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142fb3fee8
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21448 Commits

Author SHA1 Message Date
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
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
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
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
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
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
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
Duncan Sands
b0c9b93bb4 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45973 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-14 19:52:09 +00:00
Chris Lattner
459525df1e don't create the post-ra scheduler unless it is enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45972 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-14 19:00:06 +00:00
Chris Lattner
a6c3f80d97 remove dead #include 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45971 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-14 18:45:28 +00:00
Chris Lattner
3cc838433a 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%.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45955 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-14 06:41:29 +00:00
Evan Cheng
42725e7251 Simplify code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45950 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-14 02:38:45 +00:00
Chris Lattner
941db495b8 Fix the miscompilation of MiBench/consumer-lame that was exposed by Evan's 
byval work.  This miscompilation is due to the program indexing an array out
of range and us doing a transformation that broke this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45949 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-14 02:09:12 +00:00
Chris Lattner
6a93fc01a7 The isNotSuitableForSRA property is now dead, don't compute it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45948 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-14 01:32:52 +00:00
Chris Lattner
727c21084d Change SRAGlobal to not depend on isNotSuitableForSRA, which makes it very 
difficult to understand the invariants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45947 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-14 01:31:05 +00:00
Chris Lattner
58e44f49dd Make the 'shrink global to bool' optimization more self contained, and thus 
easier to show that its safe.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45946 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-14 01:17:44 +00:00
Chris Lattner
37ac608623 Turn a memcpy from a double* into a load/store of double instead of 
a load/store of i64.  The later prevents promotion/scalarrepl of the
source and dest in many cases.

This fixes the 300% performance regression of the byval stuff on 
stepanov_v1p2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45945 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-14 00:28:35 +00:00
Chris Lattner
f497b028b8 factor memcpy/memmove simplification out to its own SimplifyMemTransfer 
method, no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45944 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-13 23:50:23 +00:00
Chris Lattner
88b39744ec simplify some code. If we can infer alignment for source and dest that are 
greater than memcpy alignment, and if we lower to load/store, use the best 
alignment info we have.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45943 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-13 22:30:28 +00:00
Chris Lattner
6d0339d451 simplify some code by adding a InsertBitCastBefore method, 
make memmove->memcpy conversion a bit simpler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45942 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-13 22:23:22 +00:00
Duncan Sands
9e9cf0ce31 Whitespace tweak. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45940 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-13 21:20:29 +00:00
Duncan Sands
a41d719803 Remove the assumption that byval has been applied to 
a pointer to a struct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45939 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-13 21:19:59 +00:00
Duncan Sands
421d1c93cc Allow the byval attribute for pointers to any type with 
a size, not just structs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45938 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-13 21:19:12 +00:00
Chris Lattner
ee2b7a4530 Fix PR1907, a nasty miscompilation because instcombine didn't 
realize that ne & sgt  was a signed comparison (it was only 
looking at whether the left compare was signed).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45937 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-13 20:59:02 +00:00
Duncan Sands
e3a8830c1d Small simplification. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45932 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-13 08:12:17 +00:00
Duncan Sands
e1e520f601 When turning a call to a bitcast function into a direct call, 
if this becomes a varargs call then deal correctly with any
parameter attributes on the newly vararg call arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45931 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-13 08:02:44 +00:00
Chris Lattner
3f732807f3 improve cygwin compatibility, patch by Sam Bishop 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45917 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-12 22:54:07 +00:00
Chris Lattner
65844fbd84 clarify a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45914 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-12 18:58:46 +00:00
Evan Cheng
f4a5498ab4 Add hasByValArgument() to test if a call instruction has byval argument(s). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45913 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-12 18:57:32 +00:00
Chris Lattner
92938b7145 we don't have to make an explicit copy of a byval argument when 
inlining a function if we know that the function does not write
to *any* memory.  This implements test/Transforms/Inline/byval2.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45912 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-12 18:54:29 +00:00
Evan Cheng
7723ab3a51 Indirect call with byval parameter requires a cast first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45911 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-12 18:53:07 +00:00
Duncan Sands
cfad1b4f78 Be more liberal in what parameter attributes are 
allowed on the vararg arguments of a call.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45909 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-12 16:42:01 +00:00
Chris Lattner
120d053e3b Allow clients to specify the inline threshold when creating 
the inliner pass.  Patch by Robert Zeh.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45903 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-12 06:49:13 +00:00
Chris Lattner
d3f6a8a8f0 Add support for NetBSD, patch by Krister Walfridsson! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45902 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-12 06:46:09 +00:00
Evan Cheng
8e5712b8bb Code clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45898 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-12 01:08:07 +00:00