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Author SHA1 Message Date
Chris Lattner
1f22d9154a Change legalizeop of FP_ROUND and FP_EXTEND to not fall through 
into the ANY_EXTEND/ZERO_EXTEND/SIGN_EXTEND code to simplify it.

Unmerge the code for FP_ROUND and FP_EXTEND from each other to 
make each one simpler.

llvm-svn: 46061
 2008-01-16 06:57:07 +00:00
Chris Lattner
109f0e56f5 make sure to use a cpu that has sse. 
llvm-svn: 46060
 2008-01-16 06:32:02 +00:00
Chris Lattner
2825f8fff0 make it more clear that this predicate only applies to scalar FP types. 
llvm-svn: 46058
 2008-01-16 06:24:21 +00:00
Chris Lattner
fbb75278b2 introduce a isTypeInSSEReg predicate, which allows us to simplify 
some code.  No functionality change.

llvm-svn: 46055
 2008-01-16 06:19:45 +00:00
Chris Lattner
41e1fd13b2 My previous commit had an incomplete message, it should have been: 
make the 'fp return in ST(0)' optimization smart enough to
look through token factor nodes.  THis allows us to compile 
testcases like CodeGen/X86/fp-stack-retcopy.ll into:

_carg:
	subl	$12, %esp
	call	L_foo$stub
	fstpl	(%esp)
	fldl	(%esp)
	addl	$12, %esp
	ret

instead of:

_carg:
	subl	$28, %esp
	call	L_foo$stub
	fstpl	16(%esp)
	movsd	16(%esp), %xmm0
	movsd	%xmm0, 8(%esp)
	fldl	8(%esp)
	addl	$28, %esp
	ret

Still not optimal, but much better and this is a trivial patch.  Fixing 
the rest requires invasive surgery that is is not llvm 2.2 material.

llvm-svn: 46054
 2008-01-16 05:56:59 +00:00
Chris Lattner
1819f31640 make the 'fp return in ST(0)' optimization smart enough to 
look through token factor

llvm-svn: 46053
 2008-01-16 05:53:06 +00:00
Chris Lattner
d9f29a1e3e various whitespace cleanups, no functionality change. 
llvm-svn: 46052
 2008-01-16 05:52:18 +00:00
Chris Lattner
50f1b6f9a5 Factor the ReachesChainWithoutSideEffects out of dag combiner into 
a public SDOperand::reachesChainWithoutSideEffects method.  No 
functionality change.

llvm-svn: 46050
 2008-01-16 05:49:24 +00:00
Devang Patel
a8d63b0b30 Do not strip llvm.used values. 
llvm-svn: 46045
 2008-01-16 03:33:05 +00:00
Ted Kremenek
9b2d0769ed Changed ImmutableMap::find to return an iterator instead of a pointer 
to the tree node.

llvm-svn: 46034
 2008-01-15 23:53:53 +00:00
Devang Patel
2dda5ca0a4 - Introduces versioning macro LLVM_LTO_VERSION 
- Communicate symbol visibility
- Communicate code generation model

llvm-svn: 46033
 2008-01-15 23:52:34 +00:00
Chris Lattner
b7af13397a Commit a piece that I missed before, patch by Alain Frisch 
llvm-svn: 46032
 2008-01-15 23:27:40 +00:00
Dale Johannesen
1268083b64 Missed file from previous checkin. 
llvm-svn: 46030
 2008-01-15 23:25:27 +00:00
Dale Johannesen
319c7bb405 Fix and enable EH for x86-64 Darwin. Adds 
ShortenEHDataFor64Bits as a not-very-accurate
abstraction to cover all the changes in DwarfWriter.
Some cosmetic changes to Darwin assembly code for
gcc testsuite compatibility.

llvm-svn: 46029
 2008-01-15 23:24:56 +00:00
Owen Anderson
214c1c3461 Move some calls to getVRegDef higher in the callgraph, so they don't get executed as frequently in performance sensitive code. 
llvm-svn: 46027
 2008-01-15 22:58:11 +00:00
Chris Lattner
2595fd0ca7 improve compatibility with mingw, patch by Alain Frisch 
llvm-svn: 46026
 2008-01-15 22:50:50 +00:00
Chris Lattner
f0dd2bb4e6 add a test to ensure that argpromote of one argument doesn't 
break the byval attr on some other argument.

llvm-svn: 46025
 2008-01-15 22:38:12 +00:00
Anton Korobeynikov
b26ac8cbb2 Add description of 'llvm.trap' intrinsic. Also, minor fixes in formatting. 
llvm-svn: 46024
 2008-01-15 22:31:34 +00:00
Chris Lattner
afd4056065 verify x86 generates ud2 for llvm.trap 
llvm-svn: 46023
 2008-01-15 22:22:02 +00:00
Evan Cheng
b94df1d6e5 Unbreak the build. 
llvm-svn: 46021
 2008-01-15 22:19:35 +00:00
Chris Lattner
4d3944c554 new testcase for llvm.trap. 
llvm-svn: 46020
 2008-01-15 22:17:26 +00:00
Chris Lattner
dac9c1bcfe If someone wants to implement ppc TRAP, they can go for it :) 
llvm-svn: 46019
 2008-01-15 22:15:02 +00:00
Chris Lattner
bcb087fd62 The type of the 'abort' node should be pointer type (because 
it's a function pointer) not MVT::Other.  This fixes builtin_trap
lowering on ppc, alpha, ia64

llvm-svn: 46018
 2008-01-15 22:09:33 +00:00
Chris Lattner
6846e346a8 rename SDTRet -> SDTNone. 
Move definition of 'trap' sdnode up from x86 instrinfo to targetselectiondag.td.

