Chris Lattner [Sat, 9 Apr 2005 21:23:24 +0000 (21:23 +0000)]
do not set the root to null if an argument is dead
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21188
91177308-0d34-0410-b5e6-
96231b3b80d8
Nate Begeman [Sat, 9 Apr 2005 20:09:12 +0000 (20:09 +0000)]
Add rlwnm instruction for variable rotate
Generate rotate left/right immediate
Generate code for brcondtwoway
Use new livein/liveout functionality
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21187
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 19:47:21 +0000 (19:47 +0000)]
Fix a crash on 173.applu by asking for a constant bigger than 32-bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21185
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 16:32:30 +0000 (16:32 +0000)]
Switch this instruction selector over to using liveins and liveouts, eliminating
implicit defs on entry to the function. yaay :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21184
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 16:24:20 +0000 (16:24 +0000)]
there is no need to remove this instruction, linscan does it already as it
removes noop moves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21183
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 16:17:50 +0000 (16:17 +0000)]
Adjust live intervals to support a livein set
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21182
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 15:23:56 +0000 (15:23 +0000)]
Use live out sets for return values instead of imp_defs, which is cleaner and faster.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21181
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 15:23:25 +0000 (15:23 +0000)]
Consider the livein/out set for a function, allowing targets to not have to
use ugly imp_def/imp_uses for arguments and return values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21180
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 15:22:53 +0000 (15:22 +0000)]
add routines to track the livein/out set for a function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21179
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Duraid Madina [Sat, 9 Apr 2005 11:53:00 +0000 (11:53 +0000)]
ok, the "ia64 has a boatload of registers" joke stopped being funny today ;)
* fix overallocation of integer (stacked) registers: we can't allocate
registers for local use if they are required as output registers
this fixes 'toast' in the test suite, and all sorts of larger programs
like bzip2 etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21178
91177308-0d34-0410-b5e6-
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Nate Begeman [Sat, 9 Apr 2005 09:33:07 +0000 (09:33 +0000)]
Optimize FSEL a bit for fneg arguments. This fixes the recently added test
case so that we emit
_test_fneg_sel:
.LBB_test_fneg_sel_0: ;
fsel f1, f1, f3, f2
blr
instead of:
_test_fneg_sel:
.LBB_test_fneg_sel_0: ;
fneg f0, f1
fneg f0, f0
fsel f1, f0, f3, f2
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21177
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Nate Begeman [Sat, 9 Apr 2005 09:30:09 +0000 (09:30 +0000)]
Add a testcase to make sure that we don't emit two fneg instructions back
to back for certain fsel instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21176
91177308-0d34-0410-b5e6-
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Nate Begeman [Sat, 9 Apr 2005 08:29:59 +0000 (08:29 +0000)]
Add cases to cover the rest of the patterns we should be matching
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21175
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 06:27:14 +0000 (06:27 +0000)]
Fix CodeGen/SparcV9/2005-05-09-GEP-Crash.ll a crash on some specfp program
lets hope this doesn't break other programs with induced entropy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21174
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 06:26:27 +0000 (06:26 +0000)]
New testcase that the sparc backend crashes on
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21173
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 05:15:53 +0000 (05:15 +0000)]
recognize some patterns as fabs operations, so that fabs at the source level
is deconstructed then reconstructed here. This catches 19 fabs's in 177.mesa
9 in 168.wupwise, 5 in 171.swim, 3 in 172.mgrid, and 14 in 173.applu out of
specfp2000.
This allows the X86 code generator to make MUCH better code than before for
each of these and saves one instr on ppc.
