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94de7bc3aad46136ea5818b4364ae1cb8ee11912
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21268 Commits

Author SHA1 Message Date
Chris Lattner
94de7bc3aa get def use info more correct. 
llvm-svn: 45821
 2008-01-10 05:12:37 +00:00
Chris Lattner
c72335878d add SDNPMayLoad to the 'load' sdnode definition. This is enough to get all the x86 
instructions (with patterns) that load memory marked, for example.

llvm-svn: 45818
 2008-01-10 04:44:32 +00:00
Chris Lattner
f171482a66 verify that the frame index is immutable before remat'ing (still disabled) 
or being side-effect free.

llvm-svn: 45816
 2008-01-10 04:16:31 +00:00
Owen Anderson
d445b8813f Don't use LiveVariables::VarInfo::DefInst. 
llvm-svn: 45815
 2008-01-10 03:12:54 +00:00
Evan Cheng
a26552493b Mark byval parameter stack objects mutable for now. 
llvm-svn: 45813
 2008-01-10 02:24:25 +00:00
Dale Johannesen
7ecb3b79c7 Emit unused EH frames for weak definitions on Darwin, 
because assembler/linker can't cope with weak absolutes.
PR 1880.

llvm-svn: 45811
 2008-01-10 02:03:30 +00:00
Owen Anderson
4f45cef2f9 Get rid of all uses of LiveVariables::VarInfo::DefInst in favor of the equivalent API from 
MachineRegisterInfo.  Once all clients are switched over, the former will be going away.

llvm-svn: 45805
 2008-01-10 01:36:43 +00:00
Owen Anderson
51b8e20ccf Add more comments explaining the basics of how the decision of when to rename and when to insert 
copies is made.

llvm-svn: 45799
 2008-01-10 00:47:01 +00:00
Evan Cheng
fead113fe0 Do not use the stack pointer directly, issue a copyfromreg instead. Otherwise we can end up with something like ADD32ri %esp, x which two-address pass won't like. 
llvm-svn: 45798
 2008-01-10 00:37:26 +00:00
Owen Anderson
8958a78576 Get rid of the isKillInst predicate. LiveVariables already provides this information. 
llvm-svn: 45797
 2008-01-10 00:33:11 +00:00
Chris Lattner
ec79bba97f Fix PR1845 and rdar://5676945. Generic vectors smaller 
than hardware supported type will be scalarized, so we
can infer their alignment from that info.

We now codegen pr1845 into:

_boolVectorSelect:
	lbz r2, 0(r3)
	stb r2, -16(r1)
	blr 

llvm-svn: 45796
 2008-01-10 00:30:57 +00:00
Evan Cheng
73d1017871 Remove comments that do not correspond to anything after recent refactoring. 
llvm-svn: 45792
 2008-01-10 00:09:10 +00:00
Owen Anderson
1c8152ba03 Copies need to be inserted before the first terminator, not at the end of the block. 
llvm-svn: 45791
 2008-01-10 00:01:41 +00:00
Evan Cheng
0e400d4cb7 Special copy SUnit's do not have SDNode's. 
llvm-svn: 45787
 2008-01-09 23:01:55 +00:00
Owen Anderson
436db42a3c Clean up StrongPHIElimination a bit, and add some more comments to the internal structures. There's 
still more work to do on this front.

llvm-svn: 45783
 2008-01-09 22:40:54 +00:00
Duncan Sands
48f22f0b80 Fix compile failures with g++-4.3. 
llvm-svn: 45781
 2008-01-09 19:42:09 +00:00
Owen Anderson
4de0c3978d StrongPHIElim: Now with even fewer trivial bugs! 
llvm-svn: 45775
 2008-01-09 10:41:39 +00:00
Owen Anderson
77c3fe441b Fix an infinite recursion bug in InsertCopies. 
llvm-svn: 45774
 2008-01-09 10:32:30 +00:00
Owen Anderson
e0fd9bd35a Fix some simple bugs. StrongPHIElimination now does not crash on 164.gzip. 
llvm-svn: 45773
 2008-01-09 06:19:05 +00:00
Chris Lattner
9129f51f9b add a testcase 
llvm-svn: 45768
 2008-01-09 00:37:18 +00:00
Chris Lattner
45e5032b1d add a note 
llvm-svn: 45766
 2008-01-09 00:17:57 +00:00
Chris Lattner
51b01bf8a5 Make load->store deletion a bit smarter. This allows us to compile this: 
void test(long long *P) { *P ^= 1; }

into just:

_test:
	movl	4(%esp), %eax
	xorl	$1, (%eax)
	ret

instead of code like this:

_test:
	movl	4(%esp), %ecx
        xorl    $1, (%ecx)
	movl	4(%ecx), %edx
	movl	%edx, 4(%ecx)
	ret

llvm-svn: 45762
 2008-01-08 23:08:06 +00:00
Owen Anderson
1b0d5c747e Rename registers that do not need copies. 
llvm-svn: 45759
 2008-01-08 21:54:52 +00:00
Duncan Sands
bb956ca730 Use size_t to store Pos, avoid truncating value 
on 64-bit builds.  Analysis and original patch
by Török Edwin.  Code audit found another place
with the same problem, also fixed here.