llvm-svn: 46017
 2008-01-15 22:02:54 +00:00
Owen Anderson
946d55e773 Remove DefInst from LiveVariables::VarInfo. Use the facilities on MachineRegisterInfo instead. 
llvm-svn: 46016
 2008-01-15 22:02:46 +00:00
Chris Lattner
0072ce1ff4 no need to expand ISD::TRAP to X86ISD::TRAP, just match ISD::TRAP. 
llvm-svn: 46015
 2008-01-15 21:58:22 +00:00
Chris Lattner
54fd35650d Add support for targets that have a legal ISD::TRAP. 
llvm-svn: 46014
 2008-01-15 21:58:08 +00:00
Chuck Rose III
7dfc302a45 Add files to windows project files. Also include <algorithm> explicitly so that vstudio build works 
llvm-svn: 46013
 2008-01-15 21:43:17 +00:00
Anton Korobeynikov
44893ee93d Fix JIT encoding of trap/ud2 instruction 
llvm-svn: 46012
 2008-01-15 21:40:02 +00:00
Bill Wendling
0ad07f292c Reformatted. It was confusing the other way. No functionality change. 
llvm-svn: 46009
 2008-01-15 21:16:32 +00:00
Gordon Henriksen
26e9b6653c Fix a memory correctness error noticed by valgrind (harmless in practice). 
Thanks to Duncan Sands for noticing it.

llvm-svn: 46007
 2008-01-15 20:02:11 +00:00
Duncan Sands
1095bdca79 Testcase for gimplify_expr crash caused by an 
unexpected placeholder_expr.

llvm-svn: 46006
 2008-01-15 19:55:41 +00:00
Evan Cheng
5e40103440 Oops. Forgot to commit this. 
llvm-svn: 46003
 2008-01-15 07:49:54 +00:00
Evan Cheng
4eb3d6c8d6 Oops. Forgot to commit this. 
llvm-svn: 46002
 2008-01-15 07:49:36 +00:00
Anton Korobeynikov
08ea121968 For PR1839: add initial support for __builtin_trap. llvm-gcc part is missed 
as well as PPC codegen

llvm-svn: 46001
 2008-01-15 07:02:33 +00:00
Chris Lattner
8c17d65f09 clarify that byval is valid for any pointer argument. 
llvm-svn: 45998
 2008-01-15 04:34:22 +00:00
Evan Cheng
d7403ac663 Rename CCIfStruct to CCIfByVal and CCStructAssign to CCPassByVal. Remove unused parameters of CCStructAssign and add size and alignment requirement info. 
llvm-svn: 45997
 2008-01-15 03:34:58 +00:00
Evan Cheng
4eb7ae04c5 Both x86-32 and x86-64 handle byval parameter attributes. 
llvm-svn: 45996
 2008-01-15 03:15:41 +00:00
Evan Cheng
57714c090b ByVal stack slot alignment should be at least as large as pointer ABI alignment. 
llvm-svn: 45995
 2008-01-15 03:14:05 +00:00
Evan Cheng
fceb25b8e6 Revert my last commit. Not needed. 
llvm-svn: 45994
 2008-01-15 03:10:35 +00:00
Duncan Sands
087d6020ee Simplify CallInst::hasByValArgument using a new method. 
llvm-svn: 45974
 2008-01-14 19:57:00 +00:00
Duncan Sands
81e35b4d47 I noticed that the trampoline straightening transformation could 
drop attributes on varargs call arguments.  Also, it could generate
invalid IR if the transformed call already had the 'nest' attribute
somewhere (this can never happen for code coming from llvm-gcc,
but it's a theoretical possibility).  Fix both problems.

llvm-svn: 45973
 2008-01-14 19:52:09 +00:00
Chris Lattner
b067edf1b3 don't create the post-ra scheduler unless it is enabled. 
llvm-svn: 45972
 2008-01-14 19:00:06 +00:00
Chris Lattner
a6559b0047 remove dead #include 
llvm-svn: 45971
 2008-01-14 18:45:28 +00:00
Evan Cheng
672ba05b73 Need a space to separate Make options. 
llvm-svn: 45964
 2008-01-14 17:58:03 +00:00
Duncan Sands
0e785005ce This test is now the same as byval-1.ll, so remove it. 
llvm-svn: 45960
 2008-01-14 14:57:30 +00:00
Duncan Sands
c6e42dfda1 Test that byval cannot be used with pointers to 
types with no size.

llvm-svn: 45959
 2008-01-14 14:55:05 +00:00
Duncan Sands
5bd24c7449 We now allow byval on fairly general pointer types. 
llvm-svn: 45956
 2008-01-14 06:53:45 +00:00
Chris Lattner
554971a6d6 Improve the FP stackifier to decide all on its own whether 
an instruction kills a register or not.  This is cheap and 
easy to do now that instructions record this on their flags,
and this eliminates the second pass of LiveVariables from the
x86 backend.  This speeds up a release llc by ~2.5%.

llvm-svn: 45955
 2008-01-14 06:41:29 +00:00
Evan Cheng
12fb1dc67e Simplify code. 
llvm-svn: 45950
 2008-01-14 02:38:45 +00:00