llvm/lib/CodeGen, branch release_22http://llvm.orghttps://git.amat.us/llvm/atom/lib/CodeGen?h=release_222008-02-04T06:29:04ZMerge from mainline.2008-02-04T06:29:04ZTanya Lattnertonic@nondot.org2008-02-04T06:29:04Zurn:sha1:3cc40e415cd83aa259afcd945483fe6f66f0bd0f
Don't dump the function!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_22@46699 91177308-0d34-0410-b5e6-96231b3b80d8
When a live virtual register is being clobbered by an implicit def, it is spilled2008-01-17T02:08:17ZEvan Chengevan.cheng@apple.com2008-01-17T02:08:17Zurn:sha1:839b759c38182af8d151db10923c2a6cc7dd5b3d
and the spill is its kill. However, if the local allocator has determined the
register has not been modified (possible when its value was reloaded), it would
not issue a restore. In that case, mark the last use of the virtual register as
kill.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46111 91177308-0d34-0410-b5e6-96231b3b80d8
Replace std::vector<bool> with BitVector.2008-01-17T00:35:26ZEvan Chengevan.cheng@apple.com2008-01-17T00:35:26Zurn:sha1:644340a9bdc663762a58784e0b86c87aeeb41116
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46104 91177308-0d34-0410-b5e6-96231b3b80d8
Fixes a nasty dag combiner bug that causes a bunch of tests to fail at -O0.2008-01-16T23:11:54ZEvan Chengevan.cheng@apple.com2008-01-16T23:11:54Zurn:sha1:02c42856431562376ac8280b57ad744ba83f1e38
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
Do not mark EH tables no-dead-strip unless the2008-01-16T19:59:28ZDale Johannesendalej@apple.com2008-01-16T19:59:28Zurn:sha1:48ae02fe62cafd44c740e67cfae6e7277e61a973
associated function is so marked.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46088 91177308-0d34-0410-b5e6-96231b3b80d8
Fix a ppc long double regression I introduced yesterday due to a2008-01-16T17:59:31ZChris Lattnersabre@nondot.org2008-01-16T17:59:31Zurn:sha1:7e2e033e232a3e414040d6b01c8c07a1095a0983
simplification. This fixes automotive-basicmath on PPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46072 91177308-0d34-0410-b5e6-96231b3b80d8
merge a few pieces of code that do the store/load to stack 2008-01-16T07:51:34ZChris Lattnersabre@nondot.org2008-01-16T07:51:34Zurn:sha1:a66bb39e9779ce17b7d16e311f4b73fddb2ede2f
pattern to use EmitStackConvert now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46066 91177308-0d34-0410-b5e6-96231b3b80d8
rename ExpandBIT_CONVERT to EmitStackConvert, generalizing 2008-01-16T07:45:30ZChris Lattnersabre@nondot.org2008-01-16T07:45:30Zurn:sha1:1401d15c99b284ead81b8476a6db95328c5f28fd
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
simplify a bunch of code by using SelectionDAG::CreateStackTemporary 2008-01-16T07:03:22ZChris Lattnersabre@nondot.org2008-01-16T07:03:22Zurn:sha1:23594d4537fb88a963c6d6993af5027eac9bfbac
instead of inlining its body.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46062 91177308-0d34-0410-b5e6-96231b3b80d8
Change legalizeop of FP_ROUND and FP_EXTEND to not fall through2008-01-16T06:57:07ZChris Lattnersabre@nondot.org2008-01-16T06:57:07Zurn:sha1:f2670a89a7c5e29e7f71ab63e06e75dbf482c55b
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