llvm-svn: 45746
 2008-01-08 10:06:15 +00:00
Chris Lattner
2940c5c56d Implement PR1795, an instcombine hack for forming GEPs with integer pointer arithmetic. 
llvm-svn: 45745
 2008-01-08 07:23:51 +00:00
Chris Lattner
89f36e6b21 Finally implement correct ordered comparisons for PPC, even though 
the code generated is not wonderful.  This turns a miscompilation into
a code quality bug (noted in the ppc readme).  This fixes PR642, which
is over 2 years old (!).  Nate, please review this.

llvm-svn: 45742
 2008-01-08 06:46:30 +00:00
Owen Anderson
812e1ea7cf Actually insert copies now! 
llvm-svn: 45738
 2008-01-08 05:16:15 +00:00
Evan Cheng
00300ddff1 Minor fix to enable x86-64 pic jit (still fails for other reasons). 
llvm-svn: 45734
 2008-01-08 02:07:10 +00:00
Evan Cheng
4951da49aa Fix a x86-64 static codegen bug. This fixes a lot of x86-64 jit failures. 
llvm-svn: 45733
 2008-01-08 02:06:11 +00:00
Bill Wendling
3b6fe5fa8d Silence warning about loss of precision. 
llvm-svn: 45731
 2008-01-08 00:52:29 +00:00
Evan Cheng
7250120177 Only mark instructions that load a single value without extension as isSimpleLoad = 1. 
llvm-svn: 45727
 2008-01-07 23:56:57 +00:00
Chris Lattner
ba734518c1 add a new bit. 
llvm-svn: 45726
 2008-01-07 23:16:55 +00:00
Evan Cheng
8242168ef4 Unbreak x86-64. 
llvm-svn: 45725
 2008-01-07 23:08:23 +00:00
Chris Lattner
ef81aa75f6 add a note that is important for some fp apps. 
llvm-svn: 45723
 2008-01-07 21:59:58 +00:00
Chris Lattner
730d088be1 possible switch lowering improvement. 
llvm-svn: 45720
 2008-01-07 21:38:14 +00:00
Owen Anderson
47299489ec Oops, missed one. 
llvm-svn: 45719
 2008-01-07 21:32:09 +00:00
Owen Anderson
bbc6352d1f Make some predicates static. 
llvm-svn: 45718
 2008-01-07 21:30:40 +00:00
Duncan Sands
c50c210d76 I doubt the address of the Error string was intended 
to be used for the force_interpreter parameter...
Spotted by gcc-4.2.

llvm-svn: 45714
 2008-01-07 19:14:42 +00:00
Duncan Sands
d19a6f4836 Add missing newline at EOF. 
llvm-svn: 45712
 2008-01-07 19:13:36 +00:00
Duncan Sands
b18c30acec Small cleanup for handling of type/parameter attribute 
incompatibility.

llvm-svn: 45704
 2008-01-07 17:16:06 +00:00
Duncan Sands
d8d4170f84 Unbreak x86-32 darwin long double! 
llvm-svn: 45703
 2008-01-07 16:36:38 +00:00
Duncan Sands
28bf7ac219 Fix long double support on x86-32 linux. 
llvm-svn: 45701
 2008-01-07 13:44:22 +00:00
Gordon Henriksen
24db8d383d Pruning includes. 
llvm-svn: 45700
 2008-01-07 13:30:38 +00:00
Bill Wendling
a3bdad153f Operand 1 should be a register. We don't care if it's a preg, vreg, or 0. 
llvm-svn: 45699
 2008-01-07 08:05:29 +00:00
Chris Lattner
d7857eafd0 add a note 
llvm-svn: 45698
 2008-01-07 07:46:23 +00:00
Chris Lattner
f3efadcb5b remove #includage 
llvm-svn: 45697
 2008-01-07 07:42:25 +00:00
Chris Lattner
03ad885039 rename TargetInstrDescriptor -> TargetInstrDesc. 
Make MachineInstr::getDesc return a reference instead
of a pointer, since it can never be null.

llvm-svn: 45695
 2008-01-07 07:27:27 +00:00
Chris Lattner
fd2e338b85 simplify some code. 
llvm-svn: 45693
 2008-01-07 06:47:00 +00:00
Chris Lattner
e99a6caee4 Rename all the M_* flags to be namespace qualified enums, and switch 
all clients over to using predicates instead of these flags directly.
These are now private values which are only to be used to statically
initialize the tables.

llvm-svn: 45692
 2008-01-07 06:42:05 +00:00
Chris Lattner
d004f54155 use predicate. 
llvm-svn: 45691
 2008-01-07 06:37:29 +00:00