b1124f3c76
This fixes a couple of problems with expansion
...
llvm-svn: 26318
2006-02-22 23:09:03 +00:00
6f87d18be9
Change a whole bunch of code to be built around RegsForValue instead of
...
a single register number. This fully implements promotion for inline asms,
expand is close but not quite right yet.
llvm-svn: 26316
2006-02-22 22:37:12 +00:00
2fa33a989d
Coordinate activities with llvm-gcc4 and dwarf.
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llvm-svn: 26314
2006-02-22 19:02:11 +00:00
7ad77dfc2a
split register class handling from explicit physreg handling.
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llvm-svn: 26308
2006-02-22 00:56:39 +00:00
5c79f98f15
Adjust to changes in getRegForInlineAsmConstraint prototype
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llvm-svn: 26306
2006-02-21 23:12:12 +00:00
43070b7541
Added x86 integer vector types: 64-bit packed byte integer (v16i8), 64-bit
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packed word integer (v8i16), and 64-bit packed doubleword integer (v2i32).
llvm-svn: 26294
2006-02-20 22:34:53 +00:00
301f45cf6f
Fix a problem Nate and Duraid reported where simplifying nodes can cause
...
them to get ressurected, in which case, deleting the undead nodes is
unfriendly.
llvm-svn: 26291
2006-02-20 06:51:04 +00:00
486d1bc5ed
Fix a problem on itanium with memset. The value to set has been promoted to
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i64 before this code, so zero_ext doesn't work.
llvm-svn: 26290
2006-02-20 06:38:35 +00:00
abac61603f
Add checks to make sure we don't create bogus extend nodes, and fix a bug
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where we were doing exactly that which was causing failures on x86 and
alpha.
llvm-svn: 26284
2006-02-18 02:40:58 +00:00
375e1a71cc
Fix a tricky issue in the SimplifyDemandedBits code where CombineTo wasn't
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exactly the API we wanted to call into. This fixes the crash on crafty last
night.
llvm-svn: 26269
2006-02-17 21:58:01 +00:00
fb5dbadf15
Clean up DemandedBitsAreZero interface
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Make more use of the new mask helpers in valuetypes.h
Combine (sra (srl x, c1), c1) -> sext_inreg if legal
llvm-svn: 26263
2006-02-17 19:54:08 +00:00
57b3567552
Don't expand sdiv by power of two before legalize, since it will likely
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generate illegal nodes.
llvm-svn: 26261
2006-02-17 07:26:20 +00:00
5965bd19f8
kill ADD_PARTS & SUB_PARTS and replace them with fancy new ADDC, ADDE, SUBC
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and SUBE nodes that actually expose what's going on and allow for
significant simplifications in the targets.
llvm-svn: 26255
2006-02-17 05:43:56 +00:00
9ec392b2aa
Fix another miscompilation exposed by lencode, where we lowered i64->f32
...
conversions to __floatdidf instead of __floatdisf on targets that support
f32 but not i64 (e.g. sparc).
llvm-svn: 26254
2006-02-17 04:32:33 +00:00
c3dcf5a4d7
Dumb bug. Code sees a memcpy from X+c so it increments src offset. But it
...
turns out not to point to a constant string but it forgot change the offset
back.
llvm-svn: 26242
2006-02-16 23:11:42 +00:00
8a77efe4f7
Rework the SelectionDAG-based implementations of SimplifyDemandedBits
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and ComputeMaskedBits to match the new improved versions in instcombine.
Tested against all of multisource/benchmarks on ppc.
llvm-svn: 26238
2006-02-16 21:11:51 +00:00
42c01c8d39
If the false case is the current basic block, then this is a self loop.
...
We do not want to emit "Loop: ... brcond Out; br Loop", as it adds an extra
instruction in the loop. Instead, invert the condition and emit
"Loop: ... br!cond Loop; br Out.
Generalize the fix by moving it from PPCDAGToDAGISel to SelectionDAGLowering.
llvm-svn: 26231
2006-02-16 08:27:56 +00:00
471627c49d
Lowering of sdiv X, pow2 was broken, this fixes it. This patch is written
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by Nate, I'm just committing it for him.
llvm-svn: 26230
2006-02-16 08:02:36 +00:00
93e4865d4b
Remove an unused function parameter.
...
llvm-svn: 26221
2006-02-15 22:12:35 +00:00
6781b6e62e
Turn a memcpy from string constant into a series of stores of constant values.
...
llvm-svn: 26219
2006-02-15 21:59:04 +00:00
2eea436192
Should not combine ISD::LOCATIONs until we have scheme to remove from
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MachineDebugInfo tables.
llvm-svn: 26216
2006-02-15 19:34:44 +00:00
e2038bdeee
Lower memcpy with small constant size operand into a series of load / store
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ops.
llvm-svn: 26195
2006-02-15 01:54:51 +00:00
0451499b3c
Doh again!
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llvm-svn: 26188
2006-02-14 23:05:54 +00:00
ebb50a61d2
Using wrong DW_FORM.