This depends on the previous CFE patch to expose these correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21171
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 04:55:14 +0000 (04:55 +0000)]
make this test more interesting
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21170
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 04:03:16 +0000 (04:03 +0000)]
add a test for fnabs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21169
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 04:01:32 +0000 (04:01 +0000)]
add a partial test for the fma operations that ppc supports. I'm sure I'm
missing some and not all of these match yet, but I'm sure that Nate will
clean up my mess :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21168
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Chris Lattner [Sat, 9 Apr 2005 03:30:29 +0000 (03:30 +0000)]
Emit BRCONDTWOWAY when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21167
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 03:30:19 +0000 (03:30 +0000)]
Legalize BRCONDTWOWAY into a BRCOND/BR pair if a target doesn't support it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21166
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 9 Apr 2005 03:27:28 +0000 (03:27 +0000)]
print and fold BRCONDTWOWAY correctly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21165
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Chris Lattner [Sat, 9 Apr 2005 03:22:37 +0000 (03:22 +0000)]
This target does not support/want ISD::BRCONDTWOWAY
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21164
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Chris Lattner [Sat, 9 Apr 2005 03:22:30 +0000 (03:22 +0000)]
This target does not yet support ISD::BRCONDTWOWAY
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21163
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Chris Lattner [Sat, 9 Apr 2005 03:21:50 +0000 (03:21 +0000)]
Add a new node
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21162
91177308-0d34-0410-b5e6-
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Nate Begeman [Sat, 9 Apr 2005 03:05:51 +0000 (03:05 +0000)]
64b: Expand S/UREM
32b: No longer pattern match fneg(fsub(fmul)) as fnmsub
Pattern match fsub a, mul(b, c) as fnmsub
Pattern match fadd a, mul(b, c) as fmadd
Those changes speed up hydro2d by 2.5%, distray by 6%, and scimark by 8%
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21161
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Chris Lattner [Sat, 9 Apr 2005 03:02:46 +0000 (03:02 +0000)]
canonicalize a bunch of operations involving fneg
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21160
91177308-0d34-0410-b5e6-
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Nate Begeman [Fri, 8 Apr 2005 23:45:01 +0000 (23:45 +0000)]
Fix 64b shifts
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21159
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 8 Apr 2005 21:31:29 +0000 (21:31 +0000)]
fix this method for 64-bit constants
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21158
91177308-0d34-0410-b5e6-
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Nate Begeman [Fri, 8 Apr 2005 21:26:05 +0000 (21:26 +0000)]
Match Mac OS X 64 bit calling conventions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21157
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Andrew Lenharth [Fri, 8 Apr 2005 17:28:49 +0000 (17:28 +0000)]
collect a few statistics, factor constants (constant loading and mult), fix logic operation pattern matchs, supress FP div when int dividing by a constant
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21156
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Andrew Lenharth [Fri, 8 Apr 2005 16:55:15 +0000 (16:55 +0000)]
oops
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21155
91177308-0d34-0410-b5e6-
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Andrew Lenharth [Fri, 8 Apr 2005 16:46:44 +0000 (16:46 +0000)]
added some tests to check stupid pattern matching mistakes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21154
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Duraid Madina [Fri, 8 Apr 2005 10:01:48 +0000 (10:01 +0000)]
fix bogus division-by-power-of-2 (was wrong for negative input, adds extr insn)
fix hack in division (clean up frcpa instruction)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21153
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Chris Lattner [Fri, 8 Apr 2005 04:03:26 +0000 (04:03 +0000)]
Fix bug: InstCombine/2005-05-07-UDivSelectCrash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21152
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Chris Lattner [Fri, 8 Apr 2005 03:58:21 +0000 (03:58 +0000)]
new testcase that crashes the instcombiner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21151
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Nate Begeman [Thu, 7 Apr 2005 20:30:01 +0000 (20:30 +0000)]
Optimized code sequences for setcc reg, 0
Optimized code sequence for (a < 0) ? b : 0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21150
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Andrew Lenharth [Thu, 7 Apr 2005 20:11:32 +0000 (20:11 +0000)]
Alpha zero extends setcc results
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21149
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Chris Lattner [Thu, 7 Apr 2005 19:43:53 +0000 (19:43 +0000)]
If a target zero or sign extends the result of its setcc, allow folding of
this into sign/zero extension instructions later.
