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1ea1008e1f
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2833 Commits

Author SHA1 Message Date
Matthijs Kooijman
1ea1008e1f * Make TargetLowering not crash when TargetMachine::getTargetAsmInfo() returns 
null. This assumes that any target that does not have AsmInfo, does not
   support "LocAndDot".

llvm-svn: 57438
 2008-10-13 12:41:46 +00:00
Chris Lattner
16c0109fd4 calls can be supported. 
llvm-svn: 57428
 2008-10-13 01:59:13 +00:00
Chris Lattner
7910d59d44 Change CALLSEQ_BEGIN and CALLSEQ_END to take TargetConstant's as 
parameters instead of raw Constants.  This prevents the constants from
being selected by the isel pass, fixing PR2735.

llvm-svn: 57385
 2008-10-11 22:08:30 +00:00
Chris Lattner
2f2ef3f25f simplify comparison 
llvm-svn: 57371
 2008-10-11 00:08:02 +00:00
Dale Johannesen
075a62519f Add a "loses information" return value to APFloat::convert 
and APFloat::convertToInteger.  Restore return value to
IEEE754.  Adjust all users accordingly.

llvm-svn: 57329
 2008-10-09 23:00:39 +00:00
Dale Johannesen
9e57068854 Rename APFloat::convertToAPInt to bitcastToAPInt to 
make it clearer what the function does.  No functional
change.

llvm-svn: 57325
 2008-10-09 18:53:47 +00:00
Dan Gohman
6d98c5ab31 Avoid emitting redundant materializations of integer constants 
for things like null pointers, which at this level aren't
different from regular integer constants.

llvm-svn: 57265
 2008-10-07 22:03:27 +00:00
Andrew Lenharth
66cc9d5e53 Use Dan's supperior check 
llvm-svn: 57255
 2008-10-07 18:27:23 +00:00
Andrew Lenharth
950618a347 No need for |= 
llvm-svn: 57249
 2008-10-07 17:11:29 +00:00
Andrew Lenharth
2399c6cb95 Use ADDC if it is valid at any smaller size. Do it right this time 
llvm-svn: 57248
 2008-10-07 17:09:16 +00:00
Andrew Lenharth
84166420cc Use ADDC if it is valid at any smaller size. fixes test/Codegen/Generic/i128-addsub.ll on x86 
llvm-svn: 57247
 2008-10-07 17:03:15 +00:00
Andrew Lenharth
c00c2a0058 Expand arith on machines without carry flags 
llvm-svn: 57243
 2008-10-07 14:15:42 +00:00
Dan Gohman
188af3ae0d Correctly handle calls with no return values. This fixes 
2006-01-23-UnionInit on x86-64 when inlining is not enabled.

llvm-svn: 57223
 2008-10-07 00:12:37 +00:00
Chris Lattner
576e29c87d wrap some long lines and expand i32 mul's to libcalls, inspired by a 
patch by Mikael Lepisto!

llvm-svn: 57077
 2008-10-04 21:27:46 +00:00
Dan Gohman
5944450d5f Fix fast-isel's handling of atomic instructions. They may 
expand to multiple basic blocks, in which case fast-isel
needs to informed of which block to use as it resumes
inserting instructions.

llvm-svn: 57040
 2008-10-04 00:56:36 +00:00
Dale Johannesen
27d8955b8f Pass MemOperand through for 64-bit atomics on 32-bit, 
incidentally making the case where the memop is a
pointer deref work.  Fix cmp-and-swap regression.

llvm-svn: 57027
 2008-10-03 19:41:08 +00:00
Dan Gohman
dc99a744fd Use -1ULL instead of uint64_t(-1), at Anton's suggestion. 
llvm-svn: 57021
 2008-10-03 17:56:45 +00:00
Duncan Sands
00b25fea88 The result of getSetCCResultType (eg: i32) may be larger 
than the type an i1 is promoted to (eg: i8).  Account
for this.  Noticed by Tilmann Scheller on CellSPU; he
will hopefully take care of fixing this in LegalizeDAG
and adding a testcase!

llvm-svn: 56997
 2008-10-03 07:41:46 +00:00
Dan Gohman
68e27d0b27 Implement fast-isel support for zero-extending from i1. 
It turns out that this is a fairly common operation,
and it's easy enough to handle.

