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02c4285643
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Author SHA1 Message Date
Evan Cheng
02c4285643 Fixes a nasty dag combiner bug that causes a bunch of tests to fail at -O0. 
It's not safe to use the two value CombineTo variant to combine away a dead load.
e.g. 
v1, chain2 = load chain1, loc
v2, chain3 = load chain2, loc
v3         = add v2, c 
Now we replace use of v1 with undef, use of chain2 with chain1.
ReplaceAllUsesWith() will iterate through uses of the first load and update operands:
v1, chain2 = load chain1, loc
v2, chain3 = load chain1, loc
v3         = add v2, c 
Now the second load is the same as the first load, SelectionDAG cse will ensure
the use of second load is replaced with the first load.
v1, chain2 = load chain1, loc
v3         = add v1, c
Then v1 is replaced with undef and bad things happen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46099 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 23:11:54 +00:00
Duncan Sands
339e14fbdc Trampoline support for x86-64. This looks like 
it should work, but I have no machine to test
it on.  Committed because it will at least
cause no harm, and maybe someone can test it
for me!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46098 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 22:55:25 +00:00
Chris Lattner
1e9aa716e9 Handle attribute(used) global variables that are i8. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46090 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 21:35:43 +00:00
Dale Johannesen
48ae02fe62 Do not mark EH tables no-dead-strip unless the 
associated function is so marked.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46088 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 19:59:28 +00:00
Chris Lattner
b8b92216f1 add testcase for regression 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46073 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 18:03:52 +00:00
Chris Lattner
7e2e033e23 Fix a ppc long double regression I introduced yesterday due to a 
simplification.  This fixes automotive-basicmath on PPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46072 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 17:59:31 +00:00
Chris Lattner
a66bb39e97 merge a few pieces of code that do the store/load to stack 
pattern to use EmitStackConvert now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46066 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 07:51:34 +00:00
Chris Lattner
1401d15c99 rename ExpandBIT_CONVERT to EmitStackConvert, generalizing 
it to allow it to emit different load and store kinds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46065 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 07:45:30 +00:00
Chris Lattner
23594d4537 simplify a bunch of code by using SelectionDAG::CreateStackTemporary 
instead of inlining its body.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46062 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 07:03:22 +00:00
Chris Lattner
f2670a89a7 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46061 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 06:57:07 +00:00
Chris Lattner
f763288705 make sure to use a cpu that has sse. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46060 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 06:32:02 +00:00
Chris Lattner
78631168d1 make it more clear that this predicate only applies to scalar FP types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46058 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 06:24:21 +00:00
Chris Lattner
1956d15676 introduce a isTypeInSSEReg predicate, which allows us to simplify 
some code.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46055 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 06:19:45 +00:00
Chris Lattner
7ff79c2d9d 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46054 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 05:56:59 +00:00
Chris Lattner
142fb3fee8 make the 'fp return in ST(0)' optimization smart enough to 
look through token factor


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46053 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 05:53:06 +00:00
Chris Lattner
b4a6eaa75b various whitespace cleanups, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46052 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 05:52:18 +00:00
Chris Lattner
572dee71af Factor the ReachesChainWithoutSideEffects out of dag combiner into 
a public SDOperand::reachesChainWithoutSideEffects method.  No 
functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46050 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 05:49:24 +00:00
Devang Patel
8c231e5dda Do not strip llvm.used values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46045 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-16 03:33:05 +00:00
Ted Kremenek
316e984471 Changed ImmutableMap::find to return an iterator instead of a pointer 
to the tree node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46034 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 23:53:53 +00:00
Devang Patel
5e563c3264 - Introduces versioning macro LLVM_LTO_VERSION 
- Communicate symbol visibility
- Communicate code generation model


