECX, WORD PTR [dyn_ltree + 20] add %ECX, %EAX movzx %EAX, WORD PTR [dyn_ltree + 24] add %ECX, %EAX mov %EAX, 0 mov %EDX, %EAX ... which results in less spilling in the function. This change alone speeds up 164.gzip from 37.23s to 36.24s on apoc. The default isel takes 37.31s. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19650 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Fix indentation.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19649 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17This is a carefully contrived testcase where the X86 ISel is emitting all loadsChris Lattner
before other ops, causing it to spill like mad. This occurs in 164.gzip:flush_block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19648 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Don't bother using max here.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19647 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Do not give token factor nodes outrageous weightsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19645 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Non-volatile loads can be freely reordered against each other. This fixesChris Lattner
X86/reg-pressure.ll again, and allows us to do nice things in other cases. For example, we now codegen this sort of thing: int %loadload(int *%X, int* %Y) { %Z = load int* %Y %Y = load int* %X ;; load between %Z and store %Q = add int %Z, 1 store int %Q, int* %Y ret int %Y } Into this: loadload: mov %EAX, DWORD PTR [%ESP + 4] mov %EAX, DWORD PTR [%EAX] mov %ECX, DWORD PTR [%ESP + 8] inc DWORD PTR [%ECX] ret where we weren't able to form the 'inc [mem]' before. This also lets the instruction selector emit loads in any order it wants to, which can be good for register pressure as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19644 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Two changes:Chris Lattner
1. Fold [mem] += (1|-1) into inc [mem]/dec [mem] to save some icache space. 2. Do not let token factor nodes prevent forming '[mem] op= val' folds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19643 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Don't call SelectionDAG.getRoot() directly, go through a forwarding method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19642 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Refactor load/op/store folding into it's own method, no functionality changes.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19641 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Implement a target independent optimization to codegen arguments only intoChris Lattner
the basic block that uses them if possible. This is a big win on X86, as it lets us fold the argument loads into instructions and reduce register pressure (by not loading all of the arguments in the entry block). For this (contrived to show the optimization) testcase: int %argtest(int %A, int %B) { %X = sub int 12345, %A br label %L L: %Y = add int %X, %B ret int %Y } we used to produce: argtest: mov %ECX, DWORD PTR [%ESP + 4] mov %EAX, 12345 sub %EAX, %ECX mov %EDX, DWORD PTR [%ESP + 8] .LBBargtest_1: # L add %EAX, %EDX ret now we produce: argtest: mov %EAX, 12345 sub %EAX, DWORD PTR [%ESP + 4] .LBBargtest_1: # L add %EAX, DWORD PTR [%ESP + 8] ret This also fixes the FIXME in the code. BTW, this occurs in real code. 164.gzip shrinks from 8623 to 8608 lines of .s file. The stack frame in huft_build shrinks from 1644->1628 bytes, inflate_codes shrinks from 116->108 bytes, and inflate_block from 2620->2612, due to fewer spills. Take that alkis. :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19639 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Fix a major regression last night that prevented us from producing [mem] op= regChris Lattner
operations. The body of the if is less indented but unmodified in this patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19638 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Refactor code into a new method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19635 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Make methods private, add a method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19634 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Codegen this:Chris Lattner
int %foo(int %X) { %T = add int %X, 13 %S = mul int %T, 3 ret int %S } as this: mov %ECX, DWORD PTR [%ESP + 4] lea %EAX, DWORD PTR [%ECX + 2*%ECX + 39] ret instead of this: mov %ECX, DWORD PTR [%ESP + 4] mov %EAX, %ECX add %EAX, 13 imul %EAX, %EAX, 3 ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19633 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Added tmp instructions to preserve ssa.Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19632 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Fix test/Regression/CodeGen/X86/2005-01-17-CycleInDAG.ll and 132.ijpeg.Chris Lattner
Do not fold a load into an operation if it will induce a cycle in the DAG. Repeat after me: dAg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19631 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17New testcase for a problem that occurred in 132.ijpegChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19630 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Delete PHI nodes that are not dead but are locked in a cycle of singleChris Lattner
useness. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19629 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Move code out of indentation one level to make it easier to read.Chris Lattner
Disable the xform for < > cases. It turns out that the following is being miscompiled: bool %test(sbyte %S) { %T = cast sbyte %S to uint %V = setgt uint %T, 255 ret bool %V } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19628 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Add methodsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19627 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Do not fold a load into a comparison that is used by more than one place.Chris Lattner
The comparison will probably be folded, so this is not ok to do. This fixed 197.parser. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19624 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17sysconfdir -> PROJ_etcdirReid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19623 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-17Do not codegen 'xor bool, true' as 'not reg'. not reg inverts the upper bitsChris Lattner
of the bytereg. This fixes yacr2, 300.twolf and probably others. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19622 91177308-0d34-0410-b5e6-96231b3b80d8
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