On PPC, for example, this testcase:
%G = external global sbyte
implementation
void %test(int %X, int %Y) {
%C = setlt int %X, %Y
%D = cast bool %C to sbyte
store sbyte %D, sbyte* %G
ret void
}
Now codegens to:
cmpw cr0, r3, r4
li r3, 1
li r4, 0
blt .LBB_test_2 ;
.LBB_test_1: ;
or r3, r4, r4
.LBB_test_2: ;
addis r2, r2, ha16(L_G$non_lazy_ptr-"L00000$pb")
lwz r2, lo16(L_G$non_lazy_ptr-"L00000$pb")(r2)
stb r3, 0(r2)
instead of:
cmpw cr0, r3, r4
li r3, 1
li r4, 0
blt .LBB_test_2 ;
.LBB_test_1: ;
or r3, r4, r4
.LBB_test_2: ;
*** rlwinm r3, r3, 0, 31, 31
addis r2, r2, ha16(L_G$non_lazy_ptr-"L00000$pb")
lwz r2, lo16(L_G$non_lazy_ptr-"L00000$pb")(r2)
stb r3, 0(r2)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21148
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Chris Lattner [Thu, 7 Apr 2005 19:41:49 +0000 (19:41 +0000)]
PowerPC zero extends setcc results
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21147
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Apr 2005 19:41:46 +0000 (19:41 +0000)]
X86 zero extends setcc results
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21146
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Apr 2005 19:41:18 +0000 (19:41 +0000)]
Allow targets which produce setcc results in non-MVT::i1 registers to describe
what the contents of the top bits of these registers are, in the common cases
of targets that sign and zero extend the results.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21145
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Apr 2005 18:58:54 +0000 (18:58 +0000)]
Remove somethign I had for testing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21144
91177308-0d34-0410-b5e6-
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Andrew Lenharth [Thu, 7 Apr 2005 18:15:28 +0000 (18:15 +0000)]
fix a small optimization opertunity and make gcc happy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21143
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Apr 2005 18:14:58 +0000 (18:14 +0000)]
This patch does two things. First, it canonicalizes 'X >= C' -> 'X > C-1'
(likewise for <= >=u >=u).
Second, it implements a special case hack to turn 'X gtu SINTMAX' -> 'X lt 0'
On powerpc, for example, this changes this:
lis r2, 32767
ori r2, r2, 65535
cmplw cr0, r3, r2
bgt .LBB_test_2
into:
cmpwi cr0, r3, 0
blt .LBB_test_2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21142
91177308-0d34-0410-b5e6-
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Andrew Lenharth [Thu, 7 Apr 2005 17:47:00 +0000 (17:47 +0000)]
match case change in codegen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21141
91177308-0d34-0410-b5e6-
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Andrew Lenharth [Thu, 7 Apr 2005 17:19:16 +0000 (17:19 +0000)]
fixup magic constant making code. tested by thousands of random divisions.... by 10000. ok, so random divisors would be good too, but this at least fixes some things
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21140
91177308-0d34-0410-b5e6-
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Andrew Lenharth [Thu, 7 Apr 2005 17:17:48 +0000 (17:17 +0000)]
lowercase instructions, makes diff happier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21139
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Chris Lattner [Thu, 7 Apr 2005 17:14:51 +0000 (17:14 +0000)]
Implement the following xforms:
(X-Y)-X --> -Y
A + (B - A) --> B
(B - A) + A --> B
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21138
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Chris Lattner [Thu, 7 Apr 2005 16:41:45 +0000 (16:41 +0000)]
new test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21137
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Chris Lattner [Thu, 7 Apr 2005 16:28:01 +0000 (16:28 +0000)]
Implement InstCombine/add.ll:test28, transforming C1-(X+C2) --> (C1-C2)-X.