llvm-svn: 56990
 2008-10-03 01:28:47 +00:00
Dan Gohman
e75d14f8b0 Optimize conditional branches in X86FastISel. This replaces 
sequences like this:
       sete    %al
       testb   %al, %al
       jne     LBB11_1
with this:
       je      LBB11_1

llvm-svn: 56969
 2008-10-02 22:15:21 +00:00
Dale Johannesen
dbd7b1bd33 Handle some 64-bit atomics on x86-32, some of the time. 
llvm-svn: 56963
 2008-10-02 18:53:47 +00:00
Dan Gohman
e1d0930044 Make some implicit conversions explicit, to avoid compiler warnings. 
llvm-svn: 56927
 2008-10-01 19:58:59 +00:00
Dan Gohman
6466b44315 Fold trivial two-operand tokenfactors where the operands are equal 
immediately.

llvm-svn: 56921
 2008-10-01 15:11:19 +00:00
Dan Gohman
81ade97fe0 Fix typos in comments. 
llvm-svn: 56919
 2008-10-01 15:07:49 +00:00
Bill Wendling
d7effcf8da Implement the -fno-builtin option in the front-end, not in the back-end. 
llvm-svn: 56900
 2008-10-01 00:59:58 +00:00
Bill Wendling
86f6fdc7e3 - Initialize "--no-builtin" to "false". 
- Testcase for r56885.

llvm-svn: 56886
 2008-09-30 21:40:30 +00:00
Bill Wendling
9ad453e943 Add the new `-no-builtin' flag. This flag is meant to mimic the GCC 
`-fno-builtin' flag. Currently, it's used to replace "memset" with "_bzero"
instead of "__bzero" on Darwin10+. This arguably violates the meaning of this
flag, but is currently sufficient. The meaning of this flag should become more
specific over time.

llvm-svn: 56885
 2008-09-30 21:22:07 +00:00
Dan Gohman
19530c810d Move the primary fast-isel top-level comments to FastISel.cpp, where 
they'll be a little more visible. Also, update and reword them a bit.

llvm-svn: 56877
 2008-09-30 20:48:29 +00:00
Dan Gohman
5a2169ee6e Optimize SelectionDAG's AssignTopologicalOrder even further. 
Completely eliminate the TopOrder std::vector. Instead, sort
the AllNodes list in place. This also eliminates the need to
call AllNodes.size(), a linear-time operation, before
performing the sort.

Also, eliminate the Sources temporary std::vector, since it
essentially duplicates the sorted result as it is being
built.

This also changes the direction of the topological sort
from bottom-up to top-down. The AllNodes list starts out in
roughly top-down order, so this reduces the amount of
reordering needed. Top-down is also more convenient for
Legalize, and ISel needed only minor adjustments.

llvm-svn: 56867
 2008-09-30 18:30:35 +00:00
Dale Johannesen
52987eab6e Remove misuse of ReplaceNodeResults for atomics with 
valid types.  No functional change.

llvm-svn: 56808
 2008-09-29 22:25:26 +00:00
Dan Gohman
f78676d0b6 Fix FastISel to not initialize the PIC-base register multiple times 
in functions with PIC references from more than one basic block.

llvm-svn: 56807
 2008-09-29 21:55:50 +00:00
Bill Wendling
7273078850 Temporarily reverting r56683. This is causing a failure during the build of llvm-gcc: 
/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -mmacosx-version-min=10.4 -O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Gir/devel/llvm/clean/llvm.obj/include -I/Volumes/Gir/devel/llvm/clean/llvm.src/include -fexceptions -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc.src/gcc/unwind-dw2-fde-darwin.c -o libgcc/./unwind-dw2-fde-darwin.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) && TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical register live information"), function runOnMachineFunction, file /Volumes/Gir/devel/llvm/clean/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp, line 311.
../../llvm-gcc.src/gcc/unwind-dw2.c:1527: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
{standard input}:3521:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
{standard input}:3521:symbol: "_dwarf_reg_size_table" can't be undefined in a subtraction expression
{standard input}:3520:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
...