...
llvm-svn: 26184
2006-02-14 22:01:57 +00:00
db2a7a736a
Keep to < 80 cols
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llvm-svn: 26177
2006-02-14 20:12:38 +00:00
038521ef76
Missed a break so memcpy cases fell through to memset. Doh.
...
llvm-svn: 26176
2006-02-14 19:45:56 +00:00
d502610604
Fixed a build breakage.
...
llvm-svn: 26175
2006-02-14 09:11:59 +00:00
4b40a42653
Rename maxStoresPerMemSet to maxStoresPerMemset, etc.
...
llvm-svn: 26174
2006-02-14 08:38:30 +00:00
81fcea8aa2
Expand memset dst, c, size to a series of stores if size falls below the
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target specific theshold, e.g. 16 for x86.
llvm-svn: 26171
2006-02-14 08:22:34 +00:00
1784a9d267
now that libcalls don't suck, we can remove this hack
...
llvm-svn: 26164
2006-02-14 05:39:35 +00:00
8e2ee7358f
Fix a latent bug in the call sequence handling stuff. Some targets (e.g. x86)
...
create these nodes with flag results. Remember that we legalized them.
llvm-svn: 26156
2006-02-14 00:55:02 +00:00
390c63e9d9
Rename to better reflect usage (current and planned.)
...
llvm-svn: 26145
2006-02-13 12:50:39 +00:00
462505fc5f
Completely rewrite libcall insertion by the legalizer, providing the
...
following handy-dandy properties:
1. it is always correct now
2. it is much faster than before
3. it is easier to understand
This implementation builds off of the recent simplifications of the
legalizer that made it single-pass instead of iterative.
This fixes JM/lencod, JM/ldecod, and
CodeGen/Generic/2006-02-12-InsertLibcall.ll (at least on PPC).
llvm-svn: 26144
2006-02-13 09:18:02 +00:00
5995d0160c
Reorg for integration with gcc4. Old style debug info will not be passed though
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to SelIDAG.
llvm-svn: 26115
2006-02-11 01:01:30 +00:00
a1ef3ec5b5
Added SelectionDAG::InsertISelMapEntry(). This is used to workaround the gcc
...
problem where it inline the map insertion call too aggressively. Before this
change it was producing a frame size of 24k for Select_store(), now it's down
to 10k (by calling this method rather than calling the map insertion operator).
llvm-svn: 26094
2006-02-09 22:11:03 +00:00
d3f1db93c1
More changes to reduce frame size.
...
Move all getTargetNode() out of SelectionDAG.h into SelectionDAG.cpp. This
prevents them from being inlined.
Change getTargetNode() so they return SDNode * instead of SDOperand to prevent
copying. It should also help compilation speed.
llvm-svn: 26083
2006-02-09 07:15:23 +00:00
f6190821da
Adjust to MachineConstantPool interface change: instead of keeping a
...
value/alignment pair for each constant, keep a value/offset pair.
llvm-svn: 26078
2006-02-09 04:46:04 +00:00
ba97264e72
rename fields of constant pool entries
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llvm-svn: 26076
2006-02-09 04:22:52 +00:00
47f7319f00
Simplify code, alignment must be specified now.
...
llvm-svn: 26074
2006-02-09 02:26:04 +00:00
4576bb74d5
Make MachineConstantPool entries alignments explicit
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llvm-svn: 26071
2006-02-09 02:23:13 +00:00
ed87dcd45f
Add support for assembler directives that wrap inline asm
...
llvm-svn: 26065
2006-02-08 23:41:56 +00:00
a10e23c19f
Compile this:
...
xori r6, r2, 1
rlwinm r6, r6, 0, 31, 31
cmpwi cr0, r6, 0
bne cr0, LBB1_3 ; endif
to this:
rlwinm r6, r2, 0, 31, 31
cmpwi cr0, r6, 0
beq cr0, LBB1_3 ; endif
llvm-svn: 26047
2006-02-08 02:13:15 +00:00
34f74c180a
Add support for modifier characters to operand printers
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llvm-svn: 26021
2006-02-06 22:17:23 +00:00
0458fb76fd
Goodbye nasty macro.
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llvm-svn: 26019
2006-02-06 21:54:05 +00:00
b643ff5546
Edit requests from Sabre.
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llvm-svn: 26018
2006-02-06 19:12:02 +00:00
85263234a8
Changing model for the construction of debug information.
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llvm-svn: 26016
2006-02-06 15:33:21 +00:00
8c9cd461df
Back out previous commit, it isn't safe.
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llvm-svn: 26006
2006-02-05 08:23:00 +00:00
3dc8b89493
fold c1 << (x + c2) into (c1 << c2) << x. fix a warning.
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llvm-svn: 26005
2006-02-05 08:07:24 +00:00
c89fdf1eb3
Handle urem by shifted powers of 2.
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llvm-svn: 26001
2006-02-05 07:36:48 +00:00
25d178bece
handle combining A / (B << N) into A >>u (log2(B)+N) when B is a power of 2
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llvm-svn: 26000
2006-02-05 07:20:23 +00:00
Chris Lattner