This occurs several dozen times in specint2k, particularly in crafty and gcc
apparently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21136
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Chris Lattner [Thu, 7 Apr 2005 16:24:59 +0000 (16:24 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21135
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Chris Lattner [Thu, 7 Apr 2005 16:15:25 +0000 (16:15 +0000)]
Transform X-(X+Y) == -Y and X-(Y+X) == -Y
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21134
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Andrew Lenharth [Thu, 7 Apr 2005 14:18:13 +0000 (14:18 +0000)]
It wasn't happy about this either
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21133
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Andrew Lenharth [Thu, 7 Apr 2005 13:55:53 +0000 (13:55 +0000)]
Yea, it wasn't happy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21132
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Duraid Madina [Thu, 7 Apr 2005 12:34:36 +0000 (12:34 +0000)]
teach asmprinter to print s8/s14 operands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21131
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Duraid Madina [Thu, 7 Apr 2005 12:33:38 +0000 (12:33 +0000)]
codegen immediate forms of add/sub/shift
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21130
91177308-0d34-0410-b5e6-
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Duraid Madina [Thu, 7 Apr 2005 12:32:24 +0000 (12:32 +0000)]
add immediate forms of add, sub, shift
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21129
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 7 Apr 2005 00:30:13 +0000 (00:30 +0000)]
Fix a really scary bug that Nate found where we weren't deleting the right
elements auto of the autoCSE maps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21128
91177308-0d34-0410-b5e6-
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Nate Begeman [Wed, 6 Apr 2005 23:51:40 +0000 (23:51 +0000)]
Pattern match bitfield insert, which helps shift long by immediate, among
other things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21127
91177308-0d34-0410-b5e6-
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Nate Begeman [Wed, 6 Apr 2005 22:42:08 +0000 (22:42 +0000)]
Fix some shift bugs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21126
91177308-0d34-0410-b5e6-
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Alkis Evlogimenos [Wed, 6 Apr 2005 22:09:40 +0000 (22:09 +0000)]
Make these 64 bit constants so that this compiles on x86-32 as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21125
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Andrew Lenharth [Wed, 6 Apr 2005 22:03:13 +0000 (22:03 +0000)]
added sdiv by 2^k and works for neg divisors also
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21124
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Chris Lattner [Wed, 6 Apr 2005 21:45:00 +0000 (21:45 +0000)]
Don't make this require loopsimplify. It works BETTER with loop simplify
but should not require it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21123
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Nate Begeman [Wed, 6 Apr 2005 21:13:14 +0000 (21:13 +0000)]
Teach ExpandShift how to handle shifts by a constant. This allows targets
like PowerPC to codegen long shifts in many fewer instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21122
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Andrew Lenharth [Wed, 6 Apr 2005 20:59:59 +0000 (20:59 +0000)]
fix copy/paste errors, and add imm support to SxADDQ and SxSUBQ
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21121
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 6 Apr 2005 20:59:35 +0000 (20:59 +0000)]
Fix SingleSource/Regression/C/2005-05-06-LongLongSignedShift.c, we were not
properly sign extending the top of the result of a 64-bit shift right by
a constant > 32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21120
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Andrew Lenharth [Wed, 6 Apr 2005 20:59:03 +0000 (20:59 +0000)]
simplified
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21119
91177308-0d34-0410-b5e6-
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Andrew Lenharth [Wed, 6 Apr 2005 20:39:17 +0000 (20:39 +0000)]
added first alpha codegen regression test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21117
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Andrew Lenharth [Wed, 6 Apr 2005 20:25:34 +0000 (20:25 +0000)]
Added Nate's div by constant stuff, also scaled operations!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21116
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Chris Lattner [Wed, 6 Apr 2005 19:45:39 +0000 (19:45 +0000)]
Fix a namespace issue, reported by Vladimir Merzliakov!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21115
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Duraid Madina [Wed, 6 Apr 2005 09:55:17 +0000 (09:55 +0000)]
steal sampo's div-by-constant-power-of-2 stuff
thanks sampo!!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21113
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Duraid Madina [Wed, 6 Apr 2005 09:54:09 +0000 (09:54 +0000)]
add fms instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21112
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Nate Begeman [Wed, 6 Apr 2005 06:44:57 +0000 (06:44 +0000)]
Fixed version of optimized integer divide is now fixed. Calculate the
quotient, not the remainder. Also, make sure to remove the old div operand
from the ExprMap and let SelectExpr insert the new one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21111
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Duraid Madina [Wed, 6 Apr 2005 06:18:36 +0000 (06:18 +0000)]
lie a bit and say that r1/r12 (GP/SP) _aren't_ callee-save, as we take
care of this ourselves
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21110
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Duraid Madina [Wed, 6 Apr 2005 06:17:54 +0000 (06:17 +0000)]
make sure 'special' registers don't get allocated
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21109
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Chris Lattner [Wed, 6 Apr 2005 04:21:29 +0000 (04:21 +0000)]