llvm-svn: 56703
 2008-09-26 22:10:44 +00:00
Dan Gohman
989db64c93 Rename ConstantSDNode's getSignExtended to getSExtValue, for 
consistancy with ConstantInt, and re-implement it in terms
of ConstantInt's getSExtValue.

llvm-svn: 56700
 2008-09-26 21:54:37 +00:00
Evan Cheng
9946443460 Fix @llvm.frameaddress codegen. FP elimination optimization should be disabled when frame address is desired. Also add support for depth > 0. 
llvm-svn: 56683
 2008-09-26 19:48:35 +00:00
Dale Johannesen
3f62c40108 Add "inreg" field to CallSDNode (doesn't increase 
its size).  Adjust various lowering functions to
pass this info through from CallInst.  Use it to
implement sseregparm returns on X86.  Remove
X86_ssecall calling convention.

llvm-svn: 56677
 2008-09-26 19:31:26 +00:00
Devang Patel
64dd7a2e89 Large mechanical patch. 
s/ParamAttr/Attribute/g
s/PAList/AttrList/g
s/FnAttributeWithIndex/AttributeWithIndex/g
s/FnAttr/Attribute/g

This sets the stage 
- to implement function notes as function attributes and 
- to distinguish between function attributes and return value attributes.

This requires corresponding changes in llvm-gcc and clang.

llvm-svn: 56622
 2008-09-25 21:00:45 +00:00
Dale Johannesen
62f64ab4c8 Accept 'inreg' attribute on x86 functions as 
meaning sse_regparm (i.e. float/double values go
in XMM0 instead of ST0).  Update documentation
to reflect reality.

llvm-svn: 56619
 2008-09-25 20:47:45 +00:00
Dan Gohman
9bb92ce6e9 Support for i1 XOR in FastISel. It is actually safe because 
i1 operands are assumed to already by zero-extended.

llvm-svn: 56615
 2008-09-25 17:22:52 +00:00
Dan Gohman
51cd436ad8 Don't print fast-isel debug messages by default. Thanks Chris! 
llvm-svn: 56614
 2008-09-25 17:21:42 +00:00
Dan Gohman
5ee9d9af7f Don't forget the newline in debug output. 
llvm-svn: 56613
 2008-09-25 17:17:27 +00:00
Dan Gohman
b63e6de501 FastISel support for debug info. 
llvm-svn: 56610
 2008-09-25 17:05:24 +00:00
Richard Pennington
1db9263b05 bug 2812: Segmentation fault on a big emdiam processor. 
llvm-svn: 56609
 2008-09-25 16:15:10 +00:00
Dan Gohman
1776533304 Fix a recent fast-isel coverage regression - don't bail out before 
giving the target a chance to materialize constants.

llvm-svn: 56605
 2008-09-25 01:28:51 +00:00
Dan Gohman
ed3216739e Enable DeadMachineInstructionElim when Fast-ISel is enabled. 
llvm-svn: 56604
 2008-09-25 01:14:49 +00:00
Evan Cheng
bac8250ba4 <rdar://problem/6234798> Assertion failed: (!OpInfo.AssignedRegs.Regs.empty() && "Couldn't allocate input reg!") 
llvm-svn: 56597
 2008-09-25 00:14:04 +00:00
Dale Johannesen
4184c23365 Remove SelectionDag early allocation of registers 
for earlyclobbers.  Teach Local RA about earlyclobber,
and add some tests for it.

llvm-svn: 56592
 2008-09-24 23:13:09 +00:00
Bill Wendling
7c60c6e7bf Reapplying r56550 
llvm-svn: 56553
 2008-09-24 10:25:02 +00:00
Bill Wendling
236c4d0204 Forgot this part with my last patch. Sorry about the breakage. 
llvm-svn: 56552
 2008-09-24 10:16:24 +00:00
Eric Christopher
8ffa64fdb5 Temporarily revert r56550 until missing commit can be added. 
llvm-svn: 56551
 2008-09-24 08:30:44 +00:00
Bill Wendling
456b33b615 Refactor the constant folding code into it's own function. And call it from both 
the SelectionDAG and DAGCombiner code. The only functionality change is that now
the DAG combiner is performing the constant folding for these operations instead
of being a no-op.

This is *not* in response to a bug, so there isn't a testcase.

llvm-svn: 56550
 2008-09-24 07:11:26 +00:00