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46033 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 23:52:34 +00:00
Chris Lattner
6e0a529218 Commit a piece that I missed before, patch by Alain Frisch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46032 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 23:27:40 +00:00
Dale Johannesen
0991d0b7be Missed file from previous checkin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46030 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 23:25:27 +00:00
Dale Johannesen
4af3494452 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46029 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 23:24:56 +00:00
Owen Anderson
40a627ddf8 Move some calls to getVRegDef higher in the callgraph, so they don't get executed as frequently in performance sensitive code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46027 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 22:58:11 +00:00
Chris Lattner
163974de47 improve compatibility with mingw, patch by Alain Frisch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46026 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 22:50:50 +00:00
Chris Lattner
beb168992f add a test to ensure that argpromote of one argument doesn't 
break the byval attr on some other argument.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46025 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 22:38:12 +00:00
Anton Korobeynikov
4cb8618d7f Add description of 'llvm.trap' intrinsic. Also, minor fixes in formatting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46024 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 22:31:34 +00:00
Chris Lattner
e07704fc84 verify x86 generates ud2 for llvm.trap 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46023 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 22:22:02 +00:00
Evan Cheng
426df7538d Unbreak the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46021 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 22:19:35 +00:00
Chris Lattner
9a856b049d new testcase for llvm.trap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46020 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 22:17:26 +00:00
Chris Lattner
e46307a54c If someone wants to implement ppc TRAP, they can go for it :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46019 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 22:15:02 +00:00
Chris Lattner
034f12ea08 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46018 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 22:09:33 +00:00
Chris Lattner
48be23cd65 rename SDTRet -> SDTNone. 
Move definition of 'trap' sdnode up from x86 instrinfo to targetselectiondag.td.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46017 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 22:02:54 +00:00
Owen Anderson
7047dd4d22 Remove DefInst from LiveVariables::VarInfo. Use the facilities on MachineRegisterInfo instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46016 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 22:02:46 +00:00
Chris Lattner
da68d30d24 no need to expand ISD::TRAP to X86ISD::TRAP, just match ISD::TRAP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46015 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 21:58:22 +00:00
Chris Lattner
41bab0beac Add support for targets that have a legal ISD::TRAP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46014 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 21:58:08 +00:00
Chuck Rose III
9a79de3d09 Add files to windows project files. Also include <algorithm> explicitly so that vstudio build works 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46013 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 21:43:17 +00:00
Anton Korobeynikov
6bf3ba67a5 Fix JIT encoding of trap/ud2 instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46012 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 21:40:02 +00:00
Bill Wendling
585e64e63e Reformatted. It was confusing the other way. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46009 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 21:16:32 +00:00
Gordon Henriksen
afa47c5a26 Fix a memory correctness error noticed by valgrind (harmless in practice). 
Thanks to Duncan Sands for noticing it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46007 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 20:02:11 +00:00
Duncan Sands
fdd75125b8 Testcase for gimplify_expr crash caused by an 
unexpected placeholder_expr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46006 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 19:55:41 +00:00
Evan Cheng
e14af4fe74 Oops. Forgot to commit this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46003 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 07:49:54 +00:00
Evan Cheng
4c46fc6bbf Oops. Forgot to commit this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46002 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 07:49:36 +00:00
Anton Korobeynikov
66fac79b89 For PR1839: add initial support for __builtin_trap. llvm-gcc part is missed 
as well as PPC codegen


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46001 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 07:02:33 +00:00
Chris Lattner
0747baaf6a clarify that byval is valid for any pointer argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45998 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 04:34:22 +00:00
Evan Cheng
6bfa8a121d Rename CCIfStruct to CCIfByVal and CCStructAssign to CCPassByVal. Remove unused parameters of CCStructAssign and add size and alignment requirement info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45997 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 03:34:58 +00:00
Evan Cheng
bdfd5ef823 Both x86-32 and x86-64 handle byval parameter attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45996 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 03:15:41 +00:00
Evan Cheng
c67e6e8e82 ByVal stack slot alignment should be at least as large as pointer ABI alignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45995 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 03:14:05 +00:00
Evan Cheng
5daafa9b1b Revert my last commit. Not needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45994 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-15 03:10:35 +00:00
Duncan Sands
15ea48c9ce Simplify CallInst::hasByValArgument using a new method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45974 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-14 19:57:00 +00:00