document these nodes, as they are nonobvious
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21108
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Chris Lattner [Wed, 6 Apr 2005 04:21:07 +0000 (04:21 +0000)]
Add (untested) support for MULHS and MULHU.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21107
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Chris Lattner [Wed, 6 Apr 2005 04:19:22 +0000 (04:19 +0000)]
add signed versions of the extra precision multiplies
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21106
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Nate Begeman [Wed, 6 Apr 2005 03:36:33 +0000 (03:36 +0000)]
Turn off the div -> mul optimization until it works correctly 100% of the
time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21105
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Nate Begeman [Wed, 6 Apr 2005 00:25:27 +0000 (00:25 +0000)]
Add support for MULHS and MULHU nodes
Have LegalizeDAG handle SREM and UREM for us
Codegen SDIV and UDIV by constant as a multiply by magic constant instead
of integer divide, which is very slow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21104
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Nate Begeman [Wed, 6 Apr 2005 00:23:54 +0000 (00:23 +0000)]
Expand SREM and UREM for targets that claim not to have them, like PowerPC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21103
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Nate Begeman [Tue, 5 Apr 2005 22:36:56 +0000 (22:36 +0000)]
Add MULHU and MULHS nodes for the high part of an (un)signed 32x32=64b
multiply.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21102
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Andrew Lenharth [Tue, 5 Apr 2005 20:51:46 +0000 (20:51 +0000)]
added lowerargs support for varargs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21101
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Nate Begeman [Tue, 5 Apr 2005 18:19:50 +0000 (18:19 +0000)]
Behold, rlwinm with certain immediate arguments is printed as the much more
readable slwi or srwi (shift left/right word immediate).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21099
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Nate Begeman [Tue, 5 Apr 2005 17:32:30 +0000 (17:32 +0000)]
Fix cut & paste errors (32->64), and codegen float->int more optimally.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21098
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Tanya Lattner [Tue, 5 Apr 2005 16:36:44 +0000 (16:36 +0000)]
Updated to use dep analyzer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21097
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Nate Begeman [Tue, 5 Apr 2005 08:51:15 +0000 (08:51 +0000)]
Remove 64 bit simple ISel, it never worked correctly
Add initial (buggy) implementation of 64 bit pattern ISel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21096
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Nate Begeman [Tue, 5 Apr 2005 04:32:16 +0000 (04:32 +0000)]
Back out the previous change to SelectBranchCC, since there are cases it
could miscompile. A correct solution will be found in the near future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21095
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Nate Begeman [Tue, 5 Apr 2005 04:22:58 +0000 (04:22 +0000)]
Rename canUseAsImmediateForOpcode to getImmediateForOpcode to better
indicate that it is not a boolean function.
Properly emit the pseudo instruction for conditional branch, so that we
can fix up conditional branches whose displacements are too large.
Reserve the right amount of opcode space for said pseudo instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21094
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Chris Lattner [Tue, 5 Apr 2005 01:12:03 +0000 (01:12 +0000)]
do not crash when using -debug
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21092
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Nate Begeman [Tue, 5 Apr 2005 00:15:08 +0000 (00:15 +0000)]
Implement SDIV by power of 2 as srawi/addze rather than load imm, divw
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21091
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Nate Begeman [Mon, 4 Apr 2005 23:40:36 +0000 (23:40 +0000)]
Pattern match fp mul-add, mul-sub, neg-mul-add, and neg-mul-sub
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21090
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Nate Begeman [Mon, 4 Apr 2005 23:01:51 +0000 (23:01 +0000)]
Add support for multiply-add, multiply-sub, and their negated versions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21089
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Chris Lattner [Mon, 4 Apr 2005 22:23:21 +0000 (22:23 +0000)]
do not dereference an extra layer of pointers to determine if an external
call can modify a memory location. This fixes
test/Regression/Analysis/Andersens/modreftest.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21088
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Chris Lattner [Mon, 4 Apr 2005 22:22:30 +0000 (22:22 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21087
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Nate Begeman [Mon, 4 Apr 2005 22:17:48 +0000 (22:17 +0000)]
Make sure that arg regs used by the call instruction are marked as such, so
that regalloc doesn't cleverly reuse early arg regs loading later arg regs.
This fixes almost all outstanding failures in the pattern isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21086
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Nate Begeman [Mon, 4 Apr 2005 21:48:13 +0000 (21:48 +0000)]
Remove unnecessary register copy now that regalloc is fixed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21085
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Chris Lattner [Mon, 4 Apr 2005 21:35:34 +0000 (21:35 +0000)]
Make sure to notice that explicit physregs are used in the function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21084
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Nate Begeman [Mon, 4 Apr 2005 09:09:00 +0000 (09:09 +0000)]
i1 loads should also be from the low byte of the argument word.